Air quality index of major cities in North America December 19: Vancouver 'good'

Below is information on the current background air quality in some of North America's major cities based on data taken from http://www.airnow.gov recorded at 1:20 pm GMT December 19. 

City Quality
Atlanta (Georgia)  [Moderate]
Chicago (Illinois)  [Moderate]
Dallas (Texas) [Moderate]
Denver (Colorado) [Good]
New Orleans (Louisiana)  [Good]
New York City (New York) [Good]
Miami (Florida) [Good]
San Francisco (California) [Good]
Washington DC (District of Columbia) [Good]
Montreal (Quebec)   [Good]
Toronto (Ontario) [Good]
Vancouver (British Columbia)  [Good]

Legend

Air Quality
Good  
Moderate 
Unhealthy for sensitive groups [UHSG]
Unhealthy 
Very unhealthy 
Hazardous 
N/A  N/A

Data: 

The above data was collected at 1:20pm GMT on Wednesday, December 19, 2012 from http://www.airnow.gov, an interactive website developed by the US EPA, NOAA, NPS, tribal, state and local agencies to provide public information on national air quality.

The data used is collected using either federal reference or equivalent monitoring techniques or techniques approved by the state, local or tribal monitoring agencies and is displayed on a hourly basis and as such is not fully verified and is therefore only for the purposes of reporting the Air Quality Index.

The indices have six levels from ‘Good' through to ‘Hazardous' based upon five major pollutants regulated by the Clean Air Act -- ground-level ozone, particulate pollution, carbon monoxide, sulfur dioxide and nitrogen dioxide and the potential health risk posed by these pollutants.

For more information on the index calculation and the health risks posed by pollutants see: http://www.epa.gov/airnow/aqi_brochure_08-09.pdf

Loading...

Editor’s note:Yahoo Philippines encourages responsible comments that add dimension to the discussion. No bashing or hate speech, please. You can express your opinion without slamming others or making derogatory remarks.

  • Beyonce's unretouched L'Oreal photos only latest in her long history of Photoshop controvers …

    Beyonce's unretouched L'Oreal photos only latest in her long history of Photoshop controvers …

    Celebrity News - Fri, Feb 20, 2015 1:47 AM PHT
    Beyonce's unretouched L'Oreal photos only latest in her long history of Photoshop controvers …

    Beyonce’s #Flawless image is embroiled in controversy once again. On Wednesday, a web site called The Beyonce World leaked 224 allegedly raw photos of the musician. The images showed Bey in full makeup for the 2013 L’Oreal ad campaign — but with the kinds of “imperfections” we all have — beauty marks, bumps, creases. In the wake of Cindy Crawford’s unretouched photos, the images have been praised by critics of a beauty industry that sets impossibly high standards, standards that Queen Bey …

  • Taylor Swift reveals ‘Style’ video

    Taylor Swift reveals ‘Style’ video

    omg - Sat, Feb 14, 2015 12:14 AM PHT
    Taylor Swift reveals ‘Style’ video

    The 25-year-old released the video for her third cut from platinum selling album 1989. …

  • My mother-in-law’s personal encounter with the pope

    My mother-in-law’s personal encounter with the pope

    Write Away - Wed, Jan 28, 2015 2:29 PM PHT
    My mother-in-law’s personal encounter with the pope

    For my mother-in-law Mrs. Elsa Yrastorza Yuzon, flying and soaring in the skies is part of her normal routine. But it reached new heights when Pope Francis boarded Shepherd One. …