Armley asbestos disaster
On 20 July 1982, Yorkshire Television broadcast the documentary "Alice - A Fight For Life", predominantly the story of Alice Jefferson, who had worked at the Acre Mill asbestos factory in Hebden Bridge for just nine months when she was 17 years old. Thirty years later she was diagnosed with mesothelioma and given only six months to live. The documentary was also an "exposé on the workings of the asbestos industry." Its broadcast resulted in £60 million being knocked off T&N's share price overnight, headlines in the national newspapers, and the setting up of a government enquiry. Within ten days the government had halved the legal limit for asbestos dust in the workplace. In 1988 Yorkshire Television picked up the "Yorkshire Evening Post" story and produced a second critical investigation focusing on the pattern of deaths in Armley, and contradicting the government's reasons for refusing an inquiry. Called "Too Close to Home", it was broadcast as part of the "First Tuesday" documentary series on 6 December 1988.
Wittenoom, Western Australia
The Australian Blue Asbestos Company employed 6,500 men and 500 women in the mining and milling of crocidolite at Wittenoom between 1943 and 1966. This cohort has been traced periodically for vital status and cause of death since 1975. By 1986 there were 85 deaths from pleural and peritoneal mesothelioma. None occurred within ten years of first exposure to crocidolite. A survey of dustiness in the industry conducted in 1966 has provided a basis for estimates of cumulative crocidolite exposure of the members of the cohort. Exposure-response relationships have been examined. Mesothelioma incidence rates increase exponentially with time since first exposure and also increase with intensity of exposure to crocidolite. Mathematical modelling of the relationship between mesothelioma incidence and intensity of exposure, duration of exposure and time since first exposure results in an estimate of up to 700 cases of mesothelioma in this cohort by the year 2020.