Heavy metals in river and coast sediments of the Jakarta Bay region (Indonesia) - Geogenic versus anthropogenic sources.
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.
Institute of Applied Mineralogy and Mineral Deposits, RWTH Aachen University, Germany. Electronic address: sindern@rwth-aachen.de.
Sven
S
Sindern
Institute of Applied Mineralogy and Mineral Deposits, RWTH Aachen University, Germany.
Martin
M
Tremöhlen
Institute of Geology and Geochemistry of Petroleum and Coal (GGPC), RWTH Aachen University, Lochnerstraße 4-20, 52056 Aachen, Germany. Electronic address: larissa.dsikowitzky@emr.rwth-aachen.de.
Larissa
L
Dsikowitzky
Institute of Applied Mineralogy and Mineral Deposits, RWTH Aachen University, Germany.
Lars
L
Gronen
Institute of Geology and Geochemistry of Petroleum and Coal (GGPC), RWTH Aachen University, Lochnerstraße 4-20, 52056 Aachen, Germany. Electronic address: jan.schwarzbauer@emr.rwth-aachen.de.
Jan
J
Schwarzbauer
Research Center and Development for Marine and Fisheries Product Processing and Biotechnology (BBP4BKP), Ministry of Marine Affairs and Fisheries, Jl. K.S. Tubun, Petamburan VI, Jakarta 10260, Indonesia.
Tuti Hartati
TH
Siregar
Research Center and Development for Marine and Fisheries Product Processing and Biotechnology (BBP4BKP), Ministry of Marine Affairs and Fisheries, Jl. K.S. Tubun, Petamburan VI, Jakarta 10260, Indonesia.
Farida
F
Ariyani
Research Center for Fisheries Management and Conservation (P4KSI), Ministry of Marine Affairs and Fisheries, Jl. Pasir Putih II, Ancol Timur, Jakarta 14430, Indonesia.
Hari Eko
HE
Irianto
D061006:Bays / Q000737:chemistry*; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D007214:Indonesia; D019216:Metals, Heavy / Q000032:analysis*; D052638:Particulate Matter / Q000032:analysis; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D019216:Metals, Heavy; D052638:Particulate Matter; D014874:Water Pollutants, Chemical
Coastal megacity; Heavy metals; Indonesia; Jakarta; River sediment; Tropical coastal ecosystem