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Shanghai air quality and China in general.
Aleks says "i dont think any city has air pollution that bad."
That's because you have never been to China. I have spent allot of time in Shanghai during the summer and they don't get fog there in the summer like in San Francisco or Los Angeles (marine layer). The times I've been in Shanghai during the fall and winter will bring some fog when cold which it can get, as I have seen it snow in Shanghai on a few occasions.
If fact, there have been many days in Beijing, Xian and Shanghai that make the worst days in San Fernando Valley look like Montana. I have seen the air so bad in Xian and Beijing where the street lights come on in the day time, like London in the days of old.
In Shanghai, there is a large coal fire power plant north of the Bund and numerous steel mills and ship yards along the Huangpu river. Also, the ship traffic along the river produces large volumes of air pollution since the marine traffic burns a very low grade of crude oil.
Every time I fly to mainland China, I can see the air quality start to diminish in quality from over 400 miles away. Also, if you fly between Taiwan and Japan will notice that the air over the Pacific Ocean from over 300 miles away is frequently mired with smog drifting from mainland China.
As for the population, the metro area of Shanghai is very small relative to the urban sprawl in the USA and account for nearly 20 million people. But, given an area around the Chang Jiang (Yantze) delta equal to metro Los Angeles, going from Oxnard to Redlands down to Camp Pendleton, a comparable area in China would have Metro Shanghai reaching out to Nanjing and down to Hangzhou. Using that area as a reference would mean accounting for nearly 80 million people. Breaking down as follows.
City_________Metro Pop._____Date_____Source
Changshu______1,047,700_____2005_____www.wikipedia.org/wiki/Changshu
Changzhou_____4,452,000_____2009_____www.wikipedia.org/wiki/Changzhou
Guangde_________510,000_____unkn_____www.wikipedia.org/wiki/Guangde_County
Hangzhou______8,100,000_____2009_____www.wikipedia.org/wiki/Hangzhou
Huzhou________2,625,600_____unkn_____www.travelchinaguide.com/cityguides/zhejiang/huzhou/
Maanshan________300,000_____unkn_____www.planetware.com/china/maanshan-chn-ah-m.htm
Nanjing_______7,713,100_____2009_____www.wikipedia.org/wiki/Nanjing
Nantong_______7,737,900_____2008_____www.wikipedia.org/wiki/Nantong
Shanghai_____19,210,000_____2009_____www.wikipedia.org/wiki/Shanghai
Suzhou________6,332,900_____2009_____www.wikipedia.org/wiki/Suzhou
Wuhu__________2,268,800_____2010_____www.travelchinaguide.com/cityguides/anhui/wuhu/
Wuxi__________4,471,900_____unkn_____www.wikipedia.org/wiki/Wuxi
Xuancheng_______450,000_____2010_____www.travelchinaguide.com/cityguides/anhui/xuancheng/
Yangzhou______4,592,500_____2007_____www.wikipedia.org/wiki/Yangzhou
Zhenjiang_____2,672,100_____2008_____www.wikipedia.org/wiki/Zhenjiang
Total Pop.___72,484,500 for an area the size of Los Angeles around Metro Shanghai
Aleks says "the post above you just said it was fog. please read posts"
It's not good to be so arrogant and having that based from ignorance.
Last edited by seadragon; Jul 9, 2010 at 1:15 AM.
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