Plastic pollution is the accumulation of plastic products in the environment that adversely affects wildlife, wildlife habitat, or humans. Plastics that act as pollutants are categorized into micro-, meso-, or macro debris, based on size. Plastics are inexpensive and durable, and as a result levels of plastic production by humans are high. However, the chemical structure of most plastics renders them resistant to many natural processes of degradation and as a result they are slow to degrade. Together, these two factors have led to a high prominence of plastic pollution in the environment.
Plastic pollution can afflict land, waterways and oceans. Living organisms, particularly marine animals, can be harmed either by mechanical effects, such as entanglement in plastic objects or problems related to ingestion of plastic waste, or through exposure to chemicals within plastics that interfere with their physiology. Humans are also affected by plastic pollution, such as through disruption of various hormonal mechanisms.
As of 2018, about 380 million tonnes of plastic is produced worldwide each year. From the 1950s up to 2018, an estimated 6.3 billion tonnes of plastic has been produced worldwide, of which an estimated 9% has been recycled and another 12% has been incinerated. In the UK alone, more than 5 million tonnes of plastic are consumed each year, of which only an estimated one-quarter is recycled, with the remainder going to landfills.. This large amount of plastic waste inevitably enters the environment, with studies suggesting that the bodies of 90% of seabirds contain plastic debris. In some areas there have been significant efforts to reduce the prominence of plastic pollution, through reducing plastic consumption and promoting plastic recycling.
- 1 Types of plastic debris
- 2 Decomposition of plastics
- 3 Persistent organic pollutants
- 4 Effects on the environment
- 5 Effects on animals
- 6 Effects on humans
- 7 Reduction efforts
- 8 Action for creating awareness
- 9 See also
- 10 References
- 11 Bibliography
- 12 Further reading
- 13 External links
Types of plastic debris
There are three major forms of plastic that contribute to plastic pollution: microplastics as well as mega- and macro-plastics. Mega- and micro plastics have accumulated in highest densities in the Northern Hemisphere, concentrated around urban centers and water fronts. Plastic can be found off the coast of some islands because of currents carrying the debris. Both mega- and macro-plastics are found in packaging, footwear, and other domestic items that have been washed off of ships or discarded in landfills. Fishing-related items are more likely to be found around remote islands. These may also be referred to as micro-, meso-, and macro debris.
Plastic debris is categorized as either primary or secondary. Primary plastics are in their original form when collected. Examples of these would be bottle caps, cigarette butts, and microbeads. Secondary plastics, on the other hand, account for smaller plastics that have resulted from the degradation of primary plastics.
When going to the store and you buy a six pack of any kind of bottles or cans they normally have this plastic holding them together. The name of this device is called a six-pack holder. This plastic is killing animals and people may not even realize that it is happening. It can get wrapped up in bird’s wings. It also can get stuck around turtle’s shells and make them deformed. As well as any other kind of animal that comes along could potentially be in danger of getting tangled up in them. There have been photos of seals with six pack rings cutting into their necks. Not only are marine animals at risk but also land animals. Opossums, raccoons, and skunks are just a few on the list. There is brewery named Saltwater Brewery that has made a change in their product. They have designed the first ever 100% edible six pack ring. These rings are made up of barley and wheat remnants. Katie Dangerfield informs us that “The world’s oceans will have more plastic than fish by 2050”. Dangerfield also discusses “8 million tons of plastic ends up in the ocean each year. That is the equivalent to one garbage truck per minute and at that rate it could increase two trucks per minute by 2030 and four by 2050”.
Dangerfield, Katie. “Brewery Creates Edible Six-Pack Rings That Are Safe for Animals Eat.”Global News, 8 Oct. 2017, globalnews.ca/news/3792000/edible-six-pack-ring-beer/. Accessed April 20, 2018.
People will let balloons go up into the air for a loved one that have passed. In all reality the balloons do not go up to “heaven.” They simply pop or just or just float back down to the ground. In some cases, they will end up in our sea or back onto the earth. Even children getting balloons and accidentally letting them go is causing problems. Patrick Sciacca notes that “More than 1,248,892 pieces of balloon litter have been removed from the worlds beaches in the past 25 years”. That is just coming from the land. Think about all the balloon pieces that are floating around in our waters. Patrick also informs that “several years ago a sperm whale was found dead from starvation because the mammal ate a Mylar balloon that lodged inside its stomach preventing it from eating”. If a single balloon can starve a whale, the biggest creatures on the planet, then what can it do to all the other marine animals? Sciacca also discusses something that had happened to him. He states, “On a recent trip about 50 miles off New York, I counted two dozen sets of balloons in the one morning. In fact, one arch-shaped group of blue-and-white latex balloons, in numbers too many to count, at first looked like a small boat on the horizon”.
Microdebris are plastic pieces between 2 mm and 5 mm in size. Plastic debris that starts off as meso- or macrodebris can become microdebris through degradation and collisions that break it down into smaller pieces. Microdebris is more commonly referred to as nurdles. Nurdles are recycled to make new plastic items, but they easily end up released into the environment during production because of their small size. They often end up in ocean waters through rivers and streams. Microdebris that come from cleaning and cosmetic products are also referred to as scrubbers. Because microdebris and scrubbers are so small in size, filter-feeding organisms often consume them.
Primary Microplastics, a type of microdebris, known as Nurdles enter the ocean by means of spills during transportation or from land based sources. These micro-plastics can accumulate in the oceans and allow for the accumulation of Persistent Bio-accumulating Toxins such as DDT and PCB's which are hydrophobic in nature and can cause adverse health affects.
