نتایج جستجو برای: toxic volatile organic compound
تعداد نتایج: 420397 فیلتر نتایج به سال:
Water was found to alter the OH arrangement of a biogenic volatile organic compound. The hydration endo-fenchol has been studied in gas phase using combination Fourier transform microwave spectroscopy and theoretical calculations.
Exposure to vehicle exhaust can drive up to 70 % of excess lifetime cancer incidences due to air pollution in urban environments. Little is known about how exhaust-derived particles and organic pollutants, implicated in adverse health effects, are affected by freezing ambient temperatures and the presence of snow. Airborne particles and (semi)volatile organic constituents in dilute exhaust were...
Odorous compounds play an important role in air pollution in industrial areas and the residential areas surrounding them. This study measured the odorous volatile organic compounds (VOC) and carbonyl compounds at Yeosu and Gwangyang, two large industrial areas of South Korea, during four seasons of 2008-2009. Along with these two cities, the same odorous compounds were measured at Suncheon, whi...
The U.S. Federal Register of April 17, 1987, contains a list of priority pollutants found at Superfund Sites. About half of these are volatile organic compounds (VOC’s), which are known to be toxic and/or carcinogenic in nature. Pervaporation is a membrane technology utilizing a dense non-porous polymeric film to separate the contaminated water from a vacuum source. A membrane is used that pref...
BACKGROUND Electronic noses are composites of nanosensor arrays. Numerous studies showed their potential to detect lung cancer from breath samples by analysing exhaled volatile compound pattern ("breathprint"). Expiratory flow rate, breath hold and inclusion of anatomic dead space may influence the exhaled levels of some volatile compounds; however it has not been fully addressed how these fact...
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