State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, People's Republic of China.
Environ Pollut. 2013 Oct;181:301-14. doi: 10.1016/j.envpol.2013.05.055. Epub 2013 Jul 5.
Aerosol-phase humic-like substances (HULIS) have received increasingly attention due to their universal ambient presence, active participation in atmospheric chemistry and important environmental and health effects. In last decade, intensive field works have promoted development of quantification and analysis method, unearthed spatio-temporal variation, and proved evidence for source identification of HULIS. These important developments were summarized in this review to provide a global perspective of HULIS. The diverse operational HULIS definitions were gradually focused onto several versions. Although found globally in Europe, Asia, Australasia and North America, HULIS are far more typical in continental and near-ground aerosols. HULIS concentrations varied from <1 μg/m(3) to >13 μg/m(3), with their carbon fraction making up 9%-72% of water soluble organic carbon. Dominant HULIS source was suggested as secondary processes and biomass burning, with the detailed formation pathways suggested and verified in laboratory works.
气溶胶相腐殖质类似物质(HULIS)由于其普遍存在于环境中、积极参与大气化学以及对环境和健康的重要影响,受到了越来越多的关注。在过去的十年中,大量的实地工作促进了其量化和分析方法的发展,揭示了时空变化,并为 HULIS 的来源识别提供了证据。本综述总结了这些重要的发展,为 HULIS 的全球视角提供了参考。不同的 HULIS 操作定义逐渐集中在几个版本上。尽管 HULIS 在欧洲、亚洲、澳大拉西亚和北美洲都有发现,但它们在大陆和近地面气溶胶中更为典型。HULIS 浓度从<1μg/m(3)到>13μg/m(3)不等,其碳部分占水溶性有机碳的 9%-72%。二次过程和生物质燃烧被认为是 HULIS 的主要来源,其详细的形成途径在实验室工作中得到了提出和验证。