User:PacCore1/Central Valley groundwater pollution
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San Joaquin Delta River[edit]
The San Joaquin Delta expands over 500 miles. The river serves as California's main source of drinking water. The known pollutants are from salinity, pathogens, pesticides, mercury and various metals.[1] The metals that are listed as pollutants are nickel, aluminum, titanium, cobalt, platinum, chromium, niobium, lead and molybdenum. The pollutants in the river can affect the growth of algae, causing it to produce toxins which are harmful to both animal and human life.[2] There have also been reports of metal contamination from lead and mercury due to human activities in the soil around the Delta. These contaminations have been found to be dated around 1425.[3] The Delta has also been exposed to nitrate contamination due to runoff of excess manure and fertilizer in flowing groundwater.[4]
Resources:[edit]
- ^ "Delta Water Quality – Delta Conservancy". deltaconservancy.ca.gov. Retrieved 2022-12-07.
- ^ "Environmental Health Department". sjgov.org. Retrieved 2022-12-07.
- ^ "History of Metal Contamination Recorded in Sacramento-San Joaquin Delta Soil | U.S. Geological Survey". www.usgs.gov. Retrieved 2022-12-07.
- ^ "Nitrate Contamination in San Joaquin Valley, California". www.nationalpartnership.org. Retrieved 2022-12-07.