Heavy metals in river and coast sediments of the Jakarta Bay region (Indonesia) - Geogenic versus anthropogenic sources.
Mar Pollut Bull
; 110(2): 624-33, 2016 Sep 30.
Article
em En
| MEDLINE
| ID: mdl-27293077
ABSTRACT
Sediment geochemistry of the Jakarta region, a densely populated tropical coast, is studied - with particular focus on rivers discharging to Jakarta Bay. Weathering volcanics in the river catchment area control the composition of major elements, As, Cr and in part Cu. In contrast, Zn, Ni, Pb and partly Cu are affected by anthropogenic sources, mainly in central Jakarta City. The data reflect a high variability of local emission sources, among which metal processing industries, fertilizers or untreated animal waste may be important. In particular, the role of street dusts is emphasized. Locally, heavy metals reach levels considered to have adverse biological effects. River discharge leads to anthropogenic enrichment of heavy metals in the coastal sediments. Element data also show geogenic effects on the composition of the coastal sediments, such as mixing of detrital silicates with biogenic carbonates as well as suspended particulate matter from the ocean.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Monitoramento Ambiental
/
Baías
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Sedimentos Geológicos
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Metais Pesados
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Rios
País/Região como assunto:
Asia
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2016
Tipo de documento:
Article