CONSTRUCTION EXPOSURE SCENARIOS Sample Clauses

CONSTRUCTION EXPOSURE SCENARIOS. Two population groups are of potential interest during the construction phase of the project; the construction workers and the off-site residents. Construction related exposures will necessarily be variable and short-term in nature since site activities having the potential for altering the release of contaminants will change throughout the construction period and ultimately end upon completion of the project. Acute (very short exposures to much higher than typical concentrations of chemicals) exposure hazards are most commonly associated with entry into enclosed or confined spaces in which compounds have accumulated. Construction workers are likely to be the only group of concern relative to health impacts from acute exposure. Such potential health impacts are prevented principally by the implementation of appropriate occupational health and safety procedures governing any activities involving confined spaces. Such procedures typically require; the testing of air in confined spaces to ensure it is below combustible limits and contains sufficient oxygen, the provision of adequate ventilation, the elimination of sources of ignition, and working in groups or teams. This assessment does not address acute exposures to workers on-site during construction activities, since it is assumed that appropriate work practices will be employed to eliminate the potential for acute exposures in compliance with OSHA requirements.