A 2004 study by Richard Thompson from the University of Plymouth, UK, found a great amount of microdebris on the beaches and waters in Europe, the Americas, Australia, Africa, and Antarctica. Thompson and his associates found that plastic pellets from both domestic and industrial sources were being broken down into much smaller plastic pieces, some having a diameter smaller than human hair. If not ingested, this microdebris floats instead of being absorbed into the marine environment. Thompson predicts there may be 300,000 plastic items/km2 of sea surface and 100,000 plastic particles/km2 of seabed. International pellet watch collected samples of polythene pellets from 30 beaches from 17 countries which were then analysed for organic micro-pollutants. It was found that pellets found on beaches in America, Vietnam and southern Africa contained compounds from pesticides suggesting a high use of pesticides in the areas.
Plastic debris is categorized as macrodebris when it is larger than 20 mm. These include items such as plastic grocery bags. Macrodebris are often found in ocean waters, and can have a serious impact on the native organisms. Fishing nets have been prime pollutants. Even after they have been abandoned, they continue to trap marine organisms and other plastic debris. Eventually, these abandoned nets become too difficult to remove from the water because they become too heavy, having grown in weight up to 6 tons.
Decomposition of plastics
Plastics themselves contribute to approximately 10% of discarded waste. Many kinds of plastics exist depending on their precursors and the method for their polymerization. Depending on their chemical composition, plastics and resins have varying properties related to contaminant absorption and adsorption. Polymer degradation takes much longer as a result of saline environments and the cooling effect of the sea. These factors contribute to the persistence of plastic debris in certain environments. Recent studies have shown that plastics in the ocean decompose faster than was once thought, due to exposure to sun, rain, and other environmental conditions, resulting in the release of toxic chemicals such as bisphenol A. However, due to the increased volume of plastics in the ocean, decomposition has slowed down. The Marine Conservancy has predicted the decomposition rates of several plastic products. It is estimated that a foam plastic cup will take 50 years, a plastic beverage holder will take 400 years, a disposable nappy will take 450 years, and fishing line will take 600 years to degrade.
Persistent organic pollutants
It was estimated that global production of plastics is approximately 250 mt/yr. Their abundance has been found to transport persistent organic pollutants, also known as POPs. These pollutants have been linked to an increased distribution of algae associated with red tides.
Some researchers suggest that by 2050 there could be more plastic than fish in the oceans by weight.
Effects on the environment
The distribution of plastic debris is highly variable as a result of certain factors such as wind and ocean currents, coastline geography, urban areas, and trade routes. Human population in certain areas also plays a large role in this. Plastics are more likely to be found in enclosed regions such as the Caribbean. It serves as a means of distribution of organisms to remote coasts that are not their native environments. This could potentially increase the variability and dispersal of organisms in specific areas that are less biologically diverse. Plastics can also be used as vectors for chemical contaminants such as persistent organic pollutants and heavy metals.
Chlorinated plastic can release harmful chemicals into the surrounding soil, which can then seep into groundwater or other surrounding water sources and also the ecosystem. This can cause serious harm to the species that drink the water.
Landfill areas contain many different types of plastics. In these landfills, there are many microorganisms which speed up the biodegradation of plastics. The microorganisms include bacteria such as Pseudomonas, nylon-eating bacteria, and Flavobacteria. These bacteria break down nylon through the activity of the nylonase enzyme. Breakdown of biodegradable plastics releases methane, a very powerful greenhouse gas that contributes significantly to global warming.
In 2012, it was estimated that there was approximately 165 million tons of plastic pollution in the world's oceans. One type of plastic that is of concern in terms of ocean plastic pollution is nurdles. Nurdles are manufactured plastic pellets (a type of microplastic) used in the creation of plastic products and are often shipped via cargo ship. Many billions of nurdles are spilled into oceans each year, and it has been estimated that globally, around 10% of beach litter consists of nurdles. Plastics in oceans typically degrade within a year, but not entirely. In the process, toxic chemicals such as bisphenol A and polystyrene can leach into waters from some plastics. Polystyrene pieces and nurdles are the most common types of plastic pollution in oceans, and combined with plastic bags and food containers make up the majority of oceanic debris.
One study estimated that there are more than 5 trillion plastic pieces (defined into the four classes of small microplastics, large microplastics, meso- and macroplastics) afloat at sea.
The litter that is being delivered into the oceans is toxic to marine life, and humans. The toxins that are components of plastic include diethylhexyl phthalate, which is a toxic carcinogen, as well as lead, cadmium, and mercury.
Plankton, fish, and ultimately the human race, through the food chain, ingest these highly toxic carcinogens and chemicals. Consuming the fish that contain these toxins can cause an increase in cancer, immune disorders, and birth defects.
The majority of the litter near and in the ocean is made up of plastics and is a persistent pervasive source of marine pollution. According to Dr. Marcus Eriksen of The 5 Gyres Institute, there are 5.25 trillion particles of plastic pollution that weigh as much as 270,000 tons (2016). This plastic is taken by the ocean currents and accumulates in large vortexes known as ocean gyres. The majority of the gyres become pollution dumps filled with plastic.
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Sources of ocean-based plastic pollution
Almost 90% of plastic debris that pollutes ocean water, which translates to 5.6 million tons, comes from ocean-based sources. Merchant ships expel cargo, sewage, used medical equipment, and other types of waste that contain plastic into the ocean. Naval and research vessels eject waste and military equipment that are deemed unnecessary. Pleasure crafts release fishing gear and other types of waste, either accidentally or through negligent handling. The largest ocean-based source of plastic pollution is discarded fishing gear (including traps and nets), estimated to be up to 90% of plastic debris in some areas.
