SEDL / STP / STP653-EB / STP36604S

Impact of Stratospheric Ozone on Tropospheric Concentrations

Reiter, ER
Professor of Atmospheric Science, Colorado State University, Fort Collins, Colo.

Pages: 14    Published: Jan 1978

Download this paper for $25 PDF (236K)          View License Agreement
Abstract

Estimates of the natural background levels of stratospheric ozone (O³) in the lower troposphere are made using both stratospheric mass-balance calculations and radioactive fallout data. There is excellent agreement between both approaches, suggesting that there is a natural background of O³ of approximately 20 percent of the federal 1-h max value (the concentration not to be exceeded for longer than 1 h) or roughly 30 μ/g. The maximum stratospheric O³ concentrations in the lower troposphere on occasion can approach, and even exceed, this federal guideline value.