@article{fdi:010087690,
  title = {{U}biquity of anthropogenic terpenoids in cities worldwide : emission ratios, emission quantification and implications for urban atmospheric chemistry},
  author = {{B}orbon, {A}. and {D}ominutti, {P}amela and {P}anopoulou, {A}. and {G}ros, {V}. and {S}auvage, {S}. and {F}arhat, {M}. and {A}fif, {C}. and {E}lguindi, {N}. and {F}ornaro, {A}. and {G}ranier, {C}. and {H}opkins, {J}. {R}. and {L}iakakou, {E}. and {N}ogueira, {T}. and dos {S}antos, {T}. {C}. and {S}alameh, {T}. and {A}rmangaud, {A}. and {P}iga, {D}. and {P}errussel, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}erpenoids (isoprene and monoterpenes) are highly reactive {V}olatile {O}rganic {C}ompounds ({VOC}s) known for decades for their biogenic origin. {H}ere, we discuss the nature and magnitude of their anthropogenic emissions. {W}e compiled and re-analyzed 14 data sets of in situ {VOC} observations collected over the last decade in contrasting urban areas from mid-latitudes to subtropical regions. {W}e show the systematic presence of anthropogenic terpenoids in urban ambient air with clear covariations with anthropogenic compounds ({R}-2 > 0.50) even during mid-latitude winters. {D}espite the emerging importance of monoterpene emissions from consumer products in {N}orth {A}merican cities, there is some evidence of monoterpene emissions from tailpipe exhaust in cities of the developing world. {T}he traffic-related fraction of monoterpenes is estimated and can account for up to 40% of their ambient levels. {T}he anthropogenic emission ratios ({ER}) of some terpenoids (isoprene, a-pinene and limonene) are estimated and spatially compared. {T}he anthropogenic emissions of terpenoids are indirectly estimated from those {ER} combined to regional and global emission inventories ({CAMS}-{GLOB}-{ANT}_v4.2) at urban and country scale focusing on {F}rance, {L}ebanon, and {V}ietnam. {T}hose anthropogenic emissions do not represent more than 3% of other anthropogenic {VOC} emissions. {H}owever, they dominate by one to three orders of magnitude the reactivity of other anthropogenic {VOC}s regarding {NO}3 oxidation and ozonolysis. {T}his study raises two questions which need further investigations in the future: (a) the significance of terpenoid emissions from traffic, especially in urban areas of the developing world and (b) the role of anthropogenic terpenoids in nighttime and wintertime atmospheric chemistry at mid-latitudes.},
  keywords = {{MONDE} ; {FRANCE} ; {LIBAN} ; {VIET} {NAM}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {A}tmospheres},
  volume = {128},
  numero = {7},
  pages = {e2022{JD}037566 [22 p.]},
  ISSN = {2169-897{X}},
  year = {2023},
  DOI = {10.1029/2022jd037566},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087690},
}