Armley asbestos disaster
The contamination was the result of the activities of a local asbestos factory, part of the Turner & Newall (T&N) group (often referred to by the name of its founders, J. W. Roberts Ltd.) and occurred between the end of the 19th century and 1959 when the factory eventually closed. At its peak the factory had 250 employees. At least 300 former employees are believed to have died from asbestos-related illnesses, and a number of cancer deaths in the Armley area were traced to the factory in 1988 as a result of an investigation by the "Yorkshire Evening Post". The estate was found to have the highest incidence in the country of mesothelioma. As the interval between exposure and diagnosis can be up to 50 years the number of further deaths which may occur due to the factory's emissions or residual dust since its closure cannot be predicted.
Astley Green Colliery Museum
Astley Green Colliery exploited deep coal seams of the Manchester Coalfield underneath the peat bog known as Chat Moss, and was driven by the high demand for coal during the late 19th and early 20th centuries and the exhaustion of supplies of coal in the Irwell Valley. Shaft sinking began in 1908 by the Pilkington Colliery Company, a subsidiary of the Clifton and Kersley Coal Company, and the pit began production in 1912. In 1928 the colliery was amalgamated with other local collieries to form Manchester Collieries. The mine was modernised when the coal industry was nationalised in 1947. Astley Green Colliery was closed in 1970 and was subsequently opened to the public as a museum.