Posidonia oceanica as a Historical Monitor Device of Lead Concentration in Marine Environment

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• 作者：L. Tranchina ; S. Miccichè ; A. Bartolotta ; M. Brai ; and R. N. Mantegna
• 刊名：Environmental Science & Technology
• 出版年：2005
• 出版时间：May 1, 2005
• 年：2005
• 卷：39
• 期：9
• 页码：3006 - 3012
• 全文大小：156K
• 年卷期：v.39,no.9(May 1, 2005)
• ISSN：1520-5851

文摘

We show that Posidonia oceanica is able to reliablymonitor the variability of environmental lead (Pb). Weanalyze lead concentration measured in the scales andrhizomes of Posidonia oceanica collected in seven sitesalong the coasts of the Sicily island and subsequentlyfractioned them according to a lepidochronological analysis.We measure lead concentration in Posidonia oceanicatissues by using the flame atomic absorption spectrophotometry technique. We compare the measured leadconcentration with the estimated lead emission in air dueto the gasoline sold and used for combustion in carengines in Sicily. By computation of the Pearson cross-correlation coefficient, we show that lead concentration,which is measured in the scales of Posidonia oceanica, isstatistically correlated to lead emission in air and reflectsthe level of lead pollution in the coastal marine environment.