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Health Issues

Air Quality

Outdoor air quality in the U.S. has improved since the 1990s, but many challenges remain in protecting public health from air quality problems. More »


Asthma is a serious environmental health threat, but it can be controlled by taking medication and by avoiding contact with environmental "triggers" such as dust mites, furry pets, mold, tobacco smoke, and certain chemicals. More »

Carbon Monoxide Poisoning

Carbon monoxide (CO), an odorless, colorless gas that can cause sudden illness and death, is found in combustion fumes produced by cars and trucks, generators, stoves, lanterns, burning charcoal and wood, gas ranges, and heating systems. More »


Mold grows anywhere there is moisture but can be prevented. Exposure to damp and moldy environments may cause nasal stuffiness, throat irritation, coughing or wheezing, eye irritation, or skin irritation. More »