Authors:
Salmita Salman
1
;
Achmad Sjarmidi
1
and
Salman
2
Affiliations:
1
Ecology Research Group, School of Life Science and Technology, Bandung Institute of Technology, Bandung, Indonesia, Indonesia
;
2
Faculty of Agriculture, Universitas Islam Riau, Pekanbaru, Indonesia
Keyword(s):
Biosurvey, Heavy Metals, Jakarta Bay, Reclamation
Abstract:
Man-made islands allegedly alter the coastline that slowing pollutants retention time. Green mussels (Perna
viridis) are one of the organisms known to accumulate heavy metals. Biosurvey needs to be conducted
to acquire information on heavy metal content in man-made habitat and biota. The aims of this research
are to identify the water quality related to heavy metal presence; to measure heavy metal content in green
mussels (Perna viridis) around the reclaimed island to determine heavy metal level pollution on reclamation
island. Sampling was conducted in August 2017 in reclamation islands C and D. Heavy metal measurement
values refer to the SNI method 3554-2015. Data of heavy metal content in water, sediment, and green
mussels were analyzed with quantitative descriptive method. The results show biological oxygen demands
(BOD), and chemical oxygen demands (COD) has exceeded the water quality standard which indicates a high
level of pollution. The results of the examination of the heavy
metal in seawater show that mercury (Hg),
cadmium (Cd), and lead (Pb) are below the tools detection limit (<0.0002; <0.00011; <0.00086 mg/L) and
below seawater pollution standard for biota. Concentrations of heavy metals mercury, cadmium, and lead in
sediments around the reclaimed islands and Teluk Naga area are below heavy metal pollution standards for
sediments. Mercury (Hg) levels below the tools detection limit (<0.0004 mg/L); cadmium (Cd) ranges from
0.02-0.20 mg/L; lead (Pb) ranges from 0.50 to 5.46 mg/L. Heavy metals examination in green mussels indicate
that mercury (Hg), cadmium (Cd), and lead (Pb) are below the tools detection limit (<0.001; <0.00011;
<0.00086 mg/L) and below the heavy metal pollution standard on bivalves. Generally, water and sediment
around the reclaimed islands and natural habitat in August 2017 are not polluted by heavy metals so there is no
harm to biota. Heavy metals quality in water, sediment and mussels are below the pollution standard and based
on the USEPA system belong to grade A. The heavy metal index on Reclaimed Island is 18 and considered
good. Based on the results obtained, it can be concluded that the reclaimed islands C and D in August 2017
were safe from heavy metal mercury, cadmium, and lead pollutions.
(More)