title: Nitrogen dioxide exposures inside ice skating rinks.
abstract: OBJECTIVE
  The common operation of fuel-powered resurfacing equipment in enclosed ice skating rinks has the potential for producing high concentrations of carbon monoxide and nitrogen dioxide. Exposures to these gaseous combustion products may adversely affect the health of those inside the rink. Little information is available on pollutant concentrations under normal operating conditions.
  
  
  METHODS
  One-week average nitrogen dioxide concentrations in 70 northeastern US rinks were measured with passive samplers during normal winter season conditions.
  
  
  RESULTS
  The median nitrogen dioxide level inside rinks was 180 ppb, more than 10 times higher than the median outdoor concentration. One-week average nitrogen dioxide concentrations above 1000 ppb were measured in 10% of the rinks.
  
  
  CONCLUSIONS
  Considering that short-term peak concentrations were likely to have reached two to five times the measured 1-week averages, our results suggest that nitrogen dioxide levels were well above short-term air quality guidelines and constitute a public health concern of considerable magnitude.
authors.affiliation: Department of Medicine, University of British Columbia, Vancouver, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Brauer
authors.forename: J D
authors.initials: JD
authors.lastname: Spengler
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000592:standards; D016902:Air Pollution, Indoor / Q000032:analysis; D006801:Humans; D009585:Nitrogen Dioxide / Q000032:analysis*; D012861:Skating; D014481:United States
chemical_list: D000393:Air Pollutants; D009585:Nitrogen Dioxide