—BASF Will Phase Out Lead Chromate “” BASF plans to stop producing lead chromate pigments by the end of 2014. The firm says its lead chromate plant in Besigheim, Germany, will become a hub for replacements that offer the same yellow and red hues. BASF already offers alternatives to lead chromate, according to Stefan Sütterlin, head of pigments business management in Europe, but customers, particularly in the coatings industry, have resisted change. Starting in May 2015, though, Europe’s REACH chemicals regulation bans the use of lead chromate pigments without government approval. /articles/90/i9/BASF-Phase-Lead-Chromate.html 20120227 Concentrates 90 9 /magazine/90/09009.html BASF Will Phase Out Lead Chromate pigments, lead chromate, REACH con Business Michael McCoy business BASF Will Phase Out Lead Chromate Chemical & Engineering News BASF Will Phase Out Lead Chromate BASF Will Phase Out Lead Chromate
by Michael McCoy | February 27, 2012
GETTING THE LEAD OUT University of Wisconsin, Madison, mascot Bucky Badger, named after Wisconsin's former lead miners, pours colorless potassium iodide solution into a colorless solution of lead nitrate, forming brilliant yellow, solid lead iodide. PHOTO BY BRENT NICASTRO Concerns over lead exposure in recent decades reflect heightened societal concerns for health and safety. All developed countries have banned two uses of lead that were once almost universal--tetraethyl lead and lead-based paint for residential use. The use of lead shot for hunting waterfowl has also been banned in the U.S. because bottom-feeding birds can ingest spent shot. Hunters must use steel shot instead.
by BASSAM Z. SHAKHASHIRI | September 08, 2003
C&EN: Latest News - Lead Binding Reexamined June 27, 2005 Volume 83, Number 26 p. 13 BIOCHEMISTRY Lead Binding Reexamined Trigonal pyramidal coordination to sulfur may be key to mechanism of lead poisoning DAVID BARRY Lead poisoning may be due to an unanticipated coordination geometry for lead in sulfur-rich sites, a new study suggests.
by DAVID BARRY | June 27, 2005
—EPA Urged To Retain Current Lead Limits “” EPA should consider keeping in place the existing air quality standard for lead, the agency’s staff says in a preliminary policy assessment. In 2008, the agency tightened the lead standard from 1.5 µg/m3 to 0.15 µg/m3. This was the first revision of the standard since it was initially set in 1978.
by Glenn Hess | January 21, 2013
—Limit on Lead in air could get axed “” The Bush Administration is considering elimination of a national limit for lead pollution in air. In a draft policy assessment released last month, EPA said it is weighing whether revocation of the air standard for lead "is an appropriate option," as part of its periodic reevaluation of the current standard of 1.5 µg per m3 of air for the neurotoxic metal, which must be done by September 2008. The agency is also evaluating whether to remove lead from the list of six pollutants it uses to determine the status of air quality, according to the draft document. Since the level of lead in gasoline was cut, airborne emissions of lead have dropped, the agency noted. EPA's draft document is available at www.epa.gov/ttn/naaqs/standards/pb/s_pb_cr_sp.html. In a related development, five studies published last month in Environmental Health Perspectives indicate that levels of lead previously thought to be safe are dangerous. For example, blood lead levels below 5 µg per deciliter have been found to elevate blood pressure and may have harmful effects on the heart. /articles/85/i2/Limit-Lead-air-axed.html 20070108 Concentrates 85 2 /magazine/85/8502.html Limit on Lead in air could get axed con govpol environment BP Limit on Lead in air could get axed Chemical & Engineering News Limit on Lead in air could get axed Limit on Lead in air could get axed
January 08, 2007
But recently, experts have been kicking around another possible player in the crime drop of the ’90s: lead. Cars burning leaded gasoline spewed the heavy metal into the air until 1973, when the Environmental Protection Agency mandated the fuel’s gradual phaseout. Lead-based paint was banned from newly built homes in 1978.
by Lauren K. Wolf | February 03, 2014
—Reducing Lead Levels “Draft government report links low-level lead exposure to negative health effects” Blood lead concentrations less than the federally established level of concern are associated with adverse health effects, a draft assessment by the National Toxicology Program concludes. Once finalized, the NTP assessment could prompt the federal government to lower lead exposure limits for workers as well as the blood lead level it considers to be elevated. Released on Oct. 14, the draft report finds sufficient evidence to associate blood lead concentrations lower than 5 μg/deciliter with decreased academic performance and cognitive function, and “increased incidence of attention deficit hyperactivity disorder and problem behaviors” in children. The report also finds sufficient evidence to associate blood lead levels below 10 μg/dL with delayed puberty, reduced growth, decreased IQ, and decreased hearing in children, as well as increased blood pressure and cardiovascular disease in adults. The current blood lead level of concern, set by the Centers for Disease Control & Prevention, is 10 μg/dL. Prior to 1991 the level was 25 μg/dL, and before 1985 it was 30 μg/dL. Observers predict that if NTP’s preliminary conclusions make it into the final report, CDC will be under pressure to lower the level again.
by Britt E. Erickson | October 24, 2011
—New rule for lead in drinking water may reduce US public health protection “Updated regulation would improve public notification but slow replacement of lead pipes” On Oct. 10, the US Environmental Protection Agency released the first major revision to its 1991 rule controlling lead and copper in drinking water. If the rule is finalized, citizens will receive speedier alerts of lead problems, but replacement of lead service lines will slow. The rule doesn’t address funding gaps that prevent full protection of public health. Lead is linked to lowered intelligence in children, and the EPA considers it unsafe at any level.
by Janet Pelley, special to C&EN | October 16, 2019
—Groups call for U.S. ban on lead in hair dyes “” A coalition of public health advocates is urging FDA to ban the use of lead acetate in hair dyes sold in the U.S. The group filed a petition on Feb. 27 requesting FDA to reverse a decision made in 1980 that allows up to 6,000 ppm lead in such dyes. Lead acetate, which is neurotoxic and carcinogenic, is banned in hair dyes sold in Canada and the European Union.
by Britt E. Erickson | March 06, 2017
—Lead Testing Clarified “Plastics and metals in toys will need testing, but new rule exempts many natural materials” The Consumer Product Safety Commission (CPSC) has made a final determination on what children’s products will have to be tested for lead under the new product safety law passed last year.
by David J. Hanson | September 21, 2009