Results 11 to 20 of about 33,310 (337)

Associations between blood volatile organic compounds, and changes in hematologic and biochemical profiles, in a population-based study

open access: yesEnvironment International, 2020
Objective: To investigate the influence of volatile organic compound (VOC) levels in blood, on hematological and serum biochemical parameters in the Canadian population.
Sabit Cakmak   +4 more
doaj   +1 more source

Consumption of Hydrocarbons and Its Relationship with Ozone Formation in Two Chinese Megacities

open access: yesAtmosphere, 2020
Continuous measurements of ozone and its precursors were performed at sites in two Chinese megacities, i.e., an urban site in Beijing and a suburban site in the Pearl River Delta (PRD).
Chih-Chung Chang   +2 more
doaj   +1 more source

Direct and Oxidative DNA Damage in a Group of Painters Exposed to VOCs: Dose – Response Relationship

open access: yesFrontiers in Public Health, 2020
Volatile organic compounds (VOCs) are present in several working activities. This work is aimed at comparing oxidative stress and DNA damage biomarkers to specific VOCs in the occupational exposure of painters.
Renata Sisto   +15 more
doaj   +1 more source

On the use of an explicit chemical mechanism to dissect peroxy acetyl nitrate formation. [PDF]

open access: yes, 2014
Peroxy acetyl nitrate (PAN) is a key component of photochemical smog and plays an important role in atmospheric chemistry. Though it has been known that PAN is produced via reactions of nitrogen oxides (NOx) with some volatile organic compounds (VOCs ...
Blake, Donald R   +16 more
core   +1 more source

Source contributions to ambient VOCs and CO at a rural site in eastern China [PDF]

open access: yes, 2004
Ambient data on volatile organic compounds (VOCs) and carbon monoxide (CO) obtained at a rural site in eastern China are analyzed to investigate the nature of emission sources and their relative contributions to ambient concentrations.
Blake, DR   +6 more
core   +1 more source

The impact of reduction in the benzene limit value in gasoline on airborne benzene, toluene and xylenes levels [PDF]

open access: yes, 2004
Background benzene, toluene, xylenes (BTX) average concentrations have been measured over the urban agglomeration of Toulouse, France, during both springtime and summer periods of 1999 and 2001.
Baer, Mathilde   +5 more
core   +4 more sources

Transalkylation of Toluene with 1, 2, 4-Trimethylbenzene over

open access: yesChemical Engineering Transactions, 2017
The catalytic activity, selectivity to xylenes and time-on-stream stability were investigated in the transalkylation of toluene with 1, 2, 4-trimethylbenzene. The catalytic tests were carried out in a fixed bed reactor over zeolite Beta (Si/Al = 12.5, 75
F. Almulla   +3 more
doaj   +1 more source

Emission characteristics of nonmethane hydrocarbons from private cars and taxis at different driving speeds in Hong Kong [PDF]

open access: yes, 2011
Vehicular emissions are the major sources of a number of air pollutants including nonmethane hydrocarbons (NMHCs) in urban area. The emission composition and emission factors of NMHCs from vehicles are currently lacking in Hong Kong.
Blake, DR   +4 more
core   +1 more source

Purification and Characterization of High Purity Nano Zirconia by Liquid-Liquid Extraction Using D2EHPA/p-Xylenes

open access: yesInorganics, 2022
In this paper, Zr(IV) nitrate solution decomposed from Viet Nam zircon concentrate was the source of zirconium extraction by liquid-liquid extraction (L.L.E). The FT-IR and UV-Vis spectra confirmed the extraction of Zr(IV) by D2EHPA/p-xylenes. There were
Manh Nhuong Chu   +9 more
doaj   +1 more source

Synthesis and properties of a new AB-cross-linked copolymer membrane system [PDF]

open access: yes, 1993
The alcohol permeability and permselectivity properties as well as the morphology of membranes made of a newly developed AB-cross-linked copolymer system composed of elastomeric and glassy components were investigated.
Kerres, J.A., Strathmann, H.
core   +2 more sources

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