Decline in heavy metal contamination in marine sediments in Jakarta Bay, Indonesia due to increasing environmental regulations
Journal
Estuarine, Coastal and Shelf Science
Journal Volume
92
Journal Issue
2
Pages
297-306
Date Issued
2011
Author(s)
Abstract
The 210Pb geochronology, heavy metal concentrations (Zn, Cu, and Pb), and stable Pb isotope ratios (206Pb/207Pb) of three sediment cores collected from Jakarta Bay were analyzed to decipher the history of heavy metal contamination in the period 1900-2006. The chemical and isotopic analyses clearly suggest that anthropogenic metal accumulation in the sediments began in the 1920s and increased greatly from the 1970s until the end of the 1990s. From the end of the 1990s to 2006, accumulation rates were constant or decreased for Zn and Pb near the coastal industrialized area. Comparison of economic data and sociological information suggests that the decline in the concentrations of heavy metals could be attributed to the stricter environmental regulations which were enforced at the end of 1990s. However, metal contamination is currently still an important cause of concern in dealing with environmental preservation and protection in Jakarta Bay. © 2011 Elsevier Ltd.
Subjects
210Pb dating; Contamination; Heavy metal; Jakarta Bay; Lead isotope ratio; Sediments
SDGs
Other Subjects
accumulation rate; anthropogenic effect; coastal protection; coastal zone; coastal zone management; copper; geochronology; industrialization; isotopic analysis; lead isotope; marine sediment; regulatory framework; sediment core; sediment pollution; stable isotope; zinc; Indonesia; Jakarta; Jakarta Bay
Type
journal article