DOI: 10.1016/j.atmosres.2018.07.006
Scopus记录号: 2-s2.0-85049744215
论文题名: Characteristics of trace elements in PM2.5 and PM10 of Chifeng, northeast China: Insights into spatiotemporal variations and sources
作者: Hao Y. ; Meng X. ; Yu X. ; Lei M. ; Li W. ; Shi F. ; Yang W. ; Zhang S. ; Xie S.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 213 起始页码: 550
结束页码: 561
语种: 英语
英文关键词: metals
; PM10
; PM2.5
; Source apportionment
; Trace elements
Scopus关键词: Air quality
; Coal
; Coal dust
; Coal mines
; Copper smelting
; Factorization
; Industrial emissions
; Iron
; Lead smelting
; Metals
; Particles (particulate matter)
; Suspensions (fluids)
; Trace elements
; Zinc smelting
; Crustal elements
; Elemental concentrations
; Metallurgy industry
; PM10
; PM2.5
; Positive Matrix Factorization
; Source apportionment
; Spatio-temporal variation
; Coal combustion
; air quality
; concentration (composition)
; metal
; particulate matter
; source apportionment
; spatiotemporal analysis
; trace element
; Chifeng
; China
; Nei Monggol
英文摘要: Trace elements in atmospheric particular matter play a significant role in controlling aerosol behavior, and can thereby endanger air quality. Here, the comprehensive investigation on the elemental characteristics and sources in fine and coarse particles at Chifeng was presented. The daily samples of particular matter (PM2.5 and PM10) were collected at six sites for a one-year period, and concentrations of 19 elements were analyzed. Results showed that Al, K, Ca, Fe were the most concentrated elements, in both PM2.5 and PM10. The crustal elements mainly in coarse particles (PM2.5–10) presented higher levels during March to May, due to the increased dust suspension in springtime. The highly enriched elements as Pb, Cd mainly in fine particles (PM2.5) presented elevated levels in cold seasons, related to the increased emissions of coal combustion for heating. Site Songshan had significantly higher Pb, As, Cd levels, ascribing to the influence of coal mining. The influences of metallurgy industries on Fe, Cu, Zn levels in both size fractions were also observed. Positive matrix factorization (PMF) identified four common sources for trace elements in both fine and coarse fractions, namely fugitive dust, coal mining, a mixed industrial factor with iron and zinc, and copper smelting. The factors of coal combustion, biomass burning, oil combustion, vehicle emission and fireworks were merely obtained for fine particles. The crustal elements were mainly related to the impact of fugitive dust, while the notable impacts of coal combustion and iron/steel production were also confirmed. Cu was attributed to copper smelting in both sizes, while the major sources of Zn varied from vehicle emission (44.3%), coal combustion (32.1%) in PM2.5 to mixed industrial factor (89.3%) in PM2.5–10. Although coal combustion, coal mining and copper smelting contributed <20% of the total elemental concentrations, they were responsible for >80% of the toxic elements Pb, As, Cd. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108770
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: College of Environmental Sciences and Engineering, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Peking University, Beijing, 100871, China; Environmental Monitoring Station, Chifeng Municipal Environmental Protection Bureau, Chifeng, Inner Mongolia 024000, China; Advanced Standards Technical Service Co., Ltd, Beijing, 100093, China
Recommended Citation:
Hao Y.,Meng X.,Yu X.,et al. Characteristics of trace elements in PM2.5 and PM10 of Chifeng, northeast China: Insights into spatiotemporal variations and sources[J]. Atmospheric Research,2018-01-01,213