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Research Scientist


#09-03 CREATE Tower
Singapore 138602

Contact Details

Phone No:



PhD, Civil and Environmental Engineering, Washington State University, USA.
MSs (Hons), Environmental Engineering, National Autonomous University of Mexico, Mexico.
BSc, Mechanical Engineering, National Autonomous University of Mexico, Mexico.

Research Interests

I investigate the origin, dispersion, transformation and impact of atmospheric emissions in urban environments. I am interested in the interactions between the urban surface and the lower regions of the urban boundary layer in terms of mass and energy exchange. The main purpose of my research is to provide a scientific base for devising effective control measures to reduce emissions of pollutants and greenhouse gases, and minimize exposure to harmful species in urban microenvironments.

- Air quality
- Climate change mitigation
- Urban emissions
- Tower-based eddy covariance flux measurements
- Urban carbon sequestration
- Personal exposure
- Urban carbon sequestration

Awards and Honors

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1. Tan SH, Roth M, Velasco E. Particle exposure and inhaled dose during commuting in Singapore. Atmospheric Environment 170, 245-258, 2017
2. Harshan S, Roth M, Velasco E, Demuzere M. Evaluation of an urban land surface scheme in a tropical suburban neighbourhood. Theoretical & Applied Climatology, doi: 10.1007/s00704-017-2221-7, 2017.
3. Liu X, Li XX, Harshan S, Roth M, Velasco E. Evaluation of an urban canopy model in a tropical city: the role of tree evapotranspiration. Environmental Research Letters 12, 094008, 2017.
4. Demuzere M, Harshan S, Järvi L, Roth M, Grimmond CSB, Masson V, Oleson KW, Velasco E, Wouters H. Impact of urban canopy models and external parameters on the modelled urban energy balance in a tropical city. Quarterly Journal of the Royal Meteorological Society 143, 1581-1596, 2017.
5. Velasco E
, Retama A. Ozone's threat hits back Mexico City. Sustainable Cities and Society 31, 260-263, 2017.
6. Roth M, Jansson C, Velasco E. Multi-year energy balance and carbon dioxide fluxes over a residential neighborhood in a tropical city. International Journal of Climatology 37, 2679-2698, 2017.
7. Velasco E, Tan SH. Particles exposure while sitting at bus stops of hot and humid Singapore. Atmospheric Environment 142, 251-263, 2016.
8. Jaimes-Palomera M, Retama A, Elias-Castro G, Neria-Hernandez A, Rivera-Hernandez O, Velasco E. Non-methane hydrocarbons in the atmosphere of Mexico City: results of the 2012 ozone-season campaign. Atmospheric Environment 132, 258-275, 2016.
9. Velasco E, Roth M, Norford L, Molina LT. Does urban vegetation enhance carbon sequestration? Landscape and Urban Planning 148, 99-107, 2016.
10. Montero-Martínez G, Mendoza-Ortega BE, Velasco-Saldaña HE, Garcia-Garcia F, Miranda-Martín del Campo J, Castro-Romero T, Peralta-Rosales O. Chapter 6: Atmopsheric Aerosols, Clouds and Climate Change, in Mexican Report on Climate Change Vol. I Scientific Basis, Models and Modeling, pp 133 – 155.  Edited by C. Gay C, Rueda-Abad JC, Universidad Nacional Autónoma de México, México, 2015. ISBN 978-607-02-7522-7.
11. Espinosa-Fuentes ML, Peralta-Rosales O, Castro-Romero T, Alvarez-Borrego S, Arredondo-Moreno JT, Benard-Romero RA, Martínez-Bravo R, Masera-Cerutti O, Muñoz-Villers LE, Valdespino-Castillo PM, Vargas-Ramos R, Velasco-Saldaña HE. Chapter 7: Biogeochemical Cycles, in Mexican Report on Climate Change Vol. I Scientific Basis, Models and Modeling, pp 157 - 176. Edited by C. Gay C, Rueda-Abad JC, Universidad Nacional Autónoma de México, México, 2015. ISBN 978-607-02-7522-7.
12.Moosavi V, Aschwanden G, Velasco E. Finding candidate locations for aerosol pollution monitoring at street level using a data-driven methodology. Atmospheric Measurement Techniques 8, 3563-3575, 2015.
13. Velasco E, Rastan S. Air quality in Singapore during the 2013 smoke-haze episode over the Strait of Malacca: Lessons learned. Sustainable Cities and Society 17, 122-131, 2015.
14. Velasco E, Perrusquia R, Jiménez E, Hernández F, Camacho P, Rodríguez S, Retama A, Molina LT. Sources and sinks of carbon dioxide in a neighborhood of Mexico City. Atmospheric Environment, 97, 226-238, 2014.
