As Hong Kong is a compact city with limited available land and high land prices, the construction of high-rise buildings is prevalent. The construction industry produces a significant amount of building waste. In 2005, about 21.5 million tonnes of construction waste were generated, of which 11% was disposed of in landfills and 89% in public filling areas. At the present rate, Hong Kong will run...

Measuring progress on a national basis for the reduction in hazardous waste generated has been carefully examined. A successful measurement must follow the decision-making basis by which industry adopt such changes in order to adequately reflect the pace of waste reduction. Mass-based approaches are useful in some evaluations of priorities, but are inadequate and produce major anomalies in repo...

Environmental problems have been considered as a serious situation in Hong Kong, in which waste management is pressing harder in comparing with the practices of air, water and noise pollution. Reuse, recycling and reduce the construction materials has been encouraged for many years; however, it is still not used for many construction site activities. In motivating the construction workers to im...

background : due to the crucial role of dental solid waste in the spreading of pathogens and threats to human health and the environment, its optimal management is very important. methods: this was a descriptive cross-sectional study. the study population consisted of 40 dental centers, from among which 11 dental centers were selected through random sampling. from each center, 3 samples were co...

context:  medical waste(mw) is all waste materials generated at health care facilities. mw mw naturally is hazardous for environment and subsequently for human.waste minimization (wm) is the latest alternative for risk reduction. all hospital staff generally and nurses specially can play an active role through education and the implementation of measures to reduce medical wastage and their envi...

End-of-pipe pollution controls are being replaced by pollution prevention and source reduction approaches in an increasing number of industries in many SIC'S in the U.S. and around the world. But the dissemination of information to industrial leaders and governmental regulators about the economic and environmental and human health benefits to be derived from industrial utilization of pollution ...

This report presents case studies which document site visits conducted to characterize paint related waste activities of Illinois paint manufacturers, users, and waste processing facilities. Case studies are presented for eight paint users, four paint manufacturers, and one paint related waste processing facility within Illinois. In addition, two case studies document visits to waste processing...

Pharmaceutical and specialty chemical production often causes high waste to product ratios. This can be explained by complex reaction mechanisms that require complicated multi-step production routes as well as stringent product purity and quality requirements. Therefore a large number of different types and levels of waste are leaving pharmaceutical production campaigns and need material recove...