Armando Retama

Interferences in ambient NO2 concentrations measured in Mexico City using chemiluminescence monitors

Armando Retama, María Quintanar-Chavez, Mariana Ramos-Cerón, Gabriel Elias-Castro et autres

Chemical characterization of submicron particle (PM1) pollution in Mexico City

Armando Retama, Angélica Neria-Hernández, Erik Velasco

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Box-modelling of HOx in Mexico City

Farah Jeba, Bernhard Rappenglück, Tanzina Akther, Morshad Ahmed et autres

This study presents an analysis of hydroxyl (OH) and hydroperoxyl (HO 2 ) radicals collectively referred to as HO x and their role in atmospheric chemistry within the Mexico City Metropolitan Area (MCMA). HO x radicals are paramount to the oxidative capacity …

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Box-modeling of O3 and its sensitivity towards VOCs and NOx in Mexico city under altered emission conditions

Tanzina Akther, B. Rappenglueck, Irfan Karim, Beth S. Nelson et autres

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Ozone pollution: a persistent challenge in large cities like Mexico City, Los Angeles and Beijing

Erik Velasco, Armando Retama, Luisa Tan Molina

Over the past decade or so, many large cities around the world have made little to no progress in lowering ground-level ozone concentrations, despite significant reductions in key precursor pollutants directly emitted into the atmosphere. Ozone comes from complex chemical reactions in …

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Machine-Learning Models for Surface Ozone Forecast in Mexico City

Mateen Ahmad, Bernhard Rappenglück, Olabosipo Osibanjo, Armando Retama

Mexico City frequently experiences high near-surface ozone concentrations, and exposure to elevated near-surface ozone causes harmful effects to the inhabitants and the environment of Mexico City. This necessitates developing models for Mexico City that predict near-surface ozone levels in advance. Such models …

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Ozone pollution: a persistent challenge in large cities like Mexico City, Los Angeles and Beijing

Erik Velasco, Armando Retama, Luisa Tan Molina

Over the past decade or so, many large cities around the world have made little to no progress in lowering ground-level ozone (O3) concentrations, despite significant reductions in key precursor pollutants directly emitted into the atmosphere. Ozone comes from complex chemical reactions …

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List of contributors

Ummugulsum Alyuz-Ozdemir, Zorana Jovanovic Andersen, María de Fátima Andrade, Somayyeh Arghavani et autres

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Application of Three Machine Learning Models for a Severe Ozone Episode in Mexico City

Mateen Ahmad, Bernhard Rappenglück, Olabosipo Osibanjo, Armando Retama

Mexico City due to its specific topography and strong ozone precursors emissions often faces high surface ozone concentrations which negatively impact the dwellers and the environment of Mexico City. This necessitates developing models with the capacity to rank meteorological and air quality …

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Box-Modelling of O3 and its sensitivity towards VOCs and NOx in Mexico City under altered emission conditions

Tanzina Akther, B. Rappenglueck, Beth S. Nelson, Alfred W. Mayhew et autres

Volatile organic compounds (VOCs) data and other inorganic pollutants, in conjunction with surface meteorological data and planetary boundary layer height (PBLH) were collected at an urban site in Mexico City continuously from 6 to 18 March 2016. The zero-dimensional chemical box model …

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Air Quality in Mexico-City: Emissions, Transport, and Chemical Transformation

Bernhard Rappenglück, Tanzina Akther, Mateen Ahmad, Javaria Alam et autres

During the period March 12-17, 2016, Mexico-City experienced its most severe smog episode since 2007. The Metropolitan Index of Air Quality (IMECA) for Mexico-City surpassed the value of 200, indicating an extremely bad situation. Hourly peak values for both, NO2 and O3, …

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Investigating the Complexities of VOC Sources in Mexico City in the Years 2016–2022

Mohammad Jahirul Alam, B. Rappenglueck, Armando Retama, Olivia Rivera-Hernández

Volatile organic compounds (VOCs) are major ingredients of photochemical smog. It is essential to know the spatial and temporal variation of VOC emissions. In this study, we used the Positive Matrix Factorization (PMF) model for VOC source apportionment in Mexico City. We …

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