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DOI	10.1016/j.atmosenv.2020.117931
	PAHs, PCBs and organochlorine pesticides in the atmosphere of Eastern Mediterranean: Investigation of their occurrence, sources and gas-particle partitioning in relation to air mass transport pathways
	Iakovides M.; Apostolaki M.; Stephanou E.G.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	Thirty-four air samples were collected from 2013 to 2015, at a semi-rural site in Eastern Mediterranean (Island of Crete), to study the atmospheric occurrence of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in the gas and particulate phase. Average levels (gaseous and particulate phase) of PAHs (36 compounds, 11–18 ng/m3), PCBs (49 congeners, 77–93 pg/m3) and OCPs (23 substances, 77–140 pg/m3) were comparable to those reported for similar locations worldwide. Multiple-linear regression analysis, performed to relate atmospheric concentrations with meteorological conditions, revealed as main controlling factors local sources for PAHs and long-range transport (LRT) for PCBs and OCPs. The consideration of parent-metabolite ratios for most OCPs excluded fresh inputs. The application of the potential source contribution function (PSCF) identified Black Sea and eastern Balkans as likely sources for PCBs and OCPs. Significant linear correlations (R2 = 0.79–0.98) were determined between the partitioning coefficients (logKp) and partial vapor pressures (logPL0) for most air samples for PAHs and PCBs excepting OCPs. Slope mr values were close to −1 for PAHs and OCPs indicating gas/particle partitioning close to equilibrium. The corresponding mr values for PCBs were shallower (<-0.60) denoting non-equilibrium conditions and potential sampling artefacts. The octanol-air partition coefficient absorption model, logKp-logKoa, did not offer robust evidence for the evaluation of the atmospheric partitioning of the studied compounds. Experimentally determined particle fractions (ϕ) fitted better with the typical remote and rural curves as predicted by the Junge-Pankow model for most PAHs and PCBs but not for OCPs. The Koa-fom absorptive model could not adequately simulate the measured ϕ values for the majority of the compounds. © 2020 Elsevier Ltd
关键词	Eastern Μediterranean Gas/particle partitioning OCPs PAHs PCBs Potential source contribution function
语种	英语
scopus关键词	Atmospheric movements; Linear regression; Metabolites; Organic pollutants; Particles (particulate matter); Pesticides; Polychlorinated biphenyls; Atmospheric concentration; Gas/particle partitioning; Multiple linear regression analysis; Nonequilibrium conditions; Organochlorine pesticides; Polychlorinated biphenyl (PCBs); Polycyclic aromatic hydrocarbons (PAHS); Potential source contribution function; Polycyclic aromatic hydrocarbons; octanol; organochlorine pesticide; polychlorinated biphenyl; polycyclic aromatic hydrocarbon; air mass; climate conditions; concentration (composition); long range transport; mass transport; Mediterranean environment; organochlorine pesticide; PAH; partition coefficient; partitioning; PCB; pollutant source; pollutant transport; air transportation; Article; atmosphere; concentration (parameter); gas; human; meteorology; partition coefficient; priority journal; vapor pressure; Aegean Islands; Balkans; Black Sea; Crete [Greece]; Greece
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248785
作者单位	Environmental Chemical Processes Laboratory (ECPL), Chemistry Department, University of Crete, Heraklion Crete, GR-70013, Greece
推荐引用方式 GB/T 7714	Iakovides M.,Apostolaki M.,Stephanou E.G.. PAHs, PCBs and organochlorine pesticides in the atmosphere of Eastern Mediterranean: Investigation of their occurrence, sources and gas-particle partitioning in relation to air mass transport pathways[J],2021,244.
APA	Iakovides M.,Apostolaki M.,&Stephanou E.G..(2021).PAHs, PCBs and organochlorine pesticides in the atmosphere of Eastern Mediterranean: Investigation of their occurrence, sources and gas-particle partitioning in relation to air mass transport pathways.ATMOSPHERIC ENVIRONMENT,244.
MLA	Iakovides M.,et al."PAHs, PCBs and organochlorine pesticides in the atmosphere of Eastern Mediterranean: Investigation of their occurrence, sources and gas-particle partitioning in relation to air mass transport pathways".ATMOSPHERIC ENVIRONMENT 244(2021).