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Characterizing Activity and Emissions of In-Use Commercial Harbor Craft

Abstract

For this study, CARB entered into a contract with the University of California, Berkeley (UCB), who subcontracted with the University of California, Riverside (UCR), and the University of Southern California (USC) to characterize CHC spatiotemporal activity and in-use CHC emissions. This work provided CARB staff with real-world emission rates of DPM and NOx using three measurement approaches. Laboratory-grade emissions measurements were performed using PEMS from a few vessels to evaluate emissions during in-use operation in relation to emissions reported during certification.