Cadmium and lead contents in Tilapia mossambica and Chanos chanos sold in Bacoor and Alabang public markets

• Main Author: Bulaclac, James Alejon
• Format: text
• Language: English
• Published: Animo Repository 1997
• Subjects: Fishes > Effect of heavy metals on; Lead > Toxicology; Cadmium; Tilapia; Milk-fish (Bangus)
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/1593
• Institution: De La Salle University

Tilapia (Tilapia mossambica) and bangus (Chanos chanos) collected from Bacoor Public Market and Alabang Public Market were analyzed for cadmium and lead by atomic absorption spectrophotometry. Muscle tissue concentrations of heavy metals were relatively the same in tilapia and bangus. Concentrations of cadmium in tilapia bought from Bacoor Public Market and Alabang Public Market had mean values ranging from 0.0270 to 0.0597 mg/L during December, January, and March collection periods. Cadmium concentrations in bangus bought from Bacoor and Alabang Public Market had mean values ranging from 0.0393 to 0.0533 mg/L. Concentrations of lead in tilapia collected from the two wet markets range from 0.180 to 0.620 mg/L. Lead concentrations in tilapia bought from Bacoor Public Market during the months of January and March were 0.543 and 0.537 mg/L, respectively. The values were much higher than the limit set by the World Health Organization. Lead concentrations in bangus range from 0.273 to 0.483 mg/L. Lead and cadmium concentrations in the two fish species bought from the two wet markets are not significantly different from each other. Except for the concentrations of lead in tilapia bought from Bacoor Public Market during the months of December and January and the concentrations of lead in tilapia from Alabang Public Market during the months of January and March, values are within the permissible levels set by the World Health Organization for human consumption which is 0.5 mg/L.