Robust Estimation of Carbon Monoxide Measurements

This paper presents a robust analysis of carbon monoxide (CO) concentration measurements conducted at the Belisario air-quality monitoring station (Quito, Ecuador). For the analysis, the data collected from 1 January 2008 to 31 December 2019 were considered. Additionally, each of the twelve years an...

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Main Authors: Wilmar Hernandez, Alfredo Mendez
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/17/4958
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author Wilmar Hernandez
Alfredo Mendez
author_facet Wilmar Hernandez
Alfredo Mendez
author_sort Wilmar Hernandez
collection DOAJ
description This paper presents a robust analysis of carbon monoxide (CO) concentration measurements conducted at the Belisario air-quality monitoring station (Quito, Ecuador). For the analysis, the data collected from 1 January 2008 to 31 December 2019 were considered. Additionally, each of the twelve years analyzed was considered as a random variable, and robust location and scale estimators were used to estimate the central tendency and dispersion of the data. Furthermore, classic, nonparametric, bootstrap, and robust confidence intervals were used to group the variables into categories. Then, differences between categories were quantified using confidence intervals and it was shown that the trend of CO concentration at the Belisario station in the last twelve years is downward. The latter was proven with the precision provided by both nonparametric and robust statistical methods. The results of the research work robustly proved that the CO concentration at Belisario station in the last twelve years is not considered a health risk, according to the criteria established by the Quito Air Quality Index.
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spelling doaj.art-5f2391c3947b4f9abe253df28dc679ce2023-11-20T12:14:17ZengMDPI AGSensors1424-82202020-09-012017495810.3390/s20174958Robust Estimation of Carbon Monoxide MeasurementsWilmar Hernandez0Alfredo Mendez1Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Las Américas, Quito 170125, EcuadorDepartamento de Matemática Aplicada a las Tecnologías de la Información y las Comunicaciones, ETS de Ingeniería y Sistemas de Telecomunicación, Universidad Politécnica de Madrid, 28031 Madrid, SpainThis paper presents a robust analysis of carbon monoxide (CO) concentration measurements conducted at the Belisario air-quality monitoring station (Quito, Ecuador). For the analysis, the data collected from 1 January 2008 to 31 December 2019 were considered. Additionally, each of the twelve years analyzed was considered as a random variable, and robust location and scale estimators were used to estimate the central tendency and dispersion of the data. Furthermore, classic, nonparametric, bootstrap, and robust confidence intervals were used to group the variables into categories. Then, differences between categories were quantified using confidence intervals and it was shown that the trend of CO concentration at the Belisario station in the last twelve years is downward. The latter was proven with the precision provided by both nonparametric and robust statistical methods. The results of the research work robustly proved that the CO concentration at Belisario station in the last twelve years is not considered a health risk, according to the criteria established by the Quito Air Quality Index.https://www.mdpi.com/1424-8220/20/17/4958carbon monoxidenonparametric statistical inferencerobust central tendency estimationrobust scale estimationnonparametric confidence intervalrobust confidence interval
spellingShingle Wilmar Hernandez
Alfredo Mendez
Robust Estimation of Carbon Monoxide Measurements
Sensors
carbon monoxide
nonparametric statistical inference
robust central tendency estimation
robust scale estimation
nonparametric confidence interval
robust confidence interval
title Robust Estimation of Carbon Monoxide Measurements
title_full Robust Estimation of Carbon Monoxide Measurements
title_fullStr Robust Estimation of Carbon Monoxide Measurements
title_full_unstemmed Robust Estimation of Carbon Monoxide Measurements
title_short Robust Estimation of Carbon Monoxide Measurements
title_sort robust estimation of carbon monoxide measurements
topic carbon monoxide
nonparametric statistical inference
robust central tendency estimation
robust scale estimation
nonparametric confidence interval
robust confidence interval
url https://www.mdpi.com/1424-8220/20/17/4958
work_keys_str_mv AT wilmarhernandez robustestimationofcarbonmonoxidemeasurements
AT alfredomendez robustestimationofcarbonmonoxidemeasurements