Connect with us

Air Pollution

Air purifiers to be added to the top of Bangkok buses. Really…

The Thaiger

Published 

 on 

Air purifiers to be added to the top of Bangkok buses. Really… | The Thaiger
PHOTO: The air-pollution-busters being installed on Bangkok bus tops - The Nation
  • follow us in feedly

“It is like a single dead pixel on your phone, hardly noticeable”

Air purifiers sitting on tops of buses. Apparently this is another solution for Bangkok’s air pollution problems. Sounds like the people selling the mobile bus-top air purifiers have a very convincing sales person!

But Bangkok’s Mass Transit Authority director Surachai Eamvachirasakul says the department will go ahead with plans to install the air purifiers on top of Bangkok’s public buses. The promise is that it will reduce dust pollution. The air-filtration systems which will be installed on top of some of the state-operated buses are said to be capable of sucking in polluted air and blowing out clear air behind it. The director cited several test runs of the system as “evidence”.

“The device is capable of filtering 10,000 cubic metres of air per one trip. Scientific research indicated that an adult would breathe in an average 0.5 cubic metres per hour, so a bus would be able to provide clear air to more than 20,000 people on the road.”

This fuzzy maths shows an appalling ignorance of the larger pollution problem, most of which comes from plantation fires to the north of the capital – little to do with any local city contributions.

Even Chulalongkorn University biologist Jessada Denduangboripant says the plan “will have a near-zero impact on the PM2.5 dust particles”. Near zero. That’s a much closer estimate of the effectiveness of strapping air purifiers to the tops of the buses. Better still, don’t run the polluting old diesel buses in the first place which may cause more pollution per kilometre than the air purifiers could ever ‘filter’.

“If it is working as claimed, I believe it will only be capable of cleansing just a pixel of Bangkok,” Jessada said to Khaosod English.

Another scientist opined that the effectiveness of the air purifiers “would be trivial at best”, given the amount of air in the capital city against what the machines could process.

Matipon Tangmatitham, a researcher at the National Astronomical Research Institute of Thailand got out his calculator.

“Based on the area of Bangkok and the height of dust particles from the ground, it gives out 1.568E+12 cubic metres of air that needed to be filtered. But the scheme would only produce 20,000 cubic meters of clean air, even when all the 500 buses are on the road.”

(And how much pollution is caused by the 500 buses cruising around the city?)

But BMTA director Surachai hit back at the scientists with a test result he gathered, which compares PM2.5 level before entering the device at 48-52 AQI with 1-5 AQI after passing through the device.

In truth, the effectiveness of the system would be almost impossible to calculate on a city-wide situation. A few extra kilometres of wind strength from the north on a day of burn-offs in the north would blow the pollution readings off the scale, completely obliterating any tiny improvements made in the immediate vicinity of the passing bus.

SOURCE: Khaosod English

Air purifiers to be added to the top of Bangkok buses. Really... | News by The ThaigerAir purifiers to be added to the top of Bangkok buses. Really... | News by The Thaiger

Keep in contact with The Thaiger by following our Facebook page.

Never miss out on future posts by following The Thaiger.

Bangkok

Smog across Bangkok can be blamed on a ‘Dust Dome’ of pollutants

Avatar

Published

on

Smog across Bangkok can be blamed on a ‘Dust Dome’ of pollutants | The Thaiger
PHOTO: Thairath Online

Poor air quality across Bangkok in the past week are not just caused by the PM2.5 dust. We can blame a ‘dust dome’ that is formed with low atmospheric pressure, dust and pollutants from the farmland waste burning, and greenhouse gases.

Natural Resources and Environment Minister Varawut Silpa-archa says that the pollutants come from “the improper disposal” of farming waste around Bangkok’s northern outskirts. He also asked provincial governors to ask farmers to avoid burring farm waste. If they refuse to cooperate, there might be an order to ban all outdoor burning activities in the future, while suggesting that farmers should sell their agricultural waste instead of burning it.

The mentioning of the agricultural sector being major contributors to Bangkok’s smog problems is a rare official recognition of the pollution ‘elephant in the room’.

People in Bangkok are also being encouraged to avoid outdoor activities and wear their masks when going outside to prevent both the pollutants and Covid-19. While “unhealthy level” of PM2.5 has been reported in many areas over the past week, the Department of Pollution Control is considering both short-term and long-term measures to tackle the air pollution problems.

Measures that have been rolled out include an extension of the work-from-home policy, lowering the price of low sulphur fuel in the capital and its vicinity, extensive monitoring of waste burning on farms, as well as offering higher prices for sugarcane products which were made in a sustainable manner.

For a long-term plan, the department is considering setting a new standard of air quality by lowering the “safe” threshold for PM2.5 exposure below the current level, but this is likely to happen in the next 5 years. Also, the government aims to apply the Euro-5 standard for vehicle emissions by 2024.

