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Q: Suzhou air quality going down the drain ? Why ?!

So, checkout those curves
http://aqicn.org/city/suzhou/m/
As you can see, there's a cyclic variation. Daytime, pollution level are "normal", "only" 100 for PM2.5 concentration level for instance (which is already *not* *good*) But in the evening, it goes through the roof : 500 for PM2.5 concentration level, 700 for PM10 concentration level (!!!) and 200 for ozone concentration levels. Only in the evening, with a few hours late behind with the daily temperature spike. As you can see, it's the 4th evening like that. When the pollution is at its top, it's awful, it smells of burn things and there's a brown-ish smog. Breathing is painful after a bit of exercise.

What the hell is happening ? On Suzhou local government website, nothing about this.

5 years 16 weeks ago in  Health & Safety - Suzhou

 
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The correlation between pollution spike and temperature spike, if they are indeed linked, might be due to air-conditioners + non-insulated buildings ? The high temperature would push the air-con usage up, which would push the power usage up, pushing in turn the coal-fired energy plants. A way to confirm that would be a look at the hourly power usage of Suzhou's power plants... But I'm way too bad at Mandarin to get checking that :(

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5 years 16 weeks ago
 
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Hey doc, not sure if this contributes or not, but here goes. I and my girl drove to Anji last weekend, the mountains were beautiful as was the sky and water. When we were returning the farmers were burning their fields about an hour south west of Suzhou. The smoke was so thick you could barely breathe and visibility was down to about 50 meters.

 

 

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5 years 16 weeks ago
 
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The only thing that draws more attention to illegal fires and factory emissions than the stink would be the highly visible plume of smoke during the day.  So, they minimize their exposure by only burning/emitting at night.  They do it around here too.  I've seen burning brush piles that looked like they had more than a few tires thrown in for good measure.  With all the light pollution and smog, the night is never truly pitch black here, so the super black plume of smoke wasn't too hard to make out.

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5 years 16 weeks ago
 
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Shuzhou in Anhui province, which is a horrific shithole of pollution, or the one in Jiangsu province?

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5 years 16 weeks ago
 
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CharlieB and cooter are both spot on.

 

There are like 2 times per year that pollution gets really bad due to people burning down the country side. I've seen thousands of miles literally on fire while traveling by train.

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5 years 16 weeks ago
 
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