P2Rx™ centers distribute news articles and other timely P2 information. Centers either post news headlines and abstracts, or distribute them via periodic e-mail, or both. P2Rx™ publishes the national news in RSS format .
EPA Proposes Standards to Reduce Mercury Discharges from Dental Offices (09/25/2014)
WASHINGTON -- The U.S. Environmental Protection Agency (EPA) today proposed standards under the Clean Water Act to help cut discharges of dental amalgam to the environment. Amalgam is a mixture of mercury and other metals that dentists use to fill cavities. Mercury is discharged when dentists remove old fillings or remove excess amalgam when placing a new filling. Studies show about half the mercury that enters Publicly Owned Treatment Works (POTWs) comes from dental offices. Mercury from amalgam can then make its way into the environment in a number of ways, including through discharge to water bodies. Contact with some microorganisms can help create methylmercury, a highly toxic form of mercury that builds up in fish, shellfish and fish-eating animals. Fish and shellfish are the main sources of human exposure to methylmercury.
More than twice as much mercury in environment as thought (09/04/2014)
The most comprehensive estimate of mercury released into the environment is putting a new spotlight on the potent neurotoxin. By accounting for mercury in consumer products, such as thermostats, and released by industrial processes, the calculations more than double previous tallies of the amount of mercury that has entered the environment since 1850. The analysis also reveals a previously unknown spike in mercury emissions during the 1970s. The finding doesn't indicate a greater risk to human health; scientists already know how much mercury most people are exposed to. But it does show how tighter regulations over the past 4 decades have lowered the total amount of mercury emitted to the global environment--even as some industries in the developing world continue to expand.
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