| Is Beijing more polluted than Paris? (2) |
| Monday, 11 December 2006, Written by Julien | |||||||||||||||||||||||||
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I spent some time recently looking more precisely on the calculations of the indexes in Beijing, and I thought it could be interesting to compare the target with Paris indexes. The target of Beijing city is to have more than 200 days of "blue sky" a year, which means having an air pollution index lower than II (good). In Paris, the air pollution index goes from 1 to 10, 4 and below being considered as good. For each pollutant, I converted the Beijing index to Paris index... here are the results:
The conclusion is that compared to Paris, the targets of Beijing Municipality are reasonable for NO2 and SO2. Regarding particles, the difference is huge and kind of worrying! And you, what do you think? Comments
juli wrote :
Qu'est ce qui est le plus dangereux pour la santé? pour l'environnement?
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