We have a team of expertise for air quality testing. The New Ambient Air Quality Standard adopts 6 air pollutants criteria that includes 5 existing air pollutants which are particulate matter with the size of less than 10 microns (PM10), sulfur dioxide (SO2), carbon monoxide (CO), nitrogen dioxide (NO2), and ground level ozone (O3) as well as 1 additional parameter which is particulate matter with the size of less than 2.5 microns (PM2.5).