Stephen. Springston
Brookhaven National Laboratory
Bldg. 815E, ECD
Upton, NY 11973-5000
631-344-2887
fax 631-344-2887
srs@bnl.gov

Specialized measurement capabilities are essential to achieving the scientific objectives of field studies planned by the Atmospheric Chemistry Program (ACP). This work provides instruments for ACP activities in which Brookhaven National Laboratory participates scientifically. The low concentrations of trace chemical species and the unique conditions of aircraft-based sampling require specialized instruments to perform the measurements. Research-grade analyzers are currently fielded for ozone, nitrogen oxides (NO, NO₂ and NO_y), carbon monoxide, sulfur dioxide and other species. Additional advanced instrumentation is necessary to meet the expanded goals of the ACP. A new instrument for the rapid and sensitive determination of carbon monoxide has produced some initial results. Work is taking place to develop two complementary techniques for the real-time measurement of gaseous ammonia, a fast ozone analyzer and a new approach for measuring the total polyaromatic hydrocarbons (PAH) adsorbed on aerosols. An important component of this work is the support required to operate these instruments and produce an integrated data set for each study.

Some further information can be found in the viewgraphs from a presentation at the Atmospheric Sciences Program Annual Meeting held in February 2001. Updates can be found in the viewgraphs from a presentation at the Atmospheric Sciences Program Annual Meeting held in March 2002.