NOCTURNAL INVERSION AND ITS EFFECT ON THE DISPERSION OF CARBON-MONOXIDE AT GROUND-LEVEL IN HAMPTON, VIRGINIA

Absolute maxima in surface-level carbon monoxide exceeded the primary 8-h standard of 9 ppm several times between the hours of 1900 and 0700 local tone for the fall and winter of 1976 in Hampton, Virginia. A field measurement program showed that reduced mixing volumes due to nocturnal radiation inversions were probably responsible for this build up of carbon monoxide despite night-time reductions in the principal carbon monoxide source, vehicular traffic. © 1979.