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Phrae PM2.5 Numbers 2020

Yom
in Chiang Rai

Featured Replies

  • Author

February 19,  2021   -   10:00

Big difference to yesterday.

image.png.6f1f73e3c5b158b2f48f3560cf0730e8.png

                    ***************

  • Replies 848
  • Views 100.5k
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  • 4MyEgo
    4MyEgo

    Welcome to Thailand.   1) Turn on a good quality air purifier with HEPA filter 2) PM2.5 indoor detector/monitor will tell you when the air quality is bad 3) Seal up your doors and

  • URMySunshine
    URMySunshine

    I wish moving to the sea was an option but all the sub forums are now having the same discussions. It's 157 in Jomtien today and the air has been terrible for days. I think record warmer weather has m

  • saengd
    saengd

    Change is taking place Yom, slowly but surely, a few years ago there was no burning ban and people couldn't care less. Today there are bans and people are starting to care, it's not perfect but it is 

Posted Images

How is the composite AQI calculated?

  • Author

Good question, VocalNeal.

image.png.3a759840259dbc55b086dd5d795982e4.png

I'm not happy with this table, but you might check it yourself:

https://fit.thequint.com/health-news/explaining-air-quality-index#read-more

 

Another good read:

https://www.researchgate.net/publication/338354259_An_air_quality_composite_index_based_on_pollutant_concentration_factor_analysis

 

Some screenshots?

image.png.a66375378ed100b41ecdc05af0859b2a.png Chiang Mai

image.png.f0a3a18ec1256a0e70554609957ee62c.png Chiang Rai

image.png.d7e996dd075154ff053800fd66072286.png Phayao

image.png.5856d85bf90c99a190de20c5793d1403.png Lampang

image.png.b61bbaa702cb77e247101dd9fc4e8c17.png Phrae

https://aqicn.org/here

 

Worst air on Wednesday and Thursday this week in Chiang Mai.

Qualified information and numbers here:

 http://www.air4thai.com/webV2/region.php?region=2

image.png.b6270f9c12d97c6d326fa08b356e3144.png

 

You're welcome.

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

 

 
 
  • Author

February 20,  2021   -   8:00

 

image.png.59f2a5490d44895908ebaf142db4489f.png

                  ************

It looks somewhat obtuse and something we have to believe because the boffins say so?

Ip =  [(Ihi-Ilow)/(BPhi-BPlow)] (Cp-BPlow)+Ilow,
 
 
 
 
  • Author

It's not a question of believe.

Everyone should be able to read a PM2.5 meter.

Here and now - it shows between 25 and 30 ug/m3.

I think there are no other air pollutants to consider, 

so the AQI might be between 78 and 89.

OK?

By the way, a village nearby:  AQI 81

Phrae city(20km)  AQI  152-165 

(https://aqicn.org/here)

Some models:

image.png.265c1020bc1562a82cc1534608bc48ee.png image.png.21411d2a22524404061654eedcdc3fec.png 

 image.png.27796db78b84b4e25d9e8b6c2a3aeafa.png

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

  • Author

Feb 20,  2021   -   numbers   17:00

Lampang/Mae Moh isn't too far from Phrae,

Phayao, Chiang Rai, so I think this table

might be interesting for all.

image.png.573642cb904a48594a042ee21e6b857e.png

# 4 another lignite fired power plant,

may be without correct filters.

               *************

 

  • Author

February 21,  2021   -   11:00

 

Glad to read this. ChiangMai, Phrae,

Lampang worse.

PM2.5  ug/m3    AQI

CR               36 /     101     

CM              50 /     137              

Phayao M. 38 /     107 

Phrae          51 /     139

Lampang  121 /     181                   

               ******************* 

  • Author

February 22,  2021   -   9:00

Upper north much better than the rest of Thailand

image.png.8f836ad4cae6fd9781b88c4ced37e3c2.png

20 km north of Phrae  PM2.5  165 ug/m3 ~ AQI  215

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

  • Author

Feb 22   -   18:00

 image.png.067d274d79c847f052b591e568c99434.png

North of    PM2.5  65  ~  AQI 156 image.png.a3a53fd927d504d01fa84e2577370535.png

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

  • Author

February 23,  2021  -   Bad air

almost everywhere in Thailand even at 11:00

image.png.da0b98c818ad5ba1fd256d635a6dd1b2.png

https://aqicn.org/here

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

  • Author

Feb 23   image.png.358f40697b0a27324a94b4e0aeb216e2.png   

e.g. between ChiangMai and Nakhon Sawan

image.png.9293cb2bed2f89d1a52fc88fc9d40426.png

   **** Real-time Thailand city ranking*****

PM2.5 ug/m3 ~   AQI

Lampang 137 /   193

Phrae        129 /   189

CM              48 /   132

Phayao       34 /    97

CR               27 /    82

                   ***************

  • Author

Feb 23  -   Update          PM2.5  ~  AQI

image.png.99805378f169d5f47866376b42c2bf34.png

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  • Author

February 24,  2021   -   numbers 6:00

 

     PM2.5 ug/m3   ~   AQI

Lampang        152  /   202    

Phrae              137  /   193 

ChiangMai       74  /   161

ChiangRai        63  /   155 

Phayao             42  /   117

 

Some might remember this factsheet - epa.gov

left:   PM2.5-numbers                           right:   AQI

image.png.2636bcbd805fc43dc888344ab2114968.pngimage.png.6e9fb01c3be8428951454f09fd652647.png 2012_aqi_factsheet.pdf

P.S.  I know there are different models, I trust this one.

 

By the way, at 10:00 north of Phrae PM2.5  230ug/m3 ~ AQI  280,

while Nong Muang Khai shows an AQI of 315.  Mai pen rai, 280 or 315...

image.png.d9a7bf35b75813f17d093fb6f46f8189.png

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    • Thanks 1
    • Author

    Feb 24,  2021   -   numbers 18:00                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Pm2.5   ~    AQI

    Lampang 172   /  222

    Phayao 159   /  209

    Phrae 129   /  189

    CR 69   /  158

    CM 49   /  134

     

    https://www.iqair.com/thailand/phayao

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

    • Author

    February 25,  2021   -   numbers 5:00

    https://www.iqair.com/thailand/phayao

    image.png.346b0a27958a0772945b529f84d4c432.png

    image.png.1b0a7da280e704ec1de65b5875f5cc9a.png   

     

     image.png.353f8d08dee5e41e88960fc6e94278d4.png    

    https://aqicn.org/here  

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

     

     

     

     

    • Author

    Feb 25,  2021   -   22:00

                PM2.5 ug/m3    ~     AQI

    Phrae          134   /    191

    Lampang   114   /    181

    Phayao       106  /    177

    ChiangMai   48  /    132

    ChiangRai    40  /    111

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

     

    • Author

    February 26,  2021   -   10:00

     

    image.png.4092380085c48d208df207185526885a.png

                       ************

    • Author

    Feb 26   -   21:00

     

    image.png.04b5f78b24c592f53786d1756cdabaec.png

                        ************

    • Author

    Februar 27,  2021   -   9:00

     

    image.png.412abc2fc7501f1330fe2ac098dafece.png 

    https://aqicn.org/here

     

         PM2.5 ug/m3  ~  AQI

    Lampang      177  /   227

    Phrae            152  /   202

    Chiang Mai  109  /   179

    Phayao            92  /   170

    Chiang Rai      72  /   160

     

     

    image.png.8a5a33664e3fbc5559824cb5c7b5ce32.png 

    Village, north of Phrae   

    PM2.5   327ug/m3  ~  AQI  377

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

    It sure took a turn for the worse !! This week and certainly today.

    Wasn't it prohibited to burn from febr 1 ?

    So huddle around the airpurifier all day ?

    • Author

    Feb 27,  2021   -   12:00 

    Different PM2.5 readings.

     

    http://www.air4thai.com/webV2/region.php?region=2

    image.png.8321c83c0c049d6d28baeb594a73f62d.png

    image.png.d385338cf3585d6fc6ddc6731626690d.png  ~  AQI 164

     

     

    https://aqicn.org/city/thailand/phrae-meteorological-station

    image.png.055ff88783ae79ce6bf0c6e73ab58898.png  max.  AQI 239

     

     

    https://aqicn.org/station/สำนักงานสาธารณสุขจังหวัดแพร่

    image.png.8a9ef4d912f49acfc065e1aa89756f2e.png  max.  AQI 385

     

     

    Village north of Phrae, 11:00

    WP_20210227_11_12_38_Pro.thumb.jpg.2c4636a8af8e55049522838779042a2a.jpg

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

     

     

     

     

    image.png

    • Author

    Feb 27,  2021   -   18:00

     

    image.png.abe560ae5e3f7ffb04ac067133b512e7.png

                      ***********

    Nothing yet Yom ?

     

    untitled.JPG

    untitled22.JPG

    • Author

    February 28,  2021   -   8:000

    Very bad, indeed. Other places even worse!

    image.png.e8ec6795a0f8da67dde42000a092a07d.png

     

    image.png.005698d6001721355711425efbb5e973.png

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

     

     

    • Author

    Feb 28,  2021   -   17:00

    'Better' at night.

    image.png.5c12716068c6892f16ab7b23be7aa562.png image.png.804cc33fbb08ba73219d55dcfca619e5.png

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

    Today began Dry season. Time to burn Thailand in a non-stop mode, until the raining comes. 
     

    Today in Mae Taeng;

    My shield; Air purifier and air conditioner in non-stop mode. ????

     

    1C00B13C-2503-4C1E-B773-F04D54E4EFDA.jpeg

    • Thanks 1
    • Author

    March 1,  2021   -   9:00

     

    image.png.7eaa2c79a6466142bebb6f64ad181616.png

                       ************

     

     

    image.png

    •
    • Thanks 1
    • Author

    Mar 1,  2021   -   numbers 19:00

     

              PM2.5 ug/m3   ~    AQI 

    CM              52   /    141

    CR               81   /    164

    Lampang  175  /     225

    Phayao     180  /     230

    Phrae        200  /     250

     

    Bangkok      24  /     77

    Is there some kind of Government Agency responsible for the wealth

    of Thai People? - A good sign(?), the former French President Monsieur Sarkozy will go to prison.

    Nicolas Sarkozy: Der frühere französische Präsident muss ein Jahr ins Gefängnis. (Quelle: dpa/Eddy Lemaistre)

     

    Very often tired of ThaiVisa:

    image.png.b41c25ccf9d22bf3e97eb5b1021de7cf.png

     

    or

     

    Sorry, an unknown server error occurred when uploading this file.

    (Error code: -200)

     

    image.png.88d6401fb5a93c0ffd5a210dba8c1259.png

                       *************

     

     

     

     

     

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