Abstract

Air pollutants, including PM2.5, SO2, NOX and CO,were measured in Al-Hassan industrial estate (HIE) in IrbidGovernorate, 72 Km north of Amman. Data relating topollution in HIE has been collected from all sources that hadmeasured the level of pollution in this area during the periodfrom Nov.2010 to Nov.2011. The effects of local meteorologicalconditions were studied by statistical analysis. The main resultsof the study show that the gaseous pollutants levels monitoredwere low and no exceedances to the Jordanian standards limitof the ambient air no. 1140/2006 for NO2, SO2 and CO limits. Ithas, indeed, shown that PM2.5 levels exceeded the daily limitspecified in the Jordanian Standards. This might be attributedto the prevailing Khamasin winds, which become active inspring, especially between April and May, in addition to thehigh temperature and the low average of rainfall and the lack ofhumidity, thus helping the increase of the suspended air in theatmosphere.