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Setting priorities for environmental management: an by Wendy S. Ayres, Kathleen A. Anderson, David Hanrahan

By Wendy S. Ayres, Kathleen A. Anderson, David Hanrahan

Mining and commercial actions, if poorly controlled, can harm the surroundings and depart in the back of infected soils, polluted groundwater, and waste materials. the 2 papers during this quantity illustrate the methodologies constructed for choosing precedence websites for remediating environmental difficulties as a result of mining. It additionally describes the excessive precedence investments that may give you the maximum advantages for the to be had assets. The methodologies have extensive program and will be used to spot precedence remediation investments in different sectors the place previous actions have ended in environmental difficulties.

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Extra info for Setting priorities for environmental management: an application to the mining sector in Bolivia, Volumes 23-398

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Typically there will be a number of relatively low cost actions which have a significant effect on the release of pollutants and these should be selected as the first actions to be undertaken. An example might be diverting acid drainage away from sensitive areas. To the extent possible, the analyst should rank all possible actions at a site for which marginal benefits (that is, the additional benefits after all the previous actions have been implemented) exceed marginal costs. The highest ranking projects are those with the largest net present value.

Still, it should be possible to roughly identify those actions and investments which will provide the greatest environmental improvements for the investment required. Details on how to compute benefits of environmental improvements are presented in chapter 3. 4a Establishing Priorities across Sites Comparing actions across sites is even more difficult than setting priorities within a site. It requires a common measure of benefit, which in ideal conditions would be the net present value of the action.

Critical pollutants. The human health impacts due to exposure to various pollutants range from minor discomfort to reduced life-expectancy. The pollutants likely to be causing the greatest health damage in Bolivian mining communities are microbiological contaminants of drinking water, lead in soil, water, air, and food, suspended particulate matter in air, and cadmium, arsenic, and possibly mercury in food, soil, and water. Table 1 summarizes the impacts and chief exposure routes of the critical pollutants.

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