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Mylonaki M, Gini M, Georgopoulou M, Pilou M, Chalvatzaki E, Solomos S, Diapouli E, Giannakaki E, Lazaridis M, Pandis SN, Nenes A, Eleftheriadis K, Papayannis A. Wildfire and African dust aerosol oxidative potential, exposure and dose in the human respiratory tract. Sci Total Environ 2024; 913:169683. [PMID: 38160832 DOI: 10.1016/j.scitotenv.2023.169683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 12/11/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Exposure to wildfire smoke and dust can severely affect air quality and health. Although particulate matter (PM) levels and exposure are well-established metrics linking to health outcomes, they do not consider differences in particle toxicity or deposition location in the respiratory tract (RT). Usage of the oxidative potential (OP) exposure may further shape our understanding on how different pollution events impact health. Towards this goal, we estimate the aerosol deposition rates, OP and resulting OP deposition rates in the RT for a typical adult Caucasian male residing in Athens, Greece. We focus on a period when African dust (1-3 of August 2021) and severe wildfires at the northern part of the Attika peninsula and the Evia island, Greece (4-18 of August 2021) affected air quality in Athens. During these periods, the aerosol levels increased twofold leading to exceedances of the World Health Organization (WHO) [15(5) μg m-3] PM10 (PM2.5) air quality standard by almost 100 %. We show that the OP exposure is 1.5-times larger during the wildfire smoke events than during the dust intrusion, even if the latter was present in higher mass loads - because wildfire smoke has a higher specific OP than dust. This result carries two important implications: OP exposure should be synergistically used with other metrics - such as PM levels - to efficiently link aerosol exposure with the resulting health effects, and, certain sources of air pollution (in our case, exposure to biomass burning smoke) may need to be preferentially controlled, whenever possible, owing to their disproportionate contribution to OP exposure and ability to penetrate deeper into the human RT.
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Affiliation(s)
- Maria Mylonaki
- Laser Remote Sensing Unit, Department of Physics, National and Technical University of Athens, Zografou 15780, Greece; Meteorological Institute, Ludwig-Maximilians-Universität München, Munich 80333, Germany
| | - Maria Gini
- ENRACT, Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, N.C.S.R. "Demokritos", Ag. Paraskevi 15310, Greece
| | - Maria Georgopoulou
- Center for the Study of Air Quality and Climate Change, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras 26504, Greece
| | - Marika Pilou
- Thermal Hydraulics and Multiphase Flow Laboratory, INRaSTES, NCSR "Demokritos", Agia Paraskevi 15310, Greece
| | - Eleftheria Chalvatzaki
- School of Chemical and Environmental Engineering, Technical University of Crete, Chania 73100, Greece
| | - Stavros Solomos
- Research Centre for Atmospheric Physics and Climatology, Academy of Athens, Athens 10679, Greece
| | - Evangelia Diapouli
- ENRACT, Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, N.C.S.R. "Demokritos", Ag. Paraskevi 15310, Greece
| | - Elina Giannakaki
- Department of Environmental Physics and Meteorology, Faculty of Physics, National and Kapodistrian University of Athens, Athens, Greece
| | - Mihalis Lazaridis
- School of Chemical and Environmental Engineering, Technical University of Crete, Chania 73100, Greece
| | - Spyros N Pandis
- Center for the Study of Air Quality and Climate Change, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras 26504, Greece; Department of Chemical Engineering, University of Patras, Patras 26504, Greece
| | - Athanasios Nenes
- Center for the Study of Air Quality and Climate Change, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras 26504, Greece; Laboratory of Atmospheric Processes and their Impacts, Ecole Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland.
| | - Konstantinos Eleftheriadis
- ENRACT, Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, N.C.S.R. "Demokritos", Ag. Paraskevi 15310, Greece
| | - Alexandros Papayannis
- Laser Remote Sensing Unit, Department of Physics, National and Technical University of Athens, Zografou 15780, Greece; Laboratory of Atmospheric Processes and their Impacts, Ecole Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland.
