Can New Laws Put an End to China's Pollution Problem?
| # of days when the air quality index was above 500 in Beijing | |
|---|---|
| 2008 | 6 |
| 2012 | 12 |
| 2014 | 1 |
Sources:
nationalmemo.com
| # of days when the air quality index was above 500 in Beijing | |
|---|---|
| 2008 | 6 |
| 2012 | 12 |
| 2014 | 1 |