| Abstract |
The objective of this study was to examine the abnormal chromosomes in climbing perch (Anabas testudineus) from reservoir near electronic waste (e-waste) open dumping area compared with reference area. The kidney cells from five A. testudineus were assessed for abnormal chromosomes. The Cd, Pb, Cr, Cu, Mn, Ni and Zn concentrations in water, sediment and A. testudineus samples were analyzed by inductively coupled plasma optical emission spectrometry. The heavy metal concentrations in water and sediment did not exceed the standard limit of Thailand. The Cd, Pb and Cr concentrations in A. testudineus from the e-waste area exceeded the food standard. The heavy metal concentrations in the A. testudineus samples from the e-waste and the reference areas were significantly different (p<0.05), except for Mn. The diploid chromosome numbers of A. testudineus in both studied areas were 2n=46. There were five types of abnormal chromosomes: centromere gap, deletion, fragmentation, single chromatid gap and single chromatid decomposition. The percentages of abnormal chromosomes in the A. testudineus cells from the e-waste and the reference areas were significantly different (p<0.05). The results indicated that Cd, Pb and Cr concentrations from the e-waste area could induce the occurrence of abnormal chromosomes in A. testudineus. |
Publication
Journal Publication
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