Level of some chemical pollutants in Muna's atmosphere during Hajj season of 1413 H (1993 G)
Titel:
Level of some chemical pollutants in Muna's atmosphere during Hajj season of 1413 H (1993 G)
Auteur:
Badawy, Mohamed I. Al-Samady, Abd. El. Hady E.
Verschenen in:
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
Paginering:
Jaargang 31 (1996) nr. 6 pagina's 1331-1344
Jaar:
1996-07
Inhoud:
Monitoring programme was conducted in Muna valley during Hajj season of 1413 H (1993 G). The concentration of some gases such as CO, CO2, NOx, O3, and NH3, were measured. It was found that the concentration of NOx ranged between 100 and 245 μg/m3. These levels are higher than the permissible limits and could produce adverse health effects and production of significant concentration of photochemical oxidante. However, the concentrations of carbon monoxide never exceed the WHO ambient air quality standard of 35 ppm. The highest concentration detected was 25 ppm. The results of the present study demonstrated that the atmosphere over Muna valley was polluted with airborne suspended particulate, ASP and its concentration ranged between 282 and 615 μg/m3 These levels exceeded the permissible limits (80 μg/m3). Also, the residues of lead, total hydrocarbons and polyaromatic hydrocarbons in ASP were investigated.
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