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 located in San Bernardino County, California, United States. As of the 2000 Census, the city had a total population of 170,373. It is the home of LA/Ontario International Airport and the Ontario Mills. It is also the former home of the Ontario Motor Speedway. It takes its name from the Ontario Model Colony development established in 1882 by the Canadian engineer George Chaffey and his brothers William Chaffey and Charles Chaffey. They named the settlement after their home province of Ontario, Canada.