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最低可见不良作用剂量水平
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最低可见不良作用剂量水平
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lowest-observed-adverse-effect level
最低可见不良作用剂量水平
在一定时间内、规定的暴露条件下,使用最灵敏的试验方法和观察指标,通过实验或观察发现的,与同一正常种属(对照)相比,一种物质引起目标生物在形态、功能、生长、发育或寿命方面出现明显不同于同一种属正常(对照)生物任何改变的最小浓度或量。又称观察到不良作用的最低剂量。通常以每千克体重的物质质量表示。
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