Analysis of the Ambient VOC Data Collected in the Southern California Air Quality Study

摘要

A detailed analysis of ambient hydrocarbon and carbonyl data collected in the Southern California Air Quality Study (SCAQS) was undertaken to develop an improved understanding of nonmethane organic compounds (NMOC) in California's South Coast Air Basin (SoCAB). The SCAQS data set, which was the most extensive ever collected in the SoCAB, was used to: (1) Characterize the spatial and temporal patterns of total NMOC concentrations and NMOC/NOx ratios; (2) Characterize the spatial and temporal patterns of individual organic compounds; (3) Assess the consistency between ambient and emissions inventory NMOC; and (4) Assess the extent of NMOC oxidation and carbonyl compound formation occurring in the atmosphere.