Affiliations: School of Municipal and Environmental Engineering,
Harbin Institute of Technology, Harhin 150090, China | Research Center for Eco-Environmental Sciences,
Chinese Academy of Sciences, Beijing 100085, China | Atmospheric Environment Service,Environment Canada,
Downsview, Ontario, Canada
Abstract: The use of technical HCH (1, 2, 3, 4, 5, 6-hexachlorocyclohexane),
DDT (dichlorodiphenyltrichloroethane) and lindane in Heilongjiang River Basin
(HRB) of China was studied. Between 1952 and 1984 the total usage in the HRB
was 108900 t for technical HCH, and 4900 t for DDT, respectively, and the use
of DDT due to dicofol application in the HRB was 220 t from 1984 to 2003. The
usage of lindane in HRB was 109 t from 1991 to 2000. The results show that the
highest technical HCH use (41800 t) in HRB was on maize, accounting for 38.3%
of the total usage on all crops, followed by the use on wheat (28000 t, 25.7%)
and on soybean (26600 t, 24.4%). The highest DDT use (2300 t) was on soybean,
accounting for 46.8% of the total usage on all crops, followed by the use on
maize (1500 t, 31.3%) and on sorghum (600 t, 13.2%). The major use of lindane
was mainly on wheat. Gridded usage inventories of these three OCPs
(organochlorine pesticides), in HRB with a 1/6 ° latitude by 1/4 °
longitude resolution have been created by using different gridded cropland as
surrogates. Some soil samples have also been collected in HRB. Data of usage
and soil concentrations of Σ HCH in HRB match quite well to those in
Shanghai region, and much higher soil concentration of Σ DDT in Shanghai
region could be due to much heavier dicofol use in this region.
