In 2020, around 17.6 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 2020, by quality
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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Ministry of Ecology and Environment (China). (May 26, 2021). Average groundwater quality in China in 2020, by quality [Graph]. In Statista. Retrieved May 22, 2022, from https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/
Ministry of Ecology and Environment (China). "Average groundwater quality in China in 2020, by quality." Chart. May 26, 2021. Statista. Accessed May 22, 2022. https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/
Ministry of Ecology and Environment (China). (2021). Average groundwater quality in China in 2020, by quality. Statista. Statista Inc.. Accessed: May 22, 2022. https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/
Ministry of Ecology and Environment (China). "Average Groundwater Quality in China in 2020, by Quality." Statista, Statista Inc., 26 May 2021, https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/
Ministry of Ecology and Environment (China), Average groundwater quality in China in 2020, by quality Statista, https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/ (last visited May 22, 2022)
