Carcinogenic health risk of arsenic metal in Tilapia ( Oreochromis niloticus) from Sucat lakeshore area of Laguna de Bay, Philippines/ Joseph Ralph H. Lucena, Naomi Gail G. Martinez, and Mark Joshua S. Vibar.--

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Lucena, Joseph Ralph H [author ]

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TextPublication details: Manila: Technological University of the Philippines, 2024.Description: ix, 166pages: 29cm. +1 CD-ROM (4 3/4in.)Content type:

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BTH GF 41 L83 2024

Dissertation note: College of Science .-- Bachelor of Science in Environmental Science: Technological University of the Philippines, 2024. Summary: Regular monitoring of water quality and heavy metal concentrations in edible fish, along with updated baseline data in Laguna de Bay, has yet to be implemented. The study was conducted to determine the carcinogenic health risk of Arsenic (As) metal in Tilapia (Oreochromis niloticus) and monitor the water quality of Laguna de Bay water from the months of November and December 2023 and January, February, and March 2024. Water and Fish samples were collected in three selected sites in Northwest of Laguna de Bay and plotted in Geographical Information System Digital maps. One-kilogram fish samples from each site within 5 months were analyzed through Electrothermal Atomic Absorption Spectrometric Method. Water parameters like pH, Temperature, Total Dissolved Solids, Salinity, and Conductivity were also determined. Survey questionnaires were distributed to residents of Sucat, Muntinlupa City to determine the Fish consumption pattern of fish from the lake, anthropogenic activities, water quality and environmental awareness of the community. Based on the survey, most of the responses were eating commercially available fish in the lake, specifically Tilapia. All the water quality parameters measured were within the standard criteria for Class C waters. The highest lifetime cancer risk for Arsenic was from Site 3 of December having the risk value of 5.02x10-4, about 50 excess cancer cases per 100,000 populations. December Site 1 with a risk value of 2.22x10-4 or 22 excess cancer cases per 100,000 populations had the lowest. The mass of Tilapia consumption per day that increases skin and lung cancer risk is 9.07 Kg/day for wet season and 7.25 Kg/day for dry season. Only TDS and pH have a negligible positive correlation on concentrations of Arsenic in fish samples. This study concludes from the point of view of cancer prevention that long-term consumption of Tilapia from Laguna de Bay may cause high carcinogenic health risk. Key Words: Cancer, Carcinogenic Risk, Laguna de Bay, Arsenic, Consumption Pattern

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Item type	Current library	Shelving location	Call number	Copy number	Status	Notes	Date due	Barcode
Bachelor's Thesis COS	TUP Manila Library	Thesis Section-2nd floor	BTH GF 41 L83 2024 (Browse shelf(Opens below))	c.1.	Not for loan	For library use only		BTH0005239

Thesis (undergraduate)

College of Science .-- Bachelor of Science in Environmental Science: Technological University of the Philippines, 2024.

Includes bibliography.

Regular monitoring of water quality and heavy metal concentrations in edible fish, along
with updated baseline data in Laguna de Bay, has yet to be implemented. The study was
conducted to determine the carcinogenic health risk of Arsenic (As) metal in Tilapia
(Oreochromis niloticus) and monitor the water quality of Laguna de Bay water from the
months of November and December 2023 and January, February, and March 2024. Water
and Fish samples were collected in three selected sites in Northwest of Laguna de Bay and
plotted in Geographical Information System Digital maps. One-kilogram fish samples from
each site within 5 months were analyzed through Electrothermal Atomic Absorption
Spectrometric Method. Water parameters like pH, Temperature, Total Dissolved Solids,
Salinity, and Conductivity were also determined. Survey questionnaires were distributed
to residents of Sucat, Muntinlupa City to determine the Fish consumption pattern of fish
from the lake, anthropogenic activities, water quality and environmental awareness of the
community. Based on the survey, most of the responses were eating commercially
available fish in the lake, specifically Tilapia. All the water quality parameters measured
were within the standard criteria for Class C waters. The highest lifetime cancer risk for
Arsenic was from Site 3 of December having the risk value of 5.02x10-4, about 50 excess
cancer cases per 100,000 populations. December Site 1 with a risk value of 2.22x10-4 or 22
excess cancer cases per 100,000 populations had the lowest. The mass of Tilapia
consumption per day that increases skin and lung cancer risk is 9.07 Kg/day for wet season
and 7.25 Kg/day for dry season. Only TDS and pH have a negligible positive correlation
on concentrations of Arsenic in fish samples. This study concludes from the point of view
of cancer prevention that long-term consumption of Tilapia from Laguna de Bay may cause
high carcinogenic health risk.

Key Words: Cancer, Carcinogenic Risk, Laguna de Bay, Arsenic, Consumption Pattern

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