Hassanien Mahmoud A, Abdel-Latif Nasser M
Air Research and Pollution Control Department, Environmental Protection Research Division, National Research Centre Dokki, El Thahrier street, Cairo, Egypt.
J Hazard Mater. 2008 Feb 28;151(1):247-54. doi: 10.1016/j.jhazmat.2007.05.079. Epub 2007 Jun 2.
Road dust samples were collected during 2005 and polycyclic aromatic hydrocarbons (PAHs) were determined. Sites under investigation were selected to represent the different parts of Greater Cairo, Egypt. Estimation and spatial distribution pattern of PAHs in road dust were the main objectives of this study. The road dust samples were collected from 17 sites over greater Cairo. The concentration of PAHs was determined by using HPLC technique. Twelve common environmental PAHs were found to be distributed. The present data illustrated that the total average of PAHs over the investigated sites was ranged from 0.045 to 2.6 mg/kg. On individual scale, the highest concentrations were 1.031 and 1.028 mg/kg for pyrene and phenanthrene, meanwhile the lowest was benzo(a)pyrene with value 0.0001 mg/kg. The obtained results showed that the carcinogenic content of PAHs (naphthalene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene and benzo(a)pyrene) ranged from 0.8 to 46.6% of total PAHs. It has been concluded from the present work that PAHs concentrations are greater and closer to traffic routes and industrial activities.
在2005年期间采集了道路灰尘样本，并测定了多环芳烃（PAHs）。所调查的地点是为了代表埃及大开罗的不同区域而选定的。本研究的主要目标是估计道路灰尘中多环芳烃的含量及其空间分布模式。从大开罗的17个地点采集了道路灰尘样本。使用高效液相色谱技术测定了多环芳烃的浓度。发现有12种常见的环境多环芳烃分布其中。目前的数据表明，在所调查地点多环芳烃的总平均含量在0.045至2.6毫克/千克之间。在个体层面上，芘和菲的最高浓度分别为1.031和1.028毫克/千克，而最低的是苯并(a)芘，其值为0.0001毫克/千克。所得结果表明，多环芳烃的致癌成分（萘、苯并(a)蒽、 Chrysene、苯并(b)荧蒽、苯并(k)荧蒽和苯并(a)芘）占总多环芳烃的0.8%至46.6%。从目前的工作可以得出结论，多环芳烃的浓度在靠近交通路线和工业活动的地方更高。
