The assessment of risk to human health aims to establish whether people will stay within or near a contaminated area (residents or workers), for example are likely to develop health problems because of possible contact with this contamination.
(A) - As the Conceptual site model2 this contact can occur by ingestion of contaminated water , contaminated soil, contaminated food, inhalation of vapors and particles or even dermal contact with contaminated soil or water. Identified risk situations, responsible for the area shall measures intervention guaranteeing the elimination of risk, for the use of the area is safe.
(B) - The transportation modeling to determine the concentrations at points of exposure, entry rates, risk quantification and remediation goals concentrations are calculated using mathematical models scientifically developed and widely accepted by environmental agencies as reliable assessment tools and decision making.
(C) - Important references in these methodologies are international standards of ASTM (E 1739-95 Standard Guide for Risk-Based Corrective Action Applied at Petroleum Release Sites and E 2081-00 Standard Guide for Risk-Based Corrective Action) and manual Management of Contaminated Sites Cetesb. Commercial software can be used for calculations and, most employees are RBCA Tool Kit and RISC WorkBench.