by Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory, for sale by the National Technical Information Service in Cinncinnati, Ohio, Springfield, Va .
Written in English
|Statement||by Klaus Schwitzgebel ... [et al.]|
|Series||Environmental protection technology series ; EPA-600/2-78-065 a, Environmental protection technology series ; EPA-600/2-78-065 b|
|Contributions||Schwitzgebel, Klaus, Industrial Environmental Research Laboratory (Cincinnati, Ohio)|
|The Physical Object|
EPA/b March TRACE ELEMENT STUDY AT A PRIMARY COPPER SMELTER Volume II: Report Appendix by Klaus Schwitzgebel, Richard T. Coleman Robert V. Collins, Robert M. Mann, and Carol M. Thompson Radian Corporation Austin, Texas Contract No. Project Officers Margaret J. Stasikowski and John 0. Trace Element Study At A Primary Copper Smelter, EPA/a and b, U. S. Environmental Protection Agency, Research Triangle Park, NC, March Systems Study For Control Of Emissions, Primary Nonferrous Smelting Industry, Volume II: Appendices A and B, PB , National Technical Information Service, Springfield, VA, June Journal of Trace Elements in Medicine and Biology. Vol Issues 2–3, 2 December , The aim of the study was to compare bone lead concentrations in cortical and trabecular bones in long-term exposed primary copper and lead smelter workers, and to relate the measured concentrations to the previous lead exposure of the workers. Cited by: covellite . It has been shown that covellite is enriched with numerous trace elements of primary chalcopyrite during weathering processes . Then, as a consequence of ore melting during metal production, marker trace elements are moved into sulfide and copper droplets and enriched with alloying additions and : Dmitry A. Artemyev, Maksim N. Ankushev.
Measurements of trace element concentrations, including heavy metals in the atmosphere near a copper smelter in Port Kembla, New South Wales, have shown improvements in air quality, attributed mainly to modernisation of the plant, with more than 85% decrease (for each element) in airborne Cr, Zn, Se, Ag, Cd, Sb, Au and Pb, associated with Cited by: The ideal TMA level of copper established by Trace Elements, Inc. is Trace Elements, Inc., P.O. Box , Addison, Texas milligrams percent. When sampled properly, TMA can provide a good index of nutritional copper status13 14 and relationship to other synergistic and antagonistic trace Size: KB. Primary Copper Smelting General1 Copper ore is produced in 13 states. In , Arizona produced 60 percent of the total U. S. ore. Fourteen domestic mines accounted for more than 95 percent of the megagrams (Mg) ( millon tons) of ore produced in Copper is produced in the U. S. primarily by pyrometallurgical smelting. of tin and antimony, both commonly present as trace elements in electrical and electronic waste, in secondary (i.e., sulfur-free) copper smelting conditions. The experiments were conducted in oxygen partial pressure range of –atm, covering the different process steps in copperCited by: 4.
A Gradient Study of 34 Elements in the Vicinity of a Copper-Nickel Smelter in the Kola Peninsula. Authors; Authors and affiliations The high concentrations observed for many trace elements in the humus horizon indicates that it acts as an active biogeochemical barrier against downward transport of these elements. Annual primary Cited by: The only spatial component considered in previous studies of trace element contamination in Torreón was crude distance to the smelter complex, indicating that the smelter was a possible point source for some elements.4,22Our study adds detailed location and distance spatial components and the evaluation of multiple trace elements to the study of toxic exposures in Cited by: Primary Lead Smelting General15 Lead is found naturally as a sulfide ore containing small amounts of copper, iron, zinc, precious metals, and other trace elements. The lead in this ore, typically after being concentrated at or near the mine (see Section ), is processed into metallurgical lead at 4 facilities in the U. Size: KB. ENVIRONMENTAL AND EXPERIMENTAL BOT , The effects of copper smelter effluents on a desert grassland plant community were investigated by soil analyses for trace elements and pH, and quantitative sampling of vegetation. Along transects away from the smelter soil copper and pH decreased and plant species diversity by: