Some characteristics of ozone formation in the urban plume of St. Louis, MO. (journal version)
The O/sub 3/ measurements from the RAMS monitoring network in St. Louis in the upwind and downwind wind flow direction were used to evaluate the impact of the urban plume of St. Louis. Incremental O/sub 3/ formation within the urban plume compared to regional O/sub 3/ background increases both in frequency and intensity from spring into midsummer and declines again in late summer and early fall. Episodic periods with substantial increments of O/sub 3/ formation to the plume over background occur especially during the summer months. Aircraft measurement of O/sub 3/ are used in combination with surface measurements to estimate the transport distance and width of the plume of St. Louis. The significance is evaluated of incremental O/sub 3/ formation in the St. Louis plume on population exposures as well as on fumigations of field crops or forest in rural areas downwind. The results obtained from the St. Louis plume are discussed as they may apply to plumes from other cities, especially in interior regions of the United States.
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (USA). Atmospheric Sciences Research Lab.
- OSTI ID:
- 6872063
- Report Number(s):
- PB-89-120240/XAB; EPA-600/J-88/164
- Country of Publication:
- United States
- Language:
- English
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