Why use a dog to search for mercury?
Experience in Sweden showed that use of mercury-detecting dogs is both a cost-effective way to find mercury and an excellent tool for teaching students about the dangers of mercury. The MPCA’s Mercury-Free Zone Program is modeled after a successful Swedish program. In 1999, two specially trained dogs checked 1,100 schools in Sweden. As a result, about 1.4 tons of mercury were removed from these schools.