Air Quality Index
Atwater, CA 95301
Air Quality
| Today's Air Quality - Merced, CA | |||
|---|---|---|---|
| Date | Code | AQI Level | Major Pollutant |
| 2/20/2012 6:00 PM | 19 | Small Particulate Matter | |
| Air Quality Forecast - Merced, CA | |||
| Date | Code | AQI Level | Major Pollutant |
| 2/20/2012 | 29 | Ozone | |
| 2/20/2012 | 29 | Ozone | |
| 2/21/2012 | 29 | Ozone | |
| 2/22/2012 | N/A | Small Particulate Matter | |
| 2/23/2012 | N/A | Small Particulate Matter | |
| 2/24/2012 | N/A | Ozone | |
| 2/25/2012 | N/A | Small Particulate Matter | |
| Air Quality Index (AQI) Scale | |||
|---|---|---|---|
| AQI Color | AQI Category | AQI Numbers | |
| Good | 0-50 | ||
| Moderate | 51-100 | ||
| Unhealthy for Sensitive Groups | 101-150 | ||
| Unhealthy | 151-200 | ||
| Very Unhealthy | 201-300 | ||
| Hazardous | 301-500+ | ||
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Hourly Forecast for Atwater, CA 95301
| Time | Conditions | Sky Cover | Chance of Precip. | Heat Index Wind Chill | Wind |
|---|---|---|---|---|---|
| Monday, February 20, 2012 | |||||
| 7 pm |
51° F
| 50% | 0% | 51° F | From NNW 6 mph |
| 8 pm |
49° F
| 48% | 0% | 46° F | From NW 6 mph |
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What is AQI?
The AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health concerns you should be aware of. The AQI focuses on health effects that can happen within a few hours or days after breathing polluted air. EPA uses the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide. For each of these pollutants, EPA has established national air quality standards to protect against harmful health. (EPA-454K-03-002, August 2003, http://www.airnow.gov/)
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