Ambient Air Concentrations, Source Profiles, and Source Apportionment of 71 Different C2−C10 Volatile Organic Compounds in Urban and Residential Areas of Finland

2006 ◽  
Vol 40 (1) ◽  
pp. 103-108 ◽  
Author(s):  
Heidi Hellén ◽  
Hannele Hakola ◽  
Liisa Pirjola ◽  
Tuomas Laurila ◽  
Kati-henna Pystynen
Keyword(s):  
Volatile Organic Compounds ◽  
Source Apportionment ◽  
Organic Compounds ◽  
Ambient Air ◽  
Residential Areas ◽  
Source Profiles ◽  
Volatile Organic ◽  
Air Concentrations

JUSTIFICATION OF MAXIMUM (ONE-TIME) ALLOWABLE CONCENTRATION OF VOLATILE ORGANIC COMPOUNDS, EMERGING DURING THE HIGH TEMPERATURE TREATMENT OF WOOD IN CHIPBOARD PRODUCTION, IN THE AMBIENT AIR

2017 ◽  
pp. 42-47 ◽  
Author(s):  
O. V. Budarina ◽  
M. A. Pinigin ◽  
L. A. Fedotova ◽  
Z. F. Sabirova ◽  
Z. V. Shipulina
Keyword(s):  
High Temperature ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Experimental Studies ◽  
Ambient Air ◽  
High Temperature Treatment ◽  
Residential Areas ◽  
Atmospheric Air ◽  
Volatile Organic ◽  
High Temperature Processing

Results of experimental studies are reported on the substantiation of the maximum single permissible concentration (MAC maximum single) of volatile organic compounds, formed during a high temperature processing of wood in chipboard production (based on tererpene hydrocarbons), in the atmospheric air of residential areas at the level of 0.05 mg/m3. The magnitude was established on the basis of olfacto-odorimetry taking into account new approaches to the determination of «obsessive» odor thresholds as a limiting criterion for the MAC maximum single justification in accordance with the international practice of setting odor limits and our home experience gained in the standardization of odorous substances in the ambient air. The selection of priority substances for the control of the designed value (α-pinene, β-pinene, 3-carene, limonene, camphene) was based on the analysis results of the composition of releases from a high temperature processing of wood and atmospheric air in the enterprise location area.

Concentration and source apportionment of volatile organic compounds (VOCs) in the ambient air of Kuala Lumpur, Malaysia

2016 ◽  
Vol 85 (1) ◽  
pp. 437-452 ◽  
Author(s):  
Puteri Nurafidah Hosaini ◽  
Md Firoz Khan ◽  
Nur Ili Hamizah Mustaffa ◽  
Norhaniza Amil ◽  
Noorlin Mohamad ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Source Apportionment ◽  
Organic Compounds ◽  
Ambient Air ◽  
Kuala Lumpur ◽  
Volatile Organic

scholarly journals Spatial Distribution, Source Apportionment, Ozone Formation Potential, and Health Risks of Volatile Organic Compounds over a Typical Central Plain City in China

Atmosphere ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1365
Author(s):  
Kun He ◽  
Zhenxing Shen ◽  
Jian Sun ◽  
Yali Lei ◽  
Yue Zhang ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Source Apportionment ◽  
Organic Compounds ◽  
Health Risks ◽  
Urban Areas ◽  
High Time Resolution ◽  
Ozone Formation ◽  
Industrial Site ◽  
Industrial Emissions ◽  
Volatile Organic

The profiles, contributions to ozone formation, and associated health risks of 56 volatile organic compounds (VOCs) species were investigated using high time resolution observations from photochemical assessment monitoring stations (PAMs) in Luoyang, China. The daily averaged concentration of total VOCs (TVOCs) was 21.66 ± 10.34 ppbv in urban areas, 14.45 ± 7.40 ppbv in suburbs, and 37.58 ± 13.99 ppbv in an industrial zone. Overall, the VOCs levels in these nine sites followed a decreasing sequence of alkanes > aromatics > alkenes > alkyne. Diurnal variations in VOCs exhibited two peaks at 8:00–9:00 and 19:00–20:00, with one valley at 23:00–24:00. Source apportionment indicated that vehicle and industrial emissions were the dominant sources of VOCs in urban and suburban sites. The industrial site displayed extreme levels, with contributions from petrochemical-related sources of up to 38.3%. Alkenes and aromatics displayed the highest ozone formation potentials because of their high photochemical reactivity. Cancer and noncancer risks in the industrial site were higher than those in the urban and suburban areas, and USEPA possible risk thresholds were reached in the industrial site, indicating PAMs VOC–related health problems cannot be ignored. Therefore, vehicle and industrial emissions should be prioritized when considering VOCs and O3 control strategies in Luoyang.

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