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(accessed Jul 7 2023)."},{"key":"ref39\/cit39","unstructured":"https:\/\/ww2.arb.ca.gov\/criteria-pollutant-emission-inventory-data (accessed Jul 24, 2023)."},{"key":"ref40\/cit40","doi-asserted-by":"publisher","DOI":"10.1080\/10473289.2001.10464248"},{"key":"ref41\/cit41","doi-asserted-by":"publisher","DOI":"10.1016\/j.scitotenv.2019.04.185"},{"key":"ref42\/cit42","doi-asserted-by":"publisher","DOI":"10.1016\/j.atmosenv.2019.117212"},{"key":"ref43\/cit43","doi-asserted-by":"publisher","DOI":"10.1080\/10473289.2011.595981"},{"key":"ref44\/cit44","doi-asserted-by":"publisher","DOI":"10.5194\/acp-14-12871-2014"},{"key":"ref45\/cit45","doi-asserted-by":"publisher","DOI":"10.1016\/j.apr.2016.07.011"},{"key":"ref46\/cit46","doi-asserted-by":"publisher","DOI":"10.3390\/atmos12091125"},{"key":"ref47\/cit47","unstructured":"Utah Department of Transportation (UDOT).\n                      Performance\nMeasurement System (PeMS)\n                      , https:\/\/udot.iteris-pems.com\/. (accessed 18 Jul 2023)."},{"key":"ref48\/cit48","unstructured":"California Department of\nTransportation (CalTrans).\n                      Performance Measurement\nSystem (PeMS)\n                      , https:\/\/pems.dot.ca.gov\/. 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