Program of Research and Investigation to Assist in the Determination of Future Requirements for Sanitary District Sewage Works: pt. 1. Present practice in the appointment, allocation and distribution of sewage works cost in the Minneapolis-St. Paul Metropolitan area. pt. 2. Present practice in the apportionment, allocation and distribution of sewage works costs in metropolitan areas in the United States. pt. 3. Analysis of the effect of various methods of cost apportionment and allocation on the division of costs of sewage works expansion in the Minneapolis-St. Paul metropolitan area


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Air Emissions from Animal Feeding Operations


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Air Emissions from Animal Feeding Operations: Current Knowledge, Future Needs discusses the need for the U.S. Environmental Protection Agency to implement a new method for estimating the amount of ammonia, nitrous oxide, methane, and other pollutants emitted from livestock and poultry farms, and for determining how these emissions are dispersed in the atmosphere. The committee calls for the EPA and the U.S. Department of Agriculture to establish a joint council to coordinate and oversee short - and long-term research to estimate emissions from animal feeding operations accurately and to develop mitigation strategies. Their recommendation was for the joint council to focus its efforts first on those pollutants that pose the greatest risk to the environment and public health.




Water Policies for the Future


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Outdoor Recreation for America


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Principles and Recommendations for Population and Housing Censuses


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The population and housing census is part of an integrated national statistical system, which may include other censuses (for example, agriculture), surveys, registers and administrative files. It provides, at regular intervals, the benchmark for population count at national and local levels. For small geographical areas or sub-populations, it may represent the only source of information for certain social, demographic and economic characteristics. For many countries the census also provides a solid framework to develop sampling frames. This publication represents one of the pillars for data collection on the number and characteristics of the population of a country.