Shukla Vertika, Upreti D K
Lichenology Laboratory, National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India.
Environ Monit Assess. 2009 Feb;149(1-4):1-7. doi: 10.1007/s10661-008-0225-6. Epub 2008 Feb 8.
The distribution and origin of polycyclic aromatic hydrocarbons (PAHs) in the lichen, Phaeophyscia hispidula (Ach.) Essl., collected from nine different road crossings of DehraDun, capital city of Uttaranchal (Garhwal Himalayas) were studied. The origin of PAHs was also assessed using the Phe/Ant, Flu/Pyr, Ant/Ant+Phe, Flu/Flu+Pyr and Naph/Phen concentration ratios. The total concentration of 16 PAHs ranged from 3.38-25.01 mug g(-1) with an average concentration of 12.09 +/- 9.38 (SD). The PAH ratios clearly indicates that PAH were of mixed origin, a major characteristic of urban environment. Significantly higher concentration of phenanthrene, pyrene and acenaphthylene indicates road traffic as major source of PAH pollution in the city. The study establishes the utility of P. hispidula as an excellent biomonitoring organism in monitoring of PAH from foot hill to sub temperate area of the Garhwal Himalayas.
对从北阿坎德邦（加瓦尔喜马拉雅地区）首府德拉敦九个不同道路交叉点采集的地衣——糙皮褐梅衣（Phaeophyscia hispidula (Ach.) Essl.）中多环芳烃（PAHs）的分布和来源进行了研究。还使用菲/蒽、芴/芘、蒽/蒽+菲、芴/芴+芘和萘/菲浓度比评估了多环芳烃的来源。16种多环芳烃的总浓度范围为3.38 - 25.01微克/克，平均浓度为12.09±9.38（标准差）。多环芳烃的比例清楚地表明多环芳烃来源混合，这是城市环境的一个主要特征。菲、芘和苊烯的浓度显著较高，表明道路交通是该市多环芳烃污染的主要来源。该研究证实了糙皮褐梅衣作为一种优秀的生物监测生物在监测加瓦尔喜马拉雅山从山麓到亚温带地区多环芳烃方面的效用。
