Format

Send to

Choose Destination
Environ Monit Assess. 2019 Jun 28;191(Suppl 2):269. doi: 10.1007/s10661-019-7420-5.

A national burden assessment of estimated pediatric asthma emergency department visits that may be attributed to elevated ozone levels associated with the presence of smoke.

Author information

1
Colorado School of Public Health, Colorado State University, Fort Collins, CO, USA.
2
Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA.
3
Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO, USA.
4
Colorado School of Public Health, Colorado State University, Fort Collins, CO, USA. sheryl.magzamen@colostate.edu.
5
Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA. sheryl.magzamen@colostate.edu.

Abstract

Asthma is the most common pediatric disease in the USA. It has been consistently demonstrated that asthma symptoms are exacerbated by exposure to ozone. Ozone (O3) is a secondary pollutant produced when volatile organic compounds (VOCs) are oxidized in the atmosphere in the presence of nitrogen oxides (NOx). At ground level, elevated ozone is typically formed as a result of human activities. However, wildfires represent an additional source of ozone precursors. Recent evidence suggests that smoke can increase ozone concentrations. We estimated the number of excess asthma-related emergency department (ED) visits in children with asthma that may be attributed to elevated ozone associated with smoke (EOAS) in the USA. We conducted a quantitative burden assessment (BA) using a Monte Carlo approach to estimate the median number of excess pediatric asthma ED visits that may be attributed to EOAS among children with asthma in the continental USA between 2005 and 2014, as well as 95% confidence bounds (95% CB). We estimated that a median of 2403 (95% CB 235-5382) pediatric asthma ED visits could be attributed to EOAS exposure between 2005 and 2014 in the continental USA. Furthermore, the impact of EOAS on estimated asthma ED visits was greatest in the eastern half of the continental USA. We found a significant increase in pediatric asthma ED visits that may be attributed to exposure to EOAS. EOAS may have a measurable negative impact on children with asthma in the USA.

KEYWORDS:

Burden assessment; Hazard mapping system; Ozone; Pediatric asthma; Wildfires

PMID:
31254073
DOI:
10.1007/s10661-019-7420-5

Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center