Although hair dye is a popular cosmetic item, its popularity is not without some undesirable consequences. Hair dye manufacturing causes significant environmental issues, including the release of some toxic chemicals into the air. Some of these toxins may have adverse medical effects to people and animals that come into contact with them, whether directly or via their excrement. Dyes are also linked to cancer risks and premature hair graying in children with long-term exposure before age 5 years old. Additionally, since not all colors are approved by the FDA for use on human skin due to their potential carcinogenic or harmful effects, they might be manufactured using materials that other countries would consider hazardous waste material. Steven Hentges of the University of Arizona in Tucson, Arizona, along with a team of researchers from the University of Florida and New Zealand's Landcare Research, provided more evidence of this belief when they studied 40 US Phoenix homes for three years following a dye application that resulted in 626 gallons of water being used. The researchers found a significant amount of tetraethyl lead (TEL) residues in people's hair and up to 15 times more TEL than that permitted by federal and state governments. The scientists were surprised to discover that the homes had an average level around 1 milligram per gram (mg/g) or triple the acceptable national limit established by the Environmental Protection Agency (EPA). The EPA limit is 0.3 mg/g, whereas Arizona state regulations require a maximum of 0.09 mg/g. The state limit is five times stricter than that set by the EPA and proposed in the Consumer Product Safety Commission's (CPSC) draft proposal, which would be 0.02 mg/g. The researchers also found TEL concentrations ranging from 4 to 6 mg/g in these homes, which was more than double that of the 50 homes they had previously studied in Florida and New Zealand that used only water-based dyes; those concentrations were less than half that of the Arizona homes tested for years with hair dyes using both water- and organic solvent-based products. Read 50 Years Old Plus Size Women Haircuts In a recent study published in the Journal of Environmental Monitoring, researchers analyzed the levels of lead and mercury found in the hair of tanning salon customers in Australia. The researchers discovered that dyes and oils used in tanning services contain four to five times as much lead as was previously thought. The highest level of lead found—40mmol/kg—was in hair from women whose bodies had been exposed to prolonged ultraviolet radiation for an average of 13 minutes per session over a period of three years. Must Read :- Hair Color Ideas for brunettes For more Article check our more website :- herhairextension.wordpress.com
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