Actions for Count of Days with Air Quality Index from the Air Quality Metrics - Annual Summary Data database shown in Days Date Type: Year; Core-Based Statistical Area (CBSA): Great Falls, MT Sage Data. Sage Publishing Ltd Sage Data [electronic resource]

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Count of Days with Air Quality Index from the Air Quality Metrics - Annual Summary Data database shown in Days Date Type: Year; Core-Based Statistical Area (CBSA): Great Falls, MT Sage Data. Sage Publishing Ltd Sage Data [electronic resource]

Corporate Author
Environmental Protection Agency
Published
Thousand Oaks, CA : Sage Publications, Inc. 2025
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Summary
Reports the number of days during the year the Air Quality Index (AQI) was calculated for the area. This dataset present metrics describing air quality based on values recorded at reporting locations in counties and metropolitan areas of the United States. EPA calculates the Air Quality Index (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. The AQI provides a measure of how clean or polluted the air is in an area: the higher the AQI value, the greater the level of air pollution and the greater the health concern. The data are collected by EPA, state, local, and tribal air pollution control agencies from thousands of monitors and submitted to the EPA's Air Quality System (AQS). The primary purpose of the AQS is to determine the exposure of populations to certain pollutants. Annual values are system-computed summarized values.
Subject(s)
ISBN
9781071842270 Sage Data Foundations
Type of File/Data
Statistical data with bibliographic citation and abstract.
View MARC record | catkey: 47404239