Author(s)

K. Weston, D. Fowled & R. Smith

Abstract

Rural exposure to ozone over the UK K. Weston", D. Fowled, R. Smith& "Department of Meteorology, University of ^Institute of Terrestrial Ecology, Penicuik, ABSTRACT Process-based analyses of data available from the U.K. network of ozone monitoring sites have been used to develop algorithms which quantify the altitude-dependence of various ozone statistics. These have allowed detailed maps of rural ozone exposure to be constructed at the 1km x 1km scale. The analyses are based on data from rural sites only, so the depletion of ozone in urban areas by nitric oxide is not included. Over the U.K. there is a general decrease in exposure from south-east to north-west, but with a marked altitude dependence of ozone statistics; for example, the number of hours greater than GOppbv for ground above 250m is double that for neighbouring ground near sea-level. INTRODUCTION Ozone concentrations at the Earth's surface are monitored at relatively few locations and yet concentrations often

Keywords