[Study of two heavy metals in river fish in Mali]

This study aims to contribute to improving the health quality of fish products in Mali. Conducted in 2O12, this was a qualitative and quantitative cross-sectional questionnaire study with 80 fresh fish processed into smoked fish. The main results were: traditional mud oven was used in 58.75% of cases; wood was used as fuel by 67.75% of transformers and cow dung by others; smoked fish was kept in recovery cartons and mats woven locally made in 66.25% of cases; waste removal was done daily in only 33.75% of cases. For fresh fish, 53.75% of the samples contain mercury with an average value of 0.047 mg/kg MB and a maximum of 0.270 mg/kg for a European standard of 0.500 mg/kg MB and 71.25% MB contained lead at an average value of 0.020 mg/kg MB and a maximum of 8.570 mg/kg MB for a European standard of 0.300 mg/kg MB. For smoked fish all samples contained mercury with minimum value of 0.010 mg/kg MB, an average of 0.200 mg/kg and maximum MB 1.260 mg/kg MB and 95% contained lead with a minimum value of 0.020 mg/kg MB, an average of 0.270 mg/kg MB and a maximum of 3,460 mg/kg MB. As the average value of lead for Smoked Fish Wood was 0.285 mg/kg MB against 0.248 mg/kg for one MB Smoked cow dung with a Kruskal-Wallis significant statistical test.