kontaktieren sie das world air quality team-利来app

kontaktieren sie das world air quality team-利来app

the world air quality index project is a non-profit project started in 2007. its mission is to promote air pollution awareness for citizens and provide a unified and world-wide air quality information.

the project is providing transparent air quality information for more than 130 countries, covering more than 30,000 stations in 2000 major cities, via those two websites: and .
the founding team, located in beijing china, is composed of several contributors in the domain environmental sciences, system engineering, data science, as well as visual design. the team has been expanding worldwide, with new key supporters from singapore, india, australia, usa.

the project, despite its social intent and expensive outreach, has never received any public funding. the limited income, essentially from online ads, is used to cover the infrastructure and hardware cost. engineering work is contributed.

the project is constantly looking for support from more contributors. it has now received active contributions from more than 15781 citizens from 137 countries:

made in 北京

if you would like to send us a message, please try to use one of the following dedicated contact channels:

measuring the air quality in your city
historical & real-time data & api
contribute to the project
if none of the above channels match your need, click here to send us a message (but, please, keep in mind that due to our limited team capacity we can not guarantee replying to all messages).

aller dank gebührt der us-botschaft in china für die erstmalige bereitstellung und veröffentlichung der daten ihrer pm2.5 luft-qualitätsmessung, dem chinesischen umweltministerium für den großen einsatz bei der bereitstellung von pm2.5-daten für so viele städte und allen umweltschutzbehörden weltweit für ihre ausgezeichnete arbeit bei der erhebung und verbreitung der luftqualitätsdaten.

all this work is made possible thanks to the excellent work for the (below list not exhaustive):


we are looking for help to translate this website. more information, please check the page.

  1. air quality data sources: all the air quality data seen on world air quality index are the official data from each country respective environmental protection agency (epa). data from each epas is measured using professional monitoring equipment. the full epa source list used in world air quality index is available from sources page.
  2. seeing different readings from other websites: this is most likely normal, and due to the fact that different websites use different aqi scales present the data. at world air quality index, we are using the us epa scale, while other website might use different scales. check this for more information.
  3. i want to monitor the air quality in my area: as high-end professional stations can be really expensive (more than $10k per stations), the world air quality index project / earth sensing labs has designed specialy optimized and affordable monitoring stations costing as low as $200. please check the air quality monitoring station product page.
  4. i want to add a new station on the map: provided your monitoring station is qualified (for instance if it is using bam, toem or gaia technology), then adding a new station on the map is not only simple and straightforward but also completely free. please refer to this for the full explanation
  5. data quality & real-time validation: the data published on world air quality index is real-time and therefore unvalidated at the time of publication. in order to strengthen the quality, a set of real-time ai algorithms are used to detect abnormal data conditions (sparks, low reporting, etc.) and automatically 'disable' data reported from defective stations.
  6. historical data access: we are currently investigating with several international institutions (who, un, geo) the possibility to setup a framework for accessing the historical air quality data. if you are from an international institution, organization or university and want to join this effort, then check our page.
  7. api (application programing interface): the world air quality index project is offering a free api for maps, tiles and programatic json access. check the page for more information.
  8. contributing to the world air quality index project: the project is always looking for more hands to support the activities: for instance, to write articles, to improve our applications, to create new data visualization, to improve the air quality forecast or to translate the website and app to news languages. check the page for more info.
  9. fundings: the world air quality index project is independent from any governement and any "profit" corporation. it has so far not received any fundings from any public nor private entity. the limited income from online ads is used to cover infrastructure cost.
  10. why chosing the u.s. epa index to harmonize the data? this is mostly for historcal reason: when we started in 2007, there was not so many alternative, and the us epa was actually quite proactive at promoting the idea of clean air, so the choice was natural. some alternatives, such as the european “common air quality index” could also have been a good option, but the eea failed to promote their standard. this won't be a problem for long anyways, since we are now working on a improvement which will allow users to select any scale they want among a list of more than 80 scales!
  11. how many cities do you currently provide air quality data for and is the info available on your app in each of them? we are providing the data for 9000 stations worldwide ~ that’s around 600 major cities in 70 countries. the info is available in the app for each of them, but not all of the cities have the “full” set of pollutant monitoring (e.g. pm2.5, pm10, ozone, no2, so2, co). for example, some only have pm10 or a composite aqi. we are also continuously increasing the coverage, targeting to get 10 to 20% more stations every year. the full list of cities and stations is available from this page.
  12. media kit? our public media kit is available from the page.
any other question, please check the frequently asked question page.

made in 北京

über die luftqualitätsstufen

- luftqualitätswerte (aqi)stufen zur bewertung der gesundheitsgefährdung
0 - 50 gut die qualität der luft ist zufriedenstellend. die luftverschmutzung stellt ein geringes oder kein risiko dar.
51 -100 mäßig die luftqualität ist insgesamt akzeptabel. bei manchen schadstoffen bestehen jedoch für einen sehr kleinen personenkreis, der außergewöhnlich empfindlich auf luftverschmutzung reagiert, eventuell gesundheitsbedenken.
101-150 ungesund für empfindliche personengruppen bei empfindlichen personengruppen können gesundheitliche auswirkungen auftreten. die allgemeine öffentlichkeit ist höchstwahrscheinlich nicht betroffen.
151-200 ungesund erste gesundheitliche auswirkungen können sich bei allen personengruppen einstellen. bei empfindlichen personengruppen können ernstere gesundheitliche auswirkungen auftreten.
201-300 sehr ungesund gesundheitswarnung aufgrund einer notfallsituation. die gesamte bevölkerung ist voraussichtlich betroffen.
300 gesundheitsgefährdend gesundheitsalarm: jeder könnte ernstere auswirkungen auf die gesundheit verspüren

um mehr über luftqualität und -verschmutzung zu erfahren, gehen sie auf die seite oder den für luftqualität und ihre gesundheit der us-amerikanischen umweltagentur.

sehr nützliche gesundheitsratschläge gibt der pekinger arzt richard saint cyr md, in seinem blog.

nutzungshinweis: alle luftqualitätsdaten sind zum zeitpunkt der veröffentlichung noch nicht verifiziert, und aufgrund der qualitätssicherung können diese daten jederzeit ohne vorherige ankündigung geändert werden. das projekt hat alle angemessenen fähigkeiten und sorgfalt bei der zusammenstellung der inhalte dieser informationen angewandt und unter keinen umständen, vertraglich oder anderweitig haftet das projektteam oder seine agenten wegen unerlaubter handlung oder anderweitig für verluste, verletzungen oder schäden, die direkt oder indirekt aus der bereitstellung dieser daten entstehen.



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