A Novel and Simpler Approach for Ranking of Indoor Air Pollutants.

Abstract

The Urban Indoor Air Quality is one of the major environmental health concerns in the global scenario, with the indoor pollution levels higher in both private and public indoor spaces than outdoors, in addition to contribution from outdoor sources. As there are about more than hundred Indoor Air Chemical pollutants, the availability of data on exposures, their toxicity levels and associated health risks is extremely variable, thereby making the ranking process highly cumbersome. The situation hence warrants a ranking of indoor chemicals, which is easy to comprehend and adapt as well. In the present study, the research envisages five sequential steps sensitizing priority wise classification to develop the final ranking. The methodology included frequency assessment in terms of source prevalence, frequency of emissions, health impacts, and risk-based concentration versus existing Indoor Air Quality standards and carcinogenicity classification.