About the World Air Quality Index project
aqicn.org - waqi.info

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 250,000 air quality monitoring stations in 2,000 major cities, via those two websites: aqicn.org and waqi.info.

The founding team 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 China, Singapore, India, Australia, USA.

The project has a social intent. Yet, despite its extensive outreach, it has never received any public funding. Our income, essentially from online advertising as well as our GAIA air quality monitoring stations, is used to cover the cloud infrastructure and hosting cost.

The project is constantly looking for support from more contributors.

It has now received active contributions from more than 16217 citizens from 138 countries

made in 北京

Contattando il team dell'Indice Mondiale della Qualità dell'Aria

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

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).


Credits

All the credits must go to the US Embassies in China for initially providing and publishing their PM2.5 air quality measurement, to the China MEP for the huge effort in providing PM2.5 for so many cities, and all the worldwide Environment Protection Agencies for their excellent work on monitoring and providing Air Quality information .

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


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We are looking for help to translate this website. More information, please check the translation page.


Common question & answers

  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 article 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 specially optimized and affordable monitoring stations costing as low as $200. Please check the GAIA 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 page for the full explanation: aqicn.org/publishingdata/it/
  5. Data quality & real-time validation : The data published on World Air Quality Index is real-time and therefore un-validated 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 data platform page.
  7. API (Application Programming interface) : The World Air Quality Index project is offering a free API for maps, tiles and programmatic JSON access. Check the API 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 contribute page for more info.
  9. Funding : The World Air Quality Index project is independent from any government and any "profit" corporation. It has so far not received any funding from any public nor private entity. The limited income from online ads is used to cover infrastructure cost.
  10. Why choosing the U.S. EPA index to harmonize the data? This is mostly for historical 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 25,000 stations worldwide ~ that’s around 2,000 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 media kit page.
Any other question, please check the Frequently Asked Question: aqicn.org/faq/it/.

made in 北京


Classifiche della qualità dell'aria per paese

Informazioni sulla misurazione della qualità dell'aria e dell'inquinamento:

Informazioni sui livelli di qualità dell'aria

- Valori dell'indice di qualità dell'aria (AQI).Livelli di preoccupazione per la salute
0 - 50 Buona La qualità dell'aria è considerata soddisfacente e l'inquinamento atmosferico presenta rischi minimi o nulli
51 -100 Moderato La qualità dell'aria è accettabile; tuttavia, per alcuni inquinanti può esserci un problema di salute moderato per un numero molto limitato di persone che sono insolitamente sensibili all'inquinamento atmosferico.
101-150 Malsano per gruppi sensibili I residenti appartenenti a gruppi sensibili (per patologie) possono avere effetti sulla salute. È improbabile che gli effetti siano seri per tutta la popolazione.
151-200 malsano Ognuno può iniziare a sperimentare effetti sulla salute; i membri di gruppi sensibili possono avere effetti sulla salute più gravi
201-300 Molto malsano Avvisi sulla salute delle condizioni di emergenza. È più probabile che l'intera popolazione sia colpita.
300+ Pericoloso Allerta salute: chiunque può essere soggetto a effetti piu gravi sulla propria salute

Per saperne di più sulla qualità dell'aria e sull'inquinamento, consulta l' argomento Qualità dell'aria di Wikipedia o la guida Airnow sulla qualità dell'aria e la tua salute .

Per consigli sanitari molto utili del dottor Richard Saint Cyr MD di Pechino, controlla il blog www.myhealthbeijing.com .


Avviso di utilizzo: Tutti i dati relativi alla qualità dell'aria non sono validati al momento della pubblicazione e, a causa dell'assicurazione della qualità, questi dati possono essere modificati, senza preavviso, in qualsiasi momento. Il World Air Quality Index progetto ha esercitato tutte le ragionevoli capacità e attenzione nella compilazione del contenuto di queste informazioni e in nessun caso il World Air Quality Index team di progetto o i suoi agenti sono responsabili in contratto, illecito o altro per qualsiasi perdita, danno o danno derivante direttamente o indirettamente dalla fornitura di questi dati.



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