Volatile organic compounds in indoor environment and photocatalytic oxidation: State of the art

2007 ◽  
Vol 33 (5) ◽  
pp. 694-705 ◽  
Author(s):  
Shaobin Wang ◽  
H.M. Ang ◽  
Moses O. Tade
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Oxidation State ◽  
Indoor Environment ◽  
Photocatalytic Oxidation ◽  
State Of The Art ◽  
Volatile Organic

The rate of photocatalytic oxidation of aromatic volatile organic compounds in the gas-phase

2008 ◽  
Vol 42 (34) ◽  
pp. 7844-7850 ◽  
Author(s):  
Aikaterini K. Boulamanti ◽  
Christos A. Korologos ◽  
Constantine J. Philippopoulos
Keyword(s):  
Volatile Organic Compounds ◽  
Gas Phase ◽  
Organic Compounds ◽  
Photocatalytic Oxidation ◽  
Volatile Organic

State-of-the-Art in the Measurement of Volatile Organic Compounds Emitted from Building Products: Results of European Interlaboratory Comparison

Indoor Air ◽  
1999 ◽  
Vol 9 (2) ◽  
pp. 103-116 ◽  
Author(s):  
Maurizio Bortoli ◽  
Stylianos Kephalopoulos ◽  
Severine Kirchner ◽  
Herbert Schauenburg ◽  
Henk Vissers
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Interlaboratory Comparison ◽  
State Of The Art ◽  
Building Products ◽  
Volatile Organic

scholarly journals Achieving a healthy indoor environment by using an emissions barrier for stopping spread of chemicals from building into the indoor air

2021 ◽  
Author(s):  
Johan Mattsson ◽  
Lennart Larsson
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Aromatic Hydrocarbons ◽  
Indoor Environment ◽  
Concrete Slab ◽  
Treated Wood ◽  
Volatile Organic ◽  
Polycyclic Aromatic

An emissions barrier was used in premises with indoor air complaints due to emissions from the buildings in question. The emissions comprised chlorophenols/chloroanisoles and polycyclic aromatic hydrocarbons (PAH) from treated wood, and volatile organic compounds (VOC), mainly 2-ethylhexanol, from PVC flooring and the glue used to paste the flooring onto a concrete slab. Attaching the barrier at the surfaces from where the emissions were spread (floor, walls, ceiling) resulted in a fresh and odour-free indoor air. We conclude that using an emissions barrier in buildings made unhealthy by moisture is an efficient way of restoring a pleasant and healthy indoor air.

Effect of surface fluorination of P25-TiO2 on adsorption of indoor environment volatile organic compounds

2018 ◽  
Vol 346 ◽  
pp. 578-589 ◽  
Author(s):  
Zahra Shayegan ◽  
Fariborz Haghighat ◽  
Chang-Seo Lee ◽  
Ali Bahloul ◽  
Melanie Huard
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Environment ◽  
Volatile Organic ◽  
Surface Fluorination ◽  
Effect Of Surface

scholarly journals Modeling organic aerosol concentrations and properties during winter 2014 in the northwestern Mediterranean region

2018 ◽  
Author(s):  
Mounir Chrit ◽  
Karine Sartelet ◽  
Jean Sciare ◽  
Marwa Majdi ◽  
José Nicolas ◽  
...  
Keyword(s):  
Air Quality ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Oxidation State ◽  
Organic Aerosol ◽  
Single Step ◽  
Basis Set ◽  
Residential Heating ◽  
Volatile Organic ◽  
Northwestern Mediterranean

Abstract. Organic aerosols are measured at a remote site (Ersa) on Corsica Cape in the northwestern Mediterranean basin during the Chemistry-Aerosol Mediterranean Experiment (CharMEx) winter campaign of 2014, when high organic concentrations from anthropogenic origin are observed. This work aims at representing the observed organic aerosol concentrations and properties (oxidation state) using the air-quality model Polyphemus with a surrogate approach for secondary organic aerosol (SOA) formation. Because intermediate/semi-volatile organic compounds (I/S-VOC) are the main precursors of SOA at Ersa during the winter 2014, different parameterizations to represent the emission and ageing of I/S-VOC were implemented in the chemistry-transport model of the air-quality platform Polyphemus (different volatility distribution emissions, single-step oxidation vs multi-step oxidation within a Volatility Basis Set framework, inclusion of non-traditional volatile organic compounds NTVOC). Simulations using the different parameterizations are compared to each other and to the measurements (concentration and oxidation state). The high observed organic concentrations are well reproduced whatever the parameterizations. They are slightly under-estimated with most parameterizations, but they are slightly over-estimated when the ageing of NTVOC is taken into account. The volatility distribution at emissions influences more strongly the concentrations than the choice of the parameterization that may be used for ageing (single-step oxidation vs multi-step oxidation), stressing the importance of an accurate characterization of emissions. Assuming the volatility distribution of sectors other than residential heating to be the same as residential heating may lead to a strong under-estimation of organic concentrations. The observed organic oxidation and oxygenation states are strongly under-estimated in all simulations, even when a recently developed parameterization for modeling the ageing of I/S-VOC from residential heating is used. This suggests that uncertainties in the ageing of I/S-VOC emissions remain to be elucidated, with a potential role of organic nitrate from anthropogenic precursors and highly oxygenated organic molecules.

Correlations between Molecular Descriptors from Various Volatile Organic Compounds and Photocatalytic Oxidation Kinetic Constants

2013 ◽  
Vol 11 (2) ◽  
pp. 799-813 ◽  
Author(s):  
Cécile Raillard ◽  
Valérie Héquet ◽  
Bifen Gao ◽  
Heyok Choi ◽  
Dionysios D. Dionysiou ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Photocatalytic Oxidation ◽  
Molecular Descriptors ◽  
Equilibrium Constants ◽  
Oxidation Kinetic ◽  
Chemical Properties ◽  
Physico Chemical ◽  
Degradation Rates ◽  
Volatile Organic

Abstract The photocatalytic oxidation of seven typical indoor volatile organic compounds (VOCs) is experimentally investigated using novel nanocrystalline TiO2 dip-coated catalysts. Not only the role of hydrophilicity of the reactants but also other physico-chemical properties and molecular descriptors are studied and related to kinetic and equilibrium constants. The main objective of this work consists in establishing simple relationships that will be useful to deepen the understanding of gas-phase heterogeneous photocatalytic mechanisms and for the prediction of degradation rates of these VOCs using an indoor air treatment process.

Volatile Organic Compounds Emissions from Particleboard Veneered with Decorative Paper Foil

Holzforschung ◽  
2002 ◽  
Vol 56 (1) ◽  
pp. 108-110 ◽  
Author(s):  
R. Wiglusz ◽  
G. Nikel ◽  
B. Igielska ◽  
E. Sitko
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Indoor Environment ◽  
Health Hazard ◽  
Wood Composite ◽  
Volatile Organic

Abstract The indoor environment can constitute a serious health hazard if buildings are not properly constructed and finished. Building, finishing and furnishing materials may emit a large number of volatile organic compounds (VOCs) into the indoor air. That wood-composite products are among the sources of formaldehyde emissions is well documented. Up until now very little has been known about the emission of VOCs from wood-composite products (Merrill and Steiber 1987; Levin 1992; Sundin and Edenholm 1992; Catananti et al. 1993; Barry and Corneau 1999). The aim of this work is the determination of VOC and formaldehyde emissions from particleboard veneered with decorative paper foil.

Sign in / Sign up

Export Citation Format

Share Document