Read e-book online Determination and Assessment of Pesticide Exposure: Working PDF

Environmental Studies

By Marie Siewierski

ISBN-10: 0080874835

ISBN-13: 9780080874838

ISBN-10: 0444424164

ISBN-13: 9780444424167

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Extra info for Determination and Assessment of Pesticide Exposure: Working Conference Proceedings

Example text

D yield useful exposure data on current or proposed practices. E. The significance (and funding potential) of a project may be enhanced by the addition of an exposure phase if care is taken in its proposal'and implementation. Utilization of an existing resource, in this case a "host project", also helps obtain independent support for the exposure work. F. It is now evident that questions of potential exposure are going to have to be considered in many future registrations, BPAR, OSHA and similar proceedings, and many of these questions - - particularly those of relative exposure - - may best be answered in ancillarv studies.

Exposure to applicators. can be indicated. This is the most likely route of Toxicity can be determined and absorption through the skin Additional dermal studies determine the irritating and allergenic properties of the chemical. Eye studies with rabbits indicate potential to produce irritation. Inhalation exposure is also of practical concern with pesticides. interest is the actual particle size. Of particular Particles of smaller dimensions penetrate farther into the branching bronchial tree and have a greater chance for absorption.

Conducting s p r a y tests d u r i n g t h e calm p e r i o d of e a r l y morning o r l a t e evening is o f t e n necessary of wind. t o minimize t h e h i g h l y v a r i a b l e r e s u l t s due t o t h e e f f e c t s To a v o i d t h i s p r o b l e m , t h e s t a r t i n g t i m e i n o u r t e s t w a s 5 : 3 0 a . m . a l l o w f o r s u f f i c i e n t t i m e to f i n i s h t h e o n e - h o u r v e l o c i t y r e a c h e d m o r e t h a n 2-3 mph. to s p r a y i n g o p e r a t i o n s b e f o r e wind T e c h n i c i a n s a n d e q u i p m e n t o p e r a t o r s who know t h e i r j o b s m u s t h e i n f o r m e d a n d r e h e a r s e a i n e v e r y d e t a i l o f t h e i r i n v o l v e ment t h a t c a n make a d i f f e r e n c e in t h e amount o r d u r a t i o n o f e x p o s u r e .

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Determination and Assessment of Pesticide Exposure: Working Conference Proceedings by Marie Siewierski

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