Samuel Smith Posted February 19, 2020 Share Posted February 19, 2020 1 hour ago, BritManToo said: Well, instead of hiking/cycling 3x a week, I find it hard to just go once. So that makes me 66/100, can hardly be bothered to do anything. #metoo Probably 75/100 1 Link to comment Share on other sites More sharing options...
orang37 Posted February 19, 2020 Share Posted February 19, 2020 54 minutes ago, cerox said: AQI should be above 200 now in the end of February. Not good, because it means there will be burning when many of us come back in the end of April and May This is like a surgeon saying: "damn, not enough gangrene to amputate." ~o:37; Link to comment Share on other sites More sharing options...
chingmai331 Posted February 19, 2020 Share Posted February 19, 2020 you think bad air is making me tired? i'm so weary half the week. the bad air affects my breathing sure, but are my lungs and blood compromised? currently air in hua hin as bad as CM, so what's the merit in moving there? 1 Link to comment Share on other sites More sharing options...
Popular Post KrishnaCameb4Buddha Posted February 21, 2020 Popular Post Share Posted February 21, 2020 The website aqicn.org AQI reads approx 150 now Fri Feb 21 7:30AM for Chiang Mai. My meter--which I have calibrated numerous times before---reads approx 225, much higher than what aqicn.org claims. For months and months up until a few weeks ago, my meter was always in accord with the government website aqicn.org But recently--as burning season spews more and more PMs--when the AQI on my meter is, say, over 200 the website aqicn.org reads up to 100 *lower* than what I believe the true reading is. As the day progresses, and as the pollution level falls from the morning highs of over 200 to in the 150's or so, then aqicn.org reading is in accord with my meter. Could it be that 'someone' told aqicn.org to fudge the numbers to appear lower than when they are actually in the purple range (201-300, 'very unhealthy')? Do the plummeting tourist numbers have anything to do with trying to paint a happy face on Thailand? 1 2 Link to comment Share on other sites More sharing options...
cerox Posted February 21, 2020 Share Posted February 21, 2020 I hope you are right about that and they are doing their job / getting it done. Because the numbers I see on AQI websites, make me angry, they do not burn enough, that means it will last too long. I wonder whats the big deal is. Have they run out of matches? We had 200-300 and more last year. Why cant you do this properly? 1 Link to comment Share on other sites More sharing options...
KrishnaCameb4Buddha Posted February 21, 2020 Share Posted February 21, 2020 for 6,000 baht you can buy a high quality air filtration machine which is considerably lower than the 18,000 baht Sharps and Panasonics that are sold. For 8,000 baht you can buy a larger version of the same machine. Go to Maya to the floor with the mobile phones, look for the orange and white sign that says Mi. Mi is the company Xiaomi, the giant Chinese company which makes the Android phone that looks like an Iphone, and which phone is rated very high by computer magazines (but not as easy to get repaired in Thailand as is Oppo because there are few repair shops). The air machine is lightweight, comes in a great box with a secure handle. Replacement filters are around 900 baht. The machine has an AQI meter built in to show the Air Quality that is flowing *out* of the machine. Very impressive technology at an affordable price. At least when you are in your room you can breathe AQI 25 or so, rather than the toxic brew right outside your window, which high PMs cause stroke, heart attack, dementia, Alzhiemers. 1 Link to comment Share on other sites More sharing options...
Scott Posted February 21, 2020 Share Posted February 21, 2020 Troll post reported and removed. Keep it civil and on topic. Link to comment Share on other sites More sharing options...
KrishnaCameb4Buddha Posted February 21, 2020 Share Posted February 21, 2020 RE: N95 masks. They really work. I strapped one over the *intake* of my CPAP machine, the machine for people with sleep apnea. I measured the AQI with my meter when I visited a small town in Kanchanaburi where the burning is even worsenthan Chiang Mai, with AQI in the morning reading in the 300's, even 400's. (The AQI is *worse* in small rural towns because front-yard burning is allowed, unlike inside Chiang Mai city) I then put the meter in line with the 'nose pillow' where the CPAP delivers the air, i.e., the ‘exhaust’ or ‘outtake’. The 3M N95 mask dropped the level to approximately 25, in the ‘green’ level from 300-400! As many already know the gauzy surgical masks that are not N95 rated, will not prevent PM2.5 or PM10 from getting in your lungs. 1 Link to comment Share on other sites More sharing options...
CNXexpat Posted February 21, 2020 Share Posted February 21, 2020 WOW! Link to comment Share on other sites More sharing options...
