On Aug 20 2008

Air quality in is Good, index II (index max: V).
In , same air would be considered as Mediocre, index 6 (index max :10).
Beijing's most polluted day so far this year...
Tuesday, 11 March 2008, Written by Trouni   

Even though Beijing's "Blue Sky" days are still quite polluted, I'm pretty sure most Beijingers like me enjoyed the city's sunny and pleasant weather from the past last weeks.

However, even though weather forecast said yesterday (March 10) was a bright sunny day, unwelcome smog made it tougher to enjoy a bright blue sky in the city. As a matter of fact, yesterday, Beijing had an API of 238 (grade IV), which grants that day to be the most polluted day so far in 2008.

 

Beijing's daily API since January 1, 2008 
Beijing's daily API since January 1, 2008
 

It is also interesting to focus on the API reported by the different monitoring stations. You probably remember that some downtown stations were powered off, being replaced by new ones in the countryside. Therefore, whereas Badaling's new monitoring station reported an API of 78 (grade II), the lucky Beijingers living in Chaoyang enjoyed an API rising up to 339 (grade V).

An API of 339 corresponds to a PM10 concentration of 451µg/m3, exceeding more than nine times the WHO air quality guidelines on PM10 (50µg/m3 for 24hr mean).

 

Comments
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melanie gao wrote :
I thought about you when I looked at the sky that day. It was awful. Do you know if there was a sandstorm and if that had anything to do with the air quality?
Reply
2008-03-13 07:18:26
Trouni wrote :
Hi Melanie, I don't have any reliable information yet about whether there was a sandstorm or not last monday. But considering the low wind in the morning, I think that there is only little chance a sandstorm hit Beijing on that day.
Reply
2008-03-14 16:57:16
james arsnall wrote :
i am going to china next month do i have to worry if i will have cancer
Reply
2008-03-16 20:06:45
Julien wrote : Risk of cancer
Hi James, it is proven that being exposed to high levels of pollution increases the risk of cancer, just like smoking.
The more time you stay in polluted areas (like China) the more life expectancy you lose. I recommend you to read the very interesting report from World Health Organisation on the impact of fine particles on health (fine particles are the main pollutant in Beijing) (Report in its context).
However, if you just plan to stay a short period of time, the impact on your health should be limited!
Reply
2008-03-23 14:42:02
Mr Mauve wrote : shenyang
Oh my god, if you really know how much I was crying when I arrived in Shenyang in 2002, when you cannot see the blue sky, you fell depressed, and homesick. It is true that when you live in south of france with flowers and blue sky and no acide rain...
The people there are very courageous, they never complaim about the weather, they just find it normal....
Reply
2008-04-16 04:37:20
someone wrote : reply
Don't worry, your not alone, i too did that when i went in 2003. And you have no idea how i felt!
Reply
2008-08-02 14:09:06
Yang wrote : Dalian
I came to Dalian for work about a month ago. I can't believe how much polluted this city is!
Reply
2008-04-16 19:31:07
someone wrote : pollution
how come china is so polluted?
what are the reasons?
Why aren't you doing anything to stop it?
Or don't you care about your country?
Reply
2008-08-02 14:06:37
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