China: share of Yellow River Basin water by quality 2022

As of September 2022, around 56.7 percent of the Yellow River Basin water in China had been categorized as Grade II, which serves mainly as drinking water and belongs to surface water source primary protection zone in China.

Distribution of Yellow River Basin water in China as of September 2022, by water quality

Characteristic	Proportion of water
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Release date

October 2022

More information

Region

China

Survey time period

September 2022

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.

Percentages may not total 100 due to rounding.

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