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Your Environment. Your Health.


Program Leads

Danielle Carlin, Ph.D.
Danielle J. Carlin, Ph.D.
Health Scientist Administrator
Tel (919) 541-1409
530 Davis Dr
Keystone Building
Durham, NC 27713

Delivery Instructions
Bonnie R. Joubert, Ph.D.
Bonnie R. Joubert, Ph.D.
Health Scientist Administrator
Tel (919) 541-7667
P.O. Box 12233
Mail Drop K3-12
Research Triangle Park, NC 27709

Delivery | Postal
Delivery Instructions

Program Description

People are exposed to a multitude of environmental toxicants.  Scientists are working to understand the implications of these chemical mixtures, which can sometimes produce health effects greater than each chemical would alone.

For example, exposure to ozone and aldehydes, which are components of smog, produces greater health effects than would be predicted based on each chemical. Also, smokers who are also exposed to radon or asbestos have a greater risk of developing lung cancer. 

What NIEHS is doing

Most exposure research has studied the health effects of single chemicals at specific times, but environmental health scientists are developing methods to study environmental exposures in ways that more closely represent the mixture of exposures that we actually experience. They are examining how these mixtures interact using in vitro and in vivo systems and in humans to determine health effects. Efforts are being made to develop better statistical methods for assessing health effects of mixtures, to characterize real-life mixtures, and to study how mixtures are transported in the environment.

For additional information on what NIEHS grantees are doing, visit our Who We Fund tool.


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