Data/hora: 07/06/2024 07:58:47

Provedor de dados: | 5
País: | France
Título: | Détermination de la pollution chimique des baies de Jakarta, Banten, Cilacap (Indonésie). Hydrocarbures, organochlores, métaux
Autores: | Martin, Jean-louis; Marchand, Michel; Le Guellec, Anne-marie; Caprais, Jean-claude.
Data: | 1983-09
Ano: | 1983
Resumo: | Analyses of pesticides, polychlorobiphenyls (PCB's) and hydrocarbons have been carried out in sediments and water samples from the bays of Jakarta, Banten and Cilacap. Heavy metals (Hg, Cu, Mn, Zn, Fe, Pb, Cd, Ni, Co and Cr) have been analysed in sediment samples fram the same areas. - Organic pollutants :  The results show that for pesticides, PCB and hydrocarbons, in water and in sediments, there is no significant pollution for the bays of Banten, Cilacap and Jakarta. The bay of Banten, where most of the concentrations are under the detection limits, that is ta say 2 ug/kg for the sediment and 2 ng/1 for the sea water, can be considered as a reference area. For total hydrocarbons and DDT, the bays of Cilacap and Jakarta show concentrations which can be considered as significant of a very light chronic contamination. PCB's which are related ta industrial and urban activities have only been identified in two restricted areas o.f the bay of Jakarta, near the harbour and the city. PCB's were not detected in the bays of Banten and Cilacap. The presence of anthropogenic hydrocarbons, in low concentrations, seems ta be related ta the navigation in the bays of Jakarta and Cilacap. The inputs from harbours, ail raffinery and sewages are identified but are geographically and quantitatively very restricted. DDT has been identified in sediment in very low concentrations in Cilacap and Jakarta. Furthermore, the high percentage of the degradation metabolites of DDT (DDD and ODE) shows that DDT in those bays is not related to recent inputs. - Heavy metals : Two kinds of bays can be considered. On one hand, the bays of Banten and Cilacap, on the other hand, the bay of Jakarta. For Banten and Cilacap, all the concentrations of heavy metals can be considered as normal values, or even low values, cornpared to those observed in the litterature for unpolluted areas. For Banten and Cilacap, it has not been possible to point out the influence of urban and harbour activities on the concentrations of heavy metals. The concentrations of heavy metals in the bay of Banten are very low. This bay could be considered as a reference area. In the bay of Jakarta, except for mercury, the concentrations of heavy metals can be considered as normal concentrations, and do not give evidence of a contamination of the baYe Nevertheless, the influence of the urban and harbour activities can be pointed out. As a matter of fact, for lead, copper and zinc, the concentrations near the harbour are higher, even if they cannot be considered as a pollution, than those observed elsewhere in the bay. For mercury, most of the concentrations observed in the bay of Jakarta can be considered as normal concentrations, even if these are always higher than those in the bays of Banten and Cilacap. Nevertheless, near the harbour and near Jakarta, sorne of the concentrations can be considered as high values, giving evidence of an "overloadll, and perhaps of a contamination, of this area by mercury.  The analyses of organic and mineral compounds and elements (hydrocarbons, Pesticides, PCB's, Cu, Mn, Zn, Fe, Pb, Cd, Ni, Co, Cr) in the bays of Jakarta, Banten and Cilacap do not give evidence of a pollutiOn of these areas. For mercury, the high concentrations near the harbour and the city of Jakarta must be pointed out.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/00094/20546/18217.pdf
Relação: | http://archimer.ifremer.fr/doc/00094/20546/
Formato: | application/pdf
Fonte: | 1983 Ifremer