黑碳对有机污染物环境行为的影响

Effect of Black Carbon on the Environmental Behavior of Organic Pollutants

黑碳是化石燃料及生物质不完全燃烧的产物,广泛分布于大气、水体、土壤、冰雪等环境介质中。鉴于黑碳在气候效应、大气质量以及人体健康等方面的重要影响,近几十年来引起了研究者的关注。本文综述了黑碳的来源、性质及其在多种环境介质中的浓度,并重点阐述了黑碳对有机污染物吸附及降解作用的影响,这有助于揭示黑碳在有机污染物环境归趋及其生物可利用性方面的重要作用,也可为全球气候变化和环境污染防治提供理论依据。

As a product of incomplete combustion of fossil fuels and biomass,black carbon is widely distributed in the environment,such as,air,water,soil,snow and ice. Given the important effects of black carbon in climate,air quality and human health,much attention has been paid on black carbon in recent decades. The sources,characteristics,and concentration of black carbon in various environmental media were reviewed,and focused on the impact of black carbon on the adsorption and degradation of organic pollutants,which revealed the fate and bioavailability of organic pollutants,and provided a theoretical basis for global climate change and environmental pollution prevention and control.