基于国际标准和生物分布的广泛性选择大型蚤(Daphnia magna straus)和日本青鳉(Japanese Medaka)作为印染废水毒性测试的测试生物。 大型蚤急性毒性试验周期为48h,试验结束时统计大型蚤死亡率并得出半致死浓度(LC50)。
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Japanese researchers will now study how the bone density of the Medaka fish has changed over time, helping them understand similar changes that occur in human astronauts.
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