Air quality index table

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. This table is updated hourly. Click here for information about all the monitoring sites.

The table above lists the current peak concentration for the critical pollutant, the corresponding Air Quality Index (AQI) category, and the AQI ratings for each of the NAAQS pollutants that are measured real-time. AQI Calculator - AQI Calculator. DIRECTIONS: Choose the tab for AQI to Concentration or the tab for Concentration to AQI.

Select a pollutant, then enter the AQI value or the concentration (in units). Use the query tool below to get AQI data for one county or CBSA at a time. Place your mouse pointer over the scale displayed above to view information about the Air Quality Index , and each of the rating levels.

The actual index calculation is different for each parameter measured and is specified by the EPA. The following table shows the various breakpoints used in calculating the AQI. The air quality index comprises five colour-coded categories—see table below. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.

The Air Quality Index is adjusted periodically to reflect these changes. At the boundary between AQI categories, there is a discontinuous jump of one AQI unit. The Technical Services Program of the Air Pollution Control Division is responsible for the collection and analysis of air quality data throughout the state. The program is also responsible for providing modeling analyses to determine the impacts various sources will have on air quality. Recommendations for Schools and Child Cares on Poor Air Quality Days Air Quality Index (AQI) Table for Ozone and PM 2. The Clean Air Act identifies two types of national ambient air quality standards.

The higher the number, the more air pollution we are breathing. A number of 1corresponds to the federal health standard for that pollutant. The air pollutant index scale and terms used in describing the air quality levels are as in figure 1. How is the API calculated ? Following the requirement of the Malaysian Ambient Air Quality Standard (MAAQS) from the standpoint of human health implications, the pollutants was measured at varying averaging time according to WHO standard 2. Most of the stations on the map are monitoring both PM 2. To sort on a column, click the column header. That column will be (subtly) highlighted.

Particularly useful is the search box at the top of the table on the right. Separate mulitiple search terms with a space. Search looks across all columns in the table. Downoad a csv version: aqi_breakpoints.

Click the categories below to see the health concerns at each AQI level. The purpose of the Air Quality Index (AQI) is to help you understand what local air quality means to your health. Air quality is a measure of how clean or polluted the air is.

Monitoring air quality is important because polluted air can be bad for our health—and the health of the environment.