Use AirVisual with caution!

[Lupusthai]

I had a look today on AirVisual Cha-Am and was surprised by the reading:
"152 unhealthy for sensitive groups" and (relative) forecast and history...
I couldn't believe...
 

But a look on the AirVisual-Map revealed:

There is no contributor in Cha-Am! So they took some middle of the nearest contributors - with a maximum at Toyota in Petchaburi-city!

 

To say: Have a look at the AVMap before posting or commenting air pollution of your place!

 

Screenshots:

[Halfaboy]

I believe there is a saying which goes: the are lies, big lies and statistics....

[ThomasThBKK]

Just now, Halfaboy said:

I believe there is a saying which goes: the are lies, big lies and statistics....

 

No lies involved here. They use nearby stats and the satelitte images which isn't accurate but also marked in their app and website.

 

Op, you should get your own PM2.5 reader, it's a necessity to have here and they cost next to nothing.

[KhunBENQ]

The "AQI" website shows how patchy the measurement stations are.

http://aqicn.org/map/thailand/

 

[ThomasThBKK]

4 minutes ago, KhunBENQ said:

The "AQI" website shows how patchy the measurement stations are.

http://aqicn.org/map/thailand/

 

 

They are different from Airvisual tho, Airvisual also uses the user installed measurement devices, they are far less patchy than Aqinc which relies on "official" entities running a bunch of stations

[Lupusthai]

20 minutes ago, ThomasThBKK said:

Op, you should get your own PM2.5 reader, it's a necessity to have here and they cost next to nothing.

Thanks for your hint!
I'm not too concerned about the AQI since I'm living 2 km away from the sea and my house is surrounded by about 20 big trees (which absorb PM2.5) in my garden! And no "burning" neighbors...

Thanks anyway...

[TallGuyJohninBKK]

Have your own PM2.5 monitor, with the added feature that it's battery powered as well, so can be taken out/on the road when you're away from home.

 

It's smaller than a pack of cards, and would fit in your pocket. Just charge with a micro USB cable, and you're good to go.

 

https://www.aliexpress.com/item/32826759103.html

 

 

 

[TallGuyJohninBKK]

4 minutes ago, Lupusthai said:

Thanks for your hint!
I'm not too concerned about the AQI since I'm living 2 km away from the sea and my house is surrounded by about 20 big trees (which absorb PM2.5) in my garden! And no "burning" neighbors...
 

I think you're missing a few things...

 

--It's perfectly possible to have smog/PM2.5 along coastlines... Just look at Pattaya... Just depends on local pollution activities and weather conditions.

 

--Trees don't absorb PM2.5, which basically is tiny particles suspended in the air. Trees do use carbon dioxide, which is a gas and an entirely different thing.

 

[Card]

20 hours ago, Lupusthai said:

Thanks for your hint!
I'm not too concerned about the AQI since I'm living 2 km away from the sea and my house is surrounded by about 20 big trees (which absorb PM2.5) in my garden! And no "burning" neighbors...

Thanks anyway...

I wouldnt depend on greenery in pollution hit areas to significantly suck up small particles that are being renewed constantly. The only real way for plants to do that is to adsorb them onto their surface, not 'inhale' them through stomata. Since mature trees are slow growing, if at all, there is little new surface to expose and the old surface will be fully saturated. Get a monitor and see for yourself.

[ianezy0]

An App indicator is good enough. If the majority of readings in your general area indicate red, green or orange then take the appropriate action. Or Nov to Apr wear a mask full time. I don’t see the point of a reading at your proximity because , the chances are you will be somewhere else 30 min later ????

[Number 6]

I recently dlld this app but a laff bc no one can do anything abt it.

 

I'm not going to wear a mask that just looks stupid. If you need a mask YOU NEED TO MOVE.

[Pravda]

On 12/18/2019 at 11:38 AM, Lupusthai said:

Thanks for your hint!
I'm not too concerned about the AQI since I'm living 2 km away from the sea and my house is surrounded by about 20 big trees (which absorb PM2.5) in my garden! And no "burning" neighbors...

Thanks anyway...

 

I feel violated reading your original post and this hilarious follow up. 

[kekalot]

took that picture one minute after I loaded the website (and I live 50 meters from the sea)

AirVisual was correct last week when it was showing 155 average too