Bangkok's air quality dropped again Thursday with the Department of Pollution Control measuring system particles smaller than 2.5 microns (PM2.5) reaching 69-74 micrograms per cubic metre of air.
According to Thai safety standards, the safe level of PM2.5 is 50 micrograms.
The department said PM2.5 measurement at all five stations at 8.00am today in Bang Na, Wang Thong Larng, Intharapitak road, Rama IV road and Lard Prao showed they were between 69 and 94 micrograms, all exceeding the safety level of 50 micrograms per cubic metre.
It said air quality of Bangkok droppedsince the beginning of the week, and was worsened today after Bangkok was blanketed with heavy fog.
It said air quality with PM10 measurement at the level of 89-123 micrograms and considered hazardous to health were detected at Bang Sao Thong district of Samut Prakarn.
The department then advised people with respiratory sickness, heart and blood pressure sickness to wear hygienic masks when going outdoors, and all sectors to supervise all activities that could generate dusts, particularly using vehicles, burning and construction so as to help lessening the level of dust particles in the air.
It warned that the size of the particulate matter was so small that it could pass through lungs into the blood. PM2.5 was proven to cause many diseases, such as heart disease, respiratory diseases, allergies, and eye and skin irritation.
Source: Thai Public Broadcasting Service (Thai PBS)