Effects of ambient temperature on aspects of airborne polycyclic aromatic hydrocarbons

Yamasaki, Hiroyasu; Kuwata, Kazuhiro; Miyamoto, Hiroko

doi:10.1021/es00098a003

Cited by 686 publications

(468 citation statements)

References 9 publications

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“…Particle-gas distributions are inversely related to temperature, as first demonstrated by Yamasaki et al (1982):…”

Section: Temperature Dependence Of Partition Constantmentioning

confidence: 88%

“…Initially, the partitioning was based on the Langmuir adsorption theory (Junge, 1977;Yamasaki et al, 1982) taking into account a mechanism of physical adsorption of the organic molecules on the particle surface. Afterwards, a mechanism based on the absorption of the semi-volatile organic compounds in the organic phase of the particle matter showed to be more relevant (Pankow, 1994a(Pankow, , 1994b.…”

Section: Introductionmentioning

confidence: 99%

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Some inferences on the mechanism of atmospheric gas/particle partitioning of polycyclic aromatic hydrocarbons (PAH) at Zaragoza (Spain)

et al. 2008

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8Gas-particle partitioning of pollutants is an important mechanism determining 9 atmospheric processing and its impact to environmental and human health. In this 10 paper, the gas-particle partitioning of polycyclic aromatic hydrocarbons (PAH) has been 11 studied with the aim of determining the main mechanism of PAH partitioning in 12 Zaragoza (Spain) aerosols. To reach this goal, the ambient concentrations of PAH (gas 13 and particle phase) collected in this city for one year period (2003)(2004) have been 14 analyzed. 15The partitioning between the particle and gas phases was studied according to three 16 different models: the Junge adsorption model, the absorption into the organic matter 17 model using the octanol-air (K OA ) partition coefficient and the absorption into the 18 organic matter plus the adsorption onto the soot carbon model using the soot-air (K SA ) 19 partition coefficients. 20Experimental gas/particle partition coefficients (K P ) correlated well with the subcooled 21 liquid vapour pressures (P 0 L ) of PAH but with slopes higher than the expected value of -22 1. Experimental Kp values were well fit to the modelled ones when, in addition to 23 absorption into organic matter, adsorption onto the soot carbon was considered. It could 24 be concluded that the main partition mechanism in Zaragoza aerosols was explained by 25 adsorption onto the soot carbon. However, Kp modelled values were affected by the 26 different thermodynamic parameters related to soot types. 27The influence of the organic matter and elemental carbon fractions on the Kp modelling 28 was also studied. The different particle characteristics, local factors, the presence of non 29 exchangeable fraction and non equilibrium were considered like main keys to explain 30 deviations of the experimental Kp values from predictions according to models. 31 32

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“…Particle-gas distributions are inversely related to temperature, as first demonstrated by Yamasaki et al (1982):…”

Section: Temperature Dependence Of Partition Constantmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Some inferences on the mechanism of atmospheric gas/particle partitioning of polycyclic aromatic hydrocarbons (PAH) at Zaragoza (Spain)

et al. 2008

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“…Atmospheric outflow of PAHs from China was estimated to be 8092 tons/yr (Lang et al, 2008). It is well known that PAHs are carcinogenic, mutagenic and toxic to organisms and humans and widely distributed in various environmental media, which is apparently the main cause why PAHs have been comprehensively investigated (Birkholz et al, 1988;Lake et al, 1979;Larsen and Baker, 2003;Yamasaki et al, 1982). In addition, PAHs can also serve as geochemical markers for assessing anthropogenic influences within a specific environmental medium because they are closely related to anthropogenic combustion processes (Mai et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Polycyclic aromatic hydrocarbons (PAHs) in continental shelf sediment of China: Implications for anthropogenic influences on coastal marine environment

Liu¹,

Wang²,

Wei³

et al. 2012

Environmental Pollution

134

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“…In the real environment, PACs with more than 4 rings, including reactive BaP, PER, and DahA, are mainly associated with particulate matter (Su et al, 2006;Yamasaki et al, 1982) and hence suffer from O 3 degradation to a lesser extent as they are partially shielded from gaseous oxidants by black carbon, organic matter, and the accumulation of atmospheric reaction products on the surface. (Jariyasopit et al, 2014;Lammel et al, 2009;Zhou et al, 2012) Furthermore, it is Fig.…”

Section: And Si2 Supportingmentioning

confidence: 99%

Stability of polycyclic aromatic compounds in polyurethane foam-type passive air samplers upon O3 exposure

Jariyasopit

Liggio

Harner

2015

Atmospheric Environment

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Effects of ambient temperature on aspects of airborne polycyclic aromatic hydrocarbons

Cited by 686 publications

References 9 publications

Some inferences on the mechanism of atmospheric gas/particle partitioning of polycyclic aromatic hydrocarbons (PAH) at Zaragoza (Spain)

Some inferences on the mechanism of atmospheric gas/particle partitioning of polycyclic aromatic hydrocarbons (PAH) at Zaragoza (Spain)

Polycyclic aromatic hydrocarbons (PAHs) in continental shelf sediment of China: Implications for anthropogenic influences on coastal marine environment

Stability of polycyclic aromatic compounds in polyurethane foam-type passive air samplers upon O3 exposure

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