Air quality index chart

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. Where can I find the AQI? Checking local air quality is as easy as checking the weather.

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. 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. 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. Use the chart below to help reduce your exposure and protect your health. See AQI Table for how to interpret the colors. The Index numbers represent a ranking for the pollutant, not the measurement of a pollutant.

Air Quality Guide for Ozone. Ground-level ozone is one of our nation’s most common air pollutants. Public comments and suggestions are encouraged. A FAQ page is available. Making decisions based on facts rather than emotion or ‘gut feel’ is the only way to manage a situation effectively.

This site provides air quality data collected at outdoor monitors across the United States, Puerto Rico, and the U. Users can downloa output, view or visualize the data. It reflects the air pollutant with the highest reading in the monitoring network. The map below provides information for each monitoring site in the network. Clicking on a specific site will take you to a new window where you can access current day and five-day hourly AQI. AQI: Unhealthy for Sensitive Groups (1- 150) Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.

Learn more about particle sizes, quality of classes, and more. The higher the rating, the greater the danger. Based on NAAQS dropdown selection above, a synchronized set of charts ( air quality concentration chart , emissions stacked area chart and USA map of monitor locations) display. 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.

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. View current and historical air quality and weather information collected from the Air District’s air monitoring network. 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.

Get real-time, historical and forecast PM2. Read the air pollution in Bangkok, Thailand with AirVisual. 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.