EVALUATION AND CORRELATION ANALYSIS OF WATER/SEDIMENT POLLUTION STATUS IN CHENGDU SECTION OF THE TUOJIANG RIVER BASIN

CHEN Yi; LI Longguo; BAI Ting; CHEN Meng; HUANG Yanchun; FU Bin; LI Naiwen

doi:10.13205/j.hjgc.202407016

Volume 42 Issue 7

Jul. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(7): 144-152

CHEN Yi, LI Longguo, BAI Ting, CHEN Meng, HUANG Yanchun, FU Bin, LI Naiwen. EVALUATION AND CORRELATION ANALYSIS OF WATER/SEDIMENT POLLUTION STATUS IN CHENGDU SECTION OF THE TUOJIANG RIVER BASIN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(7): 144-152. doi: 10.13205/j.hjgc.202407016

Citation:

CHEN Yi, LI Longguo, BAI Ting, CHEN Meng, HUANG Yanchun, FU Bin, LI Naiwen. EVALUATION AND CORRELATION ANALYSIS OF WATER/SEDIMENT POLLUTION STATUS IN CHENGDU SECTION OF THE TUOJIANG RIVER BASIN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(7): 144-152. doi: 10.13205/j.hjgc.202407016

Citation:

CHEN Yi, LI Longguo, BAI Ting, CHEN Meng, HUANG Yanchun, FU Bin, LI Naiwen. EVALUATION AND CORRELATION ANALYSIS OF WATER/SEDIMENT POLLUTION STATUS IN CHENGDU SECTION OF THE TUOJIANG RIVER BASIN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(7): 144-152. doi: 10.13205/j.hjgc.202407016

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EVALUATION AND CORRELATION ANALYSIS OF WATER/SEDIMENT POLLUTION STATUS IN CHENGDU SECTION OF THE TUOJIANG RIVER BASIN

doi: 10.13205/j.hjgc.202407016

1. College of Water Resources&Hydropower, Sichuan University, Chengdu 610065, China;
2. State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China;
3. Institute of Mountain Hazards & Environment, Chinese Academy of Sciences College of Resources & Environment, Chengdu 610065, China

Received Date: 2024-05-09
Available Online: 2024-12-02

Abstract

Abstract

The Chengdu Section of the Tuojiang River Basin is densely populated and has prominent river pollution problems. In recent years, the pollution problem has received attention and the situation has been significantly improved. Based on three field investigations from 2022 to 2023, the current pollution status of the overlying water and sediments in the Chengdu Section of the Tuojiang River Basin was evaluated using the Nemerow integrated pollution index method based on field investigations. The correlation between overlying water and sediment was sought to provide a basis for the management of water ecological protection in the Chengdu Section of the Tuojiang River Basin and the Yangtze River. The research results showed that: the most important exceedance factors of the water body were total nitrogen and chemical oxygen demand. The Nemerow comprehensive pollution assessment indicated that the water body was in a moderate to heavy pollution level. The main pollutants of the sediment were total nitrogen, total phosphorus, and heavy metal chromium. The Nemerow comprehensive pollution assessment indicated that the sediment was at light to moderate pollution level. There was a strong correlation between water and sediment, among which the total phosphorus of water was significantly positively correlated with inorganic phosphorus of sediment, and the correlation coefficient was 0.506. Sediment pollutants have a great influence on the water body, so the control of river pollution from external sources should also increase the management of river pollution from internal sources.
- Tuojiang River Basin,
- nutritional salt,
- heavy metals,
- pollution status,
- correlation

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References(40)

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