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121.
This article investigates the policy formulation process related to seismic hazard mitigation. A preemergent policy climate is identified by focusing on key actors, assessments of seismic risk, and policy alternatives. Two major factors were found to affect key actor support for policy development: (a) the objective risk to which their constituent community is exposed, and (b) their elective or appointive position at the local level of government. 相似文献
122.
Bacteriophages MS-2 and PRD-1 were used as indicators of human viral behaviour in a series of turf-grass irrigation and washing
machine experiments to provide information about the level of human exposure to potential residual enteric viruses in recycled
water that can affect health. Results provided evidence to support a potential inadvertent exposure volume of 0.01 ml for
recycled water used for machine clothes washing. Results for irrigation experiments showed that a one log reduction in bacteriophage
numbers on turf-grass was not achieved under exposure to high solar conditions after 4 h. Experimentation showed that bacteriophages
may be usefully employed in exposure assessment studies based on the ease of their enumeration and logistical and cost considerations.
In terms of future studies, observed differences in individual bacteriophage characteristics provide a rationale for using
multiple viral indicators. However, limitations on the utility of bacteriophage also need to be considered. 相似文献