Index of air quality in the world's major cities: August 24

Daily air quality index of some of the world's major cities on August 24, using data from AirNow, CITEAIR, and the American Embassy in Beijing.



City

  Average 23/08/2011                                                                                          Average 24/08/2011                                                   

London

Madrid NA

Paris 

Brussels 

NA

Berlin 

NA

Prague 

Zurich 

Beijing NA
Beijing US embassy stats NA NA
Shanghai NA

Hong Kong

Brunei 
Seoul NA

New York 

San Francisco

Mexico City 

Montreal

Toronto

New Delhi 
Sydney 



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 7:00 am GMT on August 24.  http://www.airqualitynow.eu
http://www.airnow.gov

 

News
news
New Articles
tvChristmas special reviewed
Arts and Entertainment
Wolf (Nathan McMullen), Ian (Dan Starky), The Doctor (Peter Capaldi), Clara (Jenna Coleman), Santa Claus (Nick Frost) in the Doctor Who Christmas Special (BBC/Photographer: David Venni)
tvOur review of the Doctor Who Christmas Special
News
peopleIt seems you can't silence Katie Hopkins, even on Christmas Day...
PROMOTED VIDEO
Have you tried new the Independent Digital Edition apps?
News
i100
Arts and Entertainment
Jenna Coleman as Clara Oswald in the Doctor Who Christmas special
tvForget the rumours that Clara Oswald would be quitting the Tardis
Arts and Entertainment
Japanese artist Megumi Igarashi showing a small mascot shaped like a vagina
art
Travel
ebookHow to enjoy the perfect short break in 20 great cities
Life and Style
fashion
Arts and Entertainment
Left to right: Stanley Tucci, Sophie Grabol and Christopher Eccleston in ‘Fortitude’
tvSo Sky Atlantic arrived in Iceland to film their new and supposedly snow-bound series 'Fortitude'...
Arts and Entertainment
tv
News
The Queen delivers her Christmas message
newsTwitter reacts to Her Majesty's Christmas Message
Sport
sport
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: Personal Trainer / PT - OTE £30,000 Uncapped

    £25000 - £30000 per annum: Recruitment Genius: The fastest growing fitness cha...

    Investigo: Finance Analyst

    £240 - £275 per day: Investigo: Support the global business through in-depth a...

    Ashdown Group: Data Manager - £Market Rate

    Negotiable: Ashdown Group: Data Manager - MySQL, Shell Scripts, Java, VB Scrip...

    Ashdown Group: Application Support Analyst - Bedfordshire/Cambs border - £32k

    £27000 - £32000 per annum: Ashdown Group: Application Support Analyst - near S...

    Day In a Page

    A Christmas without hope: Fears grow in Gaza that the conflict with Israel will soon reignite

    Christmas without hope

    Gaza fears grow that conflict with Israel will soon reignite
    After 150 years, you can finally visit the grisliest museum in the country

    The 'Black Museum'

    After 150 years, you can finally visit Britain's grisliest museum
    No ho-ho-hos with Nick Frost's badass Santa

    No ho-ho-hos with Nick Frost's badass Santa

    Doctor Who Christmas Special TV review
    Chilly Christmas: Swimmers take festive dip for charity

    Chilly Christmas

    Swimmers dive into freezing British waters for charity
    Veterans' hostel 'overwhelmed by kindness' for festive dinner

    Homeless Veterans appeal

    In 2010, Sgt Gary Jamieson stepped on an IED in Afghanistan and lost his legs and an arm. He reveals what, and who, helped him to make a remarkable recovery
    Isis in Iraq: Yazidi girls killing themselves to escape rape and imprisonment by militants

    'Jilan killed herself in the bathroom. She cut her wrists and hanged herself'

    Yazidi girls killing themselves to escape rape and imprisonment
    Ed Balls interview: 'If I think about the deficit when I'm playing the piano, it all goes wrong'

    Ed Balls interview

    'If I think about the deficit when I'm playing the piano, it all goes wrong'
    He's behind you, dude!

    US stars in UK panto

    From David Hasselhoff to Jerry Hall
    Grace Dent's Christmas Quiz: What are you – a festive curmudgeon or top of the tree?

    Grace Dent's Christmas Quiz

    What are you – a festive curmudgeon or top of the tree?
    Nasa planning to build cloud cities in airships above Venus

    Nasa planning to build cloud cities in airships above Venus

    Planet’s surface is inhospitable to humans but 30 miles above it is almost perfect
    Surrounded by high-rise flats is a little house filled with Lebanon’s history - clocks, rifles, frogmen’s uniforms and colonial helmets

    Clocks, rifles, swords, frogmen’s uniforms

    Surrounded by high-rise flats is a little house filled with Lebanon’s history
    Return to Gaza: Four months on, the wounds left by Israel's bombardment have not yet healed

    Four months after the bombardment, Gaza’s wounds are yet to heal

    Kim Sengupta is reunited with a man whose plight mirrors the suffering of the Palestinian people
    Gastric surgery: Is it really the answer to the UK's obesity epidemic?

    Is gastric surgery really the answer to the UK's obesity epidemic?

    Critics argue that it’s crazy to operate on healthy people just to stop them eating
    Homeless Veterans appeal: Christmas charity auction Part 2 - now LIVE

    Homeless Veterans appeal: Christmas charity auction

    Bid on original art, or trips of a lifetime to Africa or the 'Corrie' set, and help Homeless Veterans
    Pantomime rings the changes to welcome autistic theatre-goers

    Autism-friendly theatre

    Pantomime leads the pack in quest to welcome all