Printer Friendly

Ins and outs of pesticide residues.

Ins and outs of pesticide residues

On field-grown crops, pesticide residues tend to diminish rapidly through decomposition by sunlight or rinsing by rain. Regulators usually take this into account when approving instructions for pesticide application. But safety margins based on outdoor use may not protect greenhouse workers, asserts J.J. van Hemmen of the Netherlands Organization for Applied Scientific Research in Rijswijk.

He observes that Dutch flower workers seldom wear gloves in the hot, sweaty greenhouse environment. Moreover, van Hemmen's team found that pesticide residues on greenhouse-grown carnations and roses showed "no decay" over time. One experiment indicated that greenhouse workers who cut, sort or bundle carnations sprayed with chlorothalonil may expose their unprotected hands and forearms to five times the recommended 10-milligram daily limit of this fungicide.

These findings, which surprised many scientists at the conference, highlight the pitfalls of extrapolating data from one occupational setting (outdoor fields) to another (the greenhouse), says Richard A. Fenske of Rutgers University in New Brunswick, N.J., who studies pesticide exposures.
COPYRIGHT 1990 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1990, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:protecting greenhouse workers
Author:Raloff, Janet
Publication:Science News
Date:Dec 1, 1990
Previous Article:A little oxygen is better than none.
Next Article:Reassessing costs of keeping baby dry.

Related Articles
A commonsense approach to pesticides.
Organochlorine pesticides in adipose tissue of persons from El Paso, Texas.
Dangerous Beauty.
Environmental pesticide illness and injury: the need for a national surveillance system.
Killer Tomatoes.
Bloomin' Hazard.
Occupational Exposure to Endocrine-Disrupting Pesticides and the Potential for Developing Hormonal Cancers.
Agricultural pesticide use may be associated with increased risk of prostate cancer.
Activities and organophosphate exposures: response.
Prevention pays for farmworkers.

Terms of use | Copyright © 2017 Farlex, Inc. | Feedback | For webmasters