of lead bioaccumulation off llead d water t contamination t i ti iin
Sarangani Bay.
Lead (mg/L)or ppm Sources Tuna Processing
0.09
Aquaculture
0 23 0.23
Shipyard
0.29
Oil Depot & Power Plant
0.095
Market
0.24
Fish port
0.16
Slaugther House
0.09
Poultry/Chicken Dressing
01 0.1
Dry Dock
0.323
Detecting g and quantifying l d (Pb) metal lead t l in the liver of “Bodboron” and d “ Pirit”. Pi it”
How
do levels of lead in Skipjack tuna“Bodboron” differ from Frigate bonito “Pirit? Pirit? What is the level of Pb present in the liver of Skipjack tuna “Bodboron” Bodboron and Frigate bonito “ Pirit”
How
do this level of lead metal (Pb ) in the liver of Skipjack tuna and Frigate bonito compare with that of the acceptable level of Pb in fish set by BFAR and WHO.
Will provide information regarding the level of Pb in the fishes commonlyy sold in the Public Market of GSC.
The fish-eating public will be made aware as to the status of lead metal contamination of Pirit and Bodboron commonly sold in our Public Market. Market
Serve
as a basis for rational policies that would regulate p g the state of pollution of Sarangani Bay
formulate ordinances and laws that will regulate dumping of waste t materials t i l on the th waters t off GSC that are sources of these metals.
Will serve as reference to future researchers not only for lead metal currently investigated but also for other heavy metals that are also capable bl off contaminating i i the h fishes.
1.
The level of lead metal in Bodboron does not differ significantly from that of Pirit.
2.
The levels of lead metal (Pb)in the liver of K.pelamis (Skipjack tuna) and E. affinis (Frigate bonito) do not differ significantly with the acceptable levels of lead (Pb) in fish set by BFAR and WHO
GenSan Central Public Market
Skipjack “Bodboron” Frigate B it Bonito “Pirit”
S1 (20 samples of Skipjack) – Month 1 S2 (20 samples of Skipjack) – Month 2 S3 (20 samples of Skipjack) – Month 3
S1 (20 samples of Frigate bonito– Month 1 S2 (20 samples of Frigate bonito – Month 2 S3 (20 samples of Frigate bonito– Month 3
Level of Concentration of Pb
Acceptable levels safe for human consumption set by BFAR and WHO
Fish Sampling p g
Extraction and Sample Preparation
Inductively Coupled Mass Spectrometry
dry ash technique
Summary of Lead Levels Content Analyzed by Dole Chemistry Laboratory
October 2,2010
November 6, 2010
December 3, 2010
Bodboron
Not detected
Not detected
Not detected
Pirit
Not detected
Not detected
Not detected
Species of fish
L d metall was not d d Lead detected on 3 sampling periods
based on laboratory tests conducted by: Dole Philippine Incorporated Chemistry Laboratory
1.Bodboron and Pirit are pelagic fishes. National Oceanic and Atmospheric Administration, National Marine Services, Fish Watch. U.S. Seafood Facts (2009)
Sankar (2006)
2. Bodboron and Pirit that were used 2 for laboratory analysis were still immature or juvenile (20-30 (20 30 cm)
Yesaki 1989 p.17
3.
Bodboron and Pirit used may have
just entered the Sarangani Bay area and were immediately caught by the fisherman
4. Bodboron and Pirit may not be the kind of species that would consume lead-containing paints and g gasoline)) but materials ((such as p may take up other toxic metal present in the water. water
near-shore
water species of fish were also
tested for lead bioaccumulation to validate the reasons presented.
Bangsi,
Tulay, Bugaong
Figure 7. Photograph of bangsi, a resident fish of Sarangani Bay proven to contain significant amount of heavy metal unsafe for human consumption.
Figure 8. Photograph of tulay, a resident fish of Sarangani Bay proven to contain significant amount of heavy metal unsafe for human consumption.
Figure 9. Photograph of bugaong, a resident fish of Sarangani Bay proven to contain significant amount of heavy metal unsafe for human consumption.
Levels of lead Metals on Other Species of Fish S Species i off Fish Fi h
I Instrument D Detector
L d Metal Lead M l iin ppm
Bangsi
ICP – AES
54.267
Tulay
Bugaong
ICP – AES
ICP – AES
29.638
0.0007
These three fishes accumulated lead metal because they do not come from open sea but just dwell in the Sarangani Bay waters
Bodboron
and Pirit may have low probability
of accumulating lead and other toxic substances
they were pelagic and highly migratory
S Species i off Fi Fish h
Qt off llead Qty d metal t l
R Remarks k
Bodboron
0
No difference
Pirit
0
No difference
Si Since b th species both i d nott have do h values l f lead for l d bioaccumulation, the difference between the quantity of lead between them cannot be established.
Levels of lead metal in B db Bodboron and d Pirit
Not detected
Acceptable Level set by BFAR
0.5 ppm
Acceptable Level set by WHO
0.3 ppm
R Remarks k Bodboron and Pirit caught from September to December, 2010 are safe for human consumption
Bodboron and Pirit from General Santos City are proven safe for human consumption since it do not have any traces of lead concentration as revealed laboratory analyses.
Based on the foregoing findings of the study, it can be concluded that: Bodboron
and Pirit sold in the public market of General Santos City are safe for human consumption at present due to the absence of lead metal contamination. contamination
Since
there
is
no
value
of
lead
contamination in Bodboron and Pirit, the difference between their lead metal concentration could not be established. established
Samples were safe for human consumption because it did not exceed the standard set by Bureau of Fisheries and Aquatic Resources (BFAR) and World Health Organization (WHO)
Based on the foregoing findings and conclusions, the following are hereby recommended:
The
city government should provide a
chemical laboratory
Other
species of fishes aside from Pirit and
Bodboron may also be studied for lead metal y , analysis,
Other
toxic metals bioaccumulation like
arsenic, mercury and cadmiun are also recommended to be determined in Bodboron p and Pirit species.
Detection of Lead Content of Fishes Commonly Sold in General ...
immature or juvenile (20-30 cm) immature or juvenile (20 30 cm) ... Bureau of Fisheries and Aquatic Resources. (BFAR) and World Health Organization (WHO) ...
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