Continental plastic litter enters the ocean largely through storm-water runoff, flowing into watercourses or directly discharged into coastal waters. Plastic in the ocean has been shown to follow ocean currents which eventually form into what is known as Great Garbage Patches. Knowledge of the routes that plastic follows in ocean currents comes from accidental container drops from ship carriers. For example, in May 1990 The Hansa Carrier, sailing from Korea to USA, broke apart due to a storm, ultimately resulting in thousands of dumped shoes; these eventually started showing up on the U.S western coast, and Hawaii.
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The amount of plastic pollution accumulating in the oceans is estimated at over five trillion pieces floating in the waters. This paper provides an overview of the amount of plastic pollution in the world’s waterways, and why it is there. Researching credible sources on this topic aided in answering the research question: “what would it take to reduce the amount of plastic in the ocean?” The findings suggest businesses to replace 50%, or more, of their common plastic products with biodegradable, or compostable, items because of the following: The main type of plastic being used by businesses is petroleum-based plastics. Businesses should switch to compostable items which break down within 90 days and do not leave a toxic residue (EPA, 2018a).The effect of plastic waste in the ocean has a negative impact on animal life, as well as, the coral reefs. The oceans are filled with harmful plastics which are being digested and entangled by sea life on a daily basis (Dissanayake, 2016). Single-use items are contributing to the amount of plastic found in the five ocean gyres. There were over 260,000 tons of plastic debris in the ocean in 2013 (Eriksen et al., 2014). The problem with single-use items is the waste it involves. While it is very convenient to the consumer and provider to have access to disposable items, it poses a significant problem in landfills and waterway volumes. Industrialized countries need to take aggressive action on the types of plastic being used, or evoke a monetary discipline (Dissanayake, 2016). By creating legislative mandates for recycling, ocean life may be able to thrive, and human life may be able to improve from a healthier environment. Using existing resources to convert from petroleum-based plastics to bioplastics. These conclusions identified a potential solution in reducing plastic pollution. With education and awareness, people can begin to clean the rivers and waters, and make them a safe place for sea animals to live.
Land-based sources of ocean plastic pollution
Estimates for the contribution of land-based plastic vary widely. While one study estimated that a little over 10% of plastic debris in ocean water comes from land-based sources, responsible for 0.8 million tonnes (790,000 long tons; 880,000 short tons) every year. In 2015, Jambeck et al. calculated that 275 million tonnes (271,000,000 long tons; 303,000,000 short tons) of plastic waste was generated in 192 coastal countries in 2010, with 4.8 to 12.7 million tonnes (12,500,000 long tons; 14,000,000 short tons) entering the ocean - a percentage of only up to 5%.
A source that has caused concern is landfills. Most waste in the form of plastic in landfills are single-use items such as packaging. Discarding plastics this way leads to accumulation. Although disposing of plastic waste in landfills has less of a gas emission risk than disposal through incineration, the former has space limitations. Another concern is that the liners acting as protective layers between the landfill and environment can break, thus leaking toxins and contaminating the nearby soil and water. Landfills located near oceans often contribute to ocean debris because content is easily swept up and transported to the sea by wind or small waterways like rivers and streams. Marine debris can also result from sewage water that has not been efficiently treated, which is eventually transported to the ocean through rivers. Plastic items that have been improperly discarded can also be carried to oceans through storm waters.
Plastic pollution in the Pacific Ocean
In the Pacific Gyre, specifically 20°N-40°N latitude, large bodies with floating marine debris can be found. Models of wind patterns and ocean currents indicate that the plastic waste in the northern Pacific is particularly dense where the Subtropical Convergence Zone (STCZ), 23°N-37°N latitude, meets a southwest-northeast line, found north of the Hawaiian archipelago.
In the Pacific, there are two mass buildups: the western garbage patch and the eastern garbage patch, the former off the coast of Japan and the latter between Hawaii and California. The two garbage patches are both part of the great Pacific garbage patch, and are connected through a section of plastic debris off the northern coast of the Hawaiian islands. It is approximated that these garbage patches contain 100 million tons of debris. The waste is not compact, and although most of it is near the surface of the pacific, it can be found up to more than 100 feet deep in the water.
Research published in April 2017 reported "the highest density of plastic rubbish anywhere in the world" on remote and uninhabited Henderson Island in South Pacific as a result of the South Pacific Gyre. The beaches contain an estimated 37.7 million items of debris together weighing 17.6 tonnes. In a study transect on North Beach, each day 17 to 268 new items washed up on a 10-metre section. The study noted that purple hermit crabs (Coenobita spinosus) make their homes in plastic containers washed up on beaches.
Plastic pollution in tap water
A 2017 study found that 83% of tap water samples taken around the world contained plastic pollutants. This was the first study to focus on global drinking water pollution with plastics, and showed that with a contamination rate of 94%, tap water in the United States was the most polluted, followed by Lebanon and India. European countries such as the United Kingdom, Germany and France had the lowest contamination rate, though still as high as 72%. This means that people may be ingesting between 3,000 and 4,000 microparticles of plastic from tap water per year. The analysis found particles of more than 2.5 microns in size, which is 2500 times bigger than a nanometer. It is currently unclear if this contamination is affecting human health, but if the water is also found to contain nano-particle pollutants, there could be adverse impacts on human well-being, according to scientists associated with the study.
However, plastic tap water pollution remains under-studied, as are the links of how pollution transfers between humans, air, water, and soil.
Effects on animals
Plastic pollution has the potential to poison animals, which can then adversely affect human food supplies. Plastic pollution has been described as being highly detrimental to large marine mammals, described in the book Introduction to Marine Biology as posing the "single greatest threat" to them. Some marine species, such as sea turtles, have been found to contain large proportions of plastics in their stomach. When this occurs, the animal typically starves, because the plastic blocks the animal's digestive tract. Marine mammals sometimes become entangled in plastic products such as nets, which can harm or kill them.
