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.
Roseville is a city in Placer County, California, United States, located in the metropolitan area of Sacramento. As of January 1, 2009 the population was 112,343. Roseville's population is expected to reach 133,680 by 2015. Interstate 80 runs through Roseville and State Route 65 bisects the northern part of the city.