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Updated Android application 3.0 now available for download.

Posted on December 28th 2013
Share: aqicn.org/faq/2013-12-28/updated-android-application-30-now-available-for-download/
Our new Android application is now available for download:


This new application contains many new improvements and features:

Visual Improvements:

  • More information provided in the main screen.
  • PM10 and PM2.5 as well as ozone and temperature real-time graphs shown in the main screen.
  • Improved graph rendering for retina and large displays.

Geolocation feature:

  • It is now possibility to automatically search for the closest station to your location (similar to nearest).
  • So you can travel everywhere in the word, and the application will always be able to find the nearest air quality information for you, and for free!

Updated city list:

  • Now covers more than 1000 stations and around 250 cities in mainland China, and more than 3000 stations worldwide.
  • If new cities or stations are added later, the application can automatically search the city you are looking for.

Application vs. widget mode:

  • You can now use the application without the widget.
  • You just need to open the application from the launcher and it will show your favorite city Air Quality information.

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You can download the latest application from the google store.
In case your can not access the Android app store, you can also directly download the signed apk file from our webite.

If you any question or feedback, you can directly post on the disqus board at the bottom of this article.

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O The next app we will release is going to be be the Windows Mobile version, as a growing number of Windows Mobile 8 users asked us for the Windows version. If you have never tried Windows Mobile phone, then have a look at the outstanding Nokia Lumia 1020 with its 41MPix Camera phone, or the even better large 6 inches screen Lumia 1520 (our team's favorite).
Click here to see all the FAQ entries
  • AQI Scale: What do the colors and numbers mean?
  • Using Statistical Distances for Real-time Sensor Networks Validation
  • Nitrogen Dioxyde (NO2) in our atmosphere

    • About the Air Quality and Pollution Measurement:

    About the Air Quality Levels

    AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
    0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
    51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
    101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
    151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
    201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
    300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

    To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

    For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


    Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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