In 2023, around 22.2 percent of the groundwater samples across China had been categorized as Grade V, which serves mainly as agricultural water use and general landscape requirements in China.
Average groundwater quality in China in 2023, 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). (June 5, 2024). Average groundwater quality in China in 2023, by quality [Graph]. In Statista. Retrieved January 23, 2025, from https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/?__sso_cookie_checker=failed
Ministry of Ecology and Environment (China). "Average groundwater quality in China in 2023, by quality." Chart. June 5, 2024. Statista. Accessed January 23, 2025. https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/?__sso_cookie_checker=failed
Ministry of Ecology and Environment (China). (2024). Average groundwater quality in China in 2023, by quality. Statista. Statista Inc.. Accessed: January 23, 2025. https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/?__sso_cookie_checker=failed
Ministry of Ecology and Environment (China). "Average Groundwater Quality in China in 2023, by Quality." Statista, Statista Inc., 5 Jun 2024, https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/?__sso_cookie_checker=failed
Ministry of Ecology and Environment (China), Average groundwater quality in China in 2023, by quality Statista, https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/?__sso_cookie_checker=failed (last visited January 23, 2025)
Average groundwater quality in China in 2023, by quality [Graph], Ministry of Ecology and Environment (China), June 5, 2024. [Online]. Available: https://www.statista.com/statistics/1065049/china-share-of-groundwater-quality-across-the-country/?__sso_cookie_checker=failed