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Xing Q, Zhang L, Liu H, Zhu C, Yao M. Exhaled VOC Biomarkers from Rats Injected with PMs from Thirty-One Major Cities in China. Environ Sci Technol 2023; 57:20510-20520. [PMID: 38039547 DOI: 10.1021/acs.est.3c06074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Particulate matter (PMs) of different origins can cause diverse health effects. Here, a homemade box was used to facilitate real-time measurements of breath-borne volatile organic compounds (VOCs) by gas chromatography-ion mobility spectrometry. We have tracked exhaled VOC changes in 228 Wistar rats that were injected with water-soluble PM suspension filtrates (after 0.45 μm) from 31 China cities for 1 h to up to 1-6 days during the experiments. Rats exposed to the filtrates exhibited significant changes in breath-borne VOCs within hours, featuring dynamic fluctuations in the levels of acetone, butan-2-one, heptan-2-one-M, acetic acid-M, and ethanol. Subsequently, on the fifth to sixth day after the injection, there was a notable increase in the proportion of aldehydes (including hexanal-M, hexanal-D, pentanal, heptanal-M, and (E)-2-hexenal). The 10 dynamic VOC fingerprint patterns mentioned earlier showcased the capability to indirectly differentiate urban PM toxicity and categorize the 31 cities into four distinct groups based on their health effects. This study provides valuable insights into the mechanisms of exhaled VOCs and underscores their critical role as biomarkers for differentiating the toxicity of different PMs and detecting the early signs of potential diseases. The results from this work also provide a scientific basis for city-specific air pollution control and policy development.
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Affiliation(s)
- Qisong Xing
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Lu Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Huaying Liu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Chenyu Zhu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Maosheng Yao
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
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Zhu Q, Liu X, Wu H, Yang C, Wang M, Chen F, Cui Y, Hao H, Hill MA, Liu Z. CARD9 deficiency improves the recovery of limb ischemia in mice with ambient fine particulate matter exposure. Front Cardiovasc Med 2023; 10:1125717. [PMID: 36860276 PMCID: PMC9968734 DOI: 10.3389/fcvm.2023.1125717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
Background Exposure to fine particulate matter (PM) is a significant risk for cardiovascular diseases largely due to increased reactive oxygen species (ROS) production and inflammation. Caspase recruitment domain (CARD)9 is critically involved in innate immunity and inflammation. The present study was designed to test the hypothesis that CARD9 signaling is critically involved in PM exposure-induced oxidative stress and impaired recovery of limb ischemia. Methods and results Critical limb ischemia (CLI) was created in male wildtype C57BL/6 and age matched CARD9 deficient mice with or without PM (average diameter 2.8 μm) exposure. Mice received intranasal PM exposure for 1 month prior to creation of CLI and continued for the duration of the experiment. Blood flow and mechanical function were evaluated in vivo at baseline and days 3, 7, 14, and 21 post CLI. PM exposure significantly increased ROS production, macrophage infiltration, and CARD9 protein expression in ischemic limbs of C57BL/6 mice in association with decreased recovery of blood flow and mechanical function. CARD9 deficiency effectively prevented PM exposure-induced ROS production and macrophage infiltration and preserved the recovery of ischemic limb with increased capillary density. CARD9 deficiency also significantly attenuated PM exposure-induced increase of circulating CD11b+/F4/80+ macrophages. Conclusion The data indicate that CARD9 signaling plays an important role in PM exposure-induced ROS production and impaired limb recovery following ischemia in mice.
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Affiliation(s)
- Qiang Zhu
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Xuanyou Liu
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Hao Wu
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Chunlin Yang
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Meifang Wang
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Feng Chen
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Yuqi Cui
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Hong Hao
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
| | - Michael A. Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, United States
| | - Zhenguo Liu
- Center for Precision Medicine, Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States,*Correspondence: Zhenguo Liu ✉
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Rohra H, Pipal AS, Satsangi PG, Taneja A. Revisiting the atmospheric particles: Connecting lines and changing paradigms. Sci Total Environ 2022; 841:156676. [PMID: 35700785 DOI: 10.1016/j.scitotenv.2022.156676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/09/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Historically, the atmospheric particles constitute the most primitive and recent class of air pollutants. The science of atmospheric particles erupted more than a century ago covering more than four decades of size, with past few years experiencing major advancements on both theoretic and data-based observational grounds. More recently, the plausible recognition between particulate matter (PM) and the diffusion of the COVID-19 pandemic has led to the accretion of interest in particle science. With motivation from diverse particle research interests, this paper is an 'old engineer's survey' beginning with the evolution of atmospheric particles and identifies along the way many of the global instances signaling the 'size concept' of PM. A theme that runs through the narrative is a 'previously known' generational evolution of particle science to the 'newly procured' portfolio of knowledge, with important gains on the application of unmet concepts and future approaches to PM exposure and epidemiological research.
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Affiliation(s)
- Himanshi Rohra
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Atar Singh Pipal
- Centre for Environmental Sustainability and Human Health, Ming Chi University of Technology, Taishan, New Taipei 243089, Taiwan
| | - P G Satsangi
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Ajay Taneja
- Department of Chemistry, Dr. Bhimrao Ambedkar University, Agra 282002, India.
