“…Hering (HH1) reported on an intercomparison of sampling methods for carbonaceous aerosols in ambient air. Hollaender et al(HH2) conducted a field intercomparison of various particulate samples in four different locations in West Berlin and the Netherlands.Mathai et al (HH3) reported on an intercomparison of ambient aerosol samplers used in western U.S. visibility and air quality studies.…”