Elementary School Absenteeism and Air Pollution
Source: Inhalation Toxicology, Volume 12, Number 11, 1 November 2000 , pp. 997-1016(20)
Publisher: Informa Healthcare
Abstract:This study assessed the association between ambient air pollution and daily elementary school absenteeism in Washoe County, NV, between 1996 and 1998. All 57 elementary schools in Washoe County in northern Nevada were included in the data set. There was a total of 27,793 student enrollments during this study period. The daily average absence rate was 5.09% (±1.54%). Air pollutant values including PM10, O3, and CO were obtained from seven air monitoring stations. Weather variables were collected from five of seven stations and from the Western Regional Climate Center. The daily average concentrations of PM10,, CO, and O3 were 32.44 µg/m3, 2.73 ppm, and 37.45 ppb, respectively. Student absenteeism was regressed on the three air pollutants, weather variables, and other confounding factors, using autoregression analysis. After adjusting for the effects of weather variables, day of the week, month, and holiday indicators, and time trend, we found that CO and O3 were statistically significant predictors of daily absenteeism in elementary schools. For every 1.0 ppm and 50 ppb increase in CO and O3, the absence rate would increase 3.79% (95% CI 1.04–6.55%) and 13.01% (95% CI 3.41–22.61%), respectively. However, PM10 values were negatively correlated with school absenteeism.
Document Type: Research Article
Affiliations: 1: Department of Nutrition and Environmental Sciences and Health Graduate Program, University of Nevada, Reno, Nevada, USA 2: Air Quality Management Division, Washoe County District Health Department, Reno, Nevada, USA 3: Bureau of Health Planning and Statistics, Nevada State Health Division, Carson City, Nevada, USA
Publication date: November 1, 2000