Author:
Li Yingquan,Zhao Baowei,Duan Kaixiang,Cai Juexian,Niu Wujiang,Dong Xiao
Abstract
The chemical features of atmospheric dustfall and topsoil in the same region could reflect the processes of the migration, transport, and diffusion of pollutants in the atmospheric-soil system. Samples of atmospheric dustfall and topsoil were collected in Lanzhou City. The contents and correlation of water-soluble inorganic ions (WSIIs) and heavy metals in dustfall and topsoil were analyzed, the sources of heavy metals and WSIIs in dustfall were distinguished, and the potential ecological risks of heavy metals in dustfall and topsoil were evaluated. The highest contents of WSIIs are SO42− (18,594 mg·kg−1) and Ca2+ (10,070 mg·kg−1) in dustfall, and for SO42− (8271 mg·kg−1) and Na+ (1994 mg·kg−1) in topsoil. The concentrations of heavy metals (Pb, Cu, Zn, Cr, Cd, and Ni) in dustfall are considerably higher than those in topsoil. Combustion of biomass and coal, transportation and industrial activities are the major anthropogenic sources of WSIIs and heavy metals in Lanzhou. Pollution of heavy metals except Cr and Ni in dustfall, and Cu, Cr, and Ni in topsoil was up to different degrees, where the pollution of Cd was serious. The risk of Cd in dustfall is high while moderate in topsoil. This research could offer a reference for the atmospheric particle pollution prevention and control in Lanzhou.
Subject
Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Particle Size, Effects of Distance and Height from Source, Carbon Components, and Source of Dust in Nanchang, Central China;Atmosphere;2024-01-21
2. Hidden hazards in urban soils: A meta-analysis review of global heavy metal contamination (2010-2022), sources and its Ecological and health consequences;Sustainable Environment;2023-12-19
3. Differences in particulate matter retention and leaf microstructures of 10 plants in different urban environments in Lanzhou City;Environmental Science and Pollution Research;2023-09-09
4. Evaluation of Some Heavy Metals, Their Fate and Transportation in Water, Sediment, and Some Biota within AL-Musayyib River, Babylon Governorate, Iraq;Baghdad Science Journal;2023-04-01
5. Temporal variation of heavy metals in sewage sludge in typical cities in Gansu Province, northwest China;Environmental Monitoring and Assessment;2023-03-09