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River water quality in China 2018-2019, by level

Published by Samantha Wong, Dec 7, 2020
In 2019, around 51 percent of the river water samples across China had been categorized as Grade II, which serves mainly as drinking water and belongs to surface water source primary protection zone in China.

Average river water quality in China from 2018 to 2019, by quality

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Source

Release date

June 2020

Region

China

Survey time period

2018 to 2019

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; Grad IV: Industrial water use and recreational water use; Grade V: Agricultural water use and General landscape requirements.

Low quality surface water refers to surface water worse than Grade V.

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