Laboratoire D'Hydrologie et de Géochimie de Strasbourg, Université de Strasbourg, EOST, UMR 7517 CNRS, 1 rue Blessig, 67084 Strasbourg cedex, France.
Chemosphere. 2012 Feb;86(6):641-7. doi: 10.1016/j.chemosphere.2011.11.008. Epub 2011 Dec 6.
The harmful effect of manmade particles on natural processes and human health is documented by a large number of studies showing a positive correlation between particulate matter (PM) concentration and health effects. Diminution of this health risk necessitates among others the precise knowledge of the particle sources, their physical and chemical properties and their dissemination in the environment. Pb isotope ratios have been successfully used during the past decades as tracers of anthropogenic Pb disseminated in the biosphere. Here we show that tree bark biomonitoring with lead (Pb), strontium (Sr) and neodymium (Nd) isotope ratios as tracers allow a thorough analysis of the impacts of industrial and other anthropogenic emissions on the urban environment. This is the first comprehensive multi-isotope tracer study of atmospheric pollution in an urban environment allowing to identify and to integrate the different plume paths of emissions in a digital map system. This innovative approach might become an important tool for environmental management and policy-making processes dealing especially with risks and surveillance of air quality in the urban environment.
大量研究表明，颗粒物（PM）浓度与健康影响之间存在正相关关系，证明了人为颗粒对自然过程和人类健康的有害影响。为了降低这种健康风险，除其他外，还需要准确了解颗粒源、它们的物理和化学特性以及它们在环境中的传播。在过去几十年中，铅同位素比值已成功用作在生物圈中传播的人为铅的示踪剂。在这里，我们表明，利用树皮生物监测中的铅（Pb）、锶（Sr）和钕（Nd）同位素比值作为示踪剂，可以彻底分析工业和其他人为排放对城市环境的影响。这是首次对城市环境大气污染进行的全面多同位素示踪剂研究，可用于识别和整合排放不同羽流路径在数字地图系统中。这种创新方法可能成为环境管理和决策过程的重要工具，特别是在城市环境中的空气质量风险和监测方面。