15. Velasco E, Roth M, Tan SH, Quak M, Nabarro S, Norford L. The role of vegetation in the CO2 flux from a tropical urban neighbourhood. Atmospheric Chemistry and Physics 13, 10185-10202, 2013.
16. Velasco E, Ho KJJ, Ziegler AD. Commuter exposure to black carbon, carbon monoxide, and noise in the mass transport khlong boats of Bangkok, Thailand. Transportation Research Part D: Transport and the Environment 21, 62-65, 2013.
17. Vargas R, Yépez EA, Andrade JL, Ángeles G, Arredondo T, Castellanos AE, Delgado J, Garatuza-Payan J, González-del-Castillo E, Oechel W, Sánchez-Azofeifa A, Velasco E, Vivoni ER, Watts C. Progress and opportunities for water and greenhouse gases flux measurements in Mexican ecosystems: the MexFlux network. Atmósfera 26(3), 325-336, 2013.
18. Velasco E and Roth M. Review of Singapore's air quality and greenhouse gas emissions: current situation and opportunities. Journal of the Air & Waste Management Association 62(6), 625-641, 2012.
19. Zalakeviciute R, Alexander ML, Allwine E, Jimenez JL, Jobson BT, Molina LT, Nemitz E, Pressley SN, VanReken T, Ulbrich IM, Velasco E, Lamb BK. Chemically-resolved aerosol eddy covariance flux measurements in urban Mexico City during MILAGRO 2006. Atmospheric Chemistry and Physics 12, 7809-7823, 2012.
20. Velasco E, Pressley S, Allwine E, Grivicke R, Molina LT, Lamb B. Energy balance in urban Mexico City: observation and parameterization during the MILAGRO/MCMA-2006 field campaign. Theoretical and Applied Climatology 103, 501-517, 2011.
21. Velasco E and Roth M. Cities as net sources of CO2: Review of atmospheric CO2 exchange in urban environments measured by eddy covariance technique. Geography Compass 4(9), 1238-1259, 2010.
22. Jobson BT, Volkamer RA, Velasco E, Allwine G, Westberg H, Lamb B, Alexander ML, Berkowitz CM, Molina LT. Comparison of aromatic hydrocarbon measurements made by PTR-MS, DOAS and GC-FID in Mexico City during the MCMA-2003 field experiment. Atmospheric Chemistry and Physics 10, 1981-2005, 2010.
23. Velasco E, Pressley S, Grivicke R, Allwine E, Coons T, Foster W, Jobson T, Westberg H, Ramos R, Hernández F, Molina LT, Lamb B. Eddy covariance flux measurements of pollutant gases in urban Mexico City. Atmospheric Chemistry and Physics 9, 7325-7342, 2009.
24. Velasco E, Márquez C, Bueno E, Bernabé RM, Sánchez A, Fentanes O, Wöhrnschimmel H, Cárdenas B, Kamilla A, Wakamatsu S, Molina LT. Vertical distribution of ozone and VOCs in the low boundary layer of Mexico City. Atmospheric Chemistry and Physics 8, 3061-3079, 2008.
25. Velasco E, Lamb B, Westberg H, Allwine E, Sosa G, Arriaga-Colina JL, Jobson BT, Alexander M,  Prazeller P, Knighton WB, Rogers TM, Grutter M, Herndon SC, Kolb CE, Zavala M, de Foy B, Volkamer R, Molina LT, Molina MJ. Distributions, magnitudes and diurnal pattern of volatile organic compounds in the Valley of Mexico during the MCMA-2002 & MCMA-2003 field campaigns. Atmospheric Chemistry and Physics 7, 329-353, 2007.
26. Shirley TR, Brune WH, Ren X, Mao J, Lesher R, Cardenas B, Volkamer R, Molina LT, Molina MJ, Lamb B, Velasco E, Jobson T, Alexander M. Atmospheric oxidation in the Mexico City Metropoiltan Area (MCMA) during April 2003Atmospheric Chemistry and Physics 6, 2753-2765, 2006.
27. Velasco E, Lamb B, Pressley S, Allwine E, Westberg H, Jobson BT, Alexander M, Prazeller P, Molina L, Molina M. Flux measurements of volatile organic compounds from an urban landscape. Geophysical Research Letters 32(20), L20802, doi: 10.1029/2005GL023356, 2005.
28. Velasco E, Pressley S, Allwine E, Westberg H, Lamb B. Measurements of CO2 fluxes from the Mexico City urban landscape. Atmospheric Environment 39(38), 7433-7446, 2005.
29. Velasco E, Siegmann P, Siegmann HC. Exploratory study of particle-bound polycyclic aromatic hydrocarbons in different environments of Mexico City. Atmospheric Environment 38(29), 4957-4968, 2004.
30. Velasco E
and Bernabe RM. Biogenic Emissions: Emissions of volatile organic compounds no methane from vegetation and nitric oxide from soil (in Spanish). National Institute of Ecology of Mexico. ISBN 968-817-699-0, SEMARNAT-INE, Mexico, DF, 2004. 
31. Velasco E. Estimates for biogenic non-methane hydrocarbons and nitric oxide emissions in the Valley of Mexico Atmospheric Environment 37(5), 625-637, 2003.