Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, Philippines

Urban air quality is increasingly being studied as a fraction of the world’s population is living in megacities. In this study, particulate matter (PM) along Taft Avenue, Manila, the Philippines, is investigated in terms of its ability to induce genetic damage in human peripheral blood lymphocytes (...

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Main Authors: Ma. Katrina Gale Estonilo, Joedith Anne Cazeñas, Carlos Josef Villafuerte, Custer Deocaris, Gloriamaris Caraos, Gerardo Jose Robles, Maria Cecilia Galvez, Celia Asaad, Edgar Vallar
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Atmosphere
Subjects:
Online Access:https://www.mdpi.com/2073-4433/13/1/6
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author Ma. Katrina Gale Estonilo
Joedith Anne Cazeñas
Carlos Josef Villafuerte
Custer Deocaris
Gloriamaris Caraos
Gerardo Jose Robles
Maria Cecilia Galvez
Celia Asaad
Edgar Vallar
author_facet Ma. Katrina Gale Estonilo
Joedith Anne Cazeñas
Carlos Josef Villafuerte
Custer Deocaris
Gloriamaris Caraos
Gerardo Jose Robles
Maria Cecilia Galvez
Celia Asaad
Edgar Vallar
author_sort Ma. Katrina Gale Estonilo
collection DOAJ
description Urban air quality is increasingly being studied as a fraction of the world’s population is living in megacities. In this study, particulate matter (PM) along Taft Avenue, Manila, the Philippines, is investigated in terms of its ability to induce genetic damage in human peripheral blood lymphocytes (PBLs). Size-segregated roadside air samples were obtained from 2015–2017 near a university gate and analyzed using in vitro micronucleus (MN) and cytokinesis-block proliferation tests. While cellular proliferation was unaffected by 0–0.1 kg/m<sup>3</sup> of PM<sub>1.0</sub> and PM<sub>2.5</sub>, PBL cells treated with PM<sub>2.5</sub> displayed a significantly higher micronucleus count (<i>p</i> = 0.03) compared to the cells treated with PM<sub>1.0</sub>. Atomic absorption spectroscopy revealed greater amounts of Cd, Ca, Pb, K, Na, and Zn in PM<sub>2.5</sub> compared to PM<sub>1.0</sub>. The results indicate that the differences in composition of the two size fractions of air particulates are associated with their genotoxicities.
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spelling doaj.art-3b28f25dba094c8ba4f03011ef6c486d2023-11-23T12:55:34ZengMDPI AGAtmosphere2073-44332021-12-01131610.3390/atmos13010006Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, PhilippinesMa. Katrina Gale Estonilo0Joedith Anne Cazeñas1Carlos Josef Villafuerte2Custer Deocaris3Gloriamaris Caraos4Gerardo Jose Robles5Maria Cecilia Galvez6Celia Asaad7Edgar Vallar8Environment and Remote Sensing Research (EARTH) Laboratory, Department of Physics, De La Salle University, Manila 0922, PhilippinesEnvironment and Remote Sensing Research (EARTH) Laboratory, Department of Physics, De La Salle University, Manila 0922, PhilippinesEnvironment and Remote Sensing Research (EARTH) Laboratory, Department of Physics, De La Salle University, Manila 0922, PhilippinesBiomedical Research Unit, Atomic Research Division, Philippine Nuclear Research Institute, Department of Science and Technology, Diliman, Quezon City 1101, PhilippinesBiomedical Research Unit, Atomic Research Division, Philippine Nuclear Research Institute, Department of Science and Technology, Diliman, Quezon City 1101, PhilippinesBiomedical Research Unit, Atomic Research Division, Philippine Nuclear Research Institute, Department of Science and Technology, Diliman, Quezon City 1101, PhilippinesEnvironment and Remote Sensing Research (EARTH) Laboratory, Department of Physics, De La Salle University, Manila 0922, PhilippinesBiomedical Research Unit, Atomic Research Division, Philippine Nuclear Research Institute, Department of Science and Technology, Diliman, Quezon City 1101, PhilippinesEnvironment and Remote Sensing Research (EARTH) Laboratory, Department of Physics, De La Salle University, Manila 0922, PhilippinesUrban air quality is increasingly being studied as a fraction of the world’s population is living in megacities. In this study, particulate matter (PM) along Taft Avenue, Manila, the Philippines, is investigated in terms of its ability to induce genetic damage in human peripheral blood lymphocytes (PBLs). Size-segregated roadside air samples were obtained from 2015–2017 near a university gate and analyzed using in vitro micronucleus (MN) and cytokinesis-block proliferation tests. While cellular proliferation was unaffected by 0–0.1 kg/m<sup>3</sup> of PM<sub>1.0</sub> and PM<sub>2.5</sub>, PBL cells treated with PM<sub>2.5</sub> displayed a significantly higher micronucleus count (<i>p</i> = 0.03) compared to the cells treated with PM<sub>1.0</sub>. Atomic absorption spectroscopy revealed greater amounts of Cd, Ca, Pb, K, Na, and Zn in PM<sub>2.5</sub> compared to PM<sub>1.0</sub>. The results indicate that the differences in composition of the two size fractions of air particulates are associated with their genotoxicities.https://www.mdpi.com/2073-4433/13/1/6particulate mattercytokinesis-block proliferation indexair pollutionatomic absorption spectroscopyin vitro micronucleus test
spellingShingle Ma. Katrina Gale Estonilo
Joedith Anne Cazeñas
Carlos Josef Villafuerte
Custer Deocaris
Gloriamaris Caraos
Gerardo Jose Robles
Maria Cecilia Galvez
Celia Asaad
Edgar Vallar
Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, Philippines
Atmosphere
particulate matter
cytokinesis-block proliferation index
air pollution
atomic absorption spectroscopy
in vitro micronucleus test
title Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, Philippines
title_full Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, Philippines
title_fullStr Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, Philippines
title_full_unstemmed Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, Philippines
title_short Genotoxicity of PM<sub>2.5</sub> and PM<sub>1.0</sub> Particulates on Human Peripheral Blood Lymphocytes in Manila, Philippines
title_sort genotoxicity of pm sub 2 5 sub and pm sub 1 0 sub particulates on human peripheral blood lymphocytes in manila philippines
topic particulate matter
cytokinesis-block proliferation index
air pollution
atomic absorption spectroscopy
in vitro micronucleus test
url https://www.mdpi.com/2073-4433/13/1/6
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