title: Medical surveillance of civil engineering contractors on an ex-gasworks site.
mesh_terms: D002104:Cadmium / Q000009:adverse effects; D004738:Engineering; D004739:England; D005579:Fossil Fuels / Q000009:adverse effects*; D006801:Humans; D008628:Mercury / Q000009:adverse effects; D009784:Occupational Diseases / Q000517:prevention & control*; D011210:Power Plants; D012989:Soil Pollutants / Q000009:adverse effects*
chemical_list: D005579:Fossil Fuels; D012989:Soil Pollutants; D002104:Cadmium; D008628:Mercury