Alternatively, in can you can not access the Chrome store, you can also download the ".crx" plugin file from this link.
In order to install the crx file by, you can follow those 3 steps:
Settings-Icon > Tools > Extensions { the 'three horizontal-bars' icon in the top-right corner }
Drag and drop the "crx" extension file onto the Extensions page from step 1 { .crx file should likely be in your Downloads directory }
In case you can not access the Firefox store, you can also download the ".xpi" add-on
from this link.
In order to install the Sakhteman, Mashhad, Khorasan Razavi Air Quality Widget on your favorite iPhone or iPod device,
just launch the internet browser from your device and open the web page:
"http://ios.aqicn.org/?11586".
Then click on this icon to install the widget as an application
directly accessible from your iPhone homescreen.
Or just scan this QR-code:
You can download the Sakhteman, Mashhad, Khorasan Razavi Air Quality Widget for your favorite Windows Mobile 8 or 8.1,
directly from the Microsoft application store:
In order to install the Sakhteman, Mashhad, Khorasan Razavi Air Quality Widget on your favorite Symbian device,
just download the "Sakhteman, Mashhad, Khorasan RazaviAir.wgz" and install on your phone using Nokia Suite.
In order to install the Sakhteman, Mashhad, Khorasan Razavi Air Quality Widget on your Windows Desktop,
just download the "Sakhteman, Mashhad, Khorasan Razavi.gadget" and let you be guided through the Windows installer.
You can download the Sakhteman, Mashhad, Khorasan Razavi Air Quality Widget on your Android Device directly from
the google app store.
(你可以从Google商店下载此应用).
In case the Android app store can not be accessed, you can also directly download the
signed apk file.
(如果不能访问 Google应用商店,你也可以从我们的网站上直接下载APK文件)
Air quality is considered satisfactory, and air pollution poses little or no risk
None
51 -100
Moderate
Air 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.
101-150
Unhealthy for Sensitive Groups
Members 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.
151-200
Unhealthy
Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects
Active 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
201-300
Very Unhealthy
Health 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+
Hazardous
Health alert: everyone may experience more serious health effects
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.