Background: Chemical contaminants present in the work environments include gases, vapors, and solid and liquid suspended particles. The number of factories producing chemicals has increased significantly. Each year, new products are introduced into the market. Consequently, the number of employees at risk of exposure to these materials is increased. Hazardous chemicals are used in the petrochem...

An increased international effort to reduce the incidence of malaria around the globe while reducing reliance on DDT was announced 6 May 2009 at the fourth meeting of the Conference to the Parties to the Stockholm Convention on Persistent Organic Pollutants (POPs). With funding of more than US$70 million, the United Nations Environment Programme and the World Health Organization have launched 1...

The impacts of four simulated hazardous events, namely, aeration failure, power loss, and chemical shocks (ammonia or bleach) on the performance of an anoxic-aerobic membrane bioreactor (MBR) receiving real wastewater were investigated. Hazardous events could alter pH and/or oxidation reduction potential of the mixed liquor and inhibit biomass growth, thus affecting the removal of bulk organics...

Overview Learning Objectives 9.1 Hazardous Waste: Identification and Classification 9.1.1 Identification 9.1.2 Classification 9.2 Hazardous Waste Management 9.2.1 Generation 9.2.2 Storage and collection 9.2.3 Transfer and transport 9.2.4 Processing 9.2.5 Disposal 9.3 Hazardous Waste Treatment 9.3.1 Physical and chemical treatment 9.3.2 Thermal treatment 9.3.3 Biological treatment 9.4 Pollution ...

Need for an online hazardous waste tracking system Suneel Pandey Hazardous waste management is one of the most challenging aspects of any environmental management system for any industry. There are more than 50 000 chemical substances, with one million combinations, used in industrial activities. Hazardous wastes – in the form of solids, liquids gases or sludge – are generated by a wide range o...

Ultimately, hundreds of billions of dollars of public and private funds will be spent in the US in hazardous chemical site (Superfund and closed RCRA facilities) investigation and remediation. A critical review of the adequacy of remediation of many of these sites that are “closed” in accord with RCRA and/or CERCLA requirements as being interpreted by regulatory agency staff/boards and principl...

The objectives of this study were to identify the perceptions of nursing workers regarding the handling of hazardous chemical waste at the University of São Paulo University Hospital (HU-USP), and develop a proposal to improve safety measures. This study used a qualitative approach and a convenience sample consisting of eighteen nursing workers. Data collection was performed through focal group...

The University of Georgia recognizes that laboratory waste may have adverse effects on the environment. A university-wide program has been directed at reducing the improper storage and disposal of toxic chemical wastes. The program extensively utilizes the Code of Federal Regulations 49, Transportation Parts 100 and 199. This code serves as a guide for the packaging and disposal, in an approved...