J 2016

One-year study of polycyclic aromatic compounds at an urban site in Grenoble (France): Seasonal variations, gas/particle partitioning and cancer risk estimation

TOMAZ, Sophie; Pourya SHAHPOURY; Jean-Luc JAFFREZO; Gerhard LAMMEL; Emilie PERRAUDIN et al.

Základní údaje

Originální název

One-year study of polycyclic aromatic compounds at an urban site in Grenoble (France): Seasonal variations, gas/particle partitioning and cancer risk estimation

Autoři

TOMAZ, Sophie; Pourya SHAHPOURY; Jean-Luc JAFFREZO; Gerhard LAMMEL; Emilie PERRAUDIN; Eric VILLENAVEEMILIE a Alexandre ALBINET

Vydání

Science of the Total Environment, AMSTERDAM, Elsevier, 2016, 0048-9697

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30304 Public and environmental health

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.900

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/16:00093433

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

PAH; OPAH; NPAH; Gas/particle partitioning model; Aerosol; Air quality

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 9. 4. 2017 10:11, Ing. Andrea Mikešková

Anotace

V originále

21 PAHs, 27 oxy-PAHs and 32 nitro-PAHs were measured every third day over a year in both gaseous (G) and particulate PM10 (P) phases in ambient air of Grenoble (France). Mean total concentrations (G + P) of PAHs and oxy-PAHs were in the same range and about 10 ng m(-3). Nitro-PAHs were 50 to 100 times less concentrated averaging 100 pg m(-3). Polycyclic aromatic compound (PAC) concentrations were 5 to 7 times higher in "cold" period (October to March) than in "warm" period (April to September). Seasonal variations may be explained by higher primary emissions from residential heating, especially biomass burning in "cold" season. Meteorological conditions and influence of the geomorphology around Grenoble, with the formation of thermal inversion layers leading to the stagnation of pollutants, were additional key parameters. Maximum individual PAC concentrations were observed during two PM10 pollution events in December and February-March. Chemical processes and secondary formation of oxy-and nitro-PAH were probably enhanced by the accumulation of the pollutants during these events. PAC gas/particle partitioning depended on compound molecular weight and vapour pressure. Gas/particle partitioning of oxy- and nitro-PAHs were evaluated using a multi-phase poly-parameter linear free energy relationship model. The PAC cancer risk was assessed using toxic equivalency factors available in the literature (19 PAHs, 10 nitro-PAHs and 1 oxy- PAH). Overall, particle-bound PACs contributed about 76% of the cancer risk. While PAHs accounted for most of the total PAC cancer risk, oxy- and nitro-PAHs could account for up to 24%. The risk quantification across substance classes is limited by toxicological data availability.