Entanglement in plastic debris has been responsible for the deaths of many marine organisms, such as fish, seals, turtles, and birds. These animals get caught in the debris and end up suffocating or drowning. Because they are unable to untangle themselves, they also die from starvation or from their inability to escape predators. Being entangled also often results in severe lacerations and ulcers. In a 2006 report known as Plastic Debris in the World's Oceans, it was estimated that at least 267 different animal species have suffered from entanglement and ingestion of plastic debris. It has been estimated that over 400,000 marine mammals perish annually due to plastic pollution in oceans. Marine organisms get caught in discarded fishing equipment, such as ghost nets. Ropes and nets used to fish are often made of synthetic materials such as nylon, making fishing equipment more durable and buoyant. These organisms can also get caught in circular plastic packaging materials, and if the animal continues to grow in size, the plastic can cut into their flesh. Equipment such as nets can also drag along the seabed, causing damage to coral reefs.
Sea turtles are affected by plastic pollution. Some species are consumers of jelly fish, but often mistake plastic bags for their natural prey. This plastic debris can kill the sea turtle by obstructing the oesophagus. So too are whales; large amounts of plastics have been found in the stomachs of beached whales
Some of the tiniest bits of plastic are being consumed by small fish, in a part of the pelagic zone in the ocean called the Mesopelagic zone, which is 200 to 1000 metres below the ocean surface, and completely dark. Not much is known about these fish, other than that there are many of them. They hide in the darkness of the ocean, avoiding predators and then swimming to the ocean's surface at night to feed. Plastics found in the stomachs of these fish were collected during Malaspina's circumnavigation, a research project that studies the impact of global change on the oceans. A study conducted by Scripps Institution of Oceanography showed that the average plastic content in the stomachs of 141 mesopelagic fish over 27 different species was 9.2%. Their estimate for the ingestion rate of plastic debris by these fish in the North Pacific was between 12000 and 24000 tons per year. The most popular mesopelagic fish is the lantern fish. It resides in the central ocean gyres, a large system of rotating ocean currents. Since lantern fish serve as a primary food source for the fish that consumers purchase, including tuna and swordfish, the plastics they ingest become part of the food chain. The lantern fish is one of the main bait fish in the ocean, and it eats large amounts of plastic fragments, which in turn will not make them nutritious enough for other fish to consume.
Plastic pollution does not only affect animals that live solely in oceans. Seabirds are also greatly affected. In 2004, it was estimated that gulls in the North Sea had an average of thirty pieces of plastic in their stomachs. Seabirds often mistake trash floating on the ocean's surface as prey. Their food sources often has already ingested plastic debris, thus transferring the plastic from prey to predator. Ingested trash can obstruct and physically damage a bird's digestive system, reducing its digestive ability and can lead to malnutrition, starvation, and death. Toxic chemicals called polychlorinated biphenyls (PCBs) also become concentrated on the surface of plastics at sea and are released after seabirds eat them. These chemicals can accumulate in body tissues and have serious lethal effects on a bird's reproductive ability, immune system, and hormone balance. Floating plastic debris can produce ulcers, infections and lead to death. Marine plastic pollution can even reach birds that have never been at the sea. Parents may accidentally feed their nestlings plastic, mistaking it for food. Seabird chicks are the most vulnerable to plastic ingestion since they can't regurgitate like the adult seabirds.
After the initial observation that many of the beaches in New Zealand had high concentrations of plastic pellets, further studies found that different species of prion ingest the plastic debris. Hungry prions mistook these pellets for food, and these particles were found intact within the birds' gizzards and proventriculi. Pecking marks similar to those made by northern fulmars in cuttlebones have been found in plastic debris, such as styrofoam, on the beaches on the Dutch coast, showing that this species of bird also mistakes plastic debris for food.
An estimate of 1.5 million Laysan albatrosses, which inhabit Midway Atoll, all have plastics in their digestive system. Midway Atoll is halfway between Asia and North America, and north of the Hawaiian archipelago. In this remote location, the plastic blockage has proven deadly to these birds. These seabirds choose red, pink, brown, and blue plastic pieces because of similarities to their natural food sources. As a result of plastic ingestion, the digestive tract can be blocked resulting in starvation. The windpipe can also be blocked, which results in suffocation. The debris can also accumulate in the animal's gut, and give them a false sense of fullness which would also result in starvation. On the shore, thousands of birds corpses can be seen with plastic remaining where the stomach once was. The durability of the plastics is visible among the remains. In some instances, the plastic piles are still present while the bird's corpse has decayed.
Similar to humans, animals exposed to plasticizers can experience developmental defects. Specifically, sheep have been found to have lower birth weights when prenatally exposed to bisphenol A. Exposure to BPA can shorten the distance between the eyes of a tadpole. It can also stall development in frogs and can result in a decrease in body length. In different species of fish, exposure can stall egg hatching and result in a decrease in body weight, tail length, and body length.
Effects on humans
Due to the use of chemical additives during plastic production, plastics have potentially harmful effects that could prove to be carcinogenic or promote endocrine disruption. Some of the additives are used as phthalate plasticizers and brominated flame retardants. Through biomonitoring, chemicals in plastics, such as BPA and phthalates, have been identified in the human population. Humans can be exposed to these chemicals through the nose, mouth, or skin. Although the level of exposure varies depending on age and geography, most humans experience simultaneous exposure to many of these chemicals. Average levels of daily exposure are below the levels deemed to be unsafe, but more research needs to be done on the effects of low dose exposure on humans. A lot is unknown on how severely humans are physically affected by these chemicals. Some of the chemicals used in plastic production can cause dermatitis upon contact with human skin. In many plastics, these toxic chemicals are only used in trace amounts, but significant testing is often required to ensure that the toxic elements are contained within the plastic by inert material or polymer.