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Shen D, Guo Z, Huang K, Dai P, Jin X, Li Y, Li C. Inflammation-associated pulmonary microbiome and metabolome changes in broilers exposed to particulate matter in broiler houses. J Hazard Mater 2022; 421:126710. [PMID: 34332479 DOI: 10.1016/j.jhazmat.2021.126710] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/21/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
The particulate matter (PM) in livestock houses, one of the primary sources of atmospheric PM, is not only detrimental to the respiratory health of animals and farmworkers but also poses a threat to the public environment and public health and warrants increased attention. In this study, we investigated the variation in the pulmonary microbiome and metabolome in broiler chickens exposed to PM collected from a broiler house. We examined the pulmonary microbiome and metabolome in broilers, observing that PM induced a visible change in α and β diversity. A total of 66 differential genera, including unclassified_f_Ruminococcaceae and Campylobacter, were associated with pulmonary inflammation. Untargeted metabolomics was utilised to identify 63 differential metabolites induced by PM and correlated with differential bacteria. We observed that PM resulted in injury of the broiler lung and disruption of the microbial community, as well as causing changes in the observed metabolites. These results imply that perturbations to the microbiome and metabolome may play pivotal roles in the mechanism underlying PM-induced broiler lung damage.
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Affiliation(s)
- Dan Shen
- Research Centre for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhendong Guo
- Military Veterinary Research Institute, Academy of Military Medical Sciences, Changchun 130117, China
| | - Kai Huang
- Research Centre for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Pengyuan Dai
- Research Centre for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaoming Jin
- Research Centre for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yansen Li
- Research Centre for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Chunmei Li
- Research Centre for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Liu X, Xiao Y, Zhu Q, Cui Y, Hao H, Wang M, Cowan PJ, Korthuis RJ, Li G, Sun Q, Liu Z. Circulating Endothelial Progenitor Cells Are Preserved in Female Mice Exposed to Ambient Fine Particulate Matter Independent of Estrogen. Int J Mol Sci 2021; 22:ijms22137200. [PMID: 34281260 PMCID: PMC8268796 DOI: 10.3390/ijms22137200] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/09/2021] [Accepted: 07/02/2021] [Indexed: 01/07/2023] Open
Abstract
Males have a higher risk for cardiovascular diseases (CVDs) than females. Ambient fine particulate matter (PM) exposure increases CVD risk with increased reactive oxygen species (ROS) production and oxidative stress. Endothelial progenitor cells (EPCs) are important to vascular structure and function and can contribute to the development of CVDs. The aims of the present study were to determine if sex differences exist in the effect of PM exposure on circulating EPCs in mice and, if so, whether oxidative stress plays a role. Male and female C57BL/6 mice (8–10 weeks old) were exposed to PM or a vehicle control for six weeks. ELISA analysis showed that PM exposure substantially increased the serum levels of IL-6 and IL-1β in both males and females, but the concentrations were significantly higher in males. PM exposure only increased the serum levels of TNF-α in males. Flow cytometry analysis demonstrated that ROS production was significantly increased by PM treatment in males but not in females. Similarly, the level of circulating EPCs (CD34+/CD133+ and Sca-1+/Flk-1+) was significantly decreased by PM treatment in males but not in females. Antioxidants N-acetylcysteine (NAC) effectively prevented PM exposure-induced ROS and inflammatory cytokine production and restored circulating EPC levels in male mice. In sharp contrast, circulating EPC levels remained unchanged in female mice with PM exposure, an effect that was not altered by ovariectomy. In conclusion, PM exposure selectively decreased the circulating EPC population in male mice via increased oxidative stress without a significant impact on circulating EPCs in females independent of estrogen.
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Affiliation(s)
- Xuanyou Liu
- Center for Precision Medicine, Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA; (X.L.); (Y.X.); (Q.Z.); (Y.C.); (H.H.); (M.W.)
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO 65212, USA;
| | - Yichao Xiao
- Center for Precision Medicine, Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA; (X.L.); (Y.X.); (Q.Z.); (Y.C.); (H.H.); (M.W.)
| | - Qingyi Zhu
- Center for Precision Medicine, Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA; (X.L.); (Y.X.); (Q.Z.); (Y.C.); (H.H.); (M.W.)
| | - Yuqi Cui
- Center for Precision Medicine, Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA; (X.L.); (Y.X.); (Q.Z.); (Y.C.); (H.H.); (M.W.)
| | - Hong Hao
- Center for Precision Medicine, Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA; (X.L.); (Y.X.); (Q.Z.); (Y.C.); (H.H.); (M.W.)
| | - Meifang Wang
- Center for Precision Medicine, Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA; (X.L.); (Y.X.); (Q.Z.); (Y.C.); (H.H.); (M.W.)
