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Ground water quality in China 2021, by level

Published by Statista Research Department, Mar 14, 2023
In 2021, around 20.6 percent of the groundwater samples across China had been categorized as Grade V, which serves mainly as agricultural water uses and general landscape requirements in China.

Average groundwater quality in China in 2021, by quality

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Release date

May 2022

Region

China

Survey time period

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

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