rescheduling strenuous activities outdoors if you are experiencing symptoms. 27 PSI Descriptor General Health Effects 050 Good None 51100 Moderate Few or none for the general population 101200 Unhealthy Mild aggravation of symptoms among susceptible persons.e. Very poor (301400) May cause respiratory illness to the people on prolonged exposure. To convert an air pollutant concentration to an AQI, EPA has developed a calculator. Parker, features six theoretical and empirical studies in contemporary macroeconomics, and a keynote address by former IMF chief economist Olivier Blanchard on which distortions are central to understanding short-run macroeconomic fluctuations. 10 The Clean Air Act (USA) (1990) requires EPA to review its National Ambient Air Quality Standards every five years to reflect evolving health effects information. Risk: Low (13) Moderate (46) High (710) Very high (above 10) Health Risk Air Quality Health Index Health Messages At Risk population *General Population Low 13 Enjoy your usual outdoor activities. Women from 1968 to 2015, examining the impacts of disability on income, consumption, and public transfers. Very high Above 10 Avoid strenuous activities outdoors.
Each year EPA tracks the levels of these air pollutants in the air.
EPA posts the results of our analyses to this web site.
1 Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA.
2 Chemical Sciences Division, noaa Earth System Research Laboratory, Boulder, CO, USA.
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This AQI is divided into six categories indicating increasing levels of health concern. 44 Detailed map about current AQI level and its two day forecast is available from Aerostate web site. EPA Awards 75,000 to Montclair State University for Innovative Stormwater Management Project. 34 caqi edit As of 2012, the EU -supported project CiteairII argued that the caqi had been evaluated on a "large set" of data, and described the caqi's motivation and definition. If the AQI value is calculated hourly, then help me to do my homework SO2, NO2, CO concentrations are measured as average per 24h, O3 concentration is measured as average per hour and the moving average per 8h, PM2.5 and PM10 concentrations are measured as average per hour and per 24h. Poor (201300) May cause breathing discomfort to people on prolonged exposure, and discomfort to people with heart disease.
The concentration of a pollutant when its iaqi is 100 does not equal twice its concentration when its iaqi is 50, nor does it mean the pollutant is twice as harmful. Some of these are the. The higher the CAI value, the greater the level of air pollution.
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