Index of air quality in the world's major cities: February 3

Daily air quality index of some of the world's major cities on February 3, using data from AirNow, CITEAIR, and the American Embassy in Beijing.



City

Average 02/02/2011                                                                  Average 03/02/2011                                                          

London (UK)

Madrid (Spain) NA

Paris (France)

Brussels (Belgium)  

Berlin (Germany )

Prague (Czech Republic)

NA

Zurich (Switzerland)

Beijing (China) NA NA

Beijing - US embassy stats

Shanghai (China)  

NA NA

Hong Kong (China)

Brunei (Brunei) NA
Seoul (South Korea) NA

New York (USA)  

San Francisco (USA)

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 8:30am GMT on February 3.
http://www.airqualitynow.eu
http://www.airnow.gov

 

Sport
Louis van Gaal and Arsene Wenger
footballLIVE: All the latest from today's Premier League matches
News
newsNew images splice vintage WWII photos with modern-day setting
Arts and Entertainment
The star dances on a balcony in the video
music
Arts and Entertainment
Jerry Hall (Hand out press photograph provided by jackstanley@theambassadors.com)
theatre
PROMOTED VIDEO
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: Customer Service Advisor

    £8 per hour: Recruitment Genius: Excellent opportunities are available for par...

    Investigo: IT Auditor

    £60000 - £75000 per annum + Benefits : Investigo: A global leading travel busi...

    Recruitment Genius: Chef De Partie x 2

    £16000 - £20000 per annum: Recruitment Genius: This charming and contemporary ...

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

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

    Day In a Page

    US immigration: President Obama ready to press ahead with long-promised plan to overhaul 'broken system' - but will it get past a Republican-controlled Congress?

    Immigration: Obama's final frontier

    The President is ready to press ahead with the long-promised plan to overhaul America's 'broken system' - but will it get past a Republican-controlled Congress?
    Bill Cosby rape allegations explained: Why are these allegations coming out now? Why didn’t these women come forward earlier? And why has nobody taken legal action?

    Bill Cosby rape allegations explained

    Why are these allegations coming out now? Why has nobody taken legal action? And what happens next for the man once thought of as 'America's Dad'
    Four years of excruciating seizures caused by the 1cm tapeworm found burrowing through a man's brain

    You know that headache you’ve got?

    Four years of excruciating seizures caused by the 1cm tapeworm found burrowing through a man's brain
    Travelling to work by scooter is faster than walking and less sweaty than cycling, so why aren’t we all doing it?

    Scoot commute

    Travelling to work by scooter is faster than walking and less sweaty than cycling, so why aren’t we all doing it?
    Paul Robeson: The story of how an American icon was driven to death to be told in film

    The Paul Robeson story

    How an American icon was driven to death to be told in film
    10 best satellite navigation systems

    Never get lost again: 10 best satellite navigation systems

    Keep your vehicle going in the right direction with a clever device
    Paul Scholes column: England must learn to keep possession and dictate games before they are exposed by the likes of Germany and Brazil

    Paul Scholes column

    England must learn to keep possession and dictate games before they are exposed by the likes of Germany and Brazil
    Michael Dawson: I’ll thank Spurs after we win says defender as he prepares to return with Hull

    Michael Dawson: I’ll thank Spurs after we win

    Hull defender faces his struggling former club on Sunday ready to show what they are missing. But he says he will always be grateful to Tottenham
    Frank Warren column: Dr Wu has big plans for the professionals yet he should stick to the amateur game

    Frank Warren column

    Dr Wu has big plans for the professionals yet he should stick to the amateur game
    Synagogue attack: Fear unites both sides of Jerusalem as minister warns restoring quiet could take 'months'

    Terror unites Jerusalem after synagogue attack

    Rising violence and increased police patrols have left residents of all faiths looking over their shoulders
    Medecins sans Frontieres: The Ebola crisis has them in the headlines, but their work goes far beyond West Africa

    'How do you carry on? You have to...'

    The Ebola crisis has Medecins sans Frontieres in the headlines, but their work goes far beyond West Africa
    Isis extends its deadly reach with suicide bombing in Kurdish capital

    Isis extends its deadly reach with suicide bombing in Kurdish capital

    Residents in what was Iraq’s safest city fear an increase in jihadist attacks, reports Patrick Cockburn
    Underwater photography competition winners 2014 - in pictures

    'Mysterious and inviting' shot of diver wins photography competition

    Stunning image of cenote in Mexico takes top prize
    Sir John Major: Negative West End portrayals of politicians put people off voting

    Sir John Major hits out at theatres

    Negative West End portrayals of politicians put people off voting
    Kicking Barbie's butt: How the growth of 3D printing enabled me to make an army of custom-made figurines

    Kicking Barbie's butt

    How the growth of 3D printing enabled toy-designer to make an army of custom-made figurines