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  2. Air pollution measurement - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_measurement

    Unlike low-cost monitors, which are carried from place to place, static monitors continuously sample and measure the air quality in a particular, urban location. Public places such as busy railroad stations sometimes have active air quality monitors permanently fixed alongside platforms to measure levels of nitrogen dioxide and other pollutants ...

  3. Ozone monitor - Wikipedia

    en.wikipedia.org/wiki/Ozone_monitor

    An ozone monitor of this type operates by pulling an air sample from the atmosphere into the machine with an air pump. [3] During one cycle, the ozone monitor will take one air sample through the air inlet, and scrub the ozone from the air; for the next cycle, an air sample bypasses the scrubber and the ozone value calculated. The solenoid ...

  4. Tropospheric Emissions: Monitoring of Pollution - Wikipedia

    en.wikipedia.org/wiki/Tropospheric_Emissions:...

    Tropospheric Emissions: Monitoring of Pollution (TEMPO) is a space-based spectrometer designed to measure air pollution across greater North America at a high resolution and on an hourly basis. [ 4 ] [ 5 ] The ultraviolet–visible spectrometer will provide hourly data on ozone, nitrogen dioxide, and formaldehyde in the atmosphere.

  5. New air quality sensors arrive in Spokane, part of state ...

    www.aol.com/air-quality-sensors-arrive-spokane...

    The Washington Department of Ecology is in the process of installing 11 new air quality sensors in Spokane and Spokane Valley that are designed to monitor fine particle pollution in the air, as ...

  6. National Ambient Air Quality Standards - Wikipedia

    en.wikipedia.org/wiki/National_Ambient_Air...

    Ground level ozone (O 3): Ozone found on the surface-level, also known as tropospheric ozone is also regulated by the NAAQS under the Clean Air Act. Ozone was originally found to be damaging to grapes in the 1950s. The US EPA set "oxidants" standards in 1971, which included ozone.

  7. Ground-level ozone to create unhealthy air quality Thursday ...

    www.aol.com/ground-level-ozone-create-unhealthy...

    Science & Tech. Shopping. Sports

  8. Air Quality Index, explained: What it means when Spokane's ...

    www.aol.com/news/air-quality-index-explained...

    Aug. 4—By late Tuesday morning, the quality of Spokane's air sat in the unhealthy range of the U.S. Air Quality Index due to wildfires across the Northwest. The 184 rating was consistent with ...

  9. NowCast (air quality index) - Wikipedia

    en.wikipedia.org/wiki/NowCast_(air_quality_index)

    PM 2.5 AQI of US monitors, calculated utilizing NowCast, courtesy US EPA PM2.5 AQI map, calculated utilizing NowCast, courtesy US EPA. The PM (particulate matter) NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 - particles less than 10 micrometers ...