He also says that the pollution situation in Thailand has seen improvement after the measures were implemented. And, the number of days where [air quality] exceeded safe standards was less than 20% of the year.

SOURCE: Bangkok Post

Keep in contact with The Thaiger by following our Facebook page.

Never miss out on future posts by following The Thaiger.

Continue Reading

Air Pollution

Air pollution in Bangkok expected to get worse due to “cold spell”

The Thaiger

Published

on

Air pollution in Bangkok expected to get worse due to “cold spell” | The Thaiger

Air pollution in Bangkok is expected to get worse over the next few days as pollutants are getting trapped in the atmosphere thanks to a recent cold spell and a lack of wind to blow the haze away from the city. In response to the unhealthy air pollution, The PM’s Office permanent secretary says he has asked several ministries to step up efforts in combatting the PM2.5 micron ‘dust’ particulate that has blanketed the city.

He says that the issue has been contained so far due to Covid-19 measures which have made many people work from home.

“But vehicle exhaust fumes, construction sites and burning garbage in open areas is not helping.”

“To add to the problem, the cold spell is creating an “inversion layer” as meteorologists call it, which stops air below it from rising and trapping pollutants.”

As usual, Bangkok officials are looking to some of the smaller, localised traffic issues to blame, although the annual “smoke from the north” problem is the key and overriding issue regarding Bangkok’s smog problem months. The local traffic pollutants, whilst ever-present, don’t cause the skyline smog and haze for the rest of the year.

And when the Thais refer to a “cold spell” it usually means the ambient temperature has dropped to the low 20s. In other parts of the world that would be considered a heat wave!

The secretary says police and other officials are being asked to curb traffic build-ups at intersections as some had seen a sharp increase in dust pollution. Motorists are also being advised to take their cars for routine engine check-ups but some owners are refusing, saying their cars are new and not releasing black smoke. Public transportation vehicles are also being checked for emissions that could further add to the pollution issue in the country’s capital.

Meanwhile, PM Prayut has recently asked people to avoid large gatherings out of what he says is “concern” for their health after the recent cold spell from China hit the nation. But, more particularly, he pointed out political gatherings and has also asked everyone to adhere to social distancing and mask wearing to help curb the recent outbreak of Covid-19 that has swept the country in the past couple of months.

SOURCE: Bangkok Post

Keep in contact with The Thaiger by following our Facebook page.

Never miss out on future posts by following The Thaiger.

Continue Reading

Air Pollution

59 areas see excessive PM 2.5 dust in Bangkok today

The Thaiger

Published

on

59 areas see excessive PM 2.5 dust in Bangkok today | The Thaiger

59 areas in Bangkok are seeing excessive PM 2.5 dust ratings today as air quality is being described as moderate to poor. Din Daeng Road is being identified as the most polluted, according to the air4thai website of the Pollution Control Department. The amount of PM 2.5 dust is being measured at between 39 and 113 microns.

Din Daeng is also joining Bang Na-Trat highway in Bang Na district, Lat Phrao district and Sukhapibaan 5 Road in Sai Mai district in featuring PM10 dust in the atmosphere that is measuring between 54 and 155 microns.

Read more about Bangkok’s pollution today, and its causes, HERE.

The 59 areas that are considered polluted today are:

