Risk Zoning of Water Pollution in the Yellow River Basin

被引：0
|
作者：
Zhou X.-F. [1 ,2 ]
Cao G.-Z. [2 ]
Yu F. [2 ]
Yang W.-S. [2 ]
Xu Z.-S. [2 ]
机构：
[1] College of Management and Economics, Tianjin University, Tianjin
[2] Center for Ecological and Environmental Risk and Damage Assessment, Chinese Academy for Environmental Planning, Beijing
来源：
Huanjing Kexue/Environmental Science | 2022年 / 43卷 / 05期
关键词：
Cumulative pollution risk; Emergency pollution risk; Grid; Risk zoning; Yellow River basin;
D O I：
10.13227/j.hjkx.202108315
中图分类号：
学科分类号：
摘要：
Ecological environment protection and high-quality development in the Yellow River basin has been upgraded as a national strategy and is very significant for carrying out water pollution risk zoning assessment in the Yellow River basin. Most of the existing studies focus on the risk zoning of emergency water pollution, and there are few cases of cumulative water pollution risk zoning assessment. Emergency and cumulative water pollution risk zoning of the Yellow River basin in 2019 was identified and assessed based on environmental statistical data, DEM data, water quality monitoring data, and basic geographic data, with a 1 km×1 km grid as the basic unit. The results showed that: ① the area of emergency high-risk area in the Yellow River basin was 1 349 km2, accounting for 0.2% of total area, and the area with relatively high risk was 3 864 km2, accounting for 0.5%. The cumulative high-risk area was 5 834 km2, accounting for 0.7%, and the relatively high-risk area was 25 382 km2, accounting for 3.1%. ② Some areas such as Lanzhou, Wuhai, Bayannur, Baotou, Baoji, Ji'nan, and Dongying had both high emergency and cumulative environmental risks. ③ From the distribution of the main stream perspective, the Lanzhou section, Baiyin section, Zhongwei section, Wuhai section, Bayannur section, Zhengzhou section, Dezhou section, and Dongying section had high emergency and cumulative environmental risks. © 2022, Science Press. All right reserved.
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页码：2448 / 2458
页数：10
相关论文
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