title: Use of personal passive samplers for measurement of NO(2), NO, and O(3) levels in panel studies.
abstract: We measured personal exposure to nitrogen dioxide (NO(2)), nitrogen monoxide (NO), and ozone (O(3)), using personal passive samplers during three 4-day periods, in a panel study of asthmatics continuing the normal activities of everyday life. Fifty-five adults, mean age 42 years, 53% men, and 39 children, mean age 11 years, 67% boys, wore two Ogawa passive samplers simultaneously: one for O(3), the other for NO(2) and NO. Mean outdoor pollution was measured at a regional monitoring network. Personal exposure levels were scattered; they were (on average) higher than stationary-site levels for NO and lower for NO(2) and O(3). In adults, 41% of the variance of personal exposure to NO(2) was explained by mean stationary-site measurement levels (P<0.0001). Twenty-one percent additional variance was explained by living near a main road, not having an extractor fan over the cooker, older age, and male sex. NO and O(3) personal exposures correlated poorly with stationary-site measurements. In panel studies of the health effects of air pollution, personal exposure to NO(2) and NO can be measured satisfactorily by passive samplers: such measurements are necessary for NO but not for NO(2). For O(3), accurate personal exposure measurement remains a challenge and further technical development is required.
authors.affiliation: Institut National de la Santé et de la Recherche Médicale U408, Paris, France.
authors.forename: R
authors.initials: R
authors.lastname: Liard
authors.forename: M
authors.initials: M
authors.lastname: Zureik
authors.forename: Y
authors.initials: Y
authors.lastname: Le Moullec
authors.forename: D
authors.initials: D
authors.lastname: Soussan
authors.forename: M
authors.initials: M
authors.lastname: Glorian
authors.forename: A
authors.initials: A
authors.lastname: Grimfeld
authors.forename: F
authors.initials: F
authors.lastname: Neukirch
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D000328:Adult; D000397:Air Pollution / Q000032:analysis*; D001249:Asthma; D002648:Child; D004781:Environmental Exposure / Q000032:analysis*; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009569:Nitric Oxide / Q000032:analysis*; D009585:Nitrogen Dioxide / Q000032:analysis*; D010126:Ozone / Q000032:analysis*
chemical_list: D009569:Nitric Oxide; D010126:Ozone; D009585:Nitrogen Dioxide