دورية أكاديمية
أعرض في EDS

Size-segregated emissions and metal content of vehicle-emitted particles as a function of mileage: Implications to population exposure.

التفاصيل البيبلوغرافية
العنوان: Size-segregated emissions and metal content of vehicle-emitted particles as a function of mileage: Implications to population exposure.
المؤلفون: Golokhvast KS; Far Eastern Federal University, Vladivostok, Russian Federation., Chernyshev VV; Far Eastern Federal University, Vladivostok, Russian Federation., Chaika VV; Far Eastern Federal University, Vladivostok, Russian Federation., Ugay SM; Far Eastern Federal University, Vladivostok, Russian Federation., Zelinskaya EV; National Research Irkutsk State Technical University, Irkutsk, Russian Federation., Tsatsakis AM; University of Crete, Medical School, Department of Toxicology and Forensic Science, Heraklion, Crete, Greece., Karakitsios SP; Aristotle University of Thessaloniki, Department of Chemical Engineering, Thessaloniki, Greece., Sarigiannis DA; Aristotle University of Thessaloniki, Department of Chemical Engineering, Thessaloniki, Greece. Electronic address: denis@eng.auth.gr.
المصدر: Environmental research [Environ Res] 2015 Oct; Vol. 142, pp. 479-85. Date of Electronic Publication: 2015 Aug 08.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0147621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0953 (Electronic) Linking ISSN: 00139351 NLM ISO Abbreviation: Environ Res Subsets: MEDLINE
أسماء مطبوعة: Publication: <2000- > : Amsterdam : Elsevier
Original Publication: New York, Academic Press.
مواضيع طبية MeSH: Environmental Exposure*/adverse effects , Environmental Exposure*/analysis , Motor Vehicles*/standards, Air Pollutants/*analysis , Metals, Heavy/*analysis , Particulate Matter/*analysis , Vehicle Emissions/*analysis, Environmental Health ; Particle Size ; Russia ; Surface Properties ; Urbanization
مستخلص: The study aims at investigating the characteristics (size distribution, active surface and metal content) of particles emitted by cars as a function of mileage using a novel methodology for characterizing particulate emissions captured by Exhaust Gas Suspension (EGS). EGS was obtained by passing the exhaust gases through a container of deionized water. EGS analysis was performed using laser granulometry, electron scanning microscopy, and high resolution mass spectrometry. Implications of the differences in key features of the emitted particles on population exposure were investigated using numerical simulation for estimating size-segregated PM deposition across human respiratory tract (HRT). It was found that vehicle mileage, age and the respective emissions class have almost no effect on the size distribution of the exhaust gas particulate released into the environment; about half of the examined vehicles with low mileage were found to release particles of aerodynamic diameter above 10 μm. The exhaust gas particulate detected in the EGS of all cars can be classified into three major size classes: (1) 0.1-5 µm - soot and ash particles, metals (Au, Pt, Pd, Ir); (2) 10-30 µm - metal (Cr, Fe, Cu, Zr, Ni) and ash particles; (3) 400-1,000 µm - metal (Fe, Cr, Pb) and ash particles. Newer vehicles with low mileage are substantial sources of soot and metal particles with median diameter of 200 nm with a higher surface area (up to 89,871.16 cm(2)/cm(3)). These tend to deposit in the lower part of the human respiratory tract.
(Copyright © 2015. Published by Elsevier Inc.)
فهرسة مساهمة: Keywords: Diesel; Exhaust; Gasoline; Human respiratory tract deposition; Microparticles; Mileage; Ultrafine particles
المشرفين على المادة: 0 (Air Pollutants)
0 (Metals, Heavy)
0 (Particulate Matter)
0 (Vehicle Emissions)
تواريخ الأحداث: Date Created: 20150813 Date Completed: 20160130 Latest Revision: 20151016
رمز التحديث: 20221213
DOI: 10.1016/j.envres.2015.07.018
PMID: 26264860
قاعدة البيانات: MEDLINE
الوصف
تدمد:1096-0953
DOI:10.1016/j.envres.2015.07.018