Assessment of personal exposure to ozone in asthmatic children residing in Mexico City
Fuente:
Redalyc
Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Instituto Nacional de Salud Pública
2008
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1876463217025220608 |
|---|---|
| author | Arthur M Winer |
| author_facet | Arthur M Winer |
| contents | Assessment of personal exposure to ozone in asthmatic children residing in Mexico City Arthur M Winer Pablo Cicero-Fernández Ma. Guadalupe Doris Vélez-Márquez Juan José Sienra-Monge Matiana Ramírez-Aguilar Albino Barraza-Villarreal Hortensia Moreno-Macías Marlene Cortez-Lugo Isabelle Romieu Salud ozone asthmatics Mexico City activity patterns Personal measurements 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<0.05). Conclusions. The O3w concentrations can be used as a proxy for O3p, taking into account time-activity patterns and the place of residence of asthmatic Mexican children. 2008 artículo científico 0036-3634 https://www.redalyc.org/articulo.oa?id=10650110 en http://www.redalyc.org/revista.oa?id=106 Salud Pública de México application/pdf Instituto Nacional de Salud Pública Salud Pública de México (México) Num.1 Vol.50 |
| format | Artículo científico |
| id | redalyc_10650110 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Instituto Nacional de Salud Pública |
| spellingShingle | Assessment of personal exposure to ozone in asthmatic children residing in Mexico City Arthur M Winer Salud ozone asthmatics Mexico City activity patterns Personal measurements Assessment of personal exposure to ozone in asthmatic children residing in Mexico City Arthur M Winer Pablo Cicero-Fernández Ma. Guadalupe Doris Vélez-Márquez Juan José Sienra-Monge Matiana Ramírez-Aguilar Albino Barraza-Villarreal Hortensia Moreno-Macías Marlene Cortez-Lugo Isabelle Romieu Salud ozone asthmatics Mexico City activity patterns Personal measurements 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<0.05). Conclusions. The O3w concentrations can be used as a proxy for O3p, taking into account time-activity patterns and the place of residence of asthmatic Mexican children. 2008 artículo científico 0036-3634 https://www.redalyc.org/articulo.oa?id=10650110 en http://www.redalyc.org/revista.oa?id=106 Salud Pública de México application/pdf Instituto Nacional de Salud Pública Salud Pública de México (México) Num.1 Vol.50 |
| title | Assessment of personal exposure to ozone in asthmatic children residing in Mexico City |
| topic | Salud ozone asthmatics Mexico City activity patterns Personal measurements |
| url | https://www.redalyc.org/articulo.oa?id=10650110 |