Dental amalgam controversy of mercury received by sewage treatment plants. The mercury contaminates the treatment plant sludge, which is typically disposed of by land application, landfilling or incineration. Several states, including New Jersey, New York, and Michigan, have required the installation of dental amalgam separators prior to 2017. EPA promulgated an effluent guidelines regulation in 2017 which prohibits most dental practices from disposing amalgam waste down the drain. Most dental offices nationwide are now required to use amalgam separators. The WHO reported in 2005 that in the United Kingdom mercury from amalgam accounted for 5% of total mercury emissions. In Canada, dental amalgam
Amalgam Digital in hip hop music and distribution. In an April 2008 issue, "The Source" proclaimed that Amalgam Digital has "its finger on the pulse of hip-hop's future." Based in East Boston, the Amalgam Digital label is distributed exclusively by Amalgam Entertainment LLC, a distribution company that offers management, marketing, and promotional services. As an independent label, Amalgam Digital been home to such artists as Max B, Saigon, Curren$y, Chuuwee, Joe Budden, Peedi Crakk, Tash, Kurious, Juggaknots, Tame One, and Lil B. Joe Budden's album released by the label, "Padded Room", reached #42 in the "Billboard" 200 chart and #21 in the