Characteristics of water pollution and ecological risk assessment of scenic rivers: a case study of Beichaogang in Shanghai

GU Dungang; CAO Yang; WANG Yizhen; LIU Zaiwei; YAN Lili; LI Guanghui

doi:10.12299/jsues.24-0223

Volume 39 Issue 4

Dec. 2025

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Article Navigation > Journal of Shanghai University of Engineering Science > 2025 > 39(4): 403-408, 427

GU Dungang, CAO Yang, WANG Yizhen, LIU Zaiwei, YAN Lili, LI Guanghui. Characteristics of water pollution and ecological risk assessment of scenic rivers: a case study of Beichaogang in Shanghai[J]. Journal of Shanghai University of Engineering Science, 2025, 39(4): 403-408, 427. doi: 10.12299/jsues.24-0223

Citation:

GU Dungang, CAO Yang, WANG Yizhen, LIU Zaiwei, YAN Lili, LI Guanghui. Characteristics of water pollution and ecological risk assessment of scenic rivers: a case study of Beichaogang in Shanghai[J]. Journal of Shanghai University of Engineering Science, 2025, 39(4): 403-408, 427. doi: 10.12299/jsues.24-0223

Citation:

GU Dungang, CAO Yang, WANG Yizhen, LIU Zaiwei, YAN Lili, LI Guanghui. Characteristics of water pollution and ecological risk assessment of scenic rivers: a case study of Beichaogang in Shanghai[J]. Journal of Shanghai University of Engineering Science, 2025, 39(4): 403-408, 427. doi: 10.12299/jsues.24-0223

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Characteristics of water pollution and ecological risk assessment of scenic rivers: a case study of Beichaogang in Shanghai

doi: 10.12299/jsues.24-0223

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2024-08-11
Available Online: 2026-02-02
Publish Date: 2025-12-01

Abstract

Abstract

To promote high-standard improvement of water quality in urban scenic rivers, taking Beichaogang in Shanghai as a typical representative, a one-year monitoring of overlying water and surface sediments was conducted to identify pollution characteristics and evaluate ecological risks. The results show that water quality and sediment pollution degree in Beichaogang exhibited significant differences on both sides of the sluice gate. The overlying water remains stable within the good grade of water quality index, while serious accumulations of organic matter and nutrients are found in sediments, and the potential ecological risk of heavy metals is at the medium risk level. The implementation of the ecological restoration project significantly improved the water quality of the overlying water, but failed to reduce the content of pollutants in the sediments. Overflow pollution caused by the mixing of rainwater and sewage, and the release of endogenous pollutants from the sediments are likely the main sources of factors BOD₅, total phosphorus, and total nitrogen in Beichaogang.
- scenic rivers,
- water quality assessment,
- nutrients,
- organic matter,
- heavy metals

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References(22)

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