Solid waste policy in the United States produce large amounts of waste in small areas. For example, EPA reports that a single dairy cow produces approximately 120 pounds of wet manure per day equaling to that of 20-40 people. The main problems of animal waste mismanagement are environmental, especially water pollution. Industrial waste consists of a significant amount of solid waste. EPA reported that each year United States industrial facilities generate and dispose of approximately 7.6 billion tons of industrial solid waste based on 1980s figures. This figure includes waste generated from 17 industrial manufacturers of organic chemicals, inorganic chemicals, iron and steel, plastics and resins, stone,
Natural resource and waste management in Tanzania material generated by municipal, industrial, or agricultural practices. Over the past 30 years, urban areas such as Dar es Salaam have grown both in terms of population and physical size. However, there have been minimal efforts made to establish sustainable waste management procedures to accompany the long term increase. By default, metropolitan areas produce a significant portion of the total solid waste of the country due to the large concentration of industry in such regions. In Dar es Salaam, the largest city in Tanzania, residents generate approximately 0.31 kg of waste per capita. In comparison, residents of squatter areas –