Samples (river water, tap water, soil, sediment, fish and shellfish) collected in Downstream Area of Nakdong River were analyzed for organochlorine pesticides by G.C. equipped with electron capture detector.
Residue levels of organochlorine pesticides in the river water and tap water ranged from less than detection limit (ND) to 56ppt. Total BHC concentration in the river water and tap water were found to increase in summer and decrease in winter. The variation appeared to be related to rain fall. α-BHC and β-BHC concentration in the soil were ND-3.3ppb and ND-769.7ppb, respectively. α-BHC and β-BHC concentration in the sediment were ND-2.0ppb and ND-409.9ppb, respectively. Concentration factor of total BHC in the sediment ranged from 83 to 3213. In fish, Carasssus carassius and shellfish, Anodonta woodiana(Lea) the concentration factor of β-BHC and total BHC were 2,609, 435 and 3,261, 375, respectively.
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