Air chemistry monitoring at Palmer Station

This research season was a continuation of air chemistry studies at Palmer Station. The air chemistry station that had been installed in Jan.-Feb. 1982 was operated continuously during the winter. The operations continued with a 1983 winter program. Data collected in the 1982 season were analyzed, and some results are described in this article. A table shows the preliminary results of time trend analyses of average weekly data for the Palmer Station record, based upon 31 weeks of data for the halocarbons and N sub(2) O. These data cover the period from the week of May 17 through the week of Dec. 15, 1982. The table also shows the statistical time trends for the CO sub(2) and CH sub(4) weekly average data for the period May 17-July 15, 1982. Ozone concentrations at Palmer ranged from 10 to 30 p.p.b., and the concentrations of Aitken nuclei (CN) were generally within the range of 200-1000 CN/ml.