Tha Chin River

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Tourist boats on the Tha Chin near Nakhon Chai Si
Map of the Chao Phraya River drainage basin showing the Tha Chin River

The Tha Chin river (Thai: แม่น้ำท่าจีน, rtgsMaenam Tha Chin, pronounced [mɛ̂ːnáːm tʰâː tɕiːn]) is a distributary of the Chao Phraya river, Thailand. It splits near the province of Chai Nat and then flows west from the Chao Phraya through the central plains, until it empties into the Gulf of Thailand in Samut Sakhon Province.

Regional names[edit]

The Tha Chin river has many regional names. After it splits from Chao Phraya river at Chai Nat, it is called Makham Thao River; while passing Suphan Buri it is the Suphan River; while passing Nakhon Pathom it becomes the Nakhon Chai Si river. Only near its mouth at Samut Sakhon does it become the Tha Chin River, named after the former name of Samut Sakhon. The name Tha Chin is the convention used in most scientific documents.

Tributaries[edit]

Tributaries of the Tha Chin include the Kra Sieo, Yang, Tawip, Chorakhe Sam, Bang Len, and Chin Si Rivers.

Tha Chin basin[edit]

The Tha Chin drains a total area of 13,681 square kilometers (5,282 sq mi).[1] The Tha Chin Basin is part of the Chao Phraya Watershed.

Health of the river[edit]

The Thai Pollution Control Department (PCD) has reported that the water quality of rivers flowing into the upper Gulf of Thailand has seriously deteriorated in the past decade. The department found the Tha Chin estuary contains bacteria and nutrient pollution from phosphates, phosphorus, and nitrogen. Nutrient pollution causes algae to grow faster than ecosystems can handle, harming water quality, food resources for aquatic animals, and marine habitats. It also decreases the oxygen that fish need to survive. PCD rated water quality in the river in 2015 as "poor".[2]:56 The PCD findings indicated large amounts of wastewater were discharged into the river from households, industry, and agriculture.[3]

References[edit]

  1. ^ Basins of Thailand
  2. ^ Thailand State of Pollution Report 2015 (PDF). Bangkok: Pollution Control Department. ISBN 978-616-316-327-1. Retrieved 23 September 2016. 
  3. ^ Wangkiat, Paritta (25 September 2016). "Breach of trust". Bangkok Post. Retrieved 25 September 2016. 

Coordinates: 15°13′33″N 100°04′44″E / 15.22583°N 100.07889°E / 15.22583; 100.07889