Temporal trends in urban and rural blood lead concentrations.
A long term programme to assess the impact of reduced lead emissions in the UK has been established in central London and rural Suffolk. Blood lead concentrations of 5 and 6 year old children and their mothers both show an urban-rural difference of about 1.5 μg/dl, which is related to the urban-rural differences in air and dust lead concentrations between areas.
Department of Child Health, Westminster Children's Hospital, Vincent Square, SW1P 2NS, London.
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