EPA regulates inhalable Snowboarding Everything Will Kill So Choose Something Fun Shirt. Particles of sand and large dust, which are larger than 10 micrometers, are not regulated by EPA. EPA’s national and regional rules to reduce emissions of pollutants that form PM will help the state. And local governments meet the Agency’s national air quality standards. Learn about how air quality standards help reduce PM. You can use air quality alerts to protect yourself and others when PM reaches harmful levels. AirNow: Every day the Air Quality Index (AQI) tells you how clean or polluted your outdoor air is.
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Along with Snowboarding Everything Will Kill So Choose Something Fun Shirt health effects that may be of concern. But the AQI translates air quality data into numbers. And colors that help people understand when to take action to protect their health. Go to About AirNow to learn how you can get AQI notifications. Also learn how the Air Quality Flag Program can help air agencies, schools, and other community organizations to notify their citizens of harmful conditions and adjust outdoor physical activities as needed. National Ambient Air Quality Standards (NAAQS) for PM pollution specify a maximum amount of PM to be present in outdoor air. There are different standards for PM10 and PM2.5 (see Particulate Matter (PM) Basics to learn about particle types). Limiting PM pollution in the air protects human health and the environment.
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