GFF samples and 4 blanks, and 2 high volume GFF cascade impactor samples and 1 blank. The electronic system which controlled the various modes of sampling parameters (wind speed, wind direction, rain, etc.) known as ASCAS (Automated System for the Control of Atmospheric Sampling) and the microprocessor which recorded the various sampling events, MIDAS (Meteorological Intergrating Data Aquisition System) were both in operation during the period of sampling. The following meteorological equipment was in operation during the dry season atmospheric sampling period: 1 horizontal and 1 vertical anemometer, a condensation nucleus counter, a Royco (large particle) counter, an automatic rain gauge, and an automatic psychrometer. An ozone monitor and a radon counter were present but not fully operational. From 30 May - 18 June, the major portion of work included maintenance of the atmospheric sampling facility. During this period of time, there were neither electronic equipment nor meteorological sensors in operation. A small amount of air sampling was carried out for Daniel Grosjean of Environmental Research and Technology, Inc. The following samples were collected for the further investigation of particulate carbon: 1 high volume GFF and 1 blank, and cc: Asan 6 low volume 47 mm quartz fiber filters (QFF) and 6 blanks. Duce, Chairman, SEAREX Executive Committee Ray, SEAREX Science Coordinator Chisholm, SEAREX Administrative Coordinator Cayer, SEAREX Coordinator