Source: Annual Congress 2002 - Exposure to chemicals
Disease area: Airway diseases, Paediatric lung diseases

Abstract

All the studied schoolars lived and attend an school within an area of 6 square kilometers whose center was occupied by an athmosferic monitoring station. They were trained in the use of their basal asthma medication ( G.I.N.A scheme) the measurement of the peack flow and the registry of any additional symptom as well as extra medication and to report them in a diary book. We receive daily information from ten athmoferic monitoring stations: ozone and particulated matter(pm10) but also SOx , NOx temperature and relative humididity. The summation of the figures for ozone in the ten stations, used as a mean were, maximum 120.80 ppb, minimum 5.3 and average 39.08 whereas PM 10 216.93; 23.07 and 85.01 respectivelly. The level of athmosferic pollutants between the stations varied enough to differentiate them in between. The most frecuent and significative findings among the schoolars were the presence of cough and the utilization of salbutamol as rescue medication; related to pm10. cold and lack of humididity. The two stations with the highest figures, either for ozone or pm10, were the ones with more complains; twice higher with particulated matter.There were no statistical difference in the peack flow meditions between these two stations but always preclude the the start of symptoms with increased variability probably due to pm10.

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G. S. Diaz, G. Mendoza, D. Mancilla, M. H. Vargas, T. Victor (Mexico City, Mexico). The behaviour of asthma in 75 children aged 10, living under different air pollution conditions. Follow up during one school year. Eur Respir J 2002; 20: Suppl. 38, 864

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