Due to the pervasiveness of plastic products, most of the human population is constantly exposed to the chemical components of plastics. 95% of adults in the United States have had detectable levels of BPA in their urine. Exposure to chemicals such as BPA have been correlated with disruptions in fertility, reproduction, sexual maturation, and other health effects. Specific phthalates have also resulted in similar biological effects.
Thyroid hormone axis
Bisphenol A affects gene expression related to the thyroid hormone axis, which affects biological functions such as metabolism and development. BPA can decrease thyroid hormone receptor (TR) activity by increasing TR transcriptional corepressor activity. This then decreases the level of thyroid hormone binding proteins that bind to triiodothyronine. By affecting the thyroid hormone axis, BPA expoure can lead to hypothyroidism.
BPA can disrupt normal, physiological levels of sex hormones. It does this by binding to globulins that normally bind to sex hormones such as androgens and estrogens, leading to the disruption of the balance between the two. BPA can also affect the metabolism or the catabolism of sex hormones. It often acts as an antiandrogen or as an estrogen, which can cause disruptions in gonadal development and sperm production.
Efforts to reduce the use of plastics and to promote plastic recycling have occurred. Some supermarkets charge their customers for plastic bags, and in some places more efficient reusable or biodegradable materials are being used in place of plastics. Some communities and businesses have put a ban on some commonly used plastic items, such as bottled water and plastic bags.
Biodegradable and degradable plastics
The use of biodegradable plastics has many advantages and disadvantages. Biodegradables are biopolymers that degrade in industrial composters. Biodegradables do not degrade as efficiently in domestic composters, and during this slower process, methane gas may be emitted.
There are also other types of degradable materials that are not considered to be biopolymers, because they are oil-based, similar to other conventional plastics. These plastics are made to be more degradable through the use of different additives, which help them degrade when exposed to UV rays or other physical stressors. yet, biodegradation-promoting additives for polymers have been shown not to significantly increase biodegradation.
Although biodegradable and degradable plastics have helped reduce plastic pollution, there are some drawbacks. One issue concerning both types of plastics is that they do not break down very efficiently in natural environments. There, degradable plastics that are oil-based may break down into smaller fractions, at which point they do not degrade further.
Up to 60% of used plastic medical equipment is incinerated rather than deposited in a landfill as a precautionary measure to lessen the transmission of disease. This has allowed for a large decrease in the amount of plastic waste that stems from medical equipment. If plastic waste is not incinerated and disposed of properly, a harmful amount of toxins can be released and dispersed as a gas through air or as ash through air and waterways. Many studies have been done concerning the gaseous emissions that result from the incineration process.
Agencies such as the Environmental Protection Agency and the Food and Drug Administration often do not assess the safety of new chemicals until after a negative side effect is shown. Once they suspect a chemical may be toxic, it is studied to determine the human reference dose, which is determined to be the lowest observable adverse effect level. During these studies, a high dose is tested to see if it causes any adverse health effects, and if it does not, lower doses are considered to be safe as well. This does not take into account the fact that with some chemicals found in plastics, such as BPA; lower doses can have a discernible effect. Even with this often complex evaluation process, policies have been put into place in order to help alleviate plastic pollution and its effects. Government regulations have been implemented that ban some chemicals from being used in specific plastic products.
In Canada, the United States, and the European Union, BPA has been banned from being incorporated in the production of baby bottles and children's cups, due to health concerns and the higher vulnerability of younger children to the effects of BPA. Taxes have been established in order to discourage specific ways of managing plastic waste. The landfill tax, for example, creates an incentive to choose to recycle plastics rather than contain them in landfills, by making the latter more expensive. There has also been a standardization of the types of plastics that can be considered compostable. The European Norm EN 13432, which was set by the European Committee for Standardization (CEN), lists the standards that plastics must meet, in terms of compostability and biodegradability, in order to officially be labeled as compostable.
Institutional arrangements in Canada
The Canadian federal government formed a current institution that protects marine areas; this includes the mitigation of plastic pollution. In 1997, Canada adopted legislation for oceans management and passed the Oceans Act. Federal governance, Regional Governance, and Aboriginal Peoples are the actors involved in the process of decision-making and implementation of the decision. The Regional Governance bodies are federal, provincial, and territorial government agencies that hold responsibilities of the marine environment. Aboriginal Peoples in Canada have treaty and non-treaty rights related to ocean activities. According to the Canadian government, they respect these rights and work with Aboriginal groups in oceans management activities.
With the Oceans Act made legal, Canada made a commitment to conserve and protect the oceans. The Ocean Acts' underlying principle is sustainable development, precautionary and integrated management approach to ensure that there is a comprehensive understanding in protecting marine areas. In the integrated management approach, the Oceans Act designates federal responsibility to the Minister of Fisheries and Oceans Canada for any new and emerging ocean-related activities. The Act encourages collaboration and coordination within the government that unifies interested parties. Moreover, the Oceans Act engages any Canadians who are interested in being informed of the decision-making regarding ocean environment.
In 2005, federal organizations developed the Federal Marine Protected Areas Strategy. This strategy is a collaborative approach implemented by Fisheries and Oceans Canada, Parks Canada, and Environment Canada to plan and manage federal marine protected areas. The federal marine protected areas work with Aboriginal groups, industries, academia, environmental groups, and NGOs to strengthen marine protected areas. The federal marine protected areas network consists of three core programs: Marine Protected Areas, Marine Wildlife Areas, and National Marine Conservation Areas. The MPA is a program to be noted because it is significant in protecting ecosystems from the effects of industrial activities. The MPA guiding principles are Integrated Management, ecosystem-based management approach, Adaptive Management Approach, Precautionary Principle, and Flexible Management Approach. All five guiding principles are used collectively and simultaneously to collaborate and respect legislative mandates of individual departments, to use scientific knowledge and traditional ecological knowledge (TEK) to manage human activities, to monitor and report on programs to meet conservation objectives of MPAs, to use best available information in the absence of scientific certainty, and to maintain a balance between conservation needs and sustainable development objectives.
