Kinetic behavior of non-volatile PAHs associated with urban aerosol

Karali, Dimitra; Rapsomanikis, S.; Christoforidis, A.

doi:10.1007/s11869-018-0590-4

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…Lighter compounds are volatile and primarily present in gaseous phase. Hence, they are widely dispersed in the atmosphere and can be washed out by rain (Karali et al 2018). Heavier compounds, on the other hand, are characterised by a higher affinity towards solid phase and can get readily adsorbed on particulate matter, which increases their persistence in the environment.…”

Section: Introductionmentioning

confidence: 99%

Sources, deposition flux and carcinogenic potential of PM2.5-bound polycyclic aromatic hydrocarbons in the coastal zone of the Baltic Sea (Gdynia, Poland)

Skalska

Lewandowska

Staniszewska

et al. 2019

Air Qual Atmos Health

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Concentrations of 16 PAHs of different molecular weight and carcinogenic potency were measured in PM2.5 aerosols collected in the coastal zone of southern Baltic Sea (Gdynia, Poland) during the end of the heating and beginning of the non-heating season of 2012. Obtained results showed that coal combustion (pyrogenic source) contributed to the highest emission of PAHs during the heating season. However, similar concentrations of highly carcinogenic PAHs were detected in the non-heating period. The analysis of prevailing wind directions, air mass trajectories and diagnostic PAH ratios revealed that in addition to land transport emission (mainly from diesel vehicles), the increase in sea shipping traffic during the non-heating season contributed to the high concentrations of detected carcinogenic PAHs. We conclude that the increasing maritime activity in the southern Baltic Sea region might have an adverse effect on both environmental and human health. Therefore, it should receive more attention by the Polish government as a pollutant source.

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Section: Introductionmentioning

confidence: 99%

Sources, deposition flux and carcinogenic potential of PM2.5-bound polycyclic aromatic hydrocarbons in the coastal zone of the Baltic Sea (Gdynia, Poland)

Skalska

Lewandowska

Staniszewska

et al. 2019

Air Qual Atmos Health

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Origins of regulated semi-volatile PAHs and metals near an industrial area and a highway in the region of Alexandroupolis, Greece

Karali

Loupa

Rapsomanikis

2019

Air Qual Atmos Health

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Sources of PM2.5-Associated PAHs and n-alkanes in Changzhou China

Sun

et al. 2021

Atmosphere

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Polycyclic aromatic hydrocarbons (PAHs) and n-alkanes are important specific organic constituents in fine particulate matter (PM2.5). Seventy-five PM2.5 samples were collected in Spring Changzhou, to investigate the concentrations and sources of n-alkanes (C9–C40) and PAHs. The average concentrations of total PAHs (∑PAHs) and n-alkanes (∑n-alkanes) were 4.37 ± 4.95 ng/m3 and 252.37 ± 184.02 ng/m3, ranging from 0.43 to 22.22 ng/m3 and 57.37 to 972.17 ng/m3, respectively. The average concentrations of ∑n-alkanes and ∑PAHs were higher in severely polluted days (PM2.5 ≥ 150 μg/m3) in comparison to other days. Up to 85% of PAHs were four- and five-ring compounds, and the middle-chain-length n-alkanes (C25–C35) were the most abundant species (80.9%). The molecular distribution of n-alkanes was characterized by odd-number carbon predominance (carbon preference index, CPI > 1), with a maximum centered at C27, C29, and C31 revealing a significant role of biogenic sources. Principal component analysis suggested that the biogenic sources that contributed the most to n-alkanes and PAHs were from coal combustion (46.3%), followed by biomass burning (16.0%), and vehicular exhaust (10.3%). The variation in the concentration of n-alkanes and PAHs from different air mass transports was not agreement with the change in PM2.5 mass, indicating that regional transport had important impacts on the characterization of PM2.5. The results of our study can provide useful information for evaluating the influence of anthropogenic and biogenic activities on organic matters (n-alkanes and PAHs).

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Kinetic behavior of non-volatile PAHs associated with urban aerosol

Cited by 4 publications

References 32 publications

Sources, deposition flux and carcinogenic potential of PM2.5-bound polycyclic aromatic hydrocarbons in the coastal zone of the Baltic Sea (Gdynia, Poland)

Sources, deposition flux and carcinogenic potential of PM2.5-bound polycyclic aromatic hydrocarbons in the coastal zone of the Baltic Sea (Gdynia, Poland)

Origins of regulated semi-volatile PAHs and metals near an industrial area and a highway in the region of Alexandroupolis, Greece

Sources of PM2.5-Associated PAHs and n-alkanes in Changzhou China

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