Spatial and temporal trends of volatile organic compounds (VOC) in a rural area of northern Spain

Parra, M.A.; González, L.; Elustondo, David; Garrigó, J.; Bermejo, R.; Santamaría, Jesús Miguel

doi:10.1016/j.scitotenv.2006.06.022

Cited by 92 publications

(50 citation statements)

References 22 publications

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“…Benzene levels from the TROICA-12 campaign are broadly comparable in magnitude with other published data on their abundance in the summer urban and rural continental surface air (Elansky et al, 2000;Barletta et al, 2005;Na et al, 2005;Parra et al, 2006;Hoque et al, 2008;Tiwary et al, 2010;Seco et al, 2013;Wagner and Kuttler, 2014). However, toluene levels tended to be lower than those reported in earlier publications.…”

Section: Spatial Distribution Of Benzene and Toluene Along The Trans-supporting

confidence: 85%

“…They are often associated with air emissions from petroleum production industries (motor vehicle exhaust, incomplete combustion of fossil fuels, oil and gas service stations, and other industrial and human activities). Filella and Peñuelas (2006) Many studies on benzene and toluene in urban and rural atmosphere have been carried out around the world (e.g., Keymeulen et al, 2001;Barletta et al, 2005;Parra et al, 2006;Velasko et al, 2007;Tivary et al, 2010;Miller et al, 2011;Civan et al, 2011;Chaudhary et al, 2012;Shaw et al, 2015). However, there is still a substantial lack of information on benzene and toluene abundance and spatial localization in remote areas of the North Eurasia, although some studies were performed by and Timkovsky et al (2010).…”

Section: Introductionmentioning

confidence: 99%

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Benzene and toluene in the surface air of northern Eurasia from TROICA-12 campaign along the Trans-Siberian Railway

et al. 2017

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Abstract. Volatile organic compounds (VOCs) were measured by proton transfer reaction mass spectrometry (PTR-MS) on a mobile laboratory in a transcontinental TROICA-12 (21 July-4 August 2008) campaign along the TransSiberian Railway from Moscow to Vladivostok. Surface concentrations of benzene (C 6 H 6 ) and toluene (C 7 H 8 ) along with non-methane hydrocarbons (NMHCs), CO, O 3 , SO 2 , NO, NO 2 and meteorology are analyzed in this study to identify the main sources of benzene and toluene along the TransSiberian Railway. The most measurements in the TROICA-12 campaign were conducted under low-wind/stagnant conditions in moderately (∼ 78 % of measurements) to weakly polluted (∼ 20 % of measurements) air directly affected by regional anthropogenic sources adjacent to the railway. Only 2 % of measurements were identified as characteristic of highly polluted urban atmosphere. Maximum values of benzene and toluene during the campaign reached 36.5 and 45.6 ppb, respectively, which is significantly less than their short-term exposure limits (94 and 159 ppb for benzene and toluene, respectively). About 90 % of benzene and 65 % of toluene content is attributed to motor vehicle transport and 10 and 20 %, respectively, provided by the other local-and regional-scale sources. The highest average concentrations of benzene and toluene are measured in the industrial regions of the European Russia (up to 0.3 and 0.4 ppb for benzene and toluene, respectively) and south Siberia (up to 0.2 and 0.4 ppb for benzene and toluene, respectively). Total contribution of benzene and toluene to photochemical ozone production along the Trans-Siberian Railway is about 16 % compared to the most abundant organic VOC -isoprene. This contribution, however, is found to be substantially higher (up to 60-70 %) in urbanized areas along the railway, suggesting an important role of anthropogenic pollutant sources in regional ozone photochemistry and air quality.

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Section: Spatial Distribution Of Benzene and Toluene Along The Trans-supporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Benzene and toluene in the surface air of northern Eurasia from TROICA-12 campaign along the Trans-Siberian Railway

et al. 2017

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“…Strong wind speed could exert a dilution effect on atmospheric concentrations (Karar and Gupta 2006), while high temperature could increase the photochemical reactions of HAPs, thereby reducing HAP concentrations (Stroud et al 2008). In contrast to the present study, Parra et al (2006) reported a positive correlation between relative humidity and the concentrations of certain aromatic HAPs. The reason for this difference remains unclear; therefore, further studies to address this issue are warranted.…”

Section: Relationship Of Hap Concentrations With Meteorological Paramcontrasting

confidence: 99%

Spatial and long-term temporal assessment of organic hazardous air pollutants and their comparative health risks

Kim

2015

Int. J. Environ. Sci. Technol.

