Perfluorinated compounds ~PFCs!, gases which have large global warming potentials, are widely used in plasma processing for etching and chamber cleaning. Due to underutilization of the feedstock gases or by-product generation, the effluents from plasma tools using these gases typically have large mole fractions of PFCs. The use of plasma burn-boxes located downstream of the plasma chamber has b...

The impacts of long-lived stock pollutants and the abatement and technology measures supposed to address them link current and future generations together. Altruism towards successor generations is a prerequisite for resolving the resulting intergenerational equity issues. Preference asymmetry and typical imperfections of altruism, however, introduce the possibility of important strategic confi...

OBJECTIVE To evaluate the effect of soil abatement on children's blood lead concentrations and on environmental levels of lead and arsenic. METHODS Two cross-sectional surveys were conducted. The first (1989) was of a random sample of 6- to 72-month-old children (n=112). The second (1998) included all 6- to 72-month-old children whose parents agreed to participate in the survey (n=215). From ...

Integrated Assessment Modelling in the field of air pollution has advanced greatly since the 1985 Helsinki Protocol on the reduction of Sulphur emissions and their transboundary fluxes. With subsequent protocols and increased understanding of the inter-relationships between local air quality, transboundary air pollution and climate change, a variety of spatio-temporal issues must be addressed i...

Nonpoint-source pollution remains a troubling source of water quality problems despite decades of economics research on the matter. Among the chief difficulties for addressing the issue are the property rights assignments implicit in the current policy environment that favor agricultural nonpoint-source pollution, the unobservability of field-level emissions, and complex fate and transport rela...