Hafnium

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Thursday, July 5, 2007

Mexico: miners on strike (Grupo Mexico)

"Published: 07.05.2007

Mexico miners begin 24-hour walkout over safety concerns

The Associated Press
MEXICO CITY - Mexican miners began a 24-hour nationwide walkout Thursday to press demands for labor authorities to address safety concerns.
Carlos Pavon, secretary of political affairs at the National Mining and Metal Workers Union, said the walkout began in the early morning, although the union didn't know yet how many workers had honored the strike call.
The walkout affects, among others, Grupo Mexico, a major copper producer, and Industrias Penoles, the world's top silver producer. The 250,000-member union also includes workers of steel plants owned by Arcelor Mittal in the Pacific port of Lazaro Cardenas.
An official at Grupo Mexico said that early reports showed its zinc mine in the northern state of Zacatecas was 30 percent affected by the walkout and that work was halted at a small mine in the city of Taxco, in the Pacific coast state of Guerrero. The official had no report yet from Cananea, the country's largest copper mine, in the northwestern state of Sonora.............."
http://www.tucsoncitizen.com/ss/business_headlines/56660

Tuesday, July 3, 2007

Improved early morning diet can help block some effects of lead

Bulletin of Environmental Contamination and Toxicology ; VOL. 56 ; ISSUE: 4 ; PBD: Apr 1996
Gulson, B.L. [Macquarie Univ., Sydney (Australia)]|[CSIRO/dEM, North Ryde (Australia)] ; Howarth, D. [CSIRO/dEM, North Ryde (Australia)] ; Mizon, K.J. [Lyell McEwin Health Service, Elizabeth Vale (Australia)][and others]
ABSTRACT: The goal of hazard abatement is the identification and systematic elimination of lead hazards in the community, which should ultimately result in lowering of blood lead (PbB), especially in children. Such a goal is a daunting task in mining or smelting communities such as Broken Hill in Australia where industrial activities operating for more than 100 years and natural weathering over millennia have resulted in widespread contamination.The single most important factor in managing of childhood lead poisoning is reducing the child`s exposure to lead. Luke reviewed the remediation programs in seven large smelter operations outside Australia using environmental and biological indices, before and after intervention, to gauge the success. He concluded that outcomes varied from temporary improvements in Kellog, Idaho to apparently more successful outcomes in El Paso and Dallas, Texas. At Port Pirie, Luke identified that the most significant predictor of a reduction in PbB levels was permanent relocation out of the high risk areas, whereas in a later assessment Maynard identified, in addition to permanent relocation, level of expenditure on house dedusting and refurbishment, improved dust hygiene practices, and improved early morning diet as likely to reduce PbB levels. The aim of this study was to evaluate the impact on PbB of relocation of two families from their source of lead, in this case from the Broken Hill mining community. To gauge the impact of relocation, the results are compared with twenty seven children who relocated within the Broken Hill community from high to low risk areas. 24 refs., 1 tab.