Results 241 to 250 of about 3,509,521 (288)
Some of the next articles are maybe not open access.

Volatile organic compounds (VOCs) in urban atmosphere of Hong Kong

Chemosphere, 2002
The assessment of volatile organic compounds (VOCs) has become a major issue of air quality network monitoring in Hong Kong. This study is aimed to identify, quantify and characterize volatile organic compounds (VOCs) in different urban areas in Hong Kong.
S C, Lee   +4 more
openaire   +2 more sources

Volatile Organic Compounds (VOCs) Biofiltration with Two Packing Materials

Environmental Technology, 2006
The treatment of a gas stream containing a mixture of acetone, toluene and trichlorethylene (TCE) was tested in two biofilters packed with compost only (biofilter B1) or a mixture of pozzolan and compost (biofilter B2). The biofilter performance was evaluated at VOCs concentration of 101 mg m(-3) of acetone - 210 mg m(-3) of toluene - 89 mg m(-3) of ...
Gracy, Séverine   +3 more
openaire   +3 more sources

Aldehydes, Volatile Organic Compounds (VOCs), and Health

2019
A variety of organic compounds are found in the indoor air. Aldehydes and volatile organic compounds (VOCs) are chemicals categorized with boiling points from 50–100 °C to 240–260 °C; therefore, they can be found indoors in the gaseous phase. Formaldehyde is a dominant aldehyde found indoors.
Atsuko Araki   +3 more
openaire   +1 more source

Ionic liquid technology to recover volatile organic compounds (VOCs)

Journal of Hazardous Materials, 2017
Volatile organic compounds (VOCs) comprise a wide variety of carbon-based materials which are volatile at relatively low temperatures. Most of VOCs pose a hazard to both human health and the environment. For this reason, in the last years, big efforts have been made to develop efficient techniques for the recovery of VOCs produced from industry.
M J, Salar-García   +4 more
openaire   +2 more sources

Real time analysis of volatile organic compounds (VOCs) in centenarians

Respiratory Physiology & Neurobiology, 2015
Centenarians are a model to study human longevity and the physiological process of aging. A plethora of studies on this model show the complexity of the system. Laboratory studies fail to find a biomarker of senescence. The real time exhaled breath volatile organic compounds (VOCs) has been suggested as a new biomarker to detect and monitor ...
MAZZATENTA, ANDREA   +2 more
openaire   +3 more sources

[Volatile Organic Compounds (VOC): definition, classification and properties].

Revue des maladies respiratoires, 2008
The term volatile organi compounds includes a wide variety of chemical substances with the common feature of being carbon compounds that are volatile at ambient temperature. They can be classified into different families defined by their chemical formulae, each of which possesses common properties, although there may be major differences in terms of ...
openaire   +2 more sources

Colorimetric Polydiacetylene–Aerogel Detector for Volatile Organic Compounds (VOCs)

ACS Applied Materials & Interfaces, 2017
A new hybrid system comprising polydiacetylene (PDA), a chromatic conjugated polymer, embedded within aerogel pores has been constructed. The PDA-aerogel powder underwent dramatic color changes in the presence of volatile organic compounds (VOCs), facilitated through infiltration of the gas molecules into the highly porous aerogel matrix and their ...
Susmita Dolai   +5 more
openaire   +2 more sources

Atmospheric Volatile Organic Compounds (VOCs) in China: a Review

Current Pollution Reports, 2020
The purpose of this review is to summarize the current understandings of atmospheric VOC characteristics in China and put forward the methodological drawbacks of the VOC measurement that need to be resolved and the research gaps that need to be filled.
Ahsan Mozaffar, Yan-Lin Zhang
openaire   +1 more source

Polar Volatile Organic Compounds ( VOC ) of Natural Origin as Precursors of Ozone

Environmental Monitoring and Assessment, 1994
HRGC-MS determinations carried out on samples collected in urban, suburban, rural, forest and remote areas suggest that several other classes of non-methane VOC than isoprene and monoterpene hydrocarbons can be emitted by plants. Because of their high photochemical reactivity, they can contribute to tropospheric ozone production which, in turn, can ...
P, Ciccioli   +4 more
openaire   +2 more sources

An Overview of Volatile Organic Compounds (VOCs)

Resonance, 2022
Karishma Bagawan   +2 more
openaire   +1 more source

Home - About - Disclaimer - Privacy