January 16, 20215 yr Author January 16, 2021 - 19:00 today 19:00 this morning at 9 In addition an interesting, good report: difference between respirator filtering standards such as N95 and FFP2/FFP3 https://fastlifehacks.com/n95-vs-ffp/ https://smartairfilters.com/en/blog/can-masks-capture-coronavirus/ *************************
January 17, 20215 yr Author January 17, 2021 - 17:00 'Better' in the sunlight Phrae this morning 90 ug/m3 ~ AQI 170 at night 43 ug/m3 ~ AQI 119 **********
January 19, 20215 yr Author January 20, 2021 - 5:00 https://aqicn.org/here http://berkeleyearth.org/air-pollution-overview/ **************
January 21, 20215 yr It's gone from very bad to even worse ! Can't go out . Luckily I have an airpurifier but my dumpf.ck cats insist to go out and want to keep the door open. This should be the best season with great temperatures but totally ruined by this bad air.
January 21, 20215 yr Author 8 hours ago, FlorC said: ... my dumpf.ck cats ... want to keep the door open. Perhaps a cat door with a photoelectric barrier might help? I'm sure there are members on ThaiVisa with a lot of ideas.
January 22, 20215 yr 20 hours ago, Yom said: Perhaps a cat door with a photoelectric barrier might help? I'm sure there are members on ThaiVisa with a lot of ideas. Not my door to make a hole in it . I was in Phrae city today and it seemed beter there despite the PM2,5 numbers. Who's right here ? https://www.iqair.com/thailand/phrae/rong-kwang http://aqicn.org/station/thailand/รพ.-ร้องกวาง-จ.-แพร่ https://www.ventusky.com/?p=18.23;99.80;8&l=pm25
January 22, 20215 yr Author 11 minutes ago, FlorC said: Who's right here It depends on time and place, a bit difficult. Your #1 AQI 108 - PM2.5 38 #2 is Rongkwang Hospital in Rongkhem: AQI 141 should be PM2.5 about 50 #3 Ventusky 13:00 PM2.5 51 ug/m3 ~ about AQI 142 and at our place now: PM2..5 49 0 AQI 136 All not too different.
January 22, 20215 yr IQAir always shows less than the others. (now 83) aqicn shows more. (now 136). When I go walking into the backland , I see a lot of rice fields (and some corn), that are going to be burned . Even the place where I stay , burns some garbage , they just don't care. (and yes there is garbage pick up once a week). Although Phrae has no corona , it's a good excuse to wear a mask , so you don't stand out as a pollution nut with a mask. I enjoyed the ride to our city in 16 degr this morning though. No aircon or even a fan needed in the car.
January 22, 20215 yr Author 1 hour ago, FlorC said: I enjoyed the ride to our city in 16 degr this morning though. The temperature is very comfortable, the air pollution not. Better we hadn't any idea of the situation? iqair.com vs. aqicn.org, it's a matter of taste... today at 17:00: iqair.com shows the AQI 186, *** this is an index equivalent to 124 ug/m3 PM2.5 *** this is a measurement see: https://www.airnow.gov/aqi/aqi-calculator/ ************************************************************** 'a bit different' https://aqicn.org/station/thailand/phrae-meteorological-station AQI 117 ~ 42 ug/m3 PM2.5 Confusing? - May be, different time, different place. ****************************
January 24, 20215 yr Author January 24, 2021 - 18:00 Back to the OP - Jan. 2020 Today - not bad? Here are 5 meteo. stations within 30km of Phrae, worth to have a closer look Rongkwang Hospital – Rongkhem Ban Thung Khaeo รพ.สต. ไทรย้อย อ.เด่นชัย near DenChai *********************
January 25, 20215 yr Author January 25, 2021 - 8:00 https://aqicn.org/here https://www.iqair.com/ https://www.airnow.gov/aqi/aqi-calculator/ Phrae PM2.5 119 ug/m3 Chiang Rai PM2.5 61 ug/m3 Chiang Mai PM2.5 53 ug/m3 Bangkok PM2.5 28 ug/m3 **********************
January 25, 20215 yr Author Today an easy conversion PM2.5 to AQI. (1 page each) 2021 Simple View PM2.5 - AQI.odt2021 Simple View PM2.5 - AQI pdf.pdf
January 26, 20215 yr Author January 26, 2021 Northern numbers 9:00 https://aqicn.org/here 10:00 **********
January 26, 20215 yr Pretty much the same here as yesterday . Sunshine , pale blue sky and the birds are singing.
January 26, 20215 yr Author January 26, 2021 - 18:00 https://aqicn.org/here AQI PM2.5 ug/m3 Phrae 186 124 Chiang Rai 157 68 Chiang Mai 123 45 Bangkok 123 45 https://www.iqair.com/thailand/bangkok https://www.airnow.gov/aqi/aqi-calculator/ **********************
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