5종 농약에 대한 4종 담수조류(freshwater algae)의 감수성 비교

다국어 초록 (Multilingual Abstract)

The purpose of the study was to determine the effects of isoprothiolane, diazinon, butachlor, dimethametryn and molinate in Selenastrum capriconutum, Scenedesmus subspicatus, Chlorella vulgaris and Nitzschia palea during an exposure period or 72 hours. The study was carried out in according with the GECD Guidelines for Testing of Chemicals No 201 Alga, Growth Inhibition Test. The toxicological responses of isoprothiolane to S. capriconutum, S. subspicatus, C. vulgaris and N. palea expressed as in individual ErC?? (Median Effective Concentration by growth rate) value, were 5.87, 9.91, 18.55 and 38.79 ㎎ L?¹, respectively. Diazinone to S. capriconutum, S. subspicatus, C. vulgaris and N. palea expressed as in individual ErC?? value, were 10.31, 11.44, ＞32 and 14.32 ㎎ L?¹, respectively. Butachlor to S. capriconutum, S. subspicatus, C. vulgaris and N. palea expressed as in individual ErC?? value, were 0.002, 0.019, 8.67 and 4.94 ㎎ L?¹, respectively. Dimethametryn to S. capriconutum, S. subspicatus, C. vulgaris and N. palea expressed as in individual EC?? value, were 0.0071, 0.011, 0.0065 and 0.009 ㎎ L?¹, respectively. Molinate to S. capriconutum, S. subspicatus, C. vulgaris and N. palea expressed as in individual ErC?? value, were 0.44, 1.26, 48.84 and 28.52 ㎎ L?¹, respectively. The sensitivities of five pesticides were different depending on freshwater alga in the order of S. capriconutum ＞ S. subspicatus ＞ C. vulgaris, N. palea. Highly significant correlation (r＝0.9677) based on ErC??s were found between S. capriconutum and S. subspicatus.

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