Global Science and Technology Journal
Vol. 4. No. 1., September 2016, Pages: 58 – 72
Level of Gaseous Pollutants, Particulate Matters and Lead: The Case of Roof Top of Dhaka Buildings The aim of the study was to find out the level of pollutants at the roof of a seven-storied building and the values were compared with ground level pollutants. The gaseous pollutants (SO2, NO2 and O3), particulate matter (2.5 and 10 micron) and lead in SPM were determined by UV-visible, AAS spectrophotometer and gravimetric methods respectively. For all the criteria pollutants, the concentration of pollutant was lower than ground level at Kallyanpur, Dhaka and also lowers than Bangladesh acceptable limit (DOE). High rise buildings are considered to be greener with lesser amounts of pollutant compared to ground level.