カメダ　ユタカ   Yutaka Kameda   亀田　豊    所属   千葉工業大学  創造工学部 都市環境工学科    職種   教授
言語種別	英語
発行・発表の年月	2015/04
形態種別	学術雑誌
査読	査読あり
標題	Pestcide Contamination Monitored by Passive Sampling in Environmental Water of Japanese Coral Island
執筆形態	共著
掲載誌名	Journal of Water Resources and Ocean Science
掲載区分	国外
出版社・発行元	Science report group
巻・号・頁	4(2),pp.39-43
著者・共著者	Yutaka Tashiro, Yutaka Kameda
概要	The pesticide contaminations in the water of rivers and an estuary of a Japanese coral island with unique ecosystems in enclosed moats and on fringing reefs were analyzed by means of passive sampling. The analyses of the grab water samples detected much less compounds in comparison with the passive samples from the same sites. The time weighted average (TWA) concentrations of these pesticides are estimated as several micrograms per litter in the river waters. Further, 0.1 ng day-1 of procymidone was also detected from a sampler in the middle of the estuary where the river water is largely diluted with seawater. Considerable discharges of chemicals into coastal water by intensive agricultural practices such as flower cultivations on the island is concerned.