Undergraduate Honors Theses

Thesis Defended

Fall 2018

Document Type

Thesis

Type of Thesis

Departmental Honors

Department

Economics

First Advisor

Daniel Kaffine, PhD, Department of Economics

Second Advisor

Terra McKinnish, PhD, Department of Economics

Third Advisor

Matthew Burgess, PhD, Cooperative Institute for Research in Environmental Sciences

Abstract

Abstract

This paper works to predict the marginal magnitude of mitigated nitrogen oxides pollution in the wake of the Transport for London’s electrified 507 and 521 bus routes. The study examines London Air’s atmospheric inventory across roadside and urban background monitoring sites throughout central London. The paper models panel data with individual and time fixed effects to theoretically predict the degree of an unambiguous decrease in public transport air pollution neighboring the Waterloo and London Bridge. Through difference in difference design, the paper uses a variety of hourly air monitoring controls and time fixed effects between January 2015 and September 2018 to analyze and fix average changes in local trends of nitrogen oxides, with respect to the rollout dates of the 26 electric buses onto route 521, where average hourly NO2 and NOx concentrations during hours of operation were reduced during the treatment period. The study concludes that an electric bus fleet conversion, weather observations, and hourly parameters help to explain local, urban reductions in noxious pollution levels, but in this case, the mitigative magnitude remains uncertain. The paper supports public authorities to enact numerous, comprehensive enforcements on traffic-level sources of noxious pollution, each yielding an effect, to perform cumulatively to create important environmental and public benefits.

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