Effect of illumination on degradation of pyriproxyfen in water-sediment system

被引：18

作者：

Kodaka, Rika ^{[1
]}

Swales, Sharon E. ^{[2
]}

Lewis, Christopher ^{[2
]}

Katagi, Toshiyuki ^{[1
]}

机构：

[1] Sumitomo Chem Co Ltd, Environm Hlth Sci Lab, Takarazuka, Hyogo 6658555, Japan

[2] Covance Labs Ltd, Harrogate HG3 1PY, N Yorkshire, England

来源：

JOURNAL OF PESTICIDE SCIENCE | 2011年 / 36卷 / 01期

关键词：

biodegradation of pesticides; pyriproxyfen; water-sediment system; effect of illumination; METABOLISM; PHOTODEGRADATION; ESFENVALERATE; PESTICIDES; RATS; SOIL;

D O I：

10.1584/jpestics.G10-56

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

The aerobic aquatic soil metabolism of pyriproxyfen [(4-phenoxyphenyl (RS)-2-(2-pyridyloxy) propyl ether] was examined in a UK lake water-sediment system together with the effect of illumination on its degradation profile. The partition of pyriproxyfen in water to the bottom sediment was more rapid under illumination with concomitantly enhanced degradation in the total system. The main photoproduct of pyriproxyfen in sterile water, 2-(pyridin-2-yloxy) propan-1-ol, formed via cleavage of the central ether bond, was further degraded via oxidation in the illuminated water-sediment system and no degradate was found to be accumulated. Hydroxylation at the 4'-position of the phenoxyphenyl moiety dominantly proceeding in darkness was observed as a transient reaction in the early period of illumination. (C) Pesticide Science Society of Japan

引用

页码：33 / 40

页数：8

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