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO 65212, USA;
| | - Peter J. Cowan
- Immunology Research Centre, Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne 3065, Australia;
| | - Ronald J. Korthuis
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO 65212, USA;
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA
| | - Guangfu Li
- Department of Surgery and Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, MO 65212, USA;
| | - Qinghua Sun
- College of Public Health, Ohio State University, Columbus, OH 43210, USA;
| | - Zhenguo Liu
- Center for Precision Medicine, Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA; (X.L.); (Y.X.); (Q.Z.); (Y.C.); (H.H.); (M.W.)
- Correspondence: ; Tel.: +1-573-884-3278
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Tham KW, Parshetti GK, Anand P, Cheong DKW, Sekhar C. Performance characteristics of a fan filter unit (FFU) in mitigating particulate matter levels in a naturally ventilated classroom during haze conditions. Indoor Air 2021; 31:795-806. [PMID: 33215777 DOI: 10.1111/ina.12771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
The performance of a low-cost fan filter unit (FFU) in mitigating hazardous particulate matter (PM) levels in a naturally ventilated school classroom is presented. The FFU can be considered as a simplified mechanical ventilation and air-conditioning system without heating and cooling functions. The FFU improves indoor air quality through introduction of cleaned outdoor air to flush out internally generated heat and moisture and reducing infiltration by maintaining indoor pressurization. Indoor particle number concentrations were reduced between 85% and 95%. The particle removal performance (PRFFFU ) of the FFU is determined and incorporated into the augmented façade penetration factor (Paug ). A case-specific recursive dynamic mass balance model is used to characterize the infiltration factor (FINF ), deposition rate (K), and the penetration efficiency (Paug ) from continuously monitored indoor and outdoor mass concentration levels. Computed "Paug " (0.07, 0.09, and 0.13) and "FINF " (0.06, 0.08, and 0.11), respectively, for PM10, PM2.5, and PM1 suggest that exposure to PM was significantly reduced indoors. The effectiveness of the FFU for reduced "FINF " and "Paug " may be attributed to its superior filtration, dilution, and exfiltration mechanisms. In comparison with alternative PM mitigation solutions, the FFU is effective, affordable, and sustainable.
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Affiliation(s)
- Kwok Wai Tham
- Department of Building, Centre for Integrated Building Energy and Sustainability in the Tropics (CiBEST), School of Design and Environment, National University of Singapore, Singapore City, Singapore
| | - Ganesh Kashinath Parshetti
- Department of Building, Centre for Integrated Building Energy and Sustainability in the Tropics (CiBEST), School of Design and Environment, National University of Singapore, Singapore City, Singapore
| | - Prashant Anand
- Department of Building, Centre for Integrated Building Energy and Sustainability in the Tropics (CiBEST), School of Design and Environment, National University of Singapore, Singapore City, Singapore
| | - David Kok Wai Cheong
- Department of Building, Centre for Integrated Building Energy and Sustainability in the Tropics (CiBEST), School of Design and Environment, National University of Singapore, Singapore City, Singapore
| | - Chandra Sekhar
- Department of Building, Centre for Integrated Building Energy and Sustainability in the Tropics (CiBEST), School of Design and Environment, National University of Singapore, Singapore City, Singapore
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Lung SCC, Chen N, Hwang JS, Hu SC, Wang WCV, Wen TYJ, Liu CH. Panel study using novel sensing devices to assess associations of PM 2.5 with heart rate variability and exposure sources. J Expo Sci Environ Epidemiol 2020; 30:937-948. [PMID: 32753593 DOI: 10.1038/s41370-020-0254-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 07/06/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND/OBJECTIVE This work applied a newly developed low-cost sensing (LCS) device (AS-LUNG-P) and a certified medical LCS device (Rooti RX) to assessing PM2.5 impacts on heart rate variability (HRV) and determining important exposure sources, with less inconvenience to subjects. METHODS Observations using AS-LUNG-P were corrected by side-by-side comparison with GRIMM instruments. Thirty-six nonsmoking healthy subjects aged 20-65 years were wearing AS-LUNG-P and Rooti RX for 2-4 days in both Summer and Winter in Taiwan. RESULTS PM2.5 exposures were 12.6 ± 8.9 µg/m3. After adjusting for confounding factors using the general additive mixed model, the standard deviations of all normal to normal intervals reduced by 3.68% (95% confidence level (CI) = 3.06-4.29%) and the ratios of low-frequency power to high-frequency power increased by 3.86% (CI = 2.74-4.99%) for an IQR of 10.7 µg/m3 PM2.5, with impacts lasting for 4.5-5 h. The top three exposure sources were environmental tobacco smoke, incense burning, and cooking, contributing PM2.5 increase of 8.53, 5.85, and 3.52 µg/m3, respectively, during 30-min intervals. SIGNIFICANCE This is a pioneer in demonstrating application of novel LCS devices to assessing close-to-reality PM2.5 exposure and exposure-health relationships. Significant HRV changes were observed in healthy adults even at low PM2.5 levels.
