DOI: 10.1016/j.atmosenv.2014.08.069
Scopus记录号: 2-s2.0-84906725401
论文题名: Free and combined amino acids in size-segregated atmospheric aerosol samples
作者: Di Filippo P ; , Pomata D ; , Riccardi C ; , Buiarelli F ; , Gallo V ; , Quaranta A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 98 起始页码: 179
结束页码: 189
语种: 英语
英文关键词: Allergies
; Bioaerosol
; Free amino acids
; PM ultrafine fraction
; Proteinaceous material
Scopus关键词: Allergies
; Atmospheric aerosols
; Particles (particulate matter)
; Proteins
; Sand and gravel plants
; Adverse health effects
; Bioaerosols
; Free amino acids
; Proteinaceous materials
; Reference material
; Ultra-fine particulate matters
; Ultrafine
; Urban particulate matters
; Amino acids
; Allergies
; 4 aminobutyric acid
; alanine
; amino acid
; arginine
; asparagine
; aspartic acid
; citrulline
; cysteine
; glutamic acid
; glutamine
; glycine
; histidine
; hydroxyproline
; isoleucine
; leucine
; lysine
; methionine
; ornithine
; phenylalanine
; proline
; serine
; threonine
; tryptophan
; tyrosine
; valine
; peptide
; aerosol composition
; allergy
; amino acid
; biogenic material
; concentration (composition)
; health impact
; health risk
; particle size
; particulate matter
; peptide
; protein
; seasonal variation
; urban atmosphere
; aerosol
; calibration
; summer
; winter
; aerosol
; animal experiment
; article
; atmosphere
; calibration
; concentration (parameters)
; human
; human tissue
; nonhuman
; particle size
; particulate matter
; priority journal
; rat
; reference value
; summer
; winter
; air pollution
; allergy
; Article
; particle size
; protein content
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Concentrations of free and combined amino acids in an urban atmosphere and their distributions in size-segregated particles were investigated in the cold and warm seasons. In particular this article provides the first investigation of protein bioaerosol concentrations in ultrafine fraction (PM0.1) of particulate matter.In addition the present work provides amino acid and total proteinaceous material concentrations in NIST SRM 1649b, useful as reference values. The reference material was also used to build matrix matched calibration curves.Free amino acid total content in winter and summer PM0.1 was respectively 48.0 and 94.4ngm-3, representing about 0.7 and 7.4% by weight of urban particulate matter in the two seasons.Total airborne protein and peptide concentrations in the same ultrafine fractions were 93.6 and 449.9ngm-3 respectively in winter and in summer, representing 7.5 and 35.4% w/w of PM0.1, and demonstrating an exceptionally high percentage in summer ultrafine fraction.The significant potential adverse health effects of ultrafine particulate matter include allergies mainly caused by protein particles and we assumed that in summer 162ngh-1 of proteinaceous material, by means of ultrafine particles, can penetrate from the lungs into the bloodstream. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81295
Appears in Collections: 气候变化事实与影响
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作者单位: Inail - Research, Certification and Control Division - DIPIA, Via di Fontana Candida, 1, 00040 Monteporzio Catone, Rome, Italy; Department of Chemistry, University of Rome Sapienza, P.le Aldo Moro, 5, 00185 Rome, Italy
Recommended Citation:
Di Filippo P,, Pomata D,, Riccardi C,et al. Free and combined amino acids in size-segregated atmospheric aerosol samples[J]. Atmospheric Environment,2014-01-01,98