Bronchitis in Two Integrated Steelworks—II. Sulphur Dioxide and Particulate Atmospheric Pollution in and Around the Two Works

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Abstract
Measurements of sulphur dioxide and particulate atmospheric pollution in and around two large integrated steel works in South Wales are presented in some detail, together with a description of the sampling techniques used. Within the two works 252 sites were visited at Ebbw Vale and 300 at Port Talbot. For the estimation of sulphur dioxide, 689 and 677 samples were taken at Ebbw Vale and Port Talbot respectively, the total sampling times concerned being 9521 and 13050 hr. For particulate pollution 336 and 416 samples were taken at Ebbw Vale and Port Talbot, total sampling times covering 10735 and 12949 hr. In the related towns sulphur dioxide and smoke density pollutions were measured on a daily basis over a 3-year period at four sites at Ebbw Vale and seven sites at Port Talbot. Standard deposit gauges were also operated for three years at nine sites, five being at Ebbw Vale and four at Port Talbot. So far as we know this investigation is the most extensive in these respects as yet undertaken in the steel industry in Great Britain. The findings for both types of pollution are discussed in the light of the current literature. Emphasis is placed on the unexpectedly low levels of pollution noted.

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