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Occup Environ Med 2001;58:682 doi:10.1136/oem.58.10.682
  • Correspondence

Personal exposure of children to nitrogen dioxide

  1. L A PALIN,
  2. M BINOTTI,
  3. G BONA,
  4. M PANELLA
  1. Dipartimento di Scienze Mediche
  2. Facoltà di Medicina e Chirurgia di Novara
  3. Università del Piemonte Orientale, Cattedra di Igiene, Via Solaroli 17, 28100 Novara, Italy
  1. Dr M Panella panella{at}med.unipmn.it

    We read with interest a recently published study on personal exposure of asthmatic children to nitrogen dioxide (NO2), relative to concentrations in outdoor air.1 In their results, the authors did not find:

    “ . . .significant correlation . . . between each child's weekly mean personal exposures and mean outdoor concentrations for the corresponding periods”;

    “ . . .marked evidence of seasonality” on personal exposure .

    They concluded: “ . . .at low concentrations, changes in NO2 in outdoor air . . .contribute little to variations …

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