期刊
MARINE POLLUTION BULLETIN
卷 110, 期 2, 页码 624-633出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.06.003
关键词
River sediment; Heavy metals; Coastal megacity; Tropical coastal ecosystem; Jakarta; Indonesia
资金
- German Federal Ministry of Education and Research (BMBF) [03F0641E]
- Indonesian Research and Development Center for Marine and Fisheries Product Processing and Biotechnology
- Indonesian Research Center for Fisheries Management and Conservation
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. (C) 2016 Elsevier Ltd. All rights reserved.
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