globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2019.117099
论文题名:
Chemical nature of zinc in size fractionated particulate matter from residual oil combustion - A comparative study
作者: Pattanaik S.; Huggins F.E.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 221
语种: 英语
英文关键词: Aerodynamics ; Biochemistry ; Combustion ; Extraction ; Fly ash ; Particles (particulate matter) ; Solubility ; Sulfur compounds ; Toxicity ; X ray absorption spectroscopy ; Aerodynamic diameters ; Ambient particulate Matter ; Biological mechanisms ; Coarse particulate matter ; Fine particulate matter ; Residual oil ; Selective extraction ; Zinc speciation ; Zinc sulfide ; ferric hydroxide ; sulfur ; zinc ; zinc phosphate ; zinc sulfate ; ambient air ; chemical analysis ; combustion ; comparative study ; fly ash ; fractionation ; induced response ; mortality ; particulate matter ; solubility ; speciation (chemistry) ; X-ray spectroscopy ; zinc ; Article ; ash ; combustion ; comparative study ; extended X ray absorption fine structure spectroscopy ; particulate matter ; priority journal ; X ray absorption spectroscopy
学科: Coarse particulate matter ; Fine particulate matter ; Residual oil combustion ; Solubility ; X-ray absorption spectroscopy ; Zinc speciation
中文摘要: Although zinc is ubiquitous in ambient particulate matter (PM), exposure to size fractionated residual oil fly ash (ROFA) PM is of particular concern due to several studies implicating particle zinc in mortality, adverse respiratory and cardiac effects. The lack of zinc speciation data is an impediment to our understanding of the biological mechanism of Zn induced toxicity. ROFA PM2.5+ samples (i.e. particle with aerodynamic diameter >2.5 μm) are prepared in a small 732 kW practical fire tube boiler by combusting one No. 5 and three No. 6 residual oil(s) of varying sulfur and ash contents. The combined X-ray absorption spectroscopy and selective extraction method is used to determine the Zn speciation in PM2.5+ samples. The Zn speciation in ROFA PM2.5 (i.e. particle with aerodynamic diameter <2.5 μm) samples, reported earlier, is included here for comparison purposes. The data show that zinc sulfate is predominant in both fractions. In addition, an appreciable amount of zinc phosphate was detected in the PM2.5 fraction. The insoluble zinc forms in both the fractions are identified as Zn-sorbed-ferrihydrite and zinc sulphide. The variation of Zn speciation across different size fractions has implication on the bioavailability and toxicity of Zn. Such source specific speciation data are needed for developing source inventories, and for amending existing regulations/framing new regulations for different size fractions. © 2019 Elsevier Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160653
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Applied Physics, Ballistics Department, F. M. University, Balasore, 756 019, India; CFFS/CMS, University of Kentucky, Lexington, KY 40506, United States

Recommended Citation:
Pattanaik S.,Huggins F.E.. Chemical nature of zinc in size fractionated particulate matter from residual oil combustion - A comparative study[J]. Atmospheric Environment,2020-01-01,221
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Pattanaik S.]'s Articles
[Huggins F.E.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Pattanaik S.]'s Articles
[Huggins F.E.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Pattanaik S.]‘s Articles
[Huggins F.E.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.