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- W2379665621 abstract "Objective To assess the correlation between the level of ambient particulate matter in sand-dust climate and peak expiratory flow rate (PEFR value) of the exposed children in Inner Mongolia of China. Methods PEFR values of the subject children were measured with a mini-wright peak flow meter three times per day continuously for 40 days, with a standard procedure and recorded by themselves. Meanwhile, the weather data and the ambient concentrations of SO2, NO2, CO, PM10 and PM2.5 were also monitored. The SPSS 13.0 was used for statistical analysis of the data. Results The concentration of PM10 increased to 3.183 mg/m3 and PM2.5 to 1.067 mg/m3 when the sand-dust weather broke out and the increase in PM10 was more than that in PM2.5.The schoolboy’s PEFR value decreased to 268.67 L/min and the schoolgirl to 256.79 L/min when the sand-dust weather broke out. A negative relationship was observed between the concentration of PM2.5 and the schoolgirl’s PEFR value.(P0.01). The children’s PEFR values recovered to the original level with the decrease of ambient PM10 and PM2.5 in one week after the sand-dust weather was past. Conclusion The levels of PM10 and PM2.5 may increase obviously in sand-dust weather. A negative relationship was observed between the concentration of PM2.5 and the schoolgirl’s PEFR value(P0.01). The health effects of the sand climates may be acute." @default.
- W2379665621 created "2016-06-24" @default.
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- W2379665621 date "2008-01-01" @default.
- W2379665621 modified "2023-09-25" @default.
- W2379665621 title "Correlation between Sand Dust Weather and Peak Expiratory Flow Rate of Children in Inner Mongolia of China" @default.
- W2379665621 hasPublicationYear "2008" @default.
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