Lucena, Joseph Ralph H. <br/><br/>
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.-- 
 - Manila:  Technological University of the Philippines,   2024. 
 - ix, 166pages:  29cm.   +1 CD-ROM  (4 3/4in.)  
<br/><br/> Thesis (undergraduate) 
<br/><br/>College of Science .-- 
<br/><br/>Includes bibliography.  
<br/><br/> Regular monitoring of water quality and heavy metal concentrations in edible fish, along<br/>with updated baseline data in Laguna de Bay, has yet to be implemented. The study was<br/>conducted to determine the carcinogenic health risk of Arsenic (As) metal in Tilapia<br/>(Oreochromis niloticus) and monitor the water quality of Laguna de Bay water from the<br/>months of November and December 2023 and January, February, and March 2024. Water<br/>and Fish samples were collected in three selected sites in Northwest of Laguna de Bay and<br/>plotted in Geographical Information System Digital maps. One-kilogram fish samples from<br/>each site within 5 months were analyzed through Electrothermal Atomic Absorption<br/>Spectrometric Method. Water parameters like pH, Temperature, Total Dissolved Solids,<br/>Salinity, and Conductivity were also determined. Survey questionnaires were distributed<br/>to residents of Sucat, Muntinlupa City to determine the Fish consumption pattern of fish<br/>from the lake, anthropogenic activities, water quality and environmental awareness of the<br/>community. Based on the survey, most of the responses were eating commercially<br/>available fish in the lake, specifically Tilapia. All the water quality parameters measured<br/>were within the standard criteria for Class C waters. The highest lifetime cancer risk for<br/>Arsenic was from Site 3 of December having the risk value of 5.02x10-4, about 50 excess<br/>cancer cases per 100,000 populations. December Site 1 with a risk value of 2.22x10-4 or 22<br/>excess cancer cases per 100,000 populations had the lowest. The mass of Tilapia<br/>consumption per day that increases skin and lung cancer risk is 9.07 Kg/day for wet season<br/>and 7.25 Kg/day for dry season. Only TDS and pH have a negligible positive correlation<br/>on concentrations of Arsenic in fish samples. This study concludes from the point of view<br/>of cancer prevention that long-term consumption of Tilapia from Laguna de Bay may cause<br/>high carcinogenic health risk.<br/><br/>Key Words: Cancer, Carcinogenic Risk, Laguna de Bay, Arsenic, Consumption Pattern 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health risks <br/>Hazardous materials 
<br/><br/><label>LC Class. No.: </label>BTH GF 41   / L83 2024