Affiliation:
1. Heilongjiang Province Hydrology and Water Resources Center, Harbin 150001, China
2. Institute for Advanced Technology of Heilongjiang Academy of Sciences, Harbin 150001, China
Abstract
In the Chinese city of Wuchang, Heilongjiang Province, a survey was conducted to track the concentrations and distributions of several organic pollutants near drinking water reservoirs, such as conventional organochlorine pesticides (OCPs) and currently in use pesticides (CUPs), including organophosphorus pesticides (OPPs) and neutral herbicides (NHs). From October 2007 to July 2008, a total of 32 pairs of water and sediment samples were gathered and examined. The results showed that the total concentrations of OCPs, OPPs, and NHs in the sediments were 0.42–7.8 ng/dm3 below the detection limit of these pollutants in sediments. The total concentration of OPPs in the water varied from the LoD to 180 ng/dm3 while NHs were 6.3 to 740 ng/dm3. While the CUP concentrations changed significantly throughout the year, the OCP concentrations were less impacted by seasonal fluctuations, indicating no recent introduction of these chemicals. The use of pesticides on crops in the primarily agricultural area was the main factor contributing to higher concentrations of CUPs during the summer.
Funder
Provincial funded project of Heilongjiang Provincial Finance Department
National High Technology Research and Development Program of China
Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology
Subject
Filtration and Separation,Analytical Chemistry
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