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City dust levels up slightly

Smog blankets Bangkok on Tuesday morning. (Photo by Chanat Katanyu)

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Fine dust levels have risen slightly in greater Bangkok, but Bang Khen district of the capital was the only area with a hazardous reading, the Pollution Control Department reported on Tuesday morning.

The levels of PM2.5 ranged from 18 to 55 microgrammes per cubic metre of air in the past 24 hours in greater Bangkok. Thailand has set the safety threshold at 50mcg.

The lowest level was on Phetkasem Road in Phasicharoen district of Bangkok and the highest on Phahon Yothin Road in Bang Khen.

The department expected PM2.5 levels to drop on Wednesday.

The morning report said road cleaning and enforcement of controls on vehicles emitting black exhaust smoke continued. On the first three days of this month, officials banned the use of 161 vehicles and required the improvement of 72 others for excessive emissions.

The Bangkok Metropolitan Administration said it installed sprinklers to reduce fine dust at all its schools and hospitals except five schools where it was physically impossible.

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