Phrae PM2.5 Numbers 2020

[Yom]

December 14   -   18:30

 

North of Phrae  100 ug/m3  PM2.5

or AQI  174        

 

 

    

 

North - some places bad, others not.

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[Yom]

December 15   -   6:30

 

When you walk through the dust
Hold your head up high
And don't be afraid of the dark ...

You'll never walk alone,

neither in ChiangRai nor in Bangkok.

 

air quality  -  a bit hidden in:  bangkok-news

*  residents-of-bangkok-advised-to-avoid-out-door-

   activities-as-air-quality-worsens

*  bangkok-air-pollution-at-unsafe-levels

*  thick-pm25-to-continue-until-dec-17   

*  pollution-in-bangkok-hits-harmful-levels-on-friday-11-dec

    (4 different threads on TV today...)

 

https://aqicn.org/here   5:00

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[Yom]

December 15   -   18:00

While CM and CR are yellow and orange

- with some red dots -

and the Isan mostly green, Bankok is

not good, but has improved a lot.

               ***********

 

[Yom]

December 16   -   9:00

 

Today the whole north again worse than Bangkok.

Most of happy Isan green.

--- same scale ---

https://aqicn.org/here

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[Yom]

Some up to date information on ThaiVisa:

https://forum.thaivisa.com/topic/1196978-thai-authorities-to-clamp-down-on-polluters-as-haze-chokes-bangkok/

https://forum.thaivisa.com/topic/1192647-its-back-lousy-air-qualityugh/

https://forum.thaivisa.com/topic/1196940-bangkok-has-world%E2%80%99s-3rd-worst-air/

https://forum.thaivisa.com/topic/1196516-bangkok-air-pollution-at-unsafe-levels/page/

https://forum.thaivisa.com/topic/1161887-bangkok-air-pollution-2020/

https://forum.thaivisa.com/topic/1196999-bangkok-pollution-is-so-bad-public-health-ministry-advises-people-to-work-from-home/

https://forum.thaivisa.com/topic/1196750-residents-of-bangkok-advised-to-avoid-out-door-activities-as-air-quality-worsens/

https://forum.thaivisa.com/topic/1196762-thick-pm25-to-continue-until-dec-17/

https://forum.thaivisa.com/topic/1196807-pms-office-permanent-secretary-orders-officials-to-address-pm25/

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[Yom]

So what?

Coroner says failure to reduce pollution levels to legal limits was factor in death of

Ella Kissi-Debrah, who had severe asthma. - I can understand that now.

https://www.theguardian.com/environment/2020/dec/16/girls-death-contributed-to-by-air-pollution-coroner-rules-in-landmark-case

 

[Yom]

December 17   -   18:00

 

Bangkok some dirt spots, the north yellow-orange

with some red while Isan a lot of green.

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[Yom]

Dec. 17   -   this afternoon.

These are the clouds transporting 'dirt' from eastnortheast to...?

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[Yom]

December 18   -   19:00

North:  air quality not good. - Those affected

should switch on their air purifiers.

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[Yom]

December 19   -   18:00

Comparatively a very good day https://aqicn.org/here

 

Not so positive  https://www.ventusky.com/

Their overall picture

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[Yom]

December 20   -   10:00

 

 

https://www.iqair.com/air-quality-map

   

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[Yom]

    December 20   -   17:00

 

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[Yom]

December 21   -   17:00

Winter solstice - no snow, no ice,

but a lot of green

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[Yom]

December 22   -   6:00

 

 

                    ***********

[Yom]

December 22   -   17:00

North remaining yellow and orange,

Bangkok and Isan better than yesterday.

                        *********

[Yom]

December 23   -   17:00

 

                            ************

[Yom]

December 24   -   8:00

 

Bangkok and Isan similar

                                 ************

[Yom]

December 24   -   20:00

 

                          ************

[Yom]

December 25   -   9:00

One of the two is much 'better'

same scale

 

Some interesting posts on thaivisa

https://forum.thaivisa.com/topic/1198225-toxic-haze-

hits-14-areas-in-bangkok-vicinity/?tab=comments

#comment-16109941

or

 

https://forum.thaivisa.com/topic/1198222-im-fed-up/

page/2/?tab=comments#comment-16110041

 

 

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[Yom]

December 25   -   17:00

 

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[Yom]

December 25   -   21:00

 

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[Yom]

December 26   -   11:00

Isan green and yellow 

North and Bangkok bad air again

https://aqicn.org/here

                       ************

[Yom]

December 26   -   21:00

Tonight worse than at noon

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[Yom]

December 27   -   11:00

 

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[Yom]

December 28   -   11:00

not much different from yesterday

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[VocalNeal]

On 12/26/2020 at 11:44 AM, Yom said:

North and Bangkok bad air again

 

What standard do you use for your basis of good or bad? 

[Yom]

5 hours ago, VocalNeal said:

What standard do you use for your basis of good or bad? 

 

Thanks for your question, Mr. VocalNeal.

Is there any standard anywhere for good and bad?

You are  referring to this picture?

There are so many sophisticated sensors these days all over the world

and so many different models to calculate, to represent, that you must

decide for yourself, what to accept, what to trust, what's good, what's bad.

'bad'

Under the given circumstances (what is feasible in TH?)

50 to 60 ug/m3 PM2.5 or AQI 137 to AQI 153 is bad till very bad.

Everything above I usually call crazy.

Even if you usually can't see or smell the air pollution.

 

There are different limits all over the world. I would prefer US standards, 

better than EU or Thailand, while China seems to be the bad boy.

 

Please have a look at the decreasing ug/m3–PM2.5-numbers over

19 years in the US. -  Thailand will never reach this goal.

At least not in my lifetime.

 

https://www.epa.gov/air-trends/particulate-matter-pm25-trends

To add:  US 'National Sstandard'  ~ 12ug/m3   that means an   AQI  50.

People often confuse the names/units.

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[VocalNeal]

OK cheers. Most posts or sites seem to concentrate on dust ie. PM2.5 which is mostly construction or blown from outside countries except of course in BKK. (condo construction etc.)

[Yom]

December 29   -   19:00

Good or Bad - You can decide

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[Yom]

December 30   

3:00

 

11:00

 

13:00

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