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Art director Rhonda Saunders modified a Photodisc image to create the mirror versions of “good” and “bad” pesticide applications.
Feature
Probing the Enantioselectivity of Chiral Pesticides
As much as 25% of the pesticides in use are chiral, but the compounds are typically supplied as racemic mixtures. While one enantiomer may have the desired effect on a target species, the other enantiomer or enantiomers may not. Moreover, the various chiral forms could have different toxicities, degradation rates, and environmental effects. Therefore, a comprehensive risk assessment requires determining the enantiomer selectivity of these pesticides.
Departments
HBCD: Facts and insinuations · Response
Welcome to ES&T’s Asia office
- EU contemplates first-ever limit for PM2.5
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- U.S. Army Corps of Engineers allows wetlands to go unprotected, GAO finds
The long and the short of perfluorinated replacements
PDF: 2006 Advisory Board
News
Visit ES&T’s free Online News Site to read the most recent news.
It’s in the microwave popcorn, not the Teflon pan
Preliminary data from the U.S. Food and Drug Administration suggest that eating microwave popcorn may expose people to chemicals that break down to produce PFOA, a suspected carcinogen.
Arsenic and old landfills
Landfill leachate is tailor-made to create an arsenic problem in groundwater.
California’s shifting sands
Southern California beaches get half their sand from sea cliffs.
Guibin Jiang to direct ES&T’s first Asia office
ES&T establishes its first editorial office in Asia.
Judith Curry
ES&T talks to the chair of the Georgia Institute of Technology’s School of Earth and Atmospheric Studies about new research, including her own, which suggests that global warming is increasing the intensity of hurricanes.
Biodiversity: Friend or foe of invasive species?
Scientists argue about whether native biodiversity is a firewall to keep out exotic invaders or an indicator of where to look for the next zebra mussel.
News Briefs
- Solar cycles impact warming
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- Trouble looms Down Under
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- Great Lakes are suffering
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- More fish contaminated by mercury
News Section PDF
A PDF containing all of this issue's news stories and briefs.
