A mass tort is a civil action involving numerous plaintiffs against one or a few corporate defendants. The tort may involve, for example, personal injuries suffered by numerous plaintiffs as a result of a defective product, or a mass disaster in which there were many injured persons, such as an airplane crash, or exposure of a large group of people to toxic chemicals or pharmaceuticals.
Ontario is a city in Richland County in the U.S. state of Ohio. It is part of the Mansfield, Ohio Metropolitan Statistical Area. The population was 5,303 at the 2000 census. Ontario is a major regional retail hub serving the entire North-Central Ohio area, with a shopping population of over 150,000.