DOC; Mountain Administrative Support Center; Acquisition Management Division; 325 Broadway MC3; Boulder, CO

A -- ATMOSPHERIC MEASUREMENTS SOL NRMGB000900079MB POC Michelle Bernal, Purchasing Agent, (303) 497-3983 or FAX (303) 497-3163 E-MAIL: NOAA; MASC Acquisition Management, Michelle.A.Bernal@noaa.gov. The U.S. Department of Commerce, National Oceanic & Atmospheric Administration (NOAA), Aeronomy Laboratory, intends to award a sole source contract to Ohio University to characterize the contribution of C2-C8 non-methane hydrocarbons (NMHCs) to local and regional oxidant chemistry in the Nashville area as part of the Southern Oxidants Study (SOS) Field Campaign. Estimates of radical concentrations are to be made using measurements of C2-C8 non-methane hydrocarbons combined with appropriate kinetic data. These measurements are to be made by direct injection into a gas chromatograph with flame ionization detection using cryogenic concentration at the Cornelia Fort Airport sampling site. Atmospheric samples (averaged for 10-15 minutes) will be collected at 10-meters above the surface for a period of six weeks. This period will include extensive intercomparisons with other researchers operating similar instrumentation. Samples will be collected, once per hour, during both daytime and nighttime depending upon the requirements of the experiment. Preliminary data are to be made available within 48 hours of sample collection. Data interpretation will include analysis of (1) incremental and HO reactivity to determine potential for ozone production; (2) NMHC ratios to estimate photochemical age and radical concentrations; (3) ozone levels and alkene concentration trends to elucidate the role of ozone and nitrate chemistry; (4) trends in levels of NMHCs and other trace gases to estimate the contributions of different source types (forest, mobile sources, etc.). The results of this effort will be published in the peer-reviewed literature within two years of completion. This procurement is being conducted per FAR Part 13, Simplified Acquisition Procedures. This synopsis is issued for information only. No competitive solicitation is planned. No award will be made on the basis of requests in response to this notice. Information submitted in response to this notice will be used solely to determine whether or not use of competitive procedures to fulfill this requirement would be in the Government's best interest and must address qualifications pertinent to this requirement. Terms and Conditions and agency level protest procedures can be found on web site http: netsite.esa.doc.gov/oam. Hard copy in full text available from office address and phone number listed in notice. Anticipated Award date will be February 19, 1999. Posted 02/03/99 (D-SN294038). (0034)

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