HAN Zheng-ping,ZHANG Li-wei,CHEN Xue-wen.Sampling and Characteristic Analysis of Contaminated Sediments in A River Estuary[J].China Water & Wastewater,2020,36(17 17):79-84.
Sampling and Characteristic Analysis of Contaminated Sediments in A River Estuary
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
17 17
Page:
79-84
Column:
Date of publication:
2020-09-01
- Keywords:
- contaminated sediment; estuary; sample treatment; feature analysis
- Abstract:
- Aiming at the deteriorating ecological problems in estuary areas, a multi-point and multi-level sampling and analysis system for contaminated sediments in a river estuary area was designed and developed. According to the existing domestic standards, a criterion for determining the pollution degree was established, and influence of the characteristics of the contaminated sediments on estuary pollution was studied. The main sources of pollution in the region were dichlorodiphenyltrichloroethane (DDT) and benzene hexachloride (BHC). The DDT concentration was maintained at a high concentration level throughout the sampling depth. The maximum DDT concentration was up to 1.51 mg/kg, and the over-standard sites accounted for 60% of all the measured sites. The distribution pattern of BHC was the same as DDT, and the maximum concentration was 1.89 mg/kg. Through analysis of the characteristics of these two pollutants, the ecological restoration project in the estuary area had been promoted.
Last Update:
2020-09-01