Sources and Characteristics of Particulate Matter in Subway Tunnels in Seoul, Korea
نویسندگان
چکیده
منابع مشابه
Characterization of Fine Particulate Matter and Associations between Particulate Chemical Constituents and Mortality in Seoul, Korea
BACKGROUND Numerous studies have linked fine particles [≤ 2.5 µm in aerodynamic diameter (PM(2.5))] and health. Most studies focused on the total mass of the particles, although the chemical composition of the particles varies substantially. Which chemical components of fine particles that are the most harmful is not well understood, and research on the chemical composition of PM(2.5) and the c...
متن کاملCharacteristics and Sources of Fine Particulate Matter in Urban Air
Particulate matter is an important component of the air pollution mixture that has been linked to various adverse health outcomes as well as having general environmental effects. It is not yet clear which causative agents and underlying mechanisms are responsible for these adverse health effects. However, it is likely that the source of the particles, a factor which influences their characteris...
متن کاملChemical Characterization of Outdoor and Subway Fine (PM2.5–1.0) and Coarse (PM10–2.5) Particulate Matter in Seoul (Korea) by Computer-Controlled Scanning Electron Microscopy (CCSEM)
Outdoor and indoor (subway) samples were collected by passive sampling in urban Seoul (Korea) and analyzed with computer-controlled scanning electron microscopy coupled with energy dispersive x-ray spectroscopy (CCSEM-EDX). Soil/road dust particles accounted for 42%-60% (by weight) of fine particulate matter larger than 1 µm (PM(2.5-1.0)) in outdoor samples and 18% of PM2.5-1.0 in subway sample...
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تعداد 20 رأس میش نژاد نائینی 6+-24 ماهه، با میانگین وزن 2/3-+40 کیلوگرم، همراه با 20 رأس بره های آنها در قالب طرح کاملا تصادفی اثر بتائین و مکمل سولفات بر خصوصیات شیر و پشم و عملکرد بره ها بررسی شد. میش ها بطور تصادفی در چهار تیمار قرار گرفتند. تیمارها عبارت بودند از: 1-گروه شاهد 2-بتائین (05/0 درصد ماده خشک) 3-سولفات (24/0 سولفور درصد ماده خشک 4-بتائین هرماه با سولفات. جیره غذائی طبق nrc با مح...
15 صفحه اولPhysical-chemical characterization of the particulate matter in tunnels
Introduction Conclusions References
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ژورنال
عنوان ژورنال: International Journal of Environmental Research and Public Health
سال: 2018
ISSN: 1660-4601
DOI: 10.3390/ijerph15112534