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Wildfire season hasn’t wrapped up yet in Oregon, and it’s likely to impact air quality through at least this weekend. Oregon wildfire smoke lingers, impacting air quality in Eugene, Bend as ...
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 ...
Although most of the state was impacted, the Oregon Department of Environmental Quality issued air quality advisories for these counties: Clackamas, Crook, Deschutes, Grant, Harney, Jefferson ...
The most commonly used air quality index in the UK is the Daily Air Quality Index recommended by the Committee on the Medical Effects of Air Pollutants (COMEAP). [39] This index has ten points, which are further grouped into four bands: low, moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general ...
A Department of Environmental Quality report shows air quality has worsened since 2012, with more frequent days categorized as unhealthy or worse.
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 ...
[21] [22] Air quality was officially reduced to an "unhealthy" rating due to smoke and falling ash, [23] [24] forcing many schools to close or cancel outdoor activities. [ 25 ] On Friday, September 15, smoky conditions resumed throughout the Portland Metro area, accompanied by far less falling ash than previously, but downgrading air quality to ...
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 ...