Identifying populations at risk from environmental contamination from point sources

Identifying populations at risk from environmental contamination from point sources.

OBJECTIVES To compare methods for defining the population at risk from a point source of air pollution. A major challenge for environmental epidemiology lies in correctly identifying populations at risk from exposure to environmental pollutants. The complexity of today's environment makes it essential that the methods chosen are accurate and sensitive. METHODS Environmental and mathematical m...

Chlorofluorocarbon sources of environmental contamination.

The quantities of chlorofluorocarbons (FCC's) used commercially in the United States and globally are reviewed, and estimates of environmental release from the applications are made. The results indicate that sizable quantities of the FCC's that have been produced have not yet reached the environment and that regulation of U.S. applications would partly reduce, but not end, the possible destruc...

Heavy metal contamination from geothermal sources.

Liquid-dominated hydrothermal reservoirs, which contain saline fluids at high temperatures and pressures, have a significant potential for contamination of the environment by heavy metals. The design of the power conversion cycle in a liquid-dominated geothermal plant is a key factor in determining the impact of the installation. Reinjection of the fluid into the reservoir minimizes heavy metal...

Identifying the sources of gains from takeovers

In the research literature on UK take-overs there seems to be an apparent conundrum. First, it appears that, in general, the market anticipates overall equity cash flow gains from a take-over in the sense that the share price of the acquiree firm typically increases relative to some appropriately market-adjusted benchmark over the period of time from the announcement of the take-over to the dat...

Identifying populations at risk: functional impairment and emotional distress.