@inproceedings{fdi:010072131,
  title = {{A} case study of aerosol trace element deposition to {M}oroccan coastal waters : lessons from the {AWA} {P}roject [r{\'e}sum{\'e}]},
  author = {{S}helley, {R}.{U}. and {S}arthou, {G}. and {T}ymen, {G}. and {L}osno, {R}. and {T}ito de {M}orais, {L}uis and {B}enhra, {A}. and {B}outhir, {F}.{Z}. and {M}achu, {E}ric and {M}essager, {C}. and {G}orgues, {T}homas and {D}iadhiou, {H}. and {B}rehmer, {P}atrice},
  editor = {},
  language = {{ENG}},
  abstract = {{A}erosol deposition is an important source of trace elements ({TE}s) to the surface ocean. {D}ue to the proximity to the {S}ahara and {S}ahel {D}eserts, the {N}orth {A}tlantic receives some of the highest inputs of mineral dust globally (~100- 220 {T}g yr-1). {I}n terms of biological production, this significant input of {TE}s contributes to the greater efficiency of the {C}anary {C}urrent {E}astern {B}oundary {U}pwelling {S}ystem ({CC}-{EBUS}) relative to its {P}acific counterpart; both of which support socio-economically important fisheries. {H}owever, mineral dust is just one component of atmospheric aerosols. {H}uman activities (e.g. fossil fuel combustion, agricultural practices) also contribute to the atmospheric load, resulting in changes in the elemental ratios with respect to crustal composition. {I}n order to investigate the {TE} composition of aerosols to the {CC}-{EBUS}, aerosol samples were collected from three coastal locations in {M}orocco ({A}gadir, {L}aayoune and {D}akhla) as part of the {EPURE} project, over an annual cycle ({M}arch 2015-2016). {H}ere, we present {TE} composition data, with a focus on cadmium ({C}d); an element of concern for human health, which is toxic to phytoplankton above a certain threshold, despite being essential for carbon uptake in some genera. {A} poor correlation between aerosol aluminium ({A}l; a tracer for mineral dust inputs) and {C}d (r2 = 0.31, {P} = 0.091) suggests that mineral dust was not the dominant source of {C}d during this study. {H}owever, coincident peaks of {A}l and {C}d did occur occasionally, suggesting that during dust events mineral dust could be an important source of {C}d. {I}n addition, despite the presence of phosphate mining activities south of {L}aayoune, we did not observe significantly different ratios of {C}d/{A}l relative to the other two stations. {U}sing aerosol samples collected during the {AWA} campaigns off {S}enegal (2013, 2014) we have estimated the solubility of {TE}s from {W}est {A}frican/{E}uropean aerosols to provide an estimate of the flux of potentially bioavailable {TE}s for marine micro-organisms.},
  keywords = {{MAROC} ; {ATLANTIQUE}},
  numero = {},
  pages = {87--88},
  booktitle = {{I}nternational conference {ICAWA} 2016 : extended book of abstract : the {AWA} project : ecosystem approach to the management of fisheries and the marine environment in {W}est {A}frican waters},
  year = {2017},
  ISBN = {978-2-9553602-0-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072131},
}