期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：6
页码：1787-1796
出版社：University of Mohammed Premier Oujda
摘要：In Morocco, air pollution is mainly due to road traffic and industrial sources. Until today, only standard gases such as NO, NO 2 CO, SO 2 and O 3, as well as PM 10 , are continuously monitored in the Moroccan large cities. VOC measurements are very rare. This paper presents for the first time the results of measurement campaigns of BTX in a small town with industrial character, Anza locality, located 7 km northwest of the city of Agadir (southwestern Morocco). The BTX measurements were conducted from February 2012 to November 2012. Benzene, toluene, and the three isomers of xylene were quantified in ambient air in four places carefully selected to reflect the main activities in the city. The outdoor average concentrations of benzene, toluene and xylenes were 12.9 μg.m -3 , 36.9 μg.m -3 and 16.2 μg.m -3 respectively. No seasonal variation was observed. The fluctuation concentrations are attributed to starting up of the activities and variations flow of cars. The wind is the meteorological factor which drives the observed results. An important decrease of the BTX concentrations was observed in 2012 compared to the values obtained in 2007.
关键词：Atmosp heric pollution; Benzene; Toluene; Xylenes; Active samplers; Urban air quality; Anza; Morocco
