Monthly Air Quality Report for May 2019 (MAY 2019) presents the results of ambient air quality measurements at 4 locations: Wat Takuan, Thoed Thai Muslim, PTT Housing, and Wat Mab Chalood.
The 24-hour average measurements of Total Suspended Particulate (TSP) throughout May 2019 showed that all measured values were below the standard limit of 330 micrograms per cubic meter.
Regarding the 24-hour average measurements of Particulate Matter less than 10 micrometers (PM10) and the 1-hour maximum measurements of Sulfur Dioxide (SO2), all measured values were also below the standard limits of 120 micrograms per cubic meter and 300 ppb, respectively.
Similarly, the 1-hour maximum measurements of Nitrogen Dioxide (NO2) throughout May 2019 consistently showed values below the standard limit of 170 ppb. Further details are available in the attached file.