Zbornik radova

ABSTRACT AIR POLLUTION IN VALJEVO Commune of Valjevo is becoming a degraded area in Vest Serbia as a resuit of increasing industrial development and urbanistion. This study, which is based on analysis, talks about the current sitution of endangering the local environment. It imposes the need to find Solutions for the protection, mqaintenance and improvment of the enviroment in this region. The conclusions are based on comparative physical, chemycal and biological researches, meteorologycal measurments and statistical calculalions. The polluters (SQ2 and smoke) along wilh the meteorologycal elements (temperature, air humidity and wind) were measured in the Central meteorologycal station in Valjevo during the pcriod between 1983-1992. The laboratory analysis of the smoke and SQ2 were carried out by Standard acidimetric and refrectrometnc hydrogen-peroxide melhod. The chemycal research included the quantitative and qualitative determination of the air polluters. The biological research included the polluters’ influence on the inhabitants’ health. According lo the results in whole there are two pcriods that stand out: wmter, when the level of pollution is higher, and summer whcn that level is lower. The temperature course is in inversal propontionality lo the pollution. When the weather is hot, the concentracion of polluters is lower, and vice versa. The annual course of air humidity is in accordance wilh the air pollution. The wind does the air filtering. The sources of pollution are great in nummber, and the most dangerous among thcm are motor cars. The quantity of poisonouns substances which comc lo the air from motor cars is very large. AU this has influence on the chronie respiration illness patients, the nummber of which ammounts day by day. Considering ali that, the conclusion cuold bi that the area is highly polluted. In order lower the present levelof pollution a lot of eforts should be made.

49