Author(s)

R.C. Ramon, H.M. Liljestrand & D.T. Allen

Abstract

Groundlevel measurements of ozone, nitrogen oxides, and speciated hydrocarbons were performed at three sites within 80 km of Austin Texas, to the North, South, and East of Austin Texas in the summer-fall of 1996. Each of the suburban sites showed higher ozone concentrations than at the central Austin urban monitoring site. Emission inventories and urban airshed modeling indicated oxidant formation is limited by nitrogen oxides concentrations rather than biogenic or anthropogenic reactive hydrocarbons. Upwind transport of nitrogen oxides dominates over local emissions at the outlying suburban and rural sites, making attainment of ambient ozone air quality standards at these sites a regional problem. 1 Introduction Ambient air quality monitoring in Te

Keywords