@article{PAR00023089,
  title = {{S}ource apportionment of atmospheric {PM}10 oxidative potential : synthesis of 15 year-round urban datasets in {F}rance},
  author = {{W}eber, {S}. and {U}zu, {G}a{\¨e}lle and {F}avez, {O}. and {B}orlaza, {L}. {J}. {S}. and {C}alas, {A}. and {S}alameh, {D}. and {C}hevrier, {F}. and {A}llard, {J}. and {B}esombes, {J}. {L}. and {A}lbinet, {A}. and {P}ontet, {S}. and {M}esbah, {B}. and {G}ille, {G}. and {Z}hang, {S}. {W}. and {P}allares, {C}. and {L}eoz-{G}arziandia, {E}. and {J}affrezo, {J}. {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}eactive oxygen species ({ROS}) carried or induced by particulate matter ({PM}) are suspected of inducing oxidative stress in vivo, leading to adverse health impacts such as respiratory or cardiovascular diseases. {T}he oxidative potential ({OP}) of {PM}, displaying the ability of {PM} to oxidize the lung environment, is gaining strong interest in examining health risks associated with {PM} exposure. {I}n this study, {OP} was measured by two different acellular assays (dithiothreitol, {DTT}, and ascorbic acid, {AA}) on {PM}10 filter samples from 15 yearly time series of filters collected at 14 different locations in {F}rance between 2013 and 2018, including urban, traffic and {A}lpine valley site typologies. {A} detailed chemical speciation was also performed on the same samples, allowing the source apportionment of {PM} using positive matrix factorization ({PMF}) for each series, for a total number of more than 1700 samples. {T}his study then provides a large-scale synthesis of the source apportionment of {OP} using coupled {PMF} and multiple linear regression ({MLR}) models. {T}he primary road traffic, biomass burning, dust, {MSA}-rich, and primary biogenic sources had distinct positive redox activity towards the {OPDTT} assay, whereas biomass burning and road traffic sources only display significant activity for the {OPAA} assay. {T}he daily median source contribution to the total {OPDTT} highlighted the dominant influence of the primary road traffic source. {B}oth the biomass burning and the road traffic sources contributed evenly to the observed {OPAA}. {T}herefore, it appears clear that residential wood burning and road traffic are the two main target sources to be prioritized in order to decrease significantly the {OP} in western {E}urope and, if the {OP} is a good proxy of human health impact, to lower the health risks from {PM} exposure.},
  keywords = {{FRANCE}},
  booktitle = {},
  journal = {{A}tmospheric {C}hemistry and {P}hysics},
  volume = {21},
  numero = {14},
  pages = {11353--11378},
  ISSN = {1680-7316},
  year = {2021},
  DOI = {10.5194/acp-21-11353-2021},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00023089},
}