Study of radioactive aerosols and their attachment in indoor environment

Enhancement in aerosol concentration level is a big concern from last few decades. Especially radioactive aerosol concentration in atmosphere triggers to total human health hazards because maximum occupation time of the population is in indoor environment. Therefore study of indoor environment is more essential for the investigation of health hazards. Effective dose for different human organs (i.e. lungs, kidney, red bone marrow, liver and spleen) changes with aerosol particle size (Porstendorfer; 2001) and different interaction process of radioactive aerosols with the other aerosols in environment (attachment and cluster formation etc.) can change the size of these particles. Therefore,in this work we investigate the attached and unattached fraction of these radioactive aerosols and the factors which are affecting to this attachment like number concentration, size distribution of aerosol, turbulence of the air, pressure and humidity are also investigated. (author)