• ozone
  • Mesocosms taken from a lowland raised bog in northern England were exposed in open-top chambers for 2 years to ambient air or ambient air plus ozone elevated for 8 h day −1 by an average of 49 ppb in summer and 10 ppb in winter. (wiley.com)
  • AMHERST, Mass. - A new study assessing the influence of species diversity of canopy trees on the amount of ozone precursors a forest emits suggests that atmospheric chemistry models in use now may underestimate the importance of tree species mix and size to ozone pollution, says lead author Alexander Bryan, a postdoctoral fellow in the Northeast Climate Science Center at the University of Massachusetts Amherst. (umass.edu)
  • As Bryan explains, "Ozone pollution models do really well at predicting air quality in urban areas because that's where the problem started. (umass.edu)
  • Urban
  • Urban air pollution can trigger asthma exacerbations, but the effects of long-term exposure to traffic-related air pollution on lung function, or onset of airway disease and allergic sensitization in children is less clear. (bmj.com)
  • Our atmospheric chemistry models have all been tested and optimized for urban air quality studies. (umass.edu)