Hirunrujee sub-district, Thon Buri district

Kanchanapisek Road in Bang Khun Thian district

Bang Na sub-district

Song Khanong sub-district in Phra Pradaeng district

Din Daeng sub-district, Din Daeng district

Talat Kwan sub-district in Muang district of Nonthaburi

Omnoi sub-district in Krathumban district of Samut Sakhon

Paknam sub-district in Muang district of Samut Prakan

Bang Sao Thong sub-district

Khlong 1 sub-district in Khlong Luang district of Pathum Thani

Rama 4 Road in Pathumwan district

Intharapitak Road in Thon Buri district

Lat Phrao Road in Wang Thong Lang district

Din Daeng Road in Din Daeng district

Khlong Goom sub-district

Khlong Sam Wa district

Chom Thong district

Charunsanitwong Road in Bang Phlad district

Rama 2 Road in Bang Khun Thian district

Vibhavadi Rangsit highway in Din Daeng district

Sukhumvit Road in Phra Khanong district

Ratburana Road in Ratburana district

Rama 5 Road in Dusit district

Trimitr Road at Wongwian Odeon, Samphanthawong district

Rama 6 Road in Phya Thai district

Lat Phrao Road at Soi Lat Phrao 95 in Wang Thong Lang district

Rama 4 Road in front of Sam Yan Mitrtown, Pathumwan district

Narathiwat Road in Bang Rak district

Thung Wat Don sub-district

Rama 3-Charoen Krung Road in Bang Khor Laem district

Sukhumvit Road Soi 63 in Wattana district

Pattanakarn Road in Suan Luang district

Bang Na-Trat highway in Bang Na district

Pahonyothin Road at Kasetsart intersection, Chatuchak district

Don Mueang district

Sukhapibaan 5 Road in Sai Mai district

Nawamin Road in Bang Kapi district

Suan Sayam-Raminthra intersection in Kanna Yao district

Lat Krabang Road in Lat Krabang district

Seehaburanakit Road in Min Buri district

Liab Waree Road in Nong Chok district

Srinakharin Road in Prawet district

Ratchadapisek-Tha Phra Road in Thon Buri district

Charoen Nakhon Road in Khlong San district

Tha Phra intersection, Bangkok Yai district

Soi Nikhom Rodfai Thon Buri in Bangkok Noi district

Buddha Monthon 1 Road in Taling Chan district

Thawee Wattana Road in Thawee Wattana district

Aekkachai Road in Bang Bon district

Pracha-uthit Road in Thung Khru district

Samsen Road in Phra Nakhon district

Huay Khwang district

Khlong Toey sub-district

Ban Sue sub-district

Lat Phrao district

Thung Song Hong sub-district

Pahonyothin Road in Bang Khen district

Saphan Soong district

SOURCE: Thai PBS World

Keep in contact with The Thaiger by following our Facebook page.

Never miss out on future posts by following The Thaiger.

Continue Reading
Thailand News Today | Gambling crackdown, Seafood market to reopen, Vlogger challenge | Jan 21 | The Thaiger
Thailand2 days ago

Thailand News Today | Gambling crackdown, Seafood market to reopen, Vlogger challenge | Jan 21

Thailand News Today | Covid testing for visas, Business impact, Vaccine approval | January 19 | The Thaiger
Thailand4 days ago

Thailand News Today | Covid testing for visas, Business impact, Vaccine approval | January 19

Thailand News Today | Weekend Bangkok bombs, Thailand fires, Covid update | January 18 | The Thaiger
Thailand5 days ago

Thailand News Today | Weekend Bangkok bombs, Thailand fires, Covid update | January 18

Thailand News Today | Stray car on runway, Indonesian quake, 300 baht tourist fee | January 15 | The Thaiger
Thailand1 week ago

Thailand News Today | Stray car on runway, Indonesian quake, 300 baht tourist fee | January 15

Thailand News Today | Governor off respirator, sex-trafficking arrest, condo prices falling | January 14 | The Thaiger
Thailand1 week ago

Thailand News Today | Governor off respirator, sex-trafficking arrest, condo prices falling | January 14

Thailand News Today | Chinese vaccine, Thailand ‘drug hub’, Covid update | January 13 | The Thaiger
Thailand1 week ago

Thailand News Today | Chinese vaccine, Thailand ‘drug hub’, Covid update | January 13

Thailand News Today | Bangkok may ease restrictions, Phuket bar curfew, Vaccine roll out | January 12 | The Thaiger
Thailand2 weeks ago

Thailand News Today | Bangkok may ease restrictions, Phuket bar curfew, Vaccine roll out | January 12

Thailand News Today | Covid latest, Cockfights closed down, Bryde’s Whale beached | January 11 | The Thaiger
Thailand2 weeks ago

Thailand News Today | Covid latest, Cockfights closed down, Bryde’s Whale beached | January 11

Thailand News Today | Southern floods, Face mask fines, Thai Air Asia woes | January 8 | The Thaiger
Thailand2 weeks ago

Thailand News Today | Southern floods, Face mask fines, Thai Air Asia woes | January 8

Thailand News Today | 305 infections, No happy ending for massages, Phuket quarantine mooted | Jan 7 | The Thaiger
Thailand2 weeks ago

Thailand News Today | 305 infections, No happy ending for massages, Phuket quarantine mooted | Jan 7

Thailand News Today | 10,000 schools closed, 900 new migrant infections, Gambling crackdown | January 6 | The Thaiger
Thailand2 weeks ago

Thailand News Today | 10,000 schools closed, 900 new migrant infections, Gambling crackdown | January 6

Thailand News Today | PM reverses lockdown, Southern P.D.A. crackdown, Covid update | Jan 5 | The Thaiger
Thailand3 weeks ago

Thailand News Today | PM reverses lockdown, Southern P.D.A. crackdown, Covid update | Jan 5

Thailand News Today | Record daily infections, Covid restrictions, British arrivals ‘on hold’ | Jan 4 | The Thaiger
Thailand3 weeks ago

Thailand News Today | Record daily infections, Covid restrictions, British arrivals ‘on hold’ | Jan 4

Thailand News Today | Pattaya restrictions, 2021’s extra holidays, Covid update | December 30 | The Thaiger
Thailand3 weeks ago

Thailand News Today | Pattaya restrictions, 2021’s extra holidays, Covid update | December 30

Thailand News Today | Covid update, Bangkok restrictions, Gold rush | December 29 | The Thaiger
Thailand4 weeks ago

Thailand News Today | Covid update, Bangkok restrictions, Gold rush | December 29

Follow The Thaiger by email:

Trending