Air quality index values

AQI values below 1are generally thought of as satisfactory. Use the query tool below to get AQI data for one county or CBSA at a time. The AQI value for your community is between and 50. Air quality is satisfactory and poses little or no health risk. An air quality index ( AQI ) is a number used by government agencies to communicate to the public how polluted the air currently is or how polluted it is forecast to become.

As the AQI increases , an increasingly large percentage of the population is likely to experience increasingly severe adverse health effects. 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. Environmental Protection Agency (EPA) has set to protect public health. Preliminary Data Warning: The information presented is the first available data from our air monitoring network.

The values have not been verified for accuracy or been through the appropriate quality assurance and control validation procedures. 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.

Disclaimer: The data used in the compilation of this page have undergone only preliminary quality assurance checks. If you select an individual pollutant, then each row contains the date, the AQI value for the selected pollutant, and the corresponding AQI category. Monitoring air quality is important because polluted air can be bad for our health—and the health of the environment.

Current and forecast air quality. It transforms complex air quality data of various pollutants into a single number and colour. AQI has six categories of air. EPA has developed a formula to convert PM 2. An AQI value is calculated for each individual pollutant using standard formulas. AQI) value that can be of assistance in making health-related decisions.

For example, an AQI value of represents good air quality with little potential to affect public health, while an AQI value over 3represents hazardous air quality. Air Quality Index (AQI) is a tool to showcase air quality status. When the AQI level ( air quality index ) is below 5 people are breathing fresh, clean air. People are no longer exposed to any health risk because the quality of air is pure.

Be highly active outside and spend more time. An AQI greater than 1is considered to be above the national standard or NAAQS. Index values make it easier to interpret air quality data because they reduce the complexity associated with pollutant concentrations data. It is a health protection tool that is designed to help you make decisions to protect your health by limiting short-term exposure to air pollution and adjusting your activity levels during increased levels of air pollution. So a place that has very high air quality standards may, over time as the air improves, put the same air quality in a less healthy category than before, as the physical breakpoint thresholds are lowered.

The critical pollutant is the pollutant with the highest AQI rating measured in the area. Displaying up-to-date information for Europe, users can gain insights into the air quality in individual countries, regions and cities. Most of the stations on the map are monitoring both PM 2.