|
THE
Bureau of Fisheries and Aquatic Resources (BFAR) assures
the public that freshwater fishes such as dalag, bangus,
tilapia, ayungin, big head and common carp caught or
farmed in the waters of Laguna de Bay are safe for human
consumption.
In a
study conducted by BFAR Fisheries Product Testing
Laboratory chief Belinda Raymundo, the presence of heavy
metals in fish and water samples collected in different
stations along the lake revealed that these are all
within the standard limits set by the United Nations
Food and Agriculture Organization (UN-FAO).
According to Raymundo, the study was conducted in
response to the concerns raised by some sectors on the
possible presence of high levels of heavy metals such as
lead, mercury and cadmium in fish due to the alleged
worsening condition of the lake.
Results
of the studies showed that mercury in the fish samples
are way below the standard allowable limit of 0.05
parts per million (ppm) prescribed in the FAO Circular
825, Food Regulations Standard Applied to Fish.
Laboratory tests showed that the amount of mercury in
the 28 fish samples taken ranged only from 0.00015 ppm
to 0.0011 ppm.
Likewise, the levels of lead and cadmium are also below
the tolerable limits of 0.3 ppm and 0.5 ppm.
Raymundo
also explained the water samples taken from the surface,
middle and bottom portions of the lake showed mercury
content ranging from less than the detection limit of
0.01 ppm to 0.004 ppm, which does not exceed the limit
of 0.002 ppm set by the Department of Environment and
Natural Resources in its Administrative Order 34,
series of 1990, stating the lake water could still be
considered as suitable for the propagation and growth of
fish and other aquatic resources.
“We
conducted the fish and water testings in the lake last
year in October and this year in the sampling sites,
which includes Siniloan, Pakil, Paete and Los Baños in
Laguna, and Binangonan, Cardona and Tanay in Rizal.
The fish
samples include tilapia, milkfish, dalag, ayungin,
kanduli, bighead and common carpa caught from open water
in fish pens and cages. We found that fish from Laguna
de Bay is safe,” Raymundo added. |