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Affiliation(s)
- Shih-Chun Candice Lung
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan.
- Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan.
- Institute of Environmental Health, National Taiwan University, Taipei, Taiwan.
| | - Nathan Chen
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | | | - Shu-Chuan Hu
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | | | - Tzu-Yao Julia Wen
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | - Chun-Hu Liu
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
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Amoabeng Nti AA, Arko-Mensah J, Botwe PK, Dwomoh D, Kwarteng L, Takyi SA, Acquah AA, Tettey P, Basu N, Batterman S, Robins TG, Fobil JN. Effect of Particulate Matter Exposure on Respiratory Health of e-Waste Workers at Agbogbloshie, Accra, Ghana. Int J Environ Res Public Health 2020; 17:E3042. [PMID: 32349371 DOI: 10.3390/ijerph17093042] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/19/2020] [Accepted: 04/22/2020] [Indexed: 12/29/2022]
Abstract
Background: Direct and continuous exposure to particulate matter (PM), especially in occupational settings is known to impact negatively on respiratory health and lung function. Objective: To determine the association between concentrations of PM (2.5, 2.5–10 and 10 µm) in breathing zone and lung function of informal e-waste workers at Agbogbloshie. Methods: To evaluate lung function responses to PM (2.5, 2.5–10 and 10 µm), we conducted a longitudinal cohort study with three repeated measures among 207 participants comprising 142 healthy e-waste workers from Agbogbloshie scrapyard and 65 control participants from Madina-Zongo in Accra, Ghana from 2017–2018. Lung function parameters (FVC, FEV1, FEV1/FVC, PEF, and FEF 25-75) and PM (2.5, 2.5–10 and 10 µm) concentrations were measured, corresponding to prevailing seasonal variations. Socio-demographic data, respiratory exposures and lifestyle habits were determined using questionnaires. Random effects models were then used to examine the effects of PM (2.5, 2.5–10 and 10 µm) on lung function. Results: The median concentrations of PM (2.5, 2.5–10 and 10 µm) were all consistently above the WHO ambient air standards across the study waves. Small effect estimates per IQR of PM (2.5, 2.5–10 and 10 µm) on lung function parameters were observed even after adjustment for potential confounders. However, a 10 µg increase in PM (2.5, 2.5–10 and 10 µm) was associated with decreases in PEF and FEF 25–75 by 13.3% % [β = −3.133; 95% CI: −0.243, −0.022) and 26.6% [β = −0.266; 95% CI: −0.437, 0.094]. E-waste burning and a history of asthma significantly predicted a decrease in PEF by 14.2% [β = −0.142; 95% CI: −0.278, −0.008) and FEV1 by 35.8% [β = −0.358; 95% CI: −0.590, 0.125] among e-waste burners. Conclusions: Direct exposure of e-waste workers to PM predisposes to decline in lung function and risk for small airway diseases such as asthma and COPD.
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Dolci M, Favero C, Bollati V, Campo L, Cattaneo A, Bonzini M, Villani S, Ticozzi R, Ferrante P, Delbue S. Particulate matter exposure increases JC polyomavirus replication in the human host. Environ Pollut 2018; 241:234-239. [PMID: 29857306 DOI: 10.1016/j.envpol.2018.05.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/17/2018] [Accepted: 05/14/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Human polyomaviruses (HPyVs) asymptomatically infect the human population during childhood and establish latency in the host. Viral reactivation and urinary excretion can occur when the immune system is impaired. Exposure to particulate air pollution, including the PM10/PM2.5 components, is a public health problem and has been linked to several disorders. Studies assessing the relationship between PM10/PM2.5 exposure and viral replication are lacking. OBJECTIVES To investigate the relationship between HPyVs viruria and PM10/PM2.5 exposures. METHODS Individual environmental exposure was assessed in 50 healthy adult volunteers using a chemical transport model (CTM) with a municipality resolution for daily PM10 and monitoring stations data for daily PM2.5 exposures. For each subject, a urine sample was collected, and HPyVs (JCPyV, BKPyV, MCPyV, HPyV6, HPyV7 and HPyV9) loads were determined. Zero-inflated negative binomial (ZINB) regression was used to model the count data, as it contained excessive zeros. Covariates were chosen by stepwise selection. RESULTS HPyVs DNA was detected in 54% (median:87.6*105 copies/ml) of the urine samples. JCPyV was the prevalent (48%, (median viral load:126*105 copies/ml). Considering the load of the most frequently measured HPyVs, JCPyV, in the count-part of the ZINB model, every unitary in PM measured 2 days before urine collection (PM Day -2) was associated with an increase in JCPyV load (PM10: +4.0%, p-value = 0.002; PM2.5: +3.6%, p-value = 0.005). In the zero-part, the significant predictor was the PM10 measured 5 days before urine collection (+3%, p-value = 0.03). CONCLUSIONS The environmental levels of PM10/PM2.5 increase the JCPyV viruria. Our findings emphasize the need for studies assessing the influence of air pollution exposure on the risk of viral reactivation.
