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An air quality advisory has been issued for Thursday in the Salem and Portland-Vancouver metro areas due to elevated levels of ozone pollution or smog, according to The Oregon Department of ...
A red flag warning was extended until Friday evening as new fires ignited and existing fires spread across Oregon. Oregon wildfires: Air quality declines statewide, red flag warning extended amid ...
Jul. 9—With two wildfires in Southern Oregon that have burned more than 20,000 combined acres, the Oregon Department of Environmental Quality has issued an air quality advisory for Klamath and ...
Since 1999, the EPA has used the air quality index (AQI) to communicate air pollution risk to the public, on a scale from 0 to 500, with six levels from Good to Hazardous. [10] (The previous version was the Pollutant Standards Index (PSI), which did not incorporate PM2.5 and ozone standards.)
The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively). [1 ...
Farther west, La Pine, recently registered an Air Quality Index of 233, breaking into the "very unhealthy" category, according to state air quality officials. On Monday, the Oregon Department of ...
Air pollution can affect nearly every organ and system of the body, negatively affecting nature and humans alike. Air pollution is a particularly big problem in emerging and developing countries, where global environmental standards often cannot be met. The data in this list refers only to outdoor air quality and not indoor air quality, which ...
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