Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in China
The driving forces and their spatiotemporal differences of pollutant discharge in 30 provinces in China from 2001 to 2020 were investigated by adopting the logarithmic mean divisia index (LMDI) method, distinguishing between industrial and domestic wastewater pollutant discharge. Our study results s...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-06-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2025.1576420/full |
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| author | Chen Zhang Yanxiao Liu Ling Lan Yue You Yuepeng Ye |
| author_facet | Chen Zhang Yanxiao Liu Ling Lan Yue You Yuepeng Ye |
| author_sort | Chen Zhang |
| collection | DOAJ |
| description | The driving forces and their spatiotemporal differences of pollutant discharge in 30 provinces in China from 2001 to 2020 were investigated by adopting the logarithmic mean divisia index (LMDI) method, distinguishing between industrial and domestic wastewater pollutant discharge. Our study results show that economic expansion was the dominant driver of chemical oxygen demand (COD) and NH3-N discharge in China, mainly due to the impact of rapid economic development in the developed eastern provinces. The gap among 30 provinces in the contribution related to the driving effects of industrial COD and NH3-N discharge greatly narrowed with time, tending toward the national average. It showed the significant effectiveness of industrial structure adjustment, clean production, and the technology of industrial wastewater treatment across the country. Industrial COD and NH3-N discharge has been reduced to a certain extent. However, with rapid economic growth and urbanization, the domestic sewage treatment volume was still increasing, and the growth rate was faster than that of GDP in some provinces. The technology of many provinces had gradually failed to meet the growing demand for treating domestic sewage pollutants. Consequently, the influencing contributions had significant regional differences among provinces. The governance of the water environment in China should attach importance to technological advances for domestic water conservation and wastewater treatment in the future. |
| format | Article |
| id | doaj-art-496ea74ea1c242ea9935713e0c69dd74 |
| institution | DOAJ |
| issn | 2296-665X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj-art-496ea74ea1c242ea9935713e0c69dd742025-08-20T03:19:50ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2025-06-011310.3389/fenvs.2025.15764201576420Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in ChinaChen ZhangYanxiao LiuLing LanYue YouYuepeng YeThe driving forces and their spatiotemporal differences of pollutant discharge in 30 provinces in China from 2001 to 2020 were investigated by adopting the logarithmic mean divisia index (LMDI) method, distinguishing between industrial and domestic wastewater pollutant discharge. Our study results show that economic expansion was the dominant driver of chemical oxygen demand (COD) and NH3-N discharge in China, mainly due to the impact of rapid economic development in the developed eastern provinces. The gap among 30 provinces in the contribution related to the driving effects of industrial COD and NH3-N discharge greatly narrowed with time, tending toward the national average. It showed the significant effectiveness of industrial structure adjustment, clean production, and the technology of industrial wastewater treatment across the country. Industrial COD and NH3-N discharge has been reduced to a certain extent. However, with rapid economic growth and urbanization, the domestic sewage treatment volume was still increasing, and the growth rate was faster than that of GDP in some provinces. The technology of many provinces had gradually failed to meet the growing demand for treating domestic sewage pollutants. Consequently, the influencing contributions had significant regional differences among provinces. The governance of the water environment in China should attach importance to technological advances for domestic water conservation and wastewater treatment in the future.https://www.frontiersin.org/articles/10.3389/fenvs.2025.1576420/fullCOD/NH3-N dischargeindustrial and domestic pollutioninfluencing effectsspatiotemporal differentiationlogarithmic mean divisia index method |
| spellingShingle | Chen Zhang Yanxiao Liu Ling Lan Yue You Yuepeng Ye Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in China Frontiers in Environmental Science COD/NH3-N discharge industrial and domestic pollution influencing effects spatiotemporal differentiation logarithmic mean divisia index method |
| title | Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in China |
| title_full | Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in China |
| title_fullStr | Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in China |
| title_full_unstemmed | Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in China |
| title_short | Influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in China |
| title_sort | influencing effects and spatiotemporal differentiation of pollutant discharge from industrial wastewater and domestic sewage in china |
| topic | COD/NH3-N discharge industrial and domestic pollution influencing effects spatiotemporal differentiation logarithmic mean divisia index method |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2025.1576420/full |
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