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Affiliation(s)
- Maria Dolci
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via Carlo Pascal, 36, Milano, Italy
| | - Chiara Favero
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, University of Milan, Via San Barnaba 8, Milano, Italy
| | - Valentina Bollati
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, University of Milan, Via San Barnaba 8, Milano, Italy; Department of Preventive Medicine, Fondazione IRCSS Ca' Granda, Ospedale Maggiore Policlinico, Via San Barnaba 8, Milan, Italy
| | - Laura Campo
- Department of Preventive Medicine, Fondazione IRCSS Ca' Granda, Ospedale Maggiore Policlinico, Via San Barnaba 8, Milan, Italy
| | - Andrea Cattaneo
- Department of Science and High Technology, University of Insubria, Via Valleggio, 11, Como, Italy
| | - Matteo Bonzini
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, University of Milan, Via San Barnaba 8, Milano, Italy; Department of Preventive Medicine, Fondazione IRCSS Ca' Granda, Ospedale Maggiore Policlinico, Via San Barnaba 8, Milan, Italy
| | - Sonia Villani
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via Carlo Pascal, 36, Milano, Italy
| | - Rosalia Ticozzi
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via Carlo Pascal, 36, Milano, Italy
| | - Pasquale Ferrante
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via Carlo Pascal, 36, Milano, Italy
| | - Serena Delbue
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via Carlo Pascal, 36, Milano, Italy.
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11
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Mercorio R, Bonzini M, Angelici L, Iodice S, Delbue S, Mariani J, Apostoli P, Pesatori AC, Bollati V. Effects of metal-rich particulate matter exposure on exogenous and endogenous viral sequence methylation in healthy steel-workers. Environ Res 2017; 159:452-457. [PMID: 28858759 DOI: 10.1016/j.envres.2017.08.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/23/2017] [Accepted: 08/23/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Inhaled particles have been shown to produce systemic changes in DNA methylation. Global hypomethylation has been associated to viral sequence reactivation, possibly linked to the activation of pro-inflammatory pathways occurring after exposure. This observation provides a rationale to investigate viral sequence (both exogenous and endogenous) methylation in association to metal-rich particulate matter exposure. To verify this hypothesis, we chose the Wp promoter of the Epstein-Barr Virus (EBV-Wp) and the promoter of the human-endogenous-retrovirus w (HERV-w), respectively as a paradigm of an exogenous and an endogenous retroviral sequence, to be investigated by bisulfite PCR Pyrosequencing. We enrolled 63 male workers in an electric furnace steel plant, exposed to high level of metal-rich particulate matter. RESULTS Comparing samples obtained in the first day of a work week (time 0-baseline, after 2 days off work) and the samples obtained after 3 days of work (time 1-post exposure), the mean methylation of EBV-Wp was significantly higher at baseline compared to post-exposure (meanbaseline = 56.7%5mC; meanpost-exposure = 47.9%5mC; p-value = 0.009), whereas the mean methylation of HERV-w did not significantly differ. Individual exposure to inhalable particles and metals was estimated based on measures in all working areas and time spent by the study subjects in each area. In a regression model adjusted for age, body mass index and smoking, PM and metal components had a positive association with EBV-Wp methylation (i.e. PM10: β = 5.99, p-value < 0.038; nickel: β = 17.82, p-value = 0.02; arsenic: β = 13.59, p-value < 0.015). CONCLUSIONS The difference observed comparing baseline and post-exposure samples may be suggestive of a rapid change in EBV methylation induced by air particles, while correlation between EBV methylation and PM/metal exposure may represent a more stable adaptive mechanism. Future studies investigating a larger panel of viral sequences could better elucidate possible mechanisms and their role in pro-inflammatory pathways leading to systemic health effects.
