PERSISTENT ORGANIC POLLUTANTS IN MUSCLE OF FARMED NILE TILAPIA (Oreochromis niloticus) AND FEED FROM BRAZIL - PART II: PCB AND PAH
Tilapia raised on fish farm can be exposed through alimentary intake to persistent organic contaminants, such as PCB and PAH, due to a diet based in fish feed containing several ingredients which can content contaminants. The concentrations and congeners pattern of the PCB and PAH were determined in fish muscle and feed samples collected from different fish farms in Brazil (2 Intensive and 2 Super Intensive rearing systems). Results indicated that the SPCB mean concentrations in fish muscle and fish feed samples ranged from 114.7 to 300.4 pg g-1 and from 69.3 to 2310.4 pg g-1 wet weight basis (ww.), respectively. PCB were analyzed into three categories as follows: Indicator PCB (90.1％ of total samples, majority found at SI systems), Non-ortho (were present in 0.5％ of total samples) and Mono-ortho (9.4％ of total samples). PAH was found in low levels, with Naphthalene and Phenanthrene the most found with 61％ and 22％ of total PAH concentrations. No correlations were found between PCB and PAH concentrations. Higher PCB concentrations in feed are corresponding to higher PCB concentrations in fish muscle, but not in case of PAH.
Polychlorinated Biphenyls Polycyclic Aromatic Hydrocarbons environmental pollution Tilapia feed aquaculture
Botaro D Schramm K-W Henkelmann B Malm O Furuya W M Torres J P M
Eduardo Penna Franca Radioisotopes Laboratory,CCS-UFRJ,IBCCF,Ilha do Fundao,CEP:21941-902,Rio de Jan Helmholtz Zentrum München,German Research Center for Environmental Health,Institute of Ecological Ch Helmholtz Zentrum München,German Research Center for Environmental Health,Institute of Ecological Ch Departamento de Zootecnia,UEM,Av. Colombo,5790,CEP: 87020-900,Maringá-PR.
国际会议
北京
英文
1-4
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）