Mercury (element) elevated over outdoor concentrations, at a range of 0.0065 – 0.523 μg/m. The average was 0.069 μg/m. Mercury also enters into the environment through the improper disposal (e.g., land filling, incineration) of certain products. Products containing mercury include: auto parts, batteries, fluorescent bulbs, medical products, thermometers, and thermostats. Due to health concerns (see below), toxics use reduction efforts are cutting back or eliminating mercury in such products. For example, the amount of mercury sold in thermostats in the United States decreased from 14.5 tons in 2004 to 3.9 tons in 2007. Most thermometers now use pigmented alcohol instead of mercury,
Real and substantial connection Real and substantial connection In Canadian law, a real and substantial connection or the real and substantial connection test is a legal principle used to determine whether a subject matter falls within a jurisdiction. The phrase was first adopted in Canada in the Supreme Court of Canada decision of "Libman v. The Queen" (1985). It is used in several circumstances in matters of conflict of laws. The test is primarily used to determine whether a Canadian court will recognize a foreign judgment where there was service ex juris. Courts will usually recognize a judgment from a foreign province or nation