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Port of Oakland Drayage Truck Emissions

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Published on Mar 18, 2011

The video is taken from the front seat of a research van and shows trucks passing below. Overlaid on the video are real-time and synchronized measurements of four pollutants in truck exhaust. The red line shows CO2 (carbon dioxide) concentrations, the green shows NOx (nitrogen oxides), the black shows BC (black carbon), and the blue shows PM (particulate matter). There are four discernable peaks in CO2 that correspond to the passage of four trucks. Looking at the green line, you can see that measureable amounts of NOx were emitted from all four of these trucks. In contrast, BC and PM (black and blue lines) were emitted in clearly measurable amounts from only the first two trucks. The third and forth trucks had very low emissions of particulate matter.

http://pubs.acs.org/doi/abs/10.1021/e...

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