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ISSN : 2456-8643

Title:
HUMAN HEALTH IMPLICATIONS OF OUTDOOR AIR POLLUTION BY POLYCYCLIC AROMATIC HYDROCARBONS IN ALEXANDRIA CITY, EGYPT

Authors:
Ashraf A. Zahran*, Alaa R. Mostafa , Nermine M. Foda , Mohamed Y. Omar and Maram O. Nadry ,Egypt

Abstract:
In this study, two receptor models [factor analysis/multiple linear regression (FA/MLR) and positive matrix factorization (PMF)] were applied seasonally to investigate the source apportionment of Polycyclic aromatic hydrocarbons (PAHs) in the atmospheric environment of Alexandria, and a lifetime cancer risk was assessed. ?35(particle) PAHs concentrations varied from 343.68 ng/m3 to 7847.9 ng/m3 in summer, from 532.68 ng/m3 to 1942.4 ng/m3 in Autumn, from 317.17 ng/m3 to 4433.25 ng/m3 in Winter and from 551.7 ng/m3 to 2987 ng/m3 in spring. PAH concentrations at the industrial sites were significantly higher than at the traffic and residential sites during the winter season (p < 0.001). Summer PAH concentrations were significantly higher than the winter season at the traffic sites (p = 0.027). Results obtained from the two receptor models were comparable. Vehicle emissions and combustion are the main sources of pollution. Overall, PMF afforded better source identification than did FA/MLR. The lifetime cancer risk assessment showed that incremental lifetime cancer risks (ILCRs) were greater than the acceptable level of 10_6 through dermal and ingestion routes at all the investigated sites and through the inhalation route at the industrial and traffic sites only. So, the government should focus its attention and regulations on corrective actions to protect the public against the hazards of air pollution

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