× The federal government has shut down due to the failures of the President and Congress to continue government funding. Millions of Californians receiving benefits from state programs may be impacted. For now, California’s Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) will continue to provide services and enroll eligible families as long as funding is available. No new federal funding to California WIC will be provided until the President and Congress take action. Families should continue to use their WIC benefits and attend their WIC appointments. This information is subject to change, so please monitor the California WIC website for updates.

Please be wary of potential highly partisan political messaging while visiting federal government websites for information related to the federal government shutdown.

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environmental health investigations branch

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Air Pollution and Traffic Exhaust

Traffic exhaust is  a major source of air pollution in California, especially in urban areas, and is a major contributor to greenhouse gases. Traffic exhaust pollutants include compounds such as carbon monoxide, nitrogen oxides, particulates (fine dust and soot), also called "criteria" air pollutants, and a wide range of toxic air pollutants such as benzene or PAHs.  Potential health effects from being exposed to traffic exhaust pollutants include respiratory illnesses, such as asthma, heart disease, adverse reproductive or pregnancy outcomes, cancer, and shortening of the life span.

EHIB has examined health effects as well as issues of environmental justice in terms of who lives near busy roads.

Research Papers

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