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Biomedical subjects

L Trip

Publications and source records attributed to L Trip.

6 recordsLinked to original sources
PubMed2001

Canada-wide standards: a pollution prevention program for dental amalgam waste.

Dentistry and society have long recognized the benefits of using silver-based amalgams to restore and maintain the dental health of patients. However, recent studies by health and environment experts have shown that mercury is of great concern when it enters the biosphere as a contaminant. A rational approach to pollution prevention is mandatory. This article explains the relationship between mercury, particularly dental amalgam waste, and the environment and describes a new pollution prevention initiative intended to ensure that the dental community becomes part of the solution to this serious environmental health problem.

Animals↗
PubMed2000

Developing consensus: mercury science and policy in the NAFTA countries (Canada, the United States and Mexico).

The international science community has recognized methylmercury in the aquatic food chain, as a potential environmental and human health risk. As a result, countries around the world have implemented a number of mercury management initiatives. The United States, Mexico and Canada in consultation with stakeholders are developing a trilateral North American Regional Action Plan (NARAP) on mercury. Through public involvement in the decision making process, the NARAP has offered opportunities for more transparency in transactions between governments, industry and stakeholders. In spite of the available scientific information, there are still important uncertainties associated with the mercury issue. These knowledge gaps include: the most appropriate methylmercury reference dose for sensitive groups; the percentage of the North American population that is at risk from methylmercury exposure; spatial and temporal mercury deposition patterns in each country; the link between mercury emissions, atmospheric deposition and methylmercury concentrations in fish; and the relative magnitude of contributions from natural and anthropogenic sources.

Animals↗
PubMed2000

The Northeast States and Eastern Canadian Provinces mercury study: a framework for action: summary of the Canadian chapter.

The objective of this paper is to give an overview of the findings of the Canadian chapter of the Northeast States and Eastern Canadian Provinces Mercury Study, which was conducted between 1995 and 1998. The Canadian chapter provided information on mercury emissions, sources and levels in air, water, biota and humans. Industry, governments and universities provided information for the Canadian chapter. The study showed that the Northeast States and Eastern Canadian Provinces (NES/ECP) is a region impacted by airborne mercury. Annual mercury emissions for the NES/ECP region are estimated to be approximately 19 t (12%) of the combined Canadian and US national anthropogenic mercury emissions of 155 t/year. 210Pb-dated lake sediment cores from Atlantic Canada showed a mercury enrichment factor of 2.5 for coastal sites with mercury increases starting in 1860. Regional mercury wet deposition for the NES/ECP region was 7-11 microg/m2/year. Provincial and federal fish health advisories have been updated in the ECP for children and women of child-bearing age limiting the consumption of freshwater fish, as well as fresh or frozen shark, tuna or swordfish.

Adult↗
PubMedDate not supplied

The need for integrated linkages and long-term monitoring of mercury in Canada.

A nation-wide ecosystem science network for Canada was formed in 1994. At that time, mercury was a re-emerging issue in Canada and the Coordinating Office for the network sought collaboration to assess the issue. The key mechanisms by which the network has added value in addressing this issue are: 1) Information Dissemination, the network has organised, facilitated and co-hosted a number of regional. national and international mercury events (meetings, conferences and workshops) which have served to bring the expertise together, the network also disseminates information on it's web page. and the Coordinating Office hosts an annual National Science Conference: 2) Collaborative Mercury Monitoring, network partners advocated the need for a single hemispheric mercury network which resulted in the development of a compatible Canada-U.S. mercury deposition network, which may also be expanded into Mexico, and 3) Environmental Reporting, the network has collaborated with others to report on current mercury findings through initiatives such as the 1998 Northeast States and Eastern Canadian Mercury Study, a 1999 Mercury Case Study and is presently a partner in the University of Quebec's proposal to form a Collaborative Mercury Ecosystem Research Network in Canada.

Canada↗