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Affiliation(s)
- Roberta Mercorio
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via san Barnaba 8, 20122 Milan, Italy
| | - Matteo Bonzini
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via san Barnaba 8, 20122 Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Laura Angelici
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via san Barnaba 8, 20122 Milan, Italy
| | - Simona Iodice
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Serena Delbue
- Department of Biomedical, Surgical and Dental Sciences, University of Milano, Via Pascal, 36-20133 Milan, Italy
| | - Jacopo Mariani
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via san Barnaba 8, 20122 Milan, Italy
| | - Pietro Apostoli
- Occupational Medicine and Industrial Hygiene, University of Brescia, Department of Experimental and Applied Medicine, Brescia, Italy
| | - Angela Cecilia Pesatori
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via san Barnaba 8, 20122 Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Valentina Bollati
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via san Barnaba 8, 20122 Milan, Italy.
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12
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Bonzini M, Pergoli L, Cantone L, Hoxha M, Spinazzè A, Del Buono L, Favero C, Carugno M, Angelici L, Broggi L, Cattaneo A, Pesatori AC, Bollati V. Short-term particulate matter exposure induces extracellular vesicle release in overweight subjects. Environ Res 2017; 155:228-234. [PMID: 28231550 PMCID: PMC5380126 DOI: 10.1016/j.envres.2017.02.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/13/2017] [Accepted: 02/15/2017] [Indexed: 05/23/2023]
Abstract
BACKGROUND Extracellular vesicles (EVs) represent a plausible molecular mechanism linking particulate matter (PM) inhalation to its systemic effects. Microvesicles (MVs) are released from many cell types in response to various stimuli. Increased body mass index (BMI) could modify the response to PM exposure due to enhanced PM uptake and/or an underlying pro-oxidative state. We investigated the relationship between EV release and PM10/PM2.5 exposure in a cohort of 51 volunteers. Subjects were stratified based on their BMI to evaluate whether overweight BMI is a determinant of hypersusceptibility to PM effects. RESULTS Exposure to PM10/PM2.5 was assessed with a personal sampler worn for 24hours before plasma collection and confirmed with monitoring station data. Size and cellular origin of plasma EVs were characterized by Nanosight analysis and flow cytometry, respectively. Multivariate regression models were run after log-transformation, stratifying subjects based on BMI (≥ or <25kg/m2). PM exposure resulted in increased release of EVs, with the maximum observed effect for endothelial MVs. For PM10 and PM2.5, the adjusted geometric mean ratio and 95% confidence interval were 3.47 (1.30, 9.27) and 3.14 (1.23, 8.02), respectively. Compared to those in normal subjects, PM-induced EV alterations in overweight subjects were more pronounced, with visibly effect in all MV subtypes, particularly endothelial MVs. CONCLUSIONS Our findings emphasize the role of EV release after PM exposure and the susceptibility of overweight subjects. Larger studies with accurate exposure assessment and complete EVs characterization/content analysis, could further clarify the molecular mechanism responsible for PM effects and of hypersusceptibility of overweight subjects.
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Affiliation(s)
- Matteo Bonzini
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Laura Pergoli
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Laura Cantone
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Mirjam Hoxha
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Andrea Spinazzè
- Department of Science and High Technology, University of Insubria, Como, Italy
| | - Luca Del Buono
- Department of Science and High Technology, University of Insubria, Como, Italy
| | - Chiara Favero
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Michele Carugno
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Laura Angelici
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Lucia Broggi
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Andrea Cattaneo
- Department of Science and High Technology, University of Insubria, Como, Italy
| | - Angela C Pesatori
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Valentina Bollati
- EPIGET LAB, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
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13
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Hamatui N, Beynon C. Particulate Matter and Respiratory Symptoms among Adults Living in Windhoek, Namibia: A Cross Sectional Descriptive Study. Int J Environ Res Public Health 2017; 14:E110. [PMID: 28125028 DOI: 10.3390/ijerph14020110] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 01/20/2017] [Indexed: 11/17/2022]
Abstract
This study aimed to estimate the prevalence of respiratory symptoms and to assess respiratory health risks associated with Particulate Matter (PM) exposure among the residents of Windhoek, Namibia. Objectives: To measure particulate pollution concentration in Windhoek through monitoring of particulate matter concentration and to identify any associations between particulate pollution, individual location, and respiratory health among the Windhoek resident’s. Methods: an adapted standardized self-administered questionnaire was used to collect respiratory health related data as well as previous exposure, while PM monitoring was done using the ASTM (American Standard Test Method) D1739 reference method. Results: A high prevalence was observed for cough (43%), breathlessness (25%), and asthma (11.2%). PM was found to be a significant risk factor for episodes of coughing and phlegm, while high PM exposure category had an increased odds ratio (OR) for episodes of phlegm and cough (OR: 2.5, 95% CI (95% confidence intervals): 0.8–8.0). No association was observed between location and respiratory health outcomes. Conclusions: The study found high levels of PM concentration across all Windhoek suburbs which were above the German, American, and Environmental Protection Agency (EPA). Enactment of legislation relating to the control and monitoring of PM related emissions at the point of generation is required at both a country and city level.
