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  1. Ozone measurement with passive samplers : Validation and use for ozone pollution assessment in Montpellier, France.

    Article - En anglais

    The objective of this pilot study was to determine a way of assessing personal exposure to ozone (O3) for use in a study of O3 effects on health.

    Passive samplers (Passam, AG) were used to measure pollution levels in Montpellier, France.

    They were standardized using an O3 analyzer.

    Blanks and duplicates were tested to evaluate sensitivity (6.6 mug/m3) and imprecision (2 mug/m3).

    They were validated by comparing on-site measurements with those of the automatic UV absorption analyzers of the regional air quality network (AMPADI-LR).

    The correlation coefficient was r=0.9, p<10-3, and the regression coefficient was close to 1. The on-site measurements provided information about local pollution.

    Distance from NO2 sources (urban traffic) and sunlight intensity were identified as environmental determinants of O3 pollution.

    Residential microenvironmental concentrations and personal exposure were measured for 110 subjects.

    The indoor/outdoor ratio is higher than in Mexico City and higher than in Toronto in summer but comparable with that in Toronto in winter.

    The relationship between personal exposure and indoor home measurements is closer than that between personal exposure and outdoor home environment measurements.

    This is especially true for the spring and summer months, when the correlation between indoor and outdoor measurements is low (r=0.23, p<0.05). (...)

    Mots-clés Pascal : France, Europe, Pollution air, Ozone, Echelle pilote, Echantillonneur, Détection passive, Performance, Contrôle, Qualité air, Zone urbaine, Teneur, Teneur air ambiant, Pollution intérieur, Variation saisonnière, Critère qualité air

    Mots-clés Pascal anglais : France, Europe, Air pollution, Ozone, Pilot plant scale, Sampler, Passive detection, Performance, Check, Air quality, Urban area, Content, Ambient air concentration, Indoor pollution, Seasonal variation, Air quality index

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0104897

    Code Inist : 001D16C03. Création : 16/11/1999.