In 2023, river water samples across China categorized as Grade I to III had increased by around 1.5 percentage points compared to the previous year. Among other changes, this was an indication of general improvement of river water quality in China.
Average river water quality change 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.
Low quality surface water refers to surface water worse than Grade V.
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Ministry of Ecology and Environment (China). (June 5, 2024). Average river water quality change in China in 2023, by quality [Graph]. In Statista. Retrieved November 21, 2024, from https://www.statista.com/statistics/1065065/china-change-of-river-water-quality-across-the-country/
Ministry of Ecology and Environment (China). "Average river water quality change in China in 2023, by quality." Chart. June 5, 2024. Statista. Accessed November 21, 2024. https://www.statista.com/statistics/1065065/china-change-of-river-water-quality-across-the-country/
Ministry of Ecology and Environment (China). (2024). Average river water quality change in China in 2023, by quality. Statista. Statista Inc.. Accessed: November 21, 2024. https://www.statista.com/statistics/1065065/china-change-of-river-water-quality-across-the-country/
Ministry of Ecology and Environment (China). "Average River Water Quality Change in China in 2023, by Quality." Statista, Statista Inc., 5 Jun 2024, https://www.statista.com/statistics/1065065/china-change-of-river-water-quality-across-the-country/
Ministry of Ecology and Environment (China), Average river water quality change in China in 2023, by quality Statista, https://www.statista.com/statistics/1065065/china-change-of-river-water-quality-across-the-country/ (last visited November 21, 2024)
Average river water quality change in China in 2023, by quality [Graph], Ministry of Ecology and Environment (China), June 5, 2024. [Online]. Available: https://www.statista.com/statistics/1065065/china-change-of-river-water-quality-across-the-country/
