Smog back in Bangkok

December 10 2019

thanis / Shutterstock.com

The smog returned to the Thai capital on Tuesday morning. At seven measuring stations, PM 2.5 fine dust particles were measured above the safe value, up to 57 micrograms per cubic meter of air.

The environmental department of the Bangkok Metropolitan Administration reported that the amount of particulate matter with a diameter of 2,5 microns or less (PM 2,5) exceeded safe levels. It was especially wrong in Bang Khen Laksi, Phasicharoen, Bang Sue, Pathumwan, Bang Kho Laem and Khong San.

Silapasuai Rawisaengsun advised the residents to take good care of their health. With coughing fits, breathing difficulties and eye irrigation, it is wise to reduce the duration of outdoor activities.

Particulate matter concerns all particles in the air smaller than 10 micrometres. Particulate matter comes from traffic, livestock farms, combustion processes (e.g. industry).

5 Responses to “Smog Back in Bangkok”

  1. Robert says up

    And what is/are the PM 2,5 safe value(s)?

    • Tino Kuis says up

      There is never a truly complete 'safe value' for these types of things, just like for smoking. The WHO says PM 2.5 (most dangerous) should not exceed an annual average (because that is what it is about, not a high value just once) of 25. Thailand maintains 50.

      For PM10 there is an annual average limit value of 40 µg/m3 that may not be exceeded and there is a 50-hour average limit value of 3 µg/m35 that may not be exceeded more than XNUMX times per year.

      The annual limit value is rarely exceeded in the Netherlands. The 2018-hour average limit value is mainly exceeded in the vicinity of livestock farms (calculations NSL, XNUMX).

      For PM2,5 the annual average limit value is 25 µg/m3. This is already being met in the Netherlands. In addition, there are standards for (reducing) the average concentration at urban background locations

      https://www.samenmetenaanluchtkwaliteit.nl/fijn-stof-pm25pm10

    • Rob V says up

      According to the WHO, up to 25 particles are safe, Thailand sets the limit at 50… (if you cannot meet the limit, adjust the limit?).

      Current values ​​can be found here:

      - http://aqicn.org/city/thailand/

      Lake:
      - https://www.thailandblog.nl/nieuws-uit-thailand/luchtkwaliteit-in-chiang-mai-slechtste-ter-wereld/
      - https://www.thailandblog.nl/lezersvraag/duizenden-thai-ziek-door-ernstige-smog-in-het-noorden/

  2. fred says up

    Apart from urging people to wear a useless mask, nothing will happen. Money first, the rest is secondary.

    • Rob V says up

      A good dust mask helps. But then you must have the right mask (filters come in different sizes) and it must fit properly on the face. In previous reports we read that people regularly wear the wrong type of dust mask and that even with the right mask, in practice there is almost never a perfectly tight fit. A gap between the mask and the skin and your mask is no longer useful. So many of the masks on the street are indeed useless.

      As useless as spraying water from tankers and from tall buildings and so on. Looks nice, but is no more than symbolic politics. Only the large dust particles float to the ground, not the harmful PM 2.5 particulate matter.

      But if you really take measures to tackle traffic, industry, construction, agriculture, etc., there will soon be angry farmers on your lawn (behind the Grand Palace is a nice lawn, สนามหลวง, Sanaam Loewang) or they will drive a door out of your parliament or provincial house, shouting something angrily about the climate mafia and stuff. And Thailand is not so keen on allowing demonstrations…

      - https://eenvandaag.avrotros.nl/item/hoe-een-mondkapje-tegen-smog-werkt-in-new-delhi-en-niet-in-nederland/
      - http://www.china.org.cn/environment/2014-05/13/content_32367666.htm


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