Index of air quality in the world's major cities: February 25

Daily air quality index of some of the world's major cities on February 25, using data from AirNow, CITEAIR, and the American Embassy in Beijing.



City

  Average 24/02/2011                                                        Average 25 /02/2011                                                            

London (UK)

Madrid (Spain) NA

Paris (France)

Brussels (Belgium)  

Berlin (Germany )

Prague (Czech Republic)

Zurich (Switzerland)

Beijing (China)
Beijing US embassy stats

Shanghai (China)  

Hong Kong (China)

Brunei (Brunei)
Seoul (South Korea) NA

New York (USA)  

San Francisco (USA)

NA

Mexico City (Mexico )

Montreal (Canada)

Toronto (Canada)

New Delhi (India)
Sydney (Australia)



The Air Quality Index (AQI) or Air Pollution Index (API) measures the parts of pollutant in a specified volume of air. The lower the AQI the fewer particles of pollution are in the air. For a more detailed explanation see http://www.airnow.gov/index.cfm?action=aqibasics.aqi.

All results are color-coded following the American AQI standard shown below. For all countries outside of Europe, the US and Canada, that region's definition of AQI terms has been accepted.

Legend 

Air Quality

 

Good

 

Moderate

 

Unhealthy for sensitive groups

 

Unhealthy

 

Very Unhealthy

 

Hazardous

 

Data: Data relating to Europe, the US and Canada is taken from CITEAIR - Common Information to European Air ( http://www.airnow.gov / http://www.airqualitynow.eu); data concerning China is taken from both official Chinese government sources and the US Embassy's automated air index Twitter account. For all countries the data displayed falls within either that country's definition of the level of air quality or the international AQI index. Data for all European, US and Canadian cities refers to background, not roadside, levels of air quality.

All data was collected at 8:00am GMT on February 25.
http://www.airqualitynow.eu
http://www.airnow.gov

 

Have you tried new the Independent Digital Edition apps?
Travel
ebookHow to enjoy the perfect short break in 20 great cities
Independent Travel Videos
Independent Travel Videos
Simon Calder in Amsterdam
Independent Travel Videos
Simon Calder in Giverny
Independent Travel Videos
Simon Calder in St John's
Independent Travel Videos
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

ES Rentals

    iJobs Job Widget
    iJobs Travel

    Recruitment Genius: Membership Sales Advisor - OTE £20,000 Uncapped

    £15000 - £20000 per annum: Recruitment Genius: The fastest growing fitness cha...

    Guru Careers: Marketing Manager / Marketing Communications Manager

    £35-40k (DOE) + Benefits: Guru Careers: We are seeking a Marketing Communicati...

    Guru Careers: Membership Administrator

    £23K: Guru Careers: We're seeking an experienced Membership Administrator, to ...

    Guru Careers: Dining Room Head Chef

    £32K: Guru Careers: We are seeking a Dining Room Head Chef to work for one of ...

    Day In a Page

    Why the cost of parenting has become so expensive

    Why the cost of parenting has become so expensive

    Today's pre-school child costs £35,000, according to Aviva. And that's but the tip of an iceberg, says DJ Taylor
    Fifa corruption: The 161-page dossier that exposes the organisation's dark heart

    The 161-page dossier that exposes Fifa's dark heart

    How did a group of corrupt officials turn football’s governing body into what was, in essence, a criminal enterprise? Chris Green and David Connett reveal all
    Mediterranean migrant crisis: 'If Europe thinks bombing boats will stop smuggling, it will not. We will defend ourselves,' says Tripoli PM

    Exclusive interview with Tripoli PM Khalifa al-Ghweil

    'If Europe thinks bombing boats will stop smuggling, it will not. We will defend ourselves'
    Raymond Chandler's Los Angeles: How the author foretold the Californian water crisis

    Raymond Chandler's Los Angeles

    How the author foretold the Californian water crisis
    Chinese artist who posted funny image of President Xi Jinping facing five years in prison as authorities crackdown on dissent in the arts

    Art attack

    Chinese artist who posted funny image of President Xi Jinping facing five years in prison
    Marc Jacobs is putting Cher in the limelight as the face of his latest campaign

    Cher is the new face of Marc Jacobs

    Alexander Fury explains why designers are turning to august stars to front their lines
    Parents of six-year-old who beat leukaemia plan to climb Ben Nevis for cancer charity

    'I'm climbing Ben Nevis for my daughter'

    Karen Attwood's young daughter Yasmin beat cancer. Now her family is about to take on a new challenge - scaling Ben Nevis to help other children
    10 best wedding gift ideas

    It's that time of year again... 10 best wedding gift ideas

    Forget that fancy toaster, we've gone off-list to find memorable gifts that will last a lifetime
    Paul Scholes column: With the Premier League over for another year, here are my end of season awards

    Paul Scholes column

    With the Premier League over for another year, here are my end of season awards
    Heysel disaster 30th anniversary: Liverpool have seen too much tragedy to forget fateful day in Belgium

    Liverpool have seen too much tragedy to forget Heysel

    Thirty years ago, 39 fans waiting to watch a European Cup final died as a result of a fatal cocktail of circumstances. Ian Herbert looks at how a club dealt with this tragedy
    Amir Khan vs Chris Algieri: Khan’s audition for Floyd Mayweather may turn into a no-win situation, says Frank Warren

    Khan’s audition for Mayweather may turn into a no-win situation

    The Bolton fighter could be damned if he dazzles and damned if he doesn’t against Algieri, the man last seen being decked six times by Pacquiao, says Frank Warren
    Blundering Tony Blair quits as Middle East peace envoy – only Israel will miss him

    Blundering Blair quits as Middle East peace envoy – only Israel will miss him

    For Arabs – and for Britons who lost their loved ones in his shambolic war in Iraq – his appointment was an insult, says Robert Fisk
    Fifa corruption arrests: All hail the Feds for riding to football's rescue

    Fifa corruption arrests

    All hail the Feds for riding to football's rescue, says Ian Herbert
    Isis in Syria: The Kurdish enclave still resisting the tyranny of President Assad and militant fighters

    The Kurdish enclave still resisting the tyranny of Assad and Isis

    In Syrian Kurdish cantons along the Turkish border, the progressive aims of the 2011 uprising are being enacted despite the war. Patrick Cockburn returns to Amuda
    How I survived Cambodia's Killing Fields: Acclaimed surgeon SreyRam Kuy celebrates her mother's determination to escape the US

    How I survived Cambodia's Killing Fields

    Acclaimed surgeon SreyRam Kuy celebrates her mother's determination to escape to the US