Hyperlink 7. Field Study on Short-Scale Heterogeneity

Figure H7-1. Part of a variability study of short-scale heterogeneity for arsenic concentrations (mg/kg) in a residential yard.

Figure H7-1. Part of a variability study of short-scale heterogeneity for arsenic concentrations (mg/kg) in a residential yard.
Source
: Unpublished data contributed by Deana Crumbling, USEPA.

The results of a field study presented in Figure H7-1 provide an example of short-scale heterogeneity for arsenic concentrations in a residential yard. To ascertain the degree of short-scale heterogeneity, linear groups of samples were taken, with samples located 1–2 feet apart. Within-sample heterogeneity was controlled so that the data results were true measures of short-scale heterogeneity. Figure H7-1 shows some of the data from that study. Sample locations are 1 foot apart.