Sedman R M, Mahmood R J
Oregon Department of Environmental Quality, Portland.
Air Waste. 1994 Feb;44(2):141-4. doi: 10.1080/1073161x.1994.10467242.
Estimates of human exposure to soil are often needed to investigate potential risks to public health from toxicants released into the environment. Using the results of two recent tracer studies, estimates of average daily soil ingestion in young children and over a lifetime were ascertained. After establishing the distribution of the recoveries of the tracers in adults, the most reliable tracers were identified using an analysis of variance and Tukey's multiple comparison procedure. The identified reliable tracers were then employed to derive estimates of mean daily soil ingestion in young children. Ingestion rates were first adjusted to address the age differences of the children enrolled in the studies. A mean daily intake and variance were then determined. Estimates of soil ingestion over a lifetime were established based on levels determined in children.
通常需要估算人类对土壤的接触情况，以调查释放到环境中的有毒物质对公众健康的潜在风险。利用两项近期示踪剂研究的结果，确定了幼儿期以及一生当中的平均每日土壤摄入量估算值。在确定示踪剂在成年人中的回收率分布后，使用方差分析和图基多重比较程序确定了最可靠的示踪剂。然后使用确定的可靠示踪剂来推导幼儿平均每日土壤摄入量的估算值。首先对摄入量进行调整，以解决参与研究的儿童的年龄差异问题。然后确定平均每日摄入量和方差。基于儿童确定的水平，建立了一生当中土壤摄入量的估算值。
