Assessment of air pollution elements concentrations in Baghdad city from periods (May-December) 2010.

Air pollution in developing countries has recently become a serious environmental problem, which needs more active air quality monitoring and analyses. To assess air quality characteristics over the city of Baghdad. temporal variations in CO, NO, NO₂, NOX, O₃, SO₂ and PM₁₀ Concentrations measured between May-December 2010 (245 days), at period from 8:00-16:00 daily hour from location called ALJadriyah station (44.1E -33.3N, 38.5m above sea level). From diurnal variability of these concentration, we see high daily values of CO and CH₄ 3.25, 1.9 PPM at November while NO_X record 0.23 PPM at December that consider as highest daily value. While other pollutant concentration don't have large variation have 0.14-0.18 PPM. Particular matter at 10um (PM₁₀) have 1.6g/m₃ at 21/7/2010. At winter season and specifically at December month, there is good relation between the hourly concentration of PM₁₀ and other chemical pollutant concentration such as CO,SO₂, NO, NO_X this can be putting by correlation coefficient r =0.7-0.5. The monthly mean concentration of pollutant CO, NO_X, CH4, NO, NO₂ recorded high value at August Month. While O₃ have large mean concentration in November, while PM₁₀ have large monthly mean concentration at June and July months where there is most frequent dust-storm events. High concentration and its frequency distribution shifts towards large values concentrated at summer seasons June, July, Aug. about 0.25-1.25 PPM and have frequency percent about 82.6%. In winter the frequency distribution shifts towards large values of O₃ even above 61.2% in range 0.085- 0.105 PPM. Regarding the frequency distribution of SO₂ all season where shifts towards lower except spring (May) 88.2% at range concentration 0.025-0.125 PPM. Nitrate oxide have different concentration an frequency at several season but NO_X have large frequency at summer, other pollutant concentration CH₄ and PM₁₀ have high concentration frequency at this period. [ABSTRACT FROM AUTHOR]