[Study on air pollutants and their effects]

ABSTRACT

In this study, the agents and reasons for increases in gases [CO, SO[2] and No[2]] and suspended particles which pollute the air were scrutinized. Increases in the mentioned substances are found mainly urban areas where there is an imbalanced growth of population and construction and heavy traffic of vehicles. Kabul is among the cities which have the highest level of air pollution. Upon study of gases and suspended particles in the air, it may be deduced that anlo1,lg the gases comprising the air, increases in CO, SO[2] and No[2] and suspended particles cause air pollution. Kabul City has significant levels of such pollutants [PM10, PM2.5] 261[micro]g/m[3], NO[2] = 24 [micro]g/m[3] and SO[2] 37 [micro]g/m[3]. The above figures exceed the norms accepted by the WI-I0 concerning air pollution. The main causes for increases in suspended particles and gases polluting the air are dust, exceedingly high level of vehicles movement, and use of old tires, rubber and used vehicle oil as fuel