Ventenio Posted February 24, 2020 Share Posted February 24, 2020 The forecast is soooooo weirdly predictable. FIRST of the month and things really change. March 1st and it looks to get MUCH worse. I've seen this sooo many times. I guess this year the rainy season wasn't very strong, but I'm sure it started "on time." Link to comment Share on other sites More sharing options...
cerox Posted February 24, 2020 Share Posted February 24, 2020 Why are they not burning? AQI mostly orange, has been like that for days. Really getting angry. Can we donate matches? Or what is the problem? Get it done. Link to comment Share on other sites More sharing options...
Yom Posted February 24, 2020 Share Posted February 24, 2020 6 hours ago, cerox said: AQI mostly orange, has been like that for days. Ophthalmologist ? Link to comment Share on other sites More sharing options...
NotEinstein Posted February 24, 2020 Share Posted February 24, 2020 cerox It is because today the deputy governor of Chiang Mai, oversaw a cursing ceremony aimed at bringing bad luck and karma to all forest fire starters. Link to comment Share on other sites More sharing options...
cerox Posted February 24, 2020 Share Posted February 24, 2020 It is now all orange again apart from a few exceptions in CNX city. Really not funny. We rely on this going out for a period of time. They are not keeping up their deal and burn earlier and later instead. They must be laughing very hard. Link to comment Share on other sites More sharing options...
JimmyJ Posted February 24, 2020 Share Posted February 24, 2020 A poster in one of these Thailand or Bangkok or Chiang Mai Air Quality threads put 3 annual month by month charts that looked like they were from aqicn.org on one page. A very useful visual reference. Unfortunately I forgot to bookmark it. If he is reading this or anyone else who saw it - please repost it here and/or pm me the url. Thank you. Link to comment Share on other sites More sharing options...
JimmyJ Posted February 24, 2020 Share Posted February 24, 2020 (edited) Like the above but 3 of them - 3 consecutive years. Edited February 24, 2020 by JimmyJ Link to comment Share on other sites More sharing options...
KrishnaCameb4Buddha Posted February 27, 2020 Share Posted February 27, 2020 (edited) AQI is 250 now, in Chiang Mai, near Kad Suan Kaew, *NOT* the approx 150 that aqicn.org claims on their website. Members could benefit by buying an AQI meter and help expose this mis-stating of the actual numbers. I heard that someone on Facebook is selling them in Chiang Mai for around 2500 baht. For almost two years I've been monitoring the AQI with my meter and with aqicn.org, and up until about a month ago the numbers have always coincided. But lately, the numbers only coincide when the AQI on my meter is 150 or below. However, when my meter shows a much higher reading, somehow aqicn.org reading does not budge. Edited February 27, 2020 by KrishnaCameb4Buddha clarify 2 Link to comment Share on other sites More sharing options...
Forza2002 Posted February 27, 2020 Share Posted February 27, 2020 Link to comment Share on other sites More sharing options...
chaila Posted February 27, 2020 Share Posted February 27, 2020 23 minutes ago, Forza2002 said: Be patient Forza,Chiang Mai 13 march 2019 1 1 Link to comment Share on other sites More sharing options...
NorthernRyland Posted February 27, 2020 Share Posted February 27, 2020 (edited) I'm in Mae Jo Chiang Mai but this could apply to anywhere. 1) does anyone know what the 122 value from http://aqicn.org/city/chiang-mai/ is derived from? This is obviously not a reflection of an average that makes any sense to me. I don't know where aqicn.org gets its data from but can Thailand manipulate it so that people getting the official number from phones etc... are getting a fake number? I also see that numbers from February have been omitted in the historical data (go to the website and scroll to the bottom). Very suspicious! 2) The device flickers so I wasn't able to capture it properly but outside in front of my house it's reading 85 PM 2.5 at about 4PM in Mae Jo Chiang Mai. This number seems way too low but can the device be wrong? The air filter in the house is reading 65 PM 2.5 so I tend to think it's correct. Does anyone in Chiang Mai have any personal data they've collected that can confirm the correct number? The sky looks absolutely disgusting today, can't even see the mountains slightly. I want to believe the number is about 150+ like the map shows but I can't confirm this from my own tests. Edited February 27, 2020 by genericptr Link to comment Share on other sites More sharing options...
CharlieH Posted February 27, 2020 Share Posted February 27, 2020 There was another thread recently explaining the difference in AQI readings and the reading on air filters and the equation used to balance them as they are not the same thing. Convert pm2.5 to AQI here https://www.airnow.gov/index.cfm?action=airnow.calculator Based on this calculator, your filter in house of 65 represents AQI of 156 ! 1 1 Link to comment Share on other sites More sharing options...
