The ambient air quality report for June 2021 presented the results of air quality measurements in various areas, including Wat Takuan, Trok Yai Cha, PTT Housing, and Wat Mab Chalood. Measurements were conducted for Total Suspended Particulate (TSP), Particulate Matter less than 10 microns (PM10), Sulfur Dioxide (SO2), and Nitrogen Dioxide (NO2) throughout the month.
The 24-hour average measurements for Total Suspended Particulate (TSP) in June 2021 showed that all stations consistently recorded values below Thailand's standard of 330 micrograms per cubic meter. Similarly, the 24-hour average PM10 values were below the standard of 120 micrograms per cubic meter throughout the month.
Regarding the hourly average Sulfur Dioxide (SO2) measurements, the values recorded at all stations throughout June 2021 were clearly below Thailand's standard of 300 parts per billion (ppb).
For hourly average Nitrogen Dioxide (NO2), measurement results from all stations in June 2021 also indicated that values were below Thailand's standard of 170 parts per billion (ppb) throughout the reporting period.
In summary, the ambient air quality monitoring report for June 2021 showed that all types of air quality values measured at all stations were within the standards stipulated by Thai law throughout the month. Further details can be found in the attached file.