Direct estimates of emissions from the megacity of LagosHopkins, J.R., Evans, M.J., Lee, J.D., Lewis, A.C., Marsham, J.H., McQuaid, J.B., Parker, D.J., Stewart, D.J., Reeves, C.E. and Purvis, R.M. (2009) Direct estimates of emissions from the megacity of Lagos. Atmospheric Chemistry and Physics, 9 (21). pp. 8471-8477. ISSN 1680-7316 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.5194/acp-9-8471-2009 Abstract/SummaryWe report here top-down emissions estimates for an African megacity. A boundary layer circumnavigation of Lagos, Nigeria was completed using the FAAM BAe146 aircraft as part of the AMMA project. These observations together with an inferred boundary layer height allow the flux of pollutants to be calculated. Extrapolation gives annual emissions for CO, NOx, and VOCs of 1.44 Tg yr(-1), 0.03 Tg yr(-1) and 0.37 Tg yr(-1) respectively with uncertainties of (+250)/(-60%). These inferred emissions are consistent with bottom-up estimates for other developing megacities and are attributed to the evaporation of fuels, mobile combustion and natural gas emissions.
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