The Effect of the Temperature on Bioconcentration Characteristics of .ALPHA.-Hexachlorocyclohexane

Autor: Kumiko Ikeda, Masahiro Tateishi, Hisashi Yamada
Rok vydání: 1996
Předmět:
Zdroj: NIPPON SUISAN GAKKAISHI. 62:280-285
ISSN: 1349-998X
0021-5392
DOI: 10.2331/suisan.62.280
Popis: Experiments on bioconcentration and elimination of α-hexachlorocyclohexane (α-HCH) were carried out by using Sillago japonica, Rudarius ercodes, and Pagrus major at two different water temperatures of 20 and 25°C. Changes of bioconcentration factor (BCF), uptake rate constant (k1), and elimination rate constant (k2) caused by the different temperatures were studied.k2 at 25°C was larger than that at 20°C. BCF, which is expressed as k1/k2, did not change with temperature. These results suggested that k1 as well as k2 depended on temperature, and were larger at higher temperature. The present study indicated that both water temperatures of 20 and 25°C were suitable for the bioconcentration experiment using these fish species, and that the water temperature in the experiment, which determines k1 and k2, should be fixed exactly.
Databáze: OpenAIRE