The two common forms of waste collection include curbside collection and the use of drop-off recycling centers. About 87 percent of the population in the U.S.A. (273 million people) have access to curbside and drop-off recycling centers. In curbside collection, which is available to about 63 percent of the U.S.A. population (193 million people), people place designated plastics in a special bin to be picked up by a public or private hauling company. Most curbside programs collect more than one type of plastic resin; usually both PETE and HDPE. At drop-off recycling centers, which are available to 68 percent of the U.S.A. population (213 million people), people take their recyclables to a centrally located facility. Once collected, the plastics are delivered to a materials recovery facility (MRF) or handler for sorting into single-resin streams to increase product value. The sorted plastics are then baled to reduce shipping costs to reclaimers.
There are varying rates of recycling per type of plastic, and in 2011, the overall plastic recycling rate was approximately 8% in the United States. Approximately 2.7 million tons of plastics were recycled in the U.S. in 2011. Some plastics are recycled more than others; in 2011 "29 percent of HDPE bottles and 29 percent of PET bottles and jars were recycled."
Non-usage and reduction in usage
The Ministry of Drinking Water and Sanitation, Government of India, has requested various governmental departments to avoid the use of plastic bottles to provide drinking water during governmental meetings, etc., and to instead make arrangements for providing drinking water that do not generate plastic waste. The state of Sikkim has restricted the usage of plastic water bottles (in government functions and meetings) and styrofoam products. The state of Bihar has banned the usage of plastic water bottles in governmental meetings.
The 2015 National Games of India, organised in Thiruvananthapuram, was associated with green protocols. This was initiated by Suchitwa Mission that aimed for "zero-waste" venues. To make the event "disposable-free", there was ban on the usage of disposable water bottles. The event witnessed the usage of reusable tableware and stainless steel tumblers. Athletes were provided with refillable steel flasks. It is estimated that these green practices stopped the generation of 120 metric tonnes of disposable waste.
Action for creating awareness
On 11 April 2013 in order to create awareness, artist Maria Cristina Finucci founded The Garbage Patch State at UNESCO –Paris in front of Director General Irina Bokova. First of a series of events under the patronage of UNESCO and of Italian Ministry of the Environment. International organisations have also been raising awareness of plastic pollution.
- Diisononyl phthalate, a phthalate used as a plasticizer.
- Great Pacific garbage patch, an area of exceptionally high concentrations of pelagic plastics, chemical sludge, and other debris
- Marine pollution#Plastic debris
- Municipal solid waste
- Plastic particle water pollution
- Plastic Pollution Coalition
- United Nations Ocean Conference
- World Environment Day (theme in 2018)
- "Plastic pollution". Encyclopædia Britannica. Retrieved 1 August 2013.
- Hammer, J; Kraak, MH; Parsons, JR (2012). "Plastics in the marine environment: the dark side of a modern gift". Reviews of environmental contamination and toxicology. 220: 1–44. doi:10.1007/978-1-4614-3414-6_1.
- Hester, Ronald E.; Harrison, R. M. (editors) (2011). Marine Pollution and Human Health. Royal Society of Chemistry. pp. 84-85. ISBN 184973240X
- Lytle, Claire Le Guern. "Plastic Pollution". Coastal Care. Retrieved 19 February 2015.
- "The known unknowns of plastic pollution". The Economist. 3 March 2018. Retrieved 17 June 2018.
- Nomadic, Global. "Turning rubbish into money – environmental innovation leads the way".
- Mathieu-Denoncourt, Justine; Wallace, Sarah J.; de Solla, Shane R.; Langlois, Valerie S. (November 2014). "Plasticizer endocrine disruption: Highlighting developmental and reproductive effects in mammals and non-mammalian aquatic species". General and Comparative Endocrinology. doi:10.1016/j.ygcen.2014.11.003.
- Walker, T.R., Xanthos, D. (2018) A call for Canada to move toward zero plastic waste by reducing and recycling single-use plastics. Resources, Conservation & Recycling. DOI: https://doi.org/10.1016/j.resconrec.2018.02.014.
- Walker, T. R., Reid, K., Arnould, J. P., Croxall, J. P. (1997). Marine debris surveys at Bird Island, South Georgia 1990–1995. Marine Pollution Bulletin, 34(1), 61-65. https://doi.org/10.1016/S0025-326X(96)00053-7
- Barnes, D. K. A.; Galgani, F.; Thompson, R. C.; Barlaz, M. (14 June 2009). "Accumulation and fragmentation of plastic debris in global environments". Philosophical Transactions of the Royal Society B: Biological Sciences. 364 (1526): 1985–1998. doi:10.1098/rstb.2008.0205. PMC . PMID 19528051.
- Pettipas, S., Bernier, M., Walker, T. R. (2016). A Canadian policy framework to mitigate plastic marine pollution. Marine Policy, 68, 117-122. https://doi.org/10.1016/j.marpol.2016.02.025
- Driedger, Alexander G.J.; Dürr, Hans H.; Mitchell, Kristen; Van Cappellen, Philippe (March 2015). "Plastic debris in the Laurentian Great Lakes: A review". Journal of Great Lakes Research. 41 (1): 9–19. doi:10.1016/j.jglr.2014.12.020.
