The Influence of Meteorological Parameters on Respirable and Inhalabe Particle During wet Season

Air Pollution is a problem because human activities threaten to overload the atmosphere with wastes beyond the ability of wind and weather to disperse and dilute these pollutants. An effective air resources management program must take into account, the effects of meteorological parameters on transport and dilution and the natural cleansing processes of the atmosphere. Particulate pollutants tend to coagulate, increase in size and fall to earth. Thus coarse or inhalable particulates generally cause air pollution problems of a localized nature. However, lighter particulate and gaseous pollutant are influenced by action of atmospheric diffusion and may be carried to great distances from their sources of origin. Any study of air pollution should include a study of the weather patterns (meteorology) of the local area because the fate of air pollutants is influenced by the movements and characteristics of the air mass into which they are emitted. The main concentration of respirable suspended particulate matter was 104.17 \u2013 260.42 and the inhalable suspended particulate matter was in a range of 104.17 - 434.03. The correlation of inhalable and respirable suspended particulate matter was good and positive (r = 0.73.); And the correlation of respirable and inhalable fraction with wind speed and temperature were positive while with relative, humidity were negative. The spatial distribution of inhalable and respirable were significant and remarkable (P<0.05)

Analysis of respirable and inhalable particle in Obaretin during dry season

Application of effective abatement plan to curtail particulate matter is only conceivable when the emission sources have been uniquely identified and characterized. SKC high volume gravimetric sampler Model 210-5000, serial no 20537 and respirable foam were used to capture the respirableparticle and the inhalable particle at five different locations in Obaretin between December 2008 to April 2009. The foam and the glass fibre filter were analyzed for trace metals (NI, Cr, Zn, Co, Fe, Mn, Cu, Pb and Cd) by using Atomic Absorption Spectrophotometric, (AAS). From the analysed trace metals Ni and Co were below detection limit and the trace metal Cd was moderately enriched. The total mean concentration values of the analyzed trace metals for inhalable particle (Fe: 1.70ssmg/m3 , Zn:0.0532mg/m3, Cu:0.1370mg/m3, Mn:0.034mg/m3, Cd:0.04452mg/m3, Pb: 0.15226mg/m3, Cr: 0.0070mg/m3). Trace metals in respirable particles, the total mean concentration values of the analysed trace metals are: (Fe: 1.4536mg/m3, Zn:0.0456mg/m3, Cu:0.1206mg/m3, Mn:0.1130mg/m3, Cd:0.2098mg/m3, Pb:0.13560mg/m3, Cr: 0.10000mg/m3) Ni and Co were below detection limit. The spatial distribution were insignificant (P>0.05). The values obtained in this study violated the available WHO limit and fell within the purview of OSHA limit

Chemical composition of Total Suspended Particulate matter (TSP) in obaretin

Particulate matter was captured from five different sites in Obaretin, Ikpota-Okha LGA of Edo State using SKC Air Check gravimetric sampler Model 21-5000 serial no 20537 and a glass fiber filter between the months of December 2008 and April 2009. The glass fiber filters were analyzed for nine trace metals – Fe, Cu, Zn, Cd, Mn, Pd, Ni, Cr and Co (by Atomic Absorption spectrophotometric (AAS). The data obtained were subjected to factor analysis. The mean concentration of the various elements were: Fe2.56mg/m3; Zn 0.034mg/m3; Cu 0.1mg/m3; Mn 0.166mg/m3; Cd 0.0404mg/m3; Pb 0.19mg/m3; Cr 0.1mg/m3. While the concentration of Ni and Co were below detection limits. The concentration of the trace metals obtained in this study fell within the purview of the occupational health and safety standard but higher than WHO limit. The element Cd was moderately enriched, when Fe was used as a reference element. Two components were obtained from the principal component analysis.Running Title: Constituents of Aerosol Captured in Rural Community.Keywords: Trace metals, Enrichment Factor, Atomic Absorption Spectroscopy, Total Suspended Particulate Matter, Rural are