dental offices produce a variety of dangerous wastes during normal business day. most of these waste are non-hazardous that can be managed as household wastes; however, some component are hazardous and can pose a risk to human and the environment if discarded to municipal solid wastes. these types of wastes must be managed separately. therefore, the aim of this study was to assess the component...

a risk assessment study was conducted to predict the expected hazardous influence on the ecosystem resulted from urbanization and industrialization activities at helwan area, egypt. to achieve these goals, soils, plants and water samples were collected from helwan area, and their total concentrations of inorganic contaminants (cd, cr, co, cu, fe, mn, ni, pb, and zn) and organic pollutants; such...

This paper explores the issue of whether strict liability imposed on polluters has served to reduce uncontrolled releases of toxics into the environment. Strict liability should create additional incentives for firms to handle hazardous substances more carefully, thus reducing the future likelihood of uncontrolled releases of toxics. However, the size of these incentives may vary according to t...

In 1989, 30 states levied taxes on the generation or management of hazardous waste. These taxes constitute one of the broadest applications of an emissions tax in U.S. environmental policy and provide a natural experiment for studying the effects of such taxes. This paper examines the impacts on chlorinated solvent waste from metal cleaning, using plant-level data from EPA's 1987-89 Toxic Relea...

Trimethyl tin chloride (TMTC) is a highly toxic organotin compound that affects four main target organs: the brain, liver, immune system and skin. Exposure can occur by inhalation, ingestion or direct skin absorption. Trimethyl tin is but one of many hazardous substances with potentially serious health consequences to which individuals working in research laboratories may be exposed. We report ...

With the passage of the Resource Conservation and Recovery Act RCRA and the subsequent amendments to RCRA e orts to provide tighter controls on the transportation and disposal of hazardous waste have been steadily gaining ground This paper intended as a decision support tool for regional planning incorporates information on the hazardous waste generation treatment capacity and the costs of wast...

Background & Aims of the Study : Household hazardous waste is an important part of municipal solid waste in any community and if it is not managed properly, it can significantly damage the health of family, community and environment. The present study aimed at evaluating the knowledge, attitude and practices of households regarding the management of household hazardous wastes in Amirkola, Mazan...