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The Impact of Pesticides - Academy Publish

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than those in Lake Biwa and Seta River. <strong>The</strong> concentration levels and the kinds <strong>of</strong>the herbicides detected in River (1) were different from those in River (2). This isprobably due to the difference <strong>of</strong> sampling date. That is, the kinds and amounts <strong>of</strong>the used herbicides were gradually changing from May 25 and 26 to June 15 and 17.Fig. 3 Detection <strong>of</strong> insecticides in Lake Biwa and Seta River waterFig. 4 Detection <strong>of</strong> insecticides in River (1) flowing into eastern area <strong>of</strong> Lake Biwa<strong>Academy</strong><strong>Publish</strong>.org - <strong>The</strong> <strong>Impact</strong> <strong>of</strong> <strong>Pesticides</strong>268

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