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  1. Article ; Online: Size-dependent in vitro inhalation bioaccessibility of PAHs and O/N PAHs - Implications to inhalation risk assessment.

    Besis, Athanasios / Gallou, Domniki / Avgenikou, Anna / Serafeim, Eleni / Samara, Constantini

    Environmental pollution (Barking, Essex : 1987)

    2022  Volume 301, Page(s) 119045

    Abstract: Size segregated samples ( ... 7.2 μm) of atmospheric particulate matter (APM) were collected at a traffic site in the urban agglomeration of Thessaloniki, northern Greece, during the cold and the warm period ... ...

    Abstract Size segregated samples (<0.49, 0.49-0.95, 0.95-1.5, 1.5-3.0, 3.0-7.2 and > 7.2 μm) of atmospheric particulate matter (APM) were collected at a traffic site in the urban agglomeration of Thessaloniki, northern Greece, during the cold and the warm period of 2020. The solvent-extractable organic matter was analyzed for selected organic contaminants including polycyclic aromatic hydrocarbons (PAHs), and their nitro- and oxy-derivarives (NPAHs and OPAHs, respectively). Mean concentrations of ∑
    MeSH term(s) Air Pollutants/analysis ; Environmental Monitoring ; Particulate Matter/analysis ; Polycyclic Aromatic Hydrocarbons/analysis ; Risk Assessment
    Chemical Substances Air Pollutants ; Particulate Matter ; Polycyclic Aromatic Hydrocarbons
    Language English
    Publishing date 2022-02-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2022.119045
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2599: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article: Size-dependent in vitro inhalation bioaccessibility of PAHs and O/N PAHs - Implications to inhalation risk assessment

    Besis, Athanasios / Gallou, Domniki / Avgenikou, Anna / Serafeim, Eleni / Samara, Constantini

    Environmental pollution. 2022 May 15, v. 301

    2022  

    Abstract: Size segregated samples ( ... 7.2 μm) of atmospheric particulate matter (APM) were collected at a traffic site in the urban agglomeration of Thessaloniki, northern Greece, during the cold and the warm period ... ...

    Abstract Size segregated samples (<0.49, 0.49–0.95, 0.95–1.5, 1.5–3.0, 3.0–7.2 and > 7.2 μm) of atmospheric particulate matter (APM) were collected at a traffic site in the urban agglomeration of Thessaloniki, northern Greece, during the cold and the warm period of 2020. The solvent-extractable organic matter was analyzed for selected organic contaminants including polycyclic aromatic hydrocarbons (PAHs), and their nitro- and oxy-derivarives (NPAHs and OPAHs, respectively). Mean concentrations of ∑₁₆PAHs, ∑₆NPAHs and ∑₁₀OPAHs associated to total suspended particles (TSP) were 18 ng m⁻³, 0.2 ng m⁻³ and 0.9 ng m⁻³, respectively, in the cold period exhibiting significant decrease (6.4, 0.2 and 0.09 ng m⁻³, respectively) in the warm period. The major amount of all compounds was found to be associated with the alveolar particle size fraction <0.49 μm. The inhalation bioaccessibility of PAHs and O/N PAHs was measured in vitro using two simulated lung fluids (SLFs), the Gamble's solution (GS) and the artificial lysosomal fluid (ALF). With both SLFs, the derived bioaccessible fractions (BAFs) followed the order PAHs > OPAHs > NPAHs. Although no clear dependence of bioaccessibility on particle size was obtained, increased bioaccessibility of PAHs and PAH derivatives in coarse particles (>7.2 μm) was evident. Bioaccessibility was found to be strongly related to the logKOW and the water solubility of individual compounds hindering limited mobilization of the most hydrophobic and less water-soluble compounds from APM to SLFs. The lifetime cancer risk due to inhalation exposure to bioaccessible PAHs, NPAHs and OPAHs was estimated and compared to those calculated from the particulate concentrations of organic contaminants.
    Keywords bioavailability ; cold ; hydrophobicity ; inhalation exposure ; lungs ; organic matter ; particle size ; particulates ; pollution ; risk ; risk assessment ; traffic ; water solubility ; Greece
    Language English
    Dates of publication 2022-0515
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2022.119045
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    In stock of ZB MED Bonn / Germany

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  3. Article ; Online: Hazardous organic pollutants in indoor dust from elementary schools and kindergartens in Greece: Implications for children's health.

