Green Audit

A Report on the Recent Ambient Air Quality Testing

Don Bosco College Tura is well known for providing the best quality education in the best possible setting that also includes good infrastructure and clean surrounding. The college is always on its heels in pursuit of achieving its goals and vision without compromising the quality whatsoever. After the recent ambient air quality testing conducted by the Meghalaya Pollution Control Board, the College has now joined the list of Colleges which have either been certified as Green Campuses or are on the way to achieving that status.

The College formally invited the Meghalaya Pollution Control Board to conduct the Ambient Air Quality Testing of the Campus and the Board promptly constituted a team of three scientists to conduct the requested test at the Campus. The Test was carried out on 12/03/2020. 

Summary of the Test Parameters and the Results:

General Weather condition

P Clear/Clear

Temperature (oC) Min: 18.3 Max: 31.4
Relative Humidity (%) Min: 49.6 Max: 55.7
Wind Speed (km/hr) Min: 1.7 Max: 9.8
Wind Direction (most prevailing) NE- SW
Rainfall (mm) Sum:


The Ambient Air Quality Testing Analysis Report:


Test Method

Permissible Limits     (24 hrs Average)

EPA Notification GSR 826(E), dated New Delhi, the 16th Nov. 2009

Sampling Station

Code /Name
College Premises
Particulate Matter (PM 10) (µg/m3) (24 hrs avg.) IS:5182 (Pt-23)
Particulate  Matter (PM 2.5) (µg/m3) (24 hrs avg.) EPA CFR-40 (Pt-50)

Sulphur Dioxide (SO2) (µg/m3) (24 hrs avg.)

IS:5182 (Pt-2)

Nitrogen Dioxide (NO2) (µg/m3) (24 hrs avg.)

IS:5182 (Pt-6)


Following the findings of the AAQ test conducted at the Campus of Don Bosco College Tura, now officially stands as an institution that has been certified to be within the permissible limits of National Ambient Air Quality Standards (NAAQS) as per EPA Notification GSR 826(E), dated New Delhi, the 16th Nov. 2009.

We feel proud that the College has been able to meet the requirements without any anomaly. The findings revealed that the presence of Sulphur Dioxide and Nitrogen Dioxide in the Campus was near negligible. Again, the particular matter content (microgram/cubic meters) are also well below the permissible limit. This further indicates that the college campus is fittest for students, staff, and faculty for better learning and living.