Fiche du document
2008
- handle: 10670/1.8mmkri
- 0036-3634
Ce document est lié à :
http://www.redalyc.org/revista.oa
Salud Pública de México
Sujets proches
Childhood Youngsters Pedology (Child study) Kids (Children)Citer ce document
Arthur M Winer et al., « Assessment of personal exposure to ozone in asthmatic children residing in Mexico City », Salud Pública de México, ID : 10670/1.8mmkri
Métriques
Partage / Export
Résumé
"Objective. A study was conducted to evaluate personal ozone exposure (O3p) among asthmatic children residing inMexico City. Material and Methods. A total of 158 children were recruited from December 1998 to April 2000. On average, three O3p measurements were obtained per child using passive badges. Time-activity patterns were recorded in a diary. Daily ambient ozone measurements (O3a) were obtained from the fixed station, according to children's residence.Levels of O3a and ozone, weighted by time spent in different micro-environments (O3w), were used as independent variables in order to model O3p concentrations using a mixed-effects model. Results. Mean O3p was 7.8 ppb. The main variables in the model were: time spent indoors, distance between residence and fixed station, follow-up group, and two interaction terms (overall R2=0.50, p