31 research outputs found
Environs de Cadiz... rectifié d'après un grand nombre de renseignements / par Testu ; l'ingénieur géographe et dessiné par Roché, garde au corps royal du génie. Novembre 1823
Les faunes de grands mammifères de la Caune de l’Arago (Tautavel) dans le cadre biochronologique des faunes du Pléistocène moyen italien - An interpretation of a large mammal fauna from la Caune de l'Arago (France) in comparison to a Middle Pleistocene biochronological frame from Italy
Rapport intermédiaire 2018 du Programme Collectif de Recherches triennal 2017-2019 "Le monde moustérien méditerranéen entre Rhône et Pyrénées"
Rapport intermédiaire 2018 du Programme Collectif de Recherches triennal 2017-2019 "Le monde moustérien méditerranéen entre Rhône et Pyrénées"
Origine des excès extrêmes de 17O et 18O dans la météorite de Murchison : Minéralogie et composition isotopique de Si, Mg, C, N, S, Cl et H.
Grotte de la Crouzade (Gruissan, Aude), rapport de fouille programmée triennale 2016-2018, rapport final 2018
Trace element contamination in fish impacted by bauxite red mud disposal in the Cassidaigne canyon (NW French Mediterranean)
From 1966 to 2015, the Gardanne alumina refinery discharged some 20 million tons of bauxite residue (called red mud) into the Cassidaigne Canyon (northwest French Mediterranean) with impacts on local ecosystem functioning. Although these red muds contained high levels of trace elements (TE), in particular titanium (Ti), vanadium (V), aluminum (Al) and arsenic (As), surprisingly, their impacts on fish contamination levels and the risk related to fish consumption have been little studied until now. Here, 11 trace elements (Al, As, Cd, Cr, Co, Cr, Mn, Ni, Pb, Ti and V) were analyzed in muscle and, when possible, liver, from 1308 fish of 26 species from an impacted zone in the vicinity of the Cassidaigne Canyon and a reference zone, unaffected by red mud disposals. Moreover, 66 arsenic speciation analyses were performed. Although the impact of human activities on the levels of fish contamination by trace elements is generally not easy to assess in situ because it is blurred by interaction with biological effects, we highlighted significant contamination of the fish species collected from the Cassidaigne Canyon, especially by the main trace elements attributable to the discharges of the Gardanne alumina refinery, namely Al, V and Ti. Moreover, inorganic toxic As concentrations were higher in the impacted zone. The results of this baseline research also confirmed the concern previously raised regarding Hg in Mediterranean organisms and that trace element contamination levels in fish are generally negatively related to fish length for all TE except Hg