- "Brewery Creates Edible Six-Pack Rings that are safe for animals to eat".
- Sciacca, Patrick (14 September 2016). "Up and Away... Sort Of". Yachting Magazine. Retrieved 20 April 2018.
- User, Super. "Small, Smaller, Microscopic!". Retrieved 2017-11-30.
- Otaga, Y. (October 2009) 'International Pellet Watch: Global monitoring of persistent organic pollutants (POPs) in coastal waters. 1. Initial phase data on PCBs, DDTs, and HCHs'. Marine Pollution Bulletin. 58(10), 1437-1446
- Chemical Society, American. "Plastics In Oceans Decompose, Release Hazardous Chemicals, Surprising New Study Says". Science Daily. Science Daily. Retrieved 15 March 2015.
- Sutter, John D. (12 December 2016). "How to stop the sixth mass extinction". CNN. Retrieved 18 September 2017.
- Aggarwal,Poonam; (et al.) Interactive Environmental Education Book VIII. Pitambar Publishing. p. 86. ISBN 8120913736
- Biello, David (5 June 2011). "Are Biodegradeable Plastics Doing More Harm Than Good?". Scientific American. Retrieved 1 August 2013.
- Knight 2012, p. 12.
- Knight 2012, p. 11.
- Knight 2012, p. 13.
- Eriksen, Marcus (10 December 2014). "Plastic Pollution in the World's Oceans: More than 5 Trillion Plastic Pieces Weighing over 250,000 Tons Afloat at Sea". PLOS ONE. 9: e111913. doi:10.1371/journal.pone.0111913. PMC . PMID 25494041.
- Fernandez, Esteve; Chatenoud, Liliane (1 July 1999). "Fish consumption and cancer risk". The American Journal of Clinical Nutrition. 70 issue 1: 85–90. doi:10.1093/ajcn/70.1.85.
- Walker, T. R. (2018). Drowning in debris: Solutions for a global pervasive marine pollution problem. Marine Pollution Bulletin, 126, 338.
- Cozar, Andres. "Plastic debris in the open ocean". PNAS. PNAS. Retrieved 4 December 2017.
- "Great Pacific Garbage Patch". Marine debris program. NOAA. Retrieved 4 December 2017.
- "Ocean Currents". SEOS. SEOS. Retrieved 4 December 2017.
- Jambeck, J. R.; Geyer, R.; Wilcox, C.; Siegler, T. R.; Perryman, M.; Andrady, A.; Narayan, R.; Law, K. L. (2015-02-12). "Plastic waste inputs from land into the ocean". Science. American Association for the Advancement of Science (AAAS). 347 (6223): 768–771. doi:10.1126/science.1260352. ISSN 0036-8075.
- North, Emily J.; Halden, Rolf U. (1 January 2013). "Plastics and environmental health: the road ahead". Reviews on Environmental Health. 28 (1): 1–8. doi:10.1515/reveh-2012-0030. PMC . PMID 23337043.
- "Marine Debris in the North Pacific A Summary of Existing Information and Identification of Data Gaps" (PDF). United States Environmental Protection Agency.
- Exceptional and rapid accumulation of anthropogenic debris on one of the world's most remote and pristine islands, Jennifer L. Lavers and Alexander L. Bond, PNAS, doi:10.1073/pnas.1619818114 approved 7 April 2017, accessed 16 May 2017
- Remote South Pacific island has highest levels of plastic rubbish in the world, Dani Cooper, ABC News Online, 16 May 2017
- Hunt, Elle (15 May 2017). "38 million pieces of plastic waste found on uninhabited South Pacific island". The Guardian. Retrieved 16 May 2017.
- "No one lives on this remote Pacific island — but it's covered in 38 million pieces of our trash". Washington Post. Retrieved 16 May 2017.
- "Invisibles". orbmedia.org. Retrieved 15 September 2017.
- "Synthetic Polymer Contamination in Global Drinking Water". orbmedia.org. Retrieved 19 September 2017.
- "Your tap water may contain plastic, researchers warn (Update)". Retrieved 15 September 2017.
- editor, Damian Carrington Environment (5 September 2017). "Plastic fibres found in tap water around the world, study reveals". The Guardian. ISSN 0261-3077. Retrieved 15 September 2017.
- Lui, Kevin. "Plastic Fibers Are Found in '83% of the World's Tap Water'". Time. Retrieved 15 September 2017.
- Daniel D. Chiras (2004). Environmental Science: Creating a Sustainable Future. Jones & Bartlett Learning. pp. 517-518. ISBN 0763735698
- Knight 2012, p. 5.
- Karleskint, George; (et al.) (2009).Introduction to Marine Biology. Cengage Learning. p. 536. ISBN 0495561975
- "Plastic Debris in the World's Oceans". Greenpeace International. Retrieved 5 May 2018.
- Gregory, M. R. (14 June 2009). "Environmental implications of plastic debris in marine settings--entanglement, ingestion, smothering, hangers-on, hitch-hiking and alien invasions". Philosophical Transactions of the Royal Society B: Biological Sciences. 364 (1526): 2013–2025. doi:10.1098/rstb.2008.0265. PMC . PMID 19528053.
- Parker, L. (2014). New Map Reveals Extent of Ocean Plastic. National Geographic
- Fernandez-Armesto, F. (2006). Pathfinders: A Global History of Exploration
- Carson, H.S., Colbert, S.L., Kaylor, M.J., McDermid, K.J. (2011) ‘Small plastic debris changes water movement and heat transfer through beach sediments’. Marine Pollution Bulletin [online]. 62(8), 1708-1713.
- Moore, C. J. (2014) Choking the Oceans with Plastic. New York Times
- Taylor, Matthew (15 November 2017). "Plastics found in stomachs of deepest sea creatures". The Guardian. Retrieved 16 November 2017.
