Dip. Scienze e Tecnologie, Università degli Studi del Sannio, Italy.
Chemosphere. 2013 Aug;92(9):1224-30. doi: 10.1016/j.chemosphere.2013.04.050. Epub 2013 May 25.
Concentrations of 12 elements (Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb and Zn) and 16 EPA-listed PAHs were detected in Quercus ilex leaves and the epiphytic moss Leptodon smithii collected at urban, periurban and extraurban holm oak stands, in two Italian Regions (Campania and Tuscany). Levels of environmental contaminants were generally higher in leaves and moss from urban areas than periurban and extraurban ones and samples from Campania had the highest PAH content. The epiphytic moss accumulated higher concentrations of trace elements than leaves and the latter showed a higher accumulation capability for PAHs, especially for those with low molecular weight. The different bioaccumulation in leaves and moss were explained in terms of their distinctive morphological and ecophysiological characteristics. The combined approach seems a promising tool for the monitoring of a wide range of pollutants in Mediterranean urban and extraurban environments.
在意大利的坎帕尼亚和托斯卡纳两个地区，研究人员分别采集了城市、城郊和远郊地区的栓皮栎叶片和附生苔藓柳叶白发藓，检测了其中 12 种元素（钙、镉、铬、铜、铁、钾、镁、锰、钠、镍、铅和锌）和 16 种 EPA 列出的多环芳烃的浓度。通常情况下，城市地区叶片和苔藓中的环境污染物含量高于城郊和远郊地区，且来自坎帕尼亚地区的样本中多环芳烃含量最高。与叶片相比，附生苔藓积累了更多的微量元素，而叶片对多环芳烃的积累能力更高，特别是对低分子量的多环芳烃。叶片和苔藓的不同生物累积可以用它们独特的形态和生理生态特征来解释。这种联合方法似乎是监测地中海城市和远郊环境中多种污染物的一种很有前途的工具。
