Epa aqi

EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide. EPA and local offi-cials 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 Quality Index , or AQI. The AQI is an index for reporting daily air quality. AQI AQI Category AQI Value 24-hr Average PM 2. 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). Click on “Calculate” to see the. 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. What does AQI stand for? OZONE AND PARTICLE POLLUTION.

The maps show the higher of the estimated ozone AQI and PM2. Please select a city for detailed current conditions and forecasts. Extremely High Levels of PM2. Steps to Reduce Your Exposure.

AQI does not include recommendations for PM2. Pollution is hazardous at these levels. Everyone should take steps to reduce their exposure when particle pollution levels are in this range. This is only relevant for cities in Asia, like Japan and Taiwan. 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. CFR Appendix G to Part 58. As part of this initiative, U. Mission Thailand is reporting the U. EPA uses an air quality index ( AQI ) summary to give an overall measurement of air quality at each air monitoring site. The lower the index, the better the air quality is. Most of the stations on the map are monitoring both PM 2. EPA definitions of AQI (see page of this document): -The U. EPA has an AQI scale from to 500.

AQI is calculated each day for each monitor for the Criteria Gases and PMand PM2. There are also annual summary AQI files that show by CBSA (metro area) or county the annual statistics for AQI (max, number of values in each category, etc.). It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. An AQI value of 1generally corresponds to the national air quality standard for the pollutant, which is the level the U. AQI values below 1are generally thought of as satisfactory. Think of the AQI as a yardstick that runs from to 500.

Environmental Protection Agency ( EPA ) has set to protect public health. The higher the AQI value, the greater the level of air pollution and the greater the health concern. So, AQI values below 1are generally thought to be satisfactory. When AQI values rise above 10 air quality is considered unhealthy – at first for certain sensitive people, then for everyone as AQI values get higher. EPA uses the AQI for five major pollutant regulated by the Clean Air Act - ground-level ozone, particulate matter, carbon monoxide, sulfur dioxide and nitrogen dioxide.

Department of State (DOS) and the U. Embassies and Consulates around the globe. Embassy Kathmandu recently installed two air quality monitors (AQMs) in Kathmandu: they are located on the Embassy grounds and at the. EPA aims to locate our ambient monitoring stations so they give a good representation of the air quality experienced by the public. As most of the Victorian population lives and works close to roads, most of our stations are in population centres next to roads. Oregon’s index is based on three pollutants regulated by the federal Clean Air Act: ground-level ozone, particle pollution and nitrogen dioxide.

The highest of the AQI values for the individual pollutants becomes the AQI value for that day. For example, if values are for ozone and for nitrogen dioxide,.