MIDDLE: Antarctic Ozone Thinning–shown in blue and purple, extended out over 16 million square miles or about the same size as North America (2001 NASA satellite image).
BOTTOM: “Bad” ozone at ground-level is harmful to breathe and damages crops, trees, and other vegetation.
For air program information, contact your Regional EPA Office:
…or visit EPA’s website at http://www.epa.gov/air
PRINTED ON RECYCLED PAPER
United States Environmental Protection Agency
EPA-451/K-03-001 June 2003
Office of Air and Radiation MC6101A 1200 Pennsylvania Avenue, NW Washington, DC 20460
about the cover…
a c t i o n s y o u c a n t a k e
High-Altitude “Good” Ozone
• Protect yourself against sunburn. When the UV Index is “high” or “very high”: Limit outdoor activities between 10 am and 4 pm, when the sun is most intense. Twenty minutes before going outside, liberally apply a broad-spectrum sunscreen with a Sun Protection Factor (SPF) of at least 15. Reapply every two hours or after swimming or sweating. For UV Index forecasts, check local media reports or visit: www.epa.gov/sunwise/uvindex.html
• Use approved refrigerants in air conditioning and refrigeration equipment. Make sure technicians that work on your car or home air conditioners or refrigerator are certified to recover the refrigerant. Repair leaky air conditioning units before refilling them.
Ground-Level “Bad” Ozone
• Check the air quality forecast in your area. At times when the Air Quality Index (AQI) is forecast to be unhealthy, limit physical exertion outdoors. In many places, ozone peaks in mid-afternoon to early evening. Change the time of day of strenuous outdoor activity to avoid these hours, or reduce the intensity of the activity. For AQI forecasts, check your local media reports or visit: www.epa.gov/airnow
• Help your local electric utilities reduce ozone air pollution by conserving energy at home and the office. Consider setting your thermostat a little higher in the summer. Participate in your local utilities’ load-sharing and energy conservation programs.
• Reduce air pollution from cars, trucks, gas-powered lawn and garden equipment, boats and other engines by keeping equipment properly tuned and maintained. During the summer, fill your gas tank during the cooler evening hours and be careful not to spill gasoline. Reduce driving, carpool, use public transportation, walk, or bicycle to reduce ozone pollution, especially on hot summer days.
• Use household and garden chemicals wisely. Use low VOC paints and solvents. And be sure to read labels for proper use and disposal.
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