|Anti-pollution measures, 5 days after|
|Friday, 25 July 2008, Written by Julien|
The new anti-pollution measures for Olympics started last Sunday. As you might already know, the main measures are:
As pollution is generated by human activity, if human activity is reduced dramatically, air pollution should rapidly fade off. However, since 3 days the pollution in Beijing is quite visible: a white smog is covering the city.
Smog come from three main factors: car emissions (nitrogen oxides ), volatile organic compounds and sun. Those three factors react with oxygen to produce ozone and particles . Ozone is a risk for athletes as it can aggravate or reveal asthma and reduce lung capacity by up to 20%. It is maybe not a health hazard, but athletes might find it harder to break records.
One of the reasons for such bad air quality is the really light wind and the absence of rain. There has been no occasion for pollutants that were already in the air to be flushed away. Such weather conditions should last for at least 3 more days and we could keep the same kind of pollution a bit longer.
All we have to hope is a heavy rain with strong winds to clear the skies in time for Olympics!
|< Prev||Next >|