CHARACTERIZATION OF DRY DEPOSITION ASSOCIATED WITH FIRE IN PLASTIC SCRAP MARKET OF WEST DELHI

Samples of dry deposition were collected at National Physical Laborato ry during a fire incident occurred at Jwalapuri, a plastic scrap marke t located in west Delhi. About 2500 shops were gutted in this fire and almost 1/4(th) of the city was affected by the plume. The collected s amples were analyzed for Cl, NO3, SO4 and NH4. pH and Electrical Condu ctance of the samples were also measured. Data showed that deposition of Cl, SO4, NO3 was significantly higher than the normal conditions as reported earlier. It was estimated that respectively 21, 11, 16 and 0 .2 tones of Cl, SO4, NO3 and NH4 were deposited by dry removal process during this fire incident. Copyright (C) 1996 Elsevier Science Ltd