Try the free web app at:
http://air.funkymic.com
The major benefit of this paid application is that you will receive a notification on your notification center when the air becomes unhealthy.
Note: Only Beijing, Chengdu, Guangzhou, Shanghai and Shenyang are supported.
Features
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* Send local notifications when air quality reaches a pre-configured pollution level
* Use minimal screen estate
Credit
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Data is measured and shared by the US embassies:
- Beijing: https://twitter.com/BeijingAir
- Chengdu: https://twitter.com/CGChengduAir
- Guangzhou: https://twitter.com/Guangzhou_Air
- Shanghai: https://twitter.com/CGShanghaiAir
- Shenyang: https://twitter.com/Shenyang_Air
