Seasonal Variations of Air Pollutants Concentrations within Baghdad City

Abstract

Air pollution is increased significantly nowadays due to variousindustrial activities and car combustion emissions. In this work, data have beencollected from Al-Jadrya Monitoring Station (JMS). The effects of seasonalvariation on the pollutants concentration were examined. Furthermore,relations of nitrogen oxides concentrations (NOx) were assessed during the firsthours of the working days. Three randomly days from each of January,February, July and August have been taken to represent winter and summerseasons, respectively. It has been found that concentrations of all examinedpollutants have not exceeded the acceptable limits. However, nitrogen oxides(NOx) seem to be effected by seasonal variation where its concentration hasincreased in June and August of the summer season. The concentrations of otherpollutants (SO2, CO, PM) have not been influenced by seasonal variations, andthey depend on the gaseous source emissions at different times of the year.Hourly monitoring for nitrogen oxides (NOx) concentration showed increasingin concentrations during the summer season, especially in the early hours of theworking days.

Keywords

• air pollution
• temperature
• so2
• co
• nox
• pm