Yorkshire Tea Posted February 27, 2020 Share Posted February 27, 2020 (edited) 1 hour ago, genericptr said: The air filter in the house is reading 65 PM 2.5 so I tend to think it's correct. Post a photo of your air purifier reading 65. Could be showing pm2.5 conc or AQI. Or your filter is finished, or you haven't taken it out of the plastic... Edited February 27, 2020 by Yorkshire Tea Link to comment Share on other sites More sharing options...
NorthernRyland Posted February 27, 2020 Share Posted February 27, 2020 Here's a picture. You're right, I don't see any units just a number of "50" but given it's in the green zone I think this is AQI. Link to comment Share on other sites More sharing options...
NorthernRyland Posted February 27, 2020 Share Posted February 27, 2020 On 2/24/2020 at 9:19 PM, JimmyJ said: Like the above but 3 of them - 3 consecutive years. This is the chart I mentioned above and the missing fields for February. Are they suppressing information or do they release months stats on a lag? Link to comment Share on other sites More sharing options...
Yorkshire Tea Posted February 27, 2020 Share Posted February 27, 2020 1 minute ago, genericptr said: Here's a picture. You're right, I don't see any units just a number of "50" but given it's in the green zone I think this is AQI. No, it's pm2.5! That's a Xiaomi. I guess you have it on auto mode. Don't. Put it on the heart mode. That'll give you full power on the fan & should reduce the pm concentration. Download the xiaomi app & connect to your purifier. You can then control the strength of the fan in heart mode (manual mode), so it won't be so noisy. On auto mode, the fan doesn't kick in to clean the air properly. i presume this is because it works on Chinese safe AQI levels. You need that number 051 to be below 35 or lower. pm2.5 35 conc = AQI of 100, or in the yellow zone on most websites. Link to comment Share on other sites More sharing options...
Yorkshire Tea Posted February 27, 2020 Share Posted February 27, 2020 If you have the Chinese version of the purifier, & not the Global version, when you install the Xiaomi Home app, tell it you're in mainland China, or the app won't connect to your purifier. Link to comment Share on other sites More sharing options...
NorthernRyland Posted February 27, 2020 Share Posted February 27, 2020 11 minutes ago, Yorkshire Tea said: No, it's pm2.5! That's a Xiaomi. I guess you have it on auto mode. Don't. Put it on the heart mode. That'll give you full power on the fan & should reduce the pm concentration. Thanks, I try to get the app and play with the fan. I turned it on auto because I found the sound to be loud enough to be intrusive. But my original question still stands, why am I getting these low ratings? http://aqicn.org is showing 150-170 levels but I can't reproduce that with my devices. I also just noticed that humidity is 80% outside so I'm wondering if that's causing the appearance of thick smoke. Link to comment Share on other sites More sharing options...
Yorkshire Tea Posted February 27, 2020 Share Posted February 27, 2020 2 minutes ago, genericptr said: But my original question still stands, why am I getting these low ratings? http://aqicn.org is showing 150-170 levels but I can't reproduce that with my devices. I also just noticed that humidity is 80% outside so I'm wondering if that's causing the appearance of thick smoke. AQICN is showing AQI. Your devices are showing pm2.5 Use the link CharlieH posted to convert pm2,5 to AQI or the other way. Link to comment Share on other sites More sharing options...
NorthernRyland Posted February 27, 2020 Share Posted February 27, 2020 35 minutes ago, Yorkshire Tea said: AQICN is showing AQI. Your devices are showing pm2.5 Use the link CharlieH posted to convert pm2,5 to AQI or the other way. Thanks buddy. So the 150 number on aqicn.org is 55 pm 2.5? That does indeed explain my confusion. So the other PM levels are what gives the "AQI" such a large value? I thought PM 2.5 was the primary issue and that other things were like dust/dirt and not AS concerning. Link to comment Share on other sites More sharing options...
PowerKat Posted February 27, 2020 Share Posted February 27, 2020 57 minutes ago, Yorkshire Tea said: Download the xiaomi app & connect to your purifier. You can then control the strength of the fan in heart mode (manual mode), so it won't be so noisy. The app wants complete access to your phone contacts, location, etc. Plus they want your phone number or Facebook account to register. Very intrusive app for some thing that only controls an air purifier so I deleted it right away. You should check your background apps and Id bet it's always open in the background. Link to comment Share on other sites More sharing options...
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