Environmental Health Features

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DNA strands
Learn how ALS researchers from around the world can access and use ALS Biorepository samples as a valuable resource in their fight to identify the causes of ALS.
Winter Weather

Winter Weather

A large pile of children's toy jewelry - beads, bracelets and charms

Lead in Toys

Girl drinking out of public water fountain with text - Environmental exposure questions? Expert answers.


A lab technician in blue gloves is processing a lab test.

Newborn Screening

A wildfire rages on the side of a mountain with a town below.


blue sky with bright sun shining on cracked land, scanty vegetation


Learn about heat-related illness and how to stay cool and safe in hot weather.

Extreme Heat

Learn more about how CDC’s National Center for Environmental Health (NCEH) and the Agency for Toxic Substances and Disease Registry (ATSDR) protect and promote environmental health across the United States.

Environmental Health

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Multiple streaks of lightning touch ground as a large storm passes over a city.

Lightning Safety

Photo: Young woman with asthma inhaller

Asthma Awareness

Bridging the Voice of ALS Patients

National ALS Registry

Tornado approaching town


Toxic Substances Portal

Spring Weather

Page last reviewed: February 9, 2021