What are the sources of these pollutants?

The Air Quality Index (AQI) is a nationwide, standard method developed by the U.S. Environmental Protection Agency (EPA) for reporting daily air quality to the ... The Daily Air Quality Update is based on the Air Quality Index (AQI), which is the EPA's tool for reporting air quality. The AQI tells you how clean or polluted ... "Good" (0 - 50) Air quality is excellent and poses little or no risk. · "Moderate" (51 - 100) · "Unhealthy for Sensitive Groups" (101 - 150) · "Unhealthy" (151 ... Aug 8, 2023 ... The AQI in Lane county is calculated for two major pollutants regulated by the Clean Air Act: ground-level ozone and particulate matter (PM2.5). Sep 22, 2021 ... An AQI above 100 is considered unhealthy for certain sensitive groups. As AQI increases, air quality becomes unhealthy for the general public. The New York State AQI is an index for reporting daily air quality in the eight Air Quality Regions within the state. The daily AQI tells you how clean or ... The Air Quality Index ... The Air Quality Index, known as the AQI, is an index for reporting daily air quality. It tells you how clean or polluted your air is, ... Apr 17, 2025 ... Check out this link regarding the current air quality conditions in Rapid City. Click to see the current Air Quality Index. This map shows fine particle pollution from wildfires and other sources. It does not show air toxics or other pollutants. For ozone, go to AirNow. This standardized system to provide the public with timely and easy-to-understand information on local air quality and whether air pollution levels pose a ...