- "Whale dies from eating more than 80 plastic bags". The Guardian. June 2, 2018. Retrieved June 17, 2018.
- Hill, Marquita K. (1997). Understanding Environmental Pollution. Cambridge University Press. p. 257. ISBN 1139486403
- Rodríguez, A; et al. "High prevalence of parental delivery of plastic debris in Cory's shearwaters (Calonectris diomedea)". Marine Pollution Bulletin. 64: 2219–2223. doi:10.1016/j.marpolbul.2012.06.011.
- Derraik, J. G. B. (2002) The Pollution of the Marine Environment by Plastic Debris: a review
- Thompson, R. C.; Moore, C. J.; vom Saal, F. S.; Swan, S. H. (14 June 2009). "Plastics, the environment and human health: current consensus and future trends". Philosophical Transactions of the Royal Society B: Biological Sciences. 364 (1526): 2153–2166. doi:10.1098/rstb.2009.0053. PMC . PMID 19528062.
- Brydson, J. A. (1999). Plastics Materials. Butterworth-Heinemann. pp. 103-104. ISBN 0750641320
- (1973). Polyvinyl Chloride Liquor Bottles: Environmental Impact Statement. United States. Department of the Treasury (contributor).
- Malkin, Bonnie (8 July 2009). "Australian town bans bottled water". The Daily Telegraph. Retrieved 1 August 2013.
- Susan Selke, Rafael Auras, Tuan Anh Nguyen, Edgar Castro Aguirre, Rijosh Cheruvathur, Yan Liu: Evaluation of Biodegradation-Promoting Additives for Plastics. In: Environmental Science & Technology. 49, 2015, p. 3769, doi:10.1021/es504258u.
- Groff, Tricia (2010). "Bisphenol A: invisible pollution". Current Opinion in Pediatrics. 22 (4): 524–529. doi:10.1097/MOP.0b013e32833b03f8.
- "EN 13432". Green Plastics.
- Government of Canada (2014). "Oceans Act: Governance for sustainable marine ecosystems". Government of Canada. Government of Canada.
- "AF&PA Releases Community Recycling Survey Results". Archived from the original on 2 June 2012. Retrieved 3 February 2013.
- "Life cycle of a plastic product". Americanchemistry.com. Archived from the original on 17 March 2010. Retrieved 3 September 2012.
- "Plastics". Epa.gov. Retrieved 3 September 2012.
- "Avoiding use of bottled water" (PDF). Retrieved 2 September 2016.
- "Avoiding use of bottled water" (PDF). Retrieved 2 September 2016.
- "Ban on Styrofoam Products and Packaged Water Bottles". Retrieved 2 September 2016.
- "Bihar bans plastic packaged water bottles". Retrieved 2 September 2016.
- "Green rules of the National Games". The Hindu.
- "National Games: Green Panel Recommends Ban on Plastic". The New Indian Express.
- "Kochi a 'Museum City' Too". The New Indian Express. 8 February 2016. Archived from the original on 2 April 2015. Retrieved 27 April 2016.
- "National Games 2015: Simple Steps To Keep Games Green". yentha.com.
- "Setting a New Precedent". The New Indian Express.
- "The garbage patch territory turns into a new state - United Nations Educational, Scientific and Cultural Organization". unesco.org.
- "Archived copy". Archived from the original on 14 July 2014. Retrieved 3 November 2014.
- Derraik, José G.B (2002). "The pollution of the marine environment by plastic debris: A review". Marine Pollution Bulletin. 44 (9): 842–52. doi:10.1016/S0025-326X(02)00220-5. PMID 12405208.
- Hopewell, Jefferson; Dvorak, Robert; Kosior, Edward (2009). "Plastics recycling: Challenges and opportunities". Philosophical Transactions of the Royal Society B: Biological Sciences. 364 (1526): 2115–26. doi:10.1098/rstb.2008.0311. PMC . PMID 19528059.
- Knight, Geof (2012). Plastic Pollution. Capstone. ISBN 978-1-4329-6039-1
- Colette, Wabnitz & Wallace J. Nichols. Editorial: Plastic Pollution: An Ocean Emergency. 3 March 2010. 28 January 2013.
- Biodegradable Plastics and Marine Litter. Misconceptions, concerns and impacts on marine environments, 2015, United Nations Environment Programme (UNEP), Nairobi.
- A million bottles a minute: world's plastic binge 'as dangerous as climate change'. The Guardian. 28 June 2017.
- Guess What's Showing Up In Our Shellfish? One Word: Plastics. NPR. 19 September 2017
|Wikimedia Commons has media related to Plastic pollution.|
- Ark, Planet. Plastic Bag Reduction. 1 December 2011. 29 January 2013.
- Jessica, A. Knoblauch. Environmental Health News. 2 July 2009. 29 January 2013
- Treacy, Megan. "Biodegradable Plastics are Adding to Landfill Methane Emissions". 10 June 2011. 29 January 2013.
- Tina, L. Plastic Pollution and Wastefulness. 20 February 2011. 29 January 2013.
- Boyan Slat. "How the oceans can clean themselves". TED Talk. Retrieved 4 January 2016.
- "22 Facts About Plastic Pollution (And 10 Things We Can Do About It)". ecowatch.com. Retrieved 4 January 2016.
- "Ocean Phoenix Project". SAS Ocean Phoenix. Archived from the original on 7 March 2016. Retrieved 5 March 2016.
- "Plastic Not So Fantastic Project". 21bottle.com. Retrieved 28 December 2016.
- "Tide of plastic rubbish discovered floating off idyllic Caribbean island coastline". The Independent. Retrieved 31 October 2017.