نتایج جستجو برای: volatile organic compounds vocs
تعداد نتایج: 426167 فیلتر نتایج به سال:
2Printed on paper that contains at least 20 percent postconsumer fiber. ach year agricultural effluents, industrial residues, and industrial accidents contaminate surface waters, soils, air, streams, and reservoirs. A new compost technology, known as compost bioremediation, is currently being used to restore contaminated soils, manage stormwater, control odors, and degrade volatile organic comp...
Emissions of volatile organic compounds (VOCs) from concentrated 1 animal feeding operations (CAFOs): chemical compositions and 2 separation of sources 3 Bin Yuan, Matthew M. Coggon, Abigail R. Koss, Carsten Warneke, Scott 4 Eilerman, Jeff Peischl, Kenneth C. Aikin, Thomas B. Ryerson, Joost A. de 5 Gouw 6 1. NOAA Earth System Research Laboratory (ESRL), Chemical Sciences Division, 7 Boulder, CO...
This manuscript presents the on-line measurements of 24 volatile organic compounds (VOCs) during a field campaign at a background site of Cyprus in March 2015. Based on the measurements, the temporal variability of VOCs was investigated. Six major sources and corresponding origins of VOCs were addressed by time series analysis, PMF receptor model, as well as CPF and CF. Furthermore, the influen...
Many parasitic wasps (parasitoids) exploit volatile organic compounds (VOCs) emitted by herbivore-infested plants in order to locate their hosts, but it remains largely unknown which specific compounds within the volatile blends elicit the attractiveness to parasitoids. One way of studying the importance of specific VOCs is to test the attractiveness of odor blends from which certain compounds ...
Submit Manuscript | http://medcraveonline.com Abbreviations: CCRs: Cumulative Cancer Risks; ETS: Environmental Tobacco Smoking; HAPs: Hazardous Air Pollutants; HEATS: Houston Exposure to Air Toxics Study; OVM: Organic Vapor Monitor (3MTM); PAHs: Polycyclic Aromatic Hydrocarbons; PM2.5: Particles Less Than 2.5 Micrometers in Diameter, Fine Particulate Matter; RIOPA: Relationship Among Indoor, Ou...
Volatile organic compounds from feces and their potential for diagnosis of gastrointestinal disease.
Little is known about the volatile organic compounds (VOCs) in feces and their potential health consequences. Patients and healthcare professionals have observed that feces often smell abnormal during gastrointestinal disease. The aim of this work was to define the volatiles emitted from the feces of healthy donors and patients with gastrointestinal disease. Our hypotheses were that i) VOCs wou...
In the Persian Gulf region, conditions are highly favorable for ozone air pollution and the region is a hot spot of photochemical smog. The vast activities in processing oil and gas play a major role in it. It was found that the elevated concentrations of reactive hydrocarbons co-emitted with nitrogen oxides from Hydrocarbon Processing facilities lead to substantial ozone production. South Pars...
The ability of a complex mixture of organic compounds found in secondary organic aerosol (SOA) to act as a photosensitizer in the oxidation of volatile organic compounds (VOCs) was investigated. Different types of SOAs were produced in a smog chamber by oxidation of various biogenic and anthropogenic VOCs. The SOA particles were collected from the chamber onto an inert substrate, and the result...
Hundreds of volatile organic compounds (VOCs) are emitted from the human body, and the components of VOCs usually reflect the metabolic condition of an individual. Therefore, contracting an infectious or metabolic disease often results in a change in body odour. Recent progresses in analytical techniques allow rapid analyses of VOCs derived from breath, blood, skin and urine. Disease-specific V...
Headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) was used to identify the volatile organic compounds (VOCs) of the different flower development stages of Cananga odorata for the evaluation of floral volatile polymorphism as a basis to determine the best time of harvest. Electronic nose results, coupled with discriminant factor analysis, suggested that e...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید