Why were samples of blood, hair or other human tissues not collected and analyzed for the risk assessment?
The human health risk assessment did not indicate the need for collection and analysis of metals in human tissue. In most cases it is difficult to interpret the results of these types of measurements in a meaningful way. Lead and arsenic are exceptions. IF anyone is concerned about exposure to lead, monitoring can be arranged by their general physician for blood analysis. In addition, an Arsenic exposure study was conducted in the Town of Falconbridge. Although soil arsenic levels were higher in this community than in a nearby reference community, no additional arsenic was present in people living in the Town of Falconbridge compared to the reference community. The results of that study can be found in Appendix N of Volume II of the Sudbury Soils Study (Human Health Risk Assessment).
