Skip Navigation
National Institute of Environmental Health SciencesNational Institutes of Health
Increase text size Decrease text size Print this page

Allergens & Irritants

Asthma is one of our nation's most common chronic health conditions. Many substances can aggravate allergies or increase the severity of asthma symptoms in individuals who are sensitive to these allergens or irritants.

This Web site is designed to help you SURVIVE THE SEASONS by providing information on asthma, allergies and some of the most common seasonal and non-seasonal allergens and asthma irritants such as:

In addition, we provide PREVENTIVE STRATEGIES for each to help you avoid exposure to these substances.

Please remember that information contained on this Web site is provided for educational and informational purposes only and should not be used to guide the diagnosis or treatment of any medical condition without the advice and supervision of a licensed, qualified health care provider.

For information on other pulmonary research performed at NIEHS, visit the Division of Intramural Reseach Laboratory of Respiratory Biology and the Division of Extramural Research and Training Translational Research sites.

Back to top Back to top

For further information about asthma, contact:
National Institute of Environmental Health Sciences
Office of Communications
P.O. Box 12233
Research Triangle Park, N.C. 27709
(919) 541-3345 Department of Health & Human Services National Institutes of Health
This page URL:
NIEHS website:
Email the Web Manager at
Last Reviewed: July 19, 2007