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Nickel sulfate is classified as a human carcinogen [9] [10] based on increased respiratory cancer risks observed in epidemiological studies of sulfidic ore refinery workers. [11] In a 2-year inhalation study in F344 rats and B6C3F1 mice, there was no evidence of carcinogenic activity, although increased lung inflammations and bronchial lymph ...
The risk of an object eliciting nickel allergy is linked to the amount of nickel released by its surface (and not to its total nickel content). [2] Suspected objects can be screened by wiping the surface with a 1% dimethylglyoxime solution that turns pink if more than 0.5 μg/cm 2 per week is released by the surface. [2]
Nickel mines in the Philippines, while beneficial to the economy, have been harmful to both human health and well-being as well as to the environment. [16] One example of this is in the Mindoro Oriental region, where nickel mines have left behind toxic mine tailings. This has polluted the water, which is necessary for both humans to drink as ...
Nearly 50 countries require warnings about the health risks of alcohol, according to the advisory, but only South Korea and Ireland mention cancer specifically, with Ireland's new warnings ...
The National Institute for Occupational Safety and Health (NIOSH) sets the recommended exposure limit (REL) at 0.015 mg/m 3 per 8-hour workday. At 10 mg/m 3, nickel is immediately dangerous to life and health. [142] Nickel carbonyl [Ni(CO) 4] is an extremely toxic gas.
The toxic effects of arsenic, mercury and lead were known to the ancients but methodical studies of the overall toxicity of heavy metals appear to date from only 1868. In that year, Wanklyn and Chapman speculated on the adverse effects of the heavy metals "arsenic, lead, copper, zinc, iron and manganese " in drinking water .
U.S. Surgeon General Dr. Vivek Murthy warned in a recent advisory about alcohol use increasing cancer risk. The advisory notes that alcohol can increase the risk of throat, liver, esophageal ...
The toxic effects of tin compounds are based on its interference with iron and copper metabolism. For example, it affects heme and cytochrome P450, and decreases their effectiveness. [5] Organotin compounds can be very toxic. "Tri-n-alkyltins" are phytotoxic and, depending on the organic groups, can be powerful bactericides and fungicides.