DTH not only take up the monitoring of ambient air in normal urban conditions but also takes the challenges of conducting these assignments in adverse condition of Himalayan ranges and extremely rural areas of different part of the country.

There are several types of Air pollution and well-known effects of pollution; some are smog, acid rain, the greenhouse effect, and "holes" in the ozone layer. All these conditions have serious implications for our health and well being as well as for the whole environment.