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Monitoring of pesticide residues at alpine and sloped-land in Gangwondo, Korea  

Park, Dong-Sik (Division of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Kim, Tae-Han (Division of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Kim, Seong-Soo (Division of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Lee, Sang-Min (Division of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Kim, Song-Mun (Division of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Hur, Jang-Hyun (Division of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Publication Information
The Korean Journal of Pesticide Science / v.8, no.3, 2004 , pp. 189-197 More about this Journal
Abstract
Alpine and sloped-land in Gangwondo, Korea is the most important land type for cultivation of Chinese cabbage. However, farmers in these regions have major problems with insect pests, weeds and disease. Over use or inappropriate use of agrochemicals occurs frequently. No intensive study of pesticide contamination in this area has been done. The work presented in this paper addresses this deficiency. We measured pesticide residues within soil and water samples using multiresidue analysis. Samples were collected bimonthly from April to October, 2002 at three sites with to sampling spots. At the three sites, Pyeongchang, Jeongseon and Taebaeck, pesticides most frequently detected (>30% of samples) in soil samples were endosulfan, fluazinam, diniconazole, alachlor, prothiofos and dimethomorph. The amount of pesticide residues in the soils was ranged from 0.004 to $0.412\;mg\;kg^{-1}$ in these samples. Non-registered pesticides were also detected in these samples, indicating illegal use of pesticides. No pesticide were detected in the water samples collected from those sites. The results showed that pesticide residues might be dependant on physiochemical properties of pesticides, application history and soil properties. This study provides basic data for appropriate pesticide use on alpine and sloped-land in Korea.
Keywords
alpine and sloped-land; multiresidue analysis; Chinese cabbage; pesticide residues;
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