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This study investigated the spatial and longterm temporal characteristics of 13 selected organic hazardous air pollutants and the health risks associated with inhalation exposure over a recent 6-year period. Regional types selected for this study included a residential-commercial complex, traffic junction, petrochemical industry, iron and metal industry, and background areas in Korea. Toluene was generally the most abundant pollutants in all areas. The petrochemical industrial area had the highest median concentrations of six pollutants (benzene, ethyl benzene, o-xylene, m,p-xylene, styrene, and chloroform), followed by the residential-commercial complex, traffic junction, iron and metal industry, and background area. The residential-commercial complex and traffic junction areas showed the highest and second highest toluene concentrations, respectively. Two pollutants (1,1-dichloroethane and 1,3-butadiene) were present in similar concentrations among the five areas. In addition, the temporal trends in the annual mean concentrations exhibited unpredictable behavior depending on both the area and the type of pollutants. At the residential-commercial complex and traffic junction areas, six aromatic compounds showed significant correlations among themselves. In most cases, three important meteorological parameters (relative humidity, temperature, and wind speed) were not significantly

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“…A group of compounds including benzene, toluene, ethylbenzene and xylenes (BTEX) belong to are a particular group of VOCs. They are mainly emitted from road traffic in urban areas, and they could be found up to 60 % of nonmethane VOCs (Lee et al 2002;Parra et al 2006) and 35 % of total VOCs (Perry and Gee 1995;Fernández-Villarrenaga et al 2004). Vehicle exhaust is well known to be the main VOCs source in the atmosphere (Fujita et al 1994;Thijesse et al 1999;Na 2006;Hoque et al 2008), especially the emission of BTEX which are probably the most serious effects on air quality (Laowagul et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Development of low-cost passive sampler from cow bone char for sampling of volatile organic compounds

Tala

Chantara

Thiansem

et al. 2016

Int. J. Environ. Sci. Technol.

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A simple and low-cost passive sampler for collection of volatile organic compounds, specifically benzene, toluene, ethylbenzene and xylene (BTEX), from the ambient air has been developed by using cow bone char (CBC) as an adsorbent with desorption by solvent extraction prior to analysis by gas chromatography-mass spectrometry (GC-MS). The laboratory-made CBC was prepared by calcination process in a partially oxidative atmosphere. The developed passive sampler was tested for a suitable amount of CBC used, diffusion tube type and size, and sampling duration, in a closed chamber saturated with each of the BTEX vapors. With the optimum amount of 250 mg CBC packed in a glass bottle (82.6 mm height 9 11.1 mm i.d.) and the exposure time of 168 h, detection limits (lg/m 3 ) for BTEX determination using this developed sampler together with GC-MS were 0.28 (benzene), 0.79 (toluene), 0.58 (ethylbenzene), 0.28 (p-xylene) and 0.54 (o-xylene). The proposed method was applied to sampling BTEX from selected petrol stations, traffic congestion areas and a rural area in Chiang Mai Province, Thailand. The BTEX concentrations detected were well correlated with their sources as they were the highest at the petrol station sites, lower at the traffic congestion area sites and the lowest at the rural area site. The laboratory-made passive sampler containing CBC has thus opened up a possibility of having a simple and effective device for sampling of BTEX in the ambient air.

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Spatial and temporal trends of volatile organic compounds (VOC) in a rural area of northern Spain

Cited by 92 publications

References 22 publications

Benzene and toluene in the surface air of northern Eurasia from TROICA-12 campaign along the Trans-Siberian Railway

Benzene and toluene in the surface air of northern Eurasia from TROICA-12 campaign along the Trans-Siberian Railway

Spatial and long-term temporal assessment of organic hazardous air pollutants and their comparative health risks

Development of low-cost passive sampler from cow bone char for sampling of volatile organic compounds

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