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Artículo

Ultraviolet Radiation Environment of a Tropical Megacity in Transition: Mexico City 2000-2019

Ipiña Hernandez, AdrianaIcon ; López Padilla, Gamaliel; Retama, Armando; Piacentini, Ruben Dario NarcisoIcon ; Madronich, Sasha
Fecha de publicación: 08/2021
Editorial: American Chemical Society
Revista: Environmental Science & Technology
ISSN: 0013-936X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Meteorología y Ciencias Atmosféricas

Resumen

Tropical regions experience naturally high levels of UV radiation, but urban pollution can reduce these levels substantially. We analyzed 20 years of measurements of the UV index (UVI) at several ground-level locations in the Mexico City Metropolitan Area and compared these data with the UVI values derived from the satellite observations of ozone and clouds (but not local pollution). The ground-based measurements were systematically lower than the satellite-based estimates by ca. 40% in 2000 and 25% in 2019. Calculations with a radiative transfer model using observed concentrations of air pollutants explained well the difference between satellite and ground-based UVI and showed specific contributions from aerosols, O3, NO2, and SO2 in decreasing order of importance. Such large changes in UV radiation between 2000 and 2019 have important implications ranging from human health (skin cancer and cataract induction) to air pollution control (photochemical smog formation).
Palabras clave: AIR POLLUTION , MEXICO CITY , URBAN POLLUTION , UV INDEX , UV RADIATION
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/183027
DOI: http://dx.doi.org/10.1021/acs.est.0c08515
URL: https://pubs.acs.org/doi/10.1021/acs.est.0c08515
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Articulos(IFIR)
Articulos de INST.DE FISICA DE ROSARIO (I)
Citación
Ipiña Hernandez, Adriana; López Padilla, Gamaliel; Retama, Armando; Piacentini, Ruben Dario Narciso; Madronich, Sasha; Ultraviolet Radiation Environment of a Tropical Megacity in Transition: Mexico City 2000-2019; American Chemical Society; Environmental Science & Technology; 55; 16; 8-2021; 10946-10956
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