doi: 10.18178/ijesd.2021.12.7.1341
Behavior of the Average Concentrations As Well As Their PM<sub>10</sub> and PM<sub>2.5</sub> Variability in the Metropolitan Area of Lima, Peru: Case Study February and July 2016
Warren Reátegui-Romero1
,
Walter F. Zaldivar-Alvarez1 ,
Sergio Pacsi-Valdivia2 ,
Odón R. Sánchez-Ccoyllo3 ,
Alberto E. García Rivero4 ,
Aldo Moya–Alvarez5
- 1the Faculty of Chemical Engineering and Textile (FIQT), National University of Engineering (UNI), Peru
- 2the National Agrarian University La Molina (UNALM), Lima, Peru
- 3the National Technological University of South Lima (UNTELS), Lima, Peru
- 4the School of Geography, Universidad Nacional Mayor de San Marcos, Perú
- 5the Geophysical Institute of Peru (IGP), Calle Badajoz 169 Urb. Mayorazgo, Peru
Abstract
This research focused on analyzing the behavior of the hourly average concentrations of PM<sub>10</sub> and PM<sub>2.5</sub> in relation to vehicular traffic, as well as the effect of relative humidity on these concentrations. Measurements of hourly particulate matter concentrations were recorded by the National Meteorology and Hydrology Service of Peru (SENAMHI) at five surface air quality stations. The profiles of PM<sub>10</sub> concentrations are related to traffic behavior, showing high levels of concentrations at peak hours, while the PM<sub>2.5</sub> profiles are flatter and better related to traffic in February (summer). The decrease in relative humidity between 80 to 65% in the mornings has a greater effect on the increase in PM<sub>10</sub> and PM<sub>2.5</sub> concentrations in February than in July (winter), and the increase in relative humidity between 65 to 80 % in the afternoon, it has a greater effect on the decrease in the concentration of PM<sub>2.5</sub> in February than in July. The air quality in the north (PPD and CRB stations) and east (SJL station) of the Metropolitan Area of Lima (MAL) are the most polluted. The factors that relate PM<sub>10</sub> concentrations with the Peruvian standard in February at these stations were 2.79, 1.78 and 1.26, and in July 2.74, 1.28 and 1.36 respectively. The highest and lowest variability of PM<sub>10</sub> and PM<sub>2.5</sub> in February and July occurred in the northern area (PPD and SMP stations).
Keywords
- Air quality
- air pollution
- particulate matter
- PM 10
- PM 2.5
- Lima
- Peru
How to Cite
Warren Reátegui-Romero, Walter F. Zaldivar-Alvarez, Sergio Pacsi-Valdivia, Odón R. Sánchez-Ccoyllo, Alberto E. García Rivero, and Aldo Moya–Alvarez, "Behavior of the Average Concentrations As Well As Their PM<sub>10</sub> and PM<sub>2.5</sub> Variability in the Metropolitan Area of Lima, Peru: Case Study February and July 2016," International Journal of Environmental Science and Development, vol. 12, no. 7, pp. 204-213, 2021. https://doi.org/10.18178/ijesd.2021.12.7.1341
Copyright & License
Copyright © 2021 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).