All the pilchard brandsrecorded lead concentration below detection (<0.01). These resultsare lower than what was recorded by Emami Khansari et al. (2005)and Ikem and Egiebor (2005). Several researches have been carriedout to determine lead levels in canned fish (Cesar, Wendell,Makoto, & Nilson, 2002; Mustafa & Mustafa, 2006). The concentrationof lead determined in canned sardines (Sardinella brasiliensis)from Brazil (Cesar et al., 2002) ranged from 0.77 to 2.15 lg g1wet weight. The results are by far greater than what was obtainedin this study (<0.01–1.44). Mustafa, Ozgur, Durali, and Mustafa(2006) recorded lead concentration in the range of 0.09–0.4 lg g1for canned fish marketed in Turkey. Some concentrations of leadobtained in this study are higher than what was reported byMustafa et al. (2006). Levels of lead in canned sardine and cannedmackerel in Turkey ranged from 0.005 to 0.08 and 0.015 to0.02 lg g1 respectively (Manthey-Karl et al., 2014).Metal pollution of the sea is less visible and direct than othertypes of marine pollution but its effects on marine ecosystemsand humans are intense and very extensive. The toxic effects oflead have been broadly studied (Narvaes, 2002). The concentrationsof lead obtained in this study are less than 2.0 lg g1 wetweight threshold limit set by the World Health Organisation(WHO, 1996). The low concentrations of lead in the canned fishesanalyzed suggest that the exposure of the general public to leadthrough the consumption of canned fish is not significant.
การแปล กรุณารอสักครู่..
