scholarly journals Polymer Optical Microcavity Sensor for Volatile Organic Compounds with Distinct Selectivity toward Aromatic Hydrocarbons

ACS Omega ◽  
2021 ◽  
Author(s):  
Airong Qiagedeer ◽  
Hiroshi Yamagishi ◽  
Shotaro Hayashi ◽  
Yohei Yamamoto
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Aromatic Hydrocarbons ◽  
Optical Microcavity ◽  
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.

Use of External Radical Sources in Flash Vacuum Pyrolysis to Facilitate Cyclodehydrogenation Reactions in Polycyclic Aromatic Hydrocarbons

2014 ◽  
Vol 67 (9) ◽  
pp. 1338 ◽  
Author(s):  
Aaron W. Amick ◽  
Sara E. Martin
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Aromatic Hydrocarbons ◽  
Flash Vacuum Pyrolysis ◽  
Vacuum Pyrolysis ◽  
Ability To Act ◽  
New Process ◽  
Volatile Organic ◽  
Polycyclic Aromatic

A new process to facilitate the cyclodehydrogenation of polycyclic aromatic hydrocarbons (PAHs) in flash vacuum pyrolysis (FVP) using an external radical source is described. Using hexanes as an external radical source the conversion of various PAHs to their cyclodehydrogenated products is vastly increased. Various other volatile organic compounds were also examined to determine their ability to act as external radical sources in FVP.

Pollution Characteristic of VOCs during Straw Burning Period in Chengdu, China

2015 ◽  
Vol 737 ◽  
pp. 495-498
Author(s):  
Hong Ling Yin ◽  
Hua Wei Yuan ◽  
Zhuang Hu ◽  
Jin Feng Liang ◽  
Shi Ping Li
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Aromatic Hydrocarbons ◽  
Photochemical Reaction ◽  
Reaction Type ◽  
Volatile Organic ◽  
Aldehydes And Ketones ◽  
Straw Burning ◽  
Main Components

Volatile organic compounds (VOCs) were analyzed in straw burning period and non-straw burning period in the center of Chengdu city. The results showed that the concentrations of TVOC during straw burning were significantly higher than that in the non-straw burning period in Chengdu. The main components were alkanes, aromatic hydrocarbons and esters in straw burning period while aromatic hydrocarbons, alkanes, esters, aldehydes and ketones as the main contents in the period of non-straw burning. The correlation of TVOC, SO2, NO2, PM10, PM2.5, CO, O3 and the API index was discussed and the NOX-sensitive of photochemical reaction type was determined by the ratio of TVOC / NO2 during straw burning period.

scholarly journals Curing building related illnesses by using an emissions barrier

2021 ◽  
Vol 2069 (1) ◽  
pp. 012241
Author(s):  
L Larsson ◽  
J Mattsson ◽  
T Lehtimaa
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Aromatic Hydrocarbons ◽  
Concrete Slab ◽  
Treated Wood ◽  
Volatile Organic ◽  
Polycyclic Aromatic ◽  
New Type

Abstract A new type of 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.

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