Physical Sciences and Mathematics Commons^™

Emisja Związków Fluoru Z Hutnictwa Żelaza, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

The article presents the results of the last few years of comprehensive researches related to the emission of fluorine compounds from iron metallurgy in Poland. Determined of the levels of flue-gas concentrations and air emissions for fluorine in the form of gaseous and solid compounds, including water-soluble compounds (considered to be toxic). The study also made it possible to analyze of raw materials used in these processes taking into account fluorine content and its impact on the amount of fluorine compounds emitted to the air.

English title: Emissions of fluorine compounds with iron metallurgy.

Derivation Of Wildlife Values For Mercury, Steven P. Bradbury, John Nichols, Jeff Swartout

Steven P. Bradbury

A procedure has been developed to estimate surface water concentrations of toxicants (“wildlife values”) that will protect the viability of wildlife populations associated with aquatic resources. This procedure was designed primarily to protect piscivorous birds and mammals from compounds that bioaccumulate in fish and was used in the Great Lakes Water Quality Initiative (GLI) to calculate wildlife values (WV) for mercury, DDT/DDE, total polychlorinated biphenyls (PCBs), and 2,3,7,8-tetrachlorodibenzodioxin (TCDD). Published in 1995, and expressed as total mercury in unfiltered water, the final wildlife value (WVf) for mercury derived in the GLI was 1300 pg Hg/L. This value was selected as …

A Synthesis Of Lead Isotopes In Two Millennia Of European Air, Charles Dunlap, Eiliv Steinnes, A. Russell Flegal

Charles Dunlap

Four airborne particulate records from ombrotrophic peat bogs in southern Norway, extending back 300 years, have been measured for chronology, lead concentration, and lead isotope composition. Since southern Norway receives an airborne lead signal that accumulates emissions from the European continent, the trend in the four bog records can be used to correlate previously reported measurements from France, Switzerland, England, and Greenland that cover different ranges of time. When these are compiled, the integrated European record that emerges spans the last 2300 years of human influence on lead in the air over Europe and suggests human control of lead in …