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Rice samples were collected from main grain producing areas of Jiangxi Province for testing the concentration of DDTs using GC-ECD. The result shows that the concentration ranges from not detected to 0.1474 mg/Kg, the total detection rate is as large as 75.41% and the highest detection rate among four metabolites appeared in p,p'-DDE and the total, exceeding standard rate by 19.67% totally. In view...
To study HCHs and DDTs contents and their spatial distribution in the agricultural soil of Shanghai suburb, the residue amounts of HCHs and DDTs in 2413 surface soil samples were determined. The results showed that concentrations of HCHs ranged from 0 to 1.000 mg/kg and DDTs ranged from 0 to 3.000 mg/kg, with occurrence of 88.3% and 98.3%, respectively. The cumulate ratios of soil samples with HCHs...
Organochlorine pesticides were detected and analyzed in surface water, bottom water and porewater from Honghu Lake, middle of China. The concentrations of total HCHs in surface water and bottom water were 3.52-5.68 ng/L and 3.77-6.86 ng/L respectively, and the concentrations of total DDTs were 0.39-2.38 ng/L and 0.91-6.05 ng/L respectively. Compared with the water quality of other regions, the concentrations...
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