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Lead

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Lead Ink Could Unveil Herculaneum Scrolls, Researchers Test with Fake Scrolls
archaeology21 days ago

Lead Ink Could Unveil Herculaneum Scrolls, Researchers Test with Fake Scrolls

Researchers propose that lead in the ink of Herculaneum scrolls could make the writing detectable with X-ray CT, enabling virtual unrolling to reveal text; to test the idea, they created fake scrolls with varying lead concentrations, burned them, scanned with 3D CT, and used an algorithm to extract the text, demonstrating that lead enhances contrast and can be detected by handheld XRF—potentially guiding archaeologists to decipher carbonized scrolls.

via Gizmodo|
#archaeology#herculaneum#imaging
Texas AG Opens Industry-Wide Probe Into Heavy Metals in Protein Powders
health4 months ago

Texas AG Opens Industry-Wide Probe Into Heavy Metals in Protein Powders

Texas Attorney General Ken Paxton announced an industry-wide investigation into protein powder manufacturers after independent testing by Consumer Reports and the Clean Label Project found concerning levels of heavy metals, including lead and cadmium, in popular powders. Consumer Reports reported higher lead in plant-based powders (about nine times that of dairy whey and twice that of beef-based products) and noted cadmium and inorganic arsenic concerns in a few items; Clean Label Project found 47% of 160 products exceeded California Proposition 65 limits for heavy metals in a single serving. Health risks from lead exposure are well-documented, with no known safe level per the FDA. Paxton said the probe will examine possible violations of the Texas Deceptive Trade Practices Act related to marketing safety claims and failure to disclose known heavy-metal contamination.

via Office of the Attorney General (.gov)|
#cadmium#california-proposition-65#health
East Wing Debris Dump at Golf Course Reveals Toxic Metals
politics5 months ago

East Wing Debris Dump at Golf Course Reveals Toxic Metals

Soil excavated from the White House East Wing demolition and dumped at East Potomac Golf Links tested positive for lead, chromium and other toxic metals, plus PCBs and pesticides, according to an interim Virginia engineering report. About 30,000 cubic yards of debris have been moved to the site amid lawsuits by the DC Preservation League alleging unlawful dumping and concerns over federal landmark protections; Interior Department officials say testing met legal standards and safety assessments are ongoing, with courts weighing related challenges and potential course alterations.

via WTOP|
#east-potomac-golf-links#east-wing#lead
49 Infant Formulas: Mixed Safety Findings on Lead and Arsenic
health7 months ago

49 Infant Formulas: Mixed Safety Findings on Lead and Arsenic

Consumer Reports tested 49 ready-to-feed, concentrated, and powdered infant formulas and found that about half had low or undetected contaminants, while 26 formulas contained inorganic arsenic or lead at concerning levels. The results show a mix of safer, affordable options (especially among ready-to-feed liquids) and products with notable contamination, plus some hypoallergenic formulas performing poorly. The report underscores the need for more transparent, frequent testing and regulatory action in the U.S., notes EU limits for context, and advises parents to consult pediatricians and be cautious with imported formulas not under FDA oversight.

via Consumer Reports|
#arsenic#consumer-reports#contaminants
Toxicologist's Tips to Protect Against Lead in Food
health11 months ago

Toxicologist's Tips to Protect Against Lead in Food

Lead, a toxic metal naturally present in the environment and introduced through human activities, can contaminate food, especially if crops are grown in contaminated soil or areas with pollution. While zero exposure is unlikely, reducing intake through a diverse, nutrient-rich diet and choosing brands that test for lead can help protect vulnerable populations, particularly children and women of childbearing age.

via CNN|
#contamination#dietary-exposure#food-safety