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.
Sewickley is a borough in Allegheny County, Pennsylvania, 12 miles (19 km) west northwest of Pittsburgh along the Ohio River. It is a residential suburb of Pittsburgh. The population was 3,902 at the 2000 census. The Sewickley Bridge crosses the Ohio River at Sewickley.