    Besis, Athanasios / Avgenikou, Anna / Pantelaki, Ioanna / Serafeim, Eleni / Georgiadou, Eleni / Voutsa, Dimitra / Samara, Constantini

    Chemosphere

    2022  Volume 310, Page(s) 136750

    Abstract: Children spend a significant portion of their day in school, where they may be exposed to hazardous organic compounds accumulated in indoor dust. The aim of this study was to evaluate the concentrations of major hazardous organic contaminants in dust ... ...

    Abstract Children spend a significant portion of their day in school, where they may be exposed to hazardous organic compounds accumulated in indoor dust. The aim of this study was to evaluate the concentrations of major hazardous organic contaminants in dust collected from kindergartens and elementary schools in Northern Greece (n = 20). The sum concentrations of 20 targeted polybrominated diphenyl ether congeners (∑
    MeSH term(s) Child ; Adult ; Humans ; Dust/analysis ; Environmental Pollutants ; Air Pollution, Indoor/analysis ; Child Health ; Greece ; Environmental Exposure/analysis ; Flame Retardants/analysis ; Halogenated Diphenyl Ethers/analysis ; Schools ; Polycyclic Aromatic Hydrocarbons ; Environmental Monitoring
    Chemical Substances Dust ; Environmental Pollutants ; Flame Retardants ; Halogenated Diphenyl Ethers ; Polycyclic Aromatic Hydrocarbons
    Language English
    Publishing date 2022-10-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.136750
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  4. Article ; Online: Size-Resolved Redox Activity and Cytotoxicity of Water-Soluble Urban Atmospheric Particulate Matter: Assessing Contributions from Chemical Components.

    Besis, Athanasios / Romano, Maria Pia / Serafeim, Eleni / Avgenikou, Anna / Kouras, Athanasios / Lionetto, Maria Giulia / Guascito, Maria Rachele / De Bartolomeo, Anna Rita / Giordano, Maria Elena / Mangone, Annarosa / Contini, Daniele / Samara, Constantini

    Toxics

    2023  Volume 11, Issue 1

    Abstract: Throughout the cold and the warm periods of 2020, chemical and toxicological characterization of the water-soluble fraction of size segregated particulate matter (PM) ( ... 7.2 μm) was conducted in the urban ... ...

    Abstract Throughout the cold and the warm periods of 2020, chemical and toxicological characterization of the water-soluble fraction of size segregated particulate matter (PM) (<0.49, 0.49−0.95, 0.95−1.5, 1.5−3.0, 3.0−7.2 and >7.2 μm) was conducted in the urban agglomeration of Thessaloniki, northern Greece. Chemical analysis of the water-soluble PM fraction included water-soluble organic carbon (WSOC), humic-like substances (HULIS), and trace elements (V, Cr, Mn, Fe, Ni, Cu, Zn, As, Cd and Pb). The bulk (sum of all size fractions) concentrations of HULIS were 2.5 ± 0.5 and 1.2 ± 0.3 μg m−3, for the cold and warm sampling periods, respectively with highest values in the <0.49 μm particle size fraction. The total HULIS-C/WSOC ratio ranged from 17 to 26% for all sampling periods, confirming that HULIS are a significant part of WSOC. The most abundant water-soluble metals were Fe, Zn, Cu, and Mn. The oxidative PM activity was measured abiotically using the dithiothreitol (DTT) assay. In vitro cytotoxic responses were investigated using mitochondrial dehydrogenase (MTT). A significant positive correlation was found between OPmDTT, WSOC, HULIS and the MTT cytotoxicity of PM. Multiple Linear Regression (MLR) showed a good relationship between OPMDTT, HULIS and Cu.
    Language English
    Publishing date 2023-01-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2733883-6
    ISSN 2305-6304 ; 2305-6304
    ISSN (online) 2305-6304
    ISSN 2305-6304
    DOI 10.3390/toxics11010059
    Database MEDical Literature Analysis and Retrieval System OnLINE

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