Mar 07 2012

Haze in North Thailand: who, what, why, where and how?

Published by at 2:43 pm under Haze in northern Thailand


Haze, smog, smoke, dust: at this time of year — every year — the local and international media becomes full of concerned articles on northern Thailand’s air quality, and the government pretends to be concerned and claims to be doing something about it. We’re not certain — and indeed doubt — if this year’s statistics are worse than previous year’s but it is certain that come the hot, dry season in March and April, the sky up in these parts can get pretty opaque.

Doi Suthep from Doi Suthep Rd - approx 3 kms away but it has got worse since the pic was taken 2 weeks back

Doi Suthep, around 3km away, from Doi Suthep Road, two weeks ago. Haze has worsened since.

Now at various times of year much of Southeast Asia can be prone to less than perfect air conditions and wherever you are in the region you won’t get the clear blue skies and crystal clear vistas you get during say clear days in the rainy season. This is due to various reasons: much of Malaysia, including KL, suffers from smoke wafting across the South China Sea from seasonal fires in Borneo and Sumatra, and large cities such as Bangkok and Saigon suffer from air pollution thanks to exhaust fumes at the best of times. A lack of rain means potentially irritating dust particles in the air even in the most unpolluted of areas and yes, of course, there’s the smoke from burning paddy fields.

Chiang Mai mountain top view, November. This is merely standard afternoon heat haze.

Chiang Mai mountain top view, November. This is merely standard afternoon heat haze.

In the case of North Thailand it is a combination of all these factors. Geography has a lot to do with it. Towns and cities in the north are located in valleys, surrounded by paddy-fields and generally sandwiched between mountain ranges.  Larger conurbations such as Chiang Mai do have increasing traffic congestion problems, but at this time of year farmers also burn off stubble ready for the coming rains and rice planting — and these narrow valleys do make perfect bowls for this smog, dust and smoke to sit in. According to official statistics, the worst air pollution at present is in Phrae and perennially affected Mae Hong Song province, neither of which have much industry or many cars.

Early morning cold season mountain mist - Mae Fah Luang, Chiang Rai

Early morning cold season mountain mist at Mae Fah Luang, Chiang Rai.

Wildfires are a problem at this time of year and consequently some controlled burning of national park forests is necessary and while the burning of agricultural land — such as rice stubble — is officially illegal no-one seems to take much notice; on a ride from Chiang Mai to Pai at this time last year we saw mile after mile of burning roadside vegetation where government workers were taking the easy way out by simply setting fire to verges instead of cutting it by hand. Now if provincial road department crews don’t take any notice how can you expect farmers to?

I can see for miles....rainy season view from Doi Tung

I can see for miles... rainy season view from Doi Tung.

You may have noticed we haven’t mentioned the slash and burn agriculture traditionally practiced by hill-tribes yet, even though this is one of the usual suspects. It’s easy for lowland Thai agro-businesses or government officials to point the finger at the Lisu or Akha but these days many of the hill-tribe groups in northern Thailand don’t actually practise slash and burn anymore. So many government projects, royal schemes and NGO initiatives have worked to reduce initially opium production but also slash and burn, that between the tea and coffee plantations, cherry orchards and strawberry greenhouses you’d probably be pushed to find any slash and burn in most of Chiang Mai or Chiang Rai provinces these days.

Akha tea plantations near Mae Salong - not much slash and burn up here

Akha tea plantations near Mae Salong -- not much slash and burn up here.

Before placing the blame it might be good for the Thai government to actually take some practical steps to reduce air pollution instead of empty promises (and endless talk of absurd cloud seeding schemes),  and actually enforce the no burning laws, have a word with their own council workers and look at the black smoke churned out by thousands of tuk tuks and songthaews across the region.

There have been years when Mae Hong Son, Pai and even Chiang Mai airports have been closed due to poor visibility. While we don’t seem to have reached that stage quite yet — though we are still only early March — yes, the air is pretty thick. Climb up Doi Suthep and you’ll get a view of brown haze. So without over-dramatizing, if it’s clear mountain air you’re after, then it’s probably better to wait until the rains start before heading up this way.

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One Response to “Haze in North Thailand: who, what, why, where and how?” ...

  1. One of my favorite family road trip: Chiang Mai-Sukhothai - Thai+Pleasure=TrEAsUrzon 26 Sep 2012 at 11:01 am

    […] They say the dust and pollution during the burning season is less of a threat to our internal organs in the central plain. I don’t know if this is agreeable as the last time I trusted what the weather man said, I drove all the way down to Pattaya as thats where the clean air was. LOL. What I can say about Sukhothai is how much I truly appreciate her beauty and history. The splendors of Sukhothai’s Historical city is something one must experience as a visitor of Thailand. Just one morning bicycling through the ancient city will leave you with an unforgettable impression of Thai culture “then and now”. History is where it is. If that’s the experience you’re looking or then Sukhothai is a city you don’t want to miss on your trip to Thailand. Now at various times of year much of Southeast Asia can be prone to less than perfect air conditions and wherever you are in the region you won’t get the clear blue skies and crystal clear vistas you get during say clear days in the rainy season. This is due to various reasons: much of Malaysia, including KL, suffers from smoke wafting across the South China Sea from seasonal fires in Borneo and Sumatra, and large cities such as Bangkok and Saigon suffer from air pollution thanks to exhaust fumes at the best of times. A lack of rain means potentially irritating dust particles in the air even in the most unpolluted of areas and yes, of course, there’s the smoke from burning paddy fields…http://www.travelfish.org […]

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