PMID- 11911528
OWN - NLM
STAT- MEDLINE
DCOM- 20021018
LR  - 20190901
IS  - 0269-7491 (Print)
IS  - 0269-7491 (Linking)
VI  - 117
IP  - 3
DP  - 2002
TI  - Persistent chlorinated pesticides and polychlorinated biphenyls in selected fish 
      species from Lake Tanganyika, Burundi, Africa.
PG  - 447-55
AB  - Concentrations of selected organochlorine pesticides and PCBs in seven fish 
      species (cichlids) from the north end of the Lake Tanganyika, Burundi, Africa 
      were determined. Results were compared to previous work on the Lake Tanganyika 
      and other water bodies and to the European Community maximum residue levels 
      (MRLs) in edible fat. The analytical method included a hot Soxhlet extraction 
      with a mixture of acetone: hexane (1:3, v/v), gravimetrically lipid 
      determination, and a single step clean-up. For PCBs and stable pesticides, the 
      clean-up was done on activated silica gel impregnated with concentrated sulfuric 
      acid, while for non acid-stable pesticides superposed layers of alumina, silica 
      and florisil impregnated with 15% methanolic solution of KOH were successively 
      used. Recoveries of organochlorine pesticides from certified reference material 
      (CRM 430) were ranging from 86% for p,p'-DDT to 107% for endrin, while recoveries 
      from blank fat spiked fortified at three different levels were between 65% for 
      alachlor at the lowest fortification level and 107% for mirex at the highest 
      fortification level. The limits of detection for each analyte were ranging from 
      0.1 ng/g to 0.5 ng/g fat. All chlorinated pesticides were found in the analyzed 
      species but at low concentrations. Boulengerochromis microlepis contained the 
      highest concentrations of HCHs (288.2 +/- 15.5 ng/g fat) and DDTs (909.1 +/- 42.5 
      ng/g fat), while the highest PCB levels (166.7 +/- 37.4 ng/g fat for the sum of 
      12 congeners) were found in Oreochromis niloticus. However, there is no evidence 
      that Lake Tanganyika is more contaminated with pesticides than other African 
      water bodies.
FAU - Manirakiza, P
AU  - Manirakiza P
AD  - Toxicological Center, University of Antwerp, Wilrijk, Belgium. 
      manirak@uia.ua.ac.be
FAU - Covaci, A
AU  - Covaci A
FAU - Nizigiymana, L
AU  - Nizigiymana L
FAU - Ntakimazi, G
AU  - Ntakimazi G
FAU - Schepens, P
AU  - Schepens P
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Fats)
RN  - 0 (Hydrocarbons, Chlorinated)
RN  - 0 (Pesticides)
RN  - 0 (Water Pollutants, Chemical)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Animals
MH  - Burundi
MH  - Chemistry Techniques, Analytical/methods
MH  - Chromatography, Gas
MH  - Environmental Monitoring/methods
MH  - Fats/metabolism
MH  - Fishes/*metabolism
MH  - Hydrocarbons, Chlorinated/chemistry/*metabolism
MH  - Pesticides/chemistry/*metabolism
MH  - Polychlorinated Biphenyls/chemistry/*metabolism
MH  - Water Pollutants, Chemical/metabolism
MH  - Water Pollution, Chemical/analysis
EDAT- 2002/03/26 10:00
MHDA- 2002/10/19 04:00
CRDT- 2002/03/26 10:00
PHST- 2002/03/26 10:00 [pubmed]
PHST- 2002/10/19 04:00 [medline]
PHST- 2002/03/26 10:00 [entrez]
AID - S0269-7491(01)00188-9 [pii]
AID - 10.1016/s0269-7491(01)00188-9 [doi]
PST - ppublish
SO  - Environ Pollut. 2002;117(3):447-55. doi: 10.1016/s0269-7491(01)00188-9.