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Distribution of Liao River Basin water in China 2021, by water quality

Published by Samantha Wong, Apr 19, 2021
As of February 2021, around 31 percent of the Liao River Basin water in China was categorized as Grade II, which serves mainly as drinking water and belongs to surface water source primarily in a protection zone in China.

Distribution of Liao River Basin water in China as of February 2021, by water quality grade

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Source

Release date

April 2021

Region

China

Survey time period

February 2021

Supplementary notes

According to Surface Water Environment Quality Standards of China, the water quality is categorized as follows:

Grade I: source water and national nature reserve; Grade II: drinking water and surface water source primary protection zone; Grade III: drinking water and surface water source secondary protection zone; Grade IV: industrial water use and recreational water use; Grade V: agricultural and general landscape water use.

Low quality surface water refers to surface water below Grade V.

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