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14
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Cantone L, Iodice S, Tarantini L, Albetti B, Restelli I, Vigna L, Bonzini M, Pesatori AC, Bollati V. Particulate matter exposure is associated with inflammatory gene methylation in obese subjects. Environ Res 2017; 152:478-484. [PMID: 27838013 PMCID: PMC5250798 DOI: 10.1016/j.envres.2016.11.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/14/2016] [Accepted: 11/02/2016] [Indexed: 05/22/2023]
Abstract
BACKGROUND Overweight and obesity are becoming more widespread with alarming projections for the coming years. Obesity may increase susceptibility to the adverse effects of PM exposure, exacerbating the effects on cardiovascular diseases and altering the biomarkers of vascular inflammation. The associated biological mechanisms have not been fully understood yet; the common denominator in the pathogenesis of the co-morbidities of obesity is the presence of an active, low-grade inflammatory process. DNA methylation has been shown to regulate inflammatory pathways that are responsible for the development of cardiovascular diseases. OBJECTIVES The aim of the study was to investigate, in a population of overweight/obese subjects, the effects of PM on blood DNA methylation in genes associated to inflammatory response. METHODS Using bisulfite pyrosequencing, we measured DNA methylation in peripheral blood mononuclear cells from 186 overweighted/obese subjects. In particular, we quantified DNA methylation in a set of 3 candidate genes, including CD14, TLR4 and TNF-α, because of the important roles that these genes play in the inflammatory pathway. Personal exposure to PM10 was estimated for each subject based on the local PM10 concentrations, measured by monitoring stations at residential address. Repeated measure models were used to evaluate the association of PM10 with each genes, accounting for possible correlations among the genes that regulate the same inflammatory pathway. RESULTS We found an inverse association between the daily PM10 exposure and the DNA methylation of inflammatory genes, measured in peripheral blood of healthy overweight/obese subjects. Considering different exposure time-windows, the effect on CD14 and TLR4 methylation was observed, respectively, in days 4-5-6, and days 6-7-8. TNF-α methylation was not associated to PM10. CONCLUSIONS Our findings support a picture in which PM10 exposure and transcriptional regulation of inflammatory gene pathway in obese subjects are associated.
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Affiliation(s)
- Laura Cantone
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab., Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.
| | - Simona Iodice
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab., Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Letizia Tarantini
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab., Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Benedetta Albetti
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab., Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Ilaria Restelli
- Department of Preventive Medicine, UOC Protezione e Promozione Salute Lavoratori Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Luisella Vigna
- Department of Preventive Medicine, UOC Protezione e Promozione Salute Lavoratori Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Matteo Bonzini
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab., Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy; Department of Preventive Medicine, UOC Protezione e Promozione Salute Lavoratori Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Angela Cecilia Pesatori
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab., Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy; Epidemiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Valentina Bollati
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab., Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy; Epidemiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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15
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Sarigiannis DΑ, Karakitsios SP, Kermenidou M, Nikolaki S, Zikopoulos D, Semelidis S, Papagiannakis A, Tzimou R. Total exposure to airborne particulate matter in cities: the effect of biomass combustion. Sci Total Environ 2014; 493:795-805. [PMID: 25000575 DOI: 10.1016/j.scitotenv.2014.06.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 06/09/2014] [Accepted: 06/14/2014] [Indexed: 06/03/2023]
Abstract
The study deals with the seasonal variability of PM exposure and the effect that biomass combustion has upon it in the urban environment. The study is based on measurements, chemical analyses and modeling results performed in Thessaloniki (Greece). The measurements campaign included the assessment of outdoor and indoor air quality and the evaluation of biomass use for domestic heating. The outdoor measurements highlighted a significant increase of PM10 (from 30.1 to 73.1 μg/m(3)) and PM2.5 (from 19.4 to 62.7 μg/m(3)) concentrations during the transition from the warm to the cold period of the year 2012 compared to 2011. The increase in ambient air PM during the winter was attributed to the use of biomass burning for space heating. The latter was verified by the presence of levoglucosan in the PM (concentrations up to 8 μg/m(3)), especially for samples taken from the urban background site. Outdoor PM concentrations were also modeled using an artificial neural network model taking into account major meteorological parameters; the latter explained more than 90% of PM10 and PM2.5 day-to-day variability. Indoor concentrations followed a similar pattern, while in the case of fireplace use, average daