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Chiang Mai air quality 'worst in the world'

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This must be a horrific combination with Covid19.  It will also help accelerate the spread as smoking and pollution both enhance ACE2 expression on the lungs, the site the virus uses to bind to.  Stupid and avoidable.  Death knell for tourism as well.

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On 3/20/2020 at 7:23 PM, Antonymous said:

Which 'people' do you mean?

 

The Thai Government is very evidently not concerned enough about (most of) the nation's poor air quality to do anything about it. The causes within Thailand are obvious. And there is no will to tackle the issue from a regional perspective either.

 

If by 'people' you mean expats, it seems that many are more concerned with scoring cheap points about those choosing to live in Chiang Mai, than about the larger issue. Some are simply not aware that air pollution affects pretty much the whole of the north and north-east regions of Thailand and extends further south somewhat too.

 

In all of 2019 for example Chiang Mai had an average 32.3 PM2.5 and was rated unhealthy or unhealthy for certain groups in three months. Lampang, which you mention, had an avg 33.1 (worse than Chiang Mai) and bad for five months.

 

Korat, the worst, at 42.2 avg and bad for four months.

 

Khon Kaen 36.4 avg and bad for five months.

 

Sukhothai 34.6 avg and bad for five months.

 

Ratchaburi 29.5 avg and bad for three months.

 

Chonburi 19.5 and bad for two months.

 

We should all rally together to condemn the Thai authorities, not each other.

 

 

 

967779415_CMAirQualityHistory.jpg.30aa1311ef34e8a8c19e4f83eb615094.jpg

 

 

"In all of 2019 for example Chiang Mai had an average 32.3 PM2.5 and was rated unhealthy or unhealthy for certain groups in three months."

 

CM had days rated "unhealthy for certain groups" during 10 months.

 

Days rated "unhealthy" or worse during 5 months.

 

 

"In all of 2019 for example Chiang Mai had an average 32.3 PM2.5...".

 

The USA's EPA has stated that the short-term standard (24-hour or daily average) for PM 2.5 is 35 micrograms per cubic meter of air (µg/m3) and the long-term standard (annual average) is 12 µg/m3.

 

So using your stat, CM is almost 3 times the EPA's annual standard.

 

Edited by JimmyJ

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13 hours ago, JimmyJ said:

 

 

 

"In all of 2019 for example Chiang Mai had an average 32.3 PM2.5 and was rated unhealthy or unhealthy for certain groups in three months."

 

CM had days rated "unhealthy for certain groups" during 10 months.

 

Days rated "unhealthy" or worse during 5 months.

 

 

"In all of 2019 for example Chiang Mai had an average 32.3 PM2.5...".

 

The USA's EPA has stated that the short-term standard (24-hour or daily average) for PM 2.5 is 35 micrograms per cubic meter of air (µg/m3) and the long-term standard (annual average) is 12 µg/m3.

 

So using your stat, CM is almost 3 times the EPA's annual standard.

 

 

We are talking about monthly averages, not random days Jimmy. The whole of the north and north-east of Thailand is a multiple of the EPA standard, and some cities that are recorded in the stats in Thailand are significantly worse than Chiang Mai, such as Korat and Khon Kaen.

 

Not enough people are aware of this fact and prefer to single out Chiang Mai just because it hits the #1 spot on certain days.

 

Also many are not aware that high PM2.5 levels published on a certain day in sensationalist headlines often refer to the highest point of that day. I've lived in Chiang Mai for 30 years and know very well how the pollution pattern works. Typically during three months of the year, the PM2.5 is high early mornings and then dissipates through the day. So for example 150 at 7am, 75 at noon and 35 by mid afternoon. For those of us who are prepared, it becomes an inconvenience, not a health hazard and we can enjoy life to the full. That said, I am appalled by the lack of action by the Thai and regional authorities to tackle the problem.

 

For accurate analysis of any city go to the link provided earlier in this thread which is where all the data that I have quoted comes from. I'm not making this stuff up.

 

See below. Chiang Mai three months NOT 10.

 

image.png.8eeaafdabdb4bf1ce060fd147383f5c2.png

 

For comparison, Khon Kaen five months

 

image.png.49bc3290b9a45d53d3b61216bea029d2.png

Edited by Antonymous

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Forget about CV-19, the Govt. should be more concerned about the poisonous air people in Chiang Mai are having to breathe on a daily basis. Shoot the arsonists, make an example of them. I would hate to be a patient in Samoeng hospital if suffering from pneumonia, the air inside the hospital today would be enough to send you over the edge.

image.png.72d0e5dc1fd66a2108739b3ec29b5fa6.png

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