Air quality index graph

The AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. You’ve probably heard the words “code red” air quality , especially if you live in or near an urban area. Knowing what the color codes mean can help you protect your health and the health of your loved ones.

Air quality is satisfactory and poses little or no health risk. EPA sets national air quality standards for six common air pollutants. Each year EPA tracks the levels of these air pollutants in the air. EPA posts the of our analyses to this web site.

EPA and local officials use the AQI to provide simple information about your local air quality , how unhealthy air may affect you, and how you can protect your health. Air pollution is a health and environmental issue across all countries of the worl but with large differences in severity. In the interactive map we show death rates from air pollution across the worl measured as the number of deaths per 100people of a given country or region. A value in the unhealthy range, above the national air quality standard for any pollutant, is of concern first for sensitive groups, then for everyone as the AQI value increases. The California Air Resources Board (ARB) gathers air quality (AQ) data for the State of California, ensures the quality of this data, designs and implements air models, and sets ambient air quality standards for the state.

Oregon’s index is based on three pollutants regulated by the federal Clean Air Act: ground-level ozone, particle pollution and nitrogen dioxide. Use the query tool below to get AQI data for one county or CBSA at a time. Click this link if you want a national file that lists all counties or CBSAs. The white line represent the average among all the trend sites.

Click on the Date and Time function in the table to select other periods. The legend for the graphs can be opened from the bottom right corner. These indices are historical and they are published periodically.

Low air pollution for all areas as unsettled weather continues to affect the country bringing good pollution dispersion conditions. This plot provides ozone and PM 2. AirNow for recent days that are not available from AQS. AQS data, as it becomes available, replaces any AirNow data.

Utah have elevated Radon levels? Radon is a lung cancer causing gas that gets in your home and you cannot see it or smell it. Health Effects Statement PM2. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Air Quality issues for the state of Utah. Unhealthy for Sensitive Groups. A FAQ page is available. Public comments and suggestions are encouraged. EPA calculates the AQI for five major air pollutants: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen.

The higher the rating, the greater the danger. Note: this graph does not include all the sources of air pollution considered in AQI calculation. Other sources include ozone and CO. Displaying up-to-date information for Europe, users can gain insights into the air quality in individual countries, regions and cities.

Sydney Air Pollution Went Off the Charts. The air quality index is a piecewise linear function of the pollutant concentration. At the boundary between AQI categories, there is a discontinuous jump of one AQI unit.

RAPCA enforces state and local air pollution regulations and operates an extensive network of air pollution monitors to measure ambient air quality.