超细颗粒物的污染行为与毒性效应研究

Research on the Pollution Behavior and Toxic Effects of Ultrafine Particulate Matter

作为大气中成分复杂、性质多样以及危害极大的一类污染物,颗粒物带来的环境污染和健康问题越来越受到各国政府、公众和学者的关注。超细颗粒物(UFPs)的粒径更小,比表面积巨大,容易吸附更多的有毒有害物质,致病性影响更为显著。阐明UFPs对健康影响的毒理学机制已成为目前大气污染控制和风险评估的关键科学问题。本论文主要从UFPs的来源、粒度分布、成分等方面对颗粒物的污染行为和毒性效应进行了系统分析,这为大气颗粒物的环境风险评估和大气污染控制提供了重要参考依据。

Particulate matter is one of the greatest harmful pollutants with complex composition and diverse lbrms in the atmosphere. It has become more of a focus for the harmful effects on humans and ecosystems. Since the ultrafine panicles （UFPs） have smaller panicle sizes and larger surface area than fine particles, they could pose significant threats to humans by absorbing more potentially harmful substances. It has become one of the crucial problems to clarity, their toxicology mechanism during the air pollution control and risk assessment. In this paper, we determined the environmental behavior and toxic effects of UFPs from the sources, size distribution and composition. This work provides important data for the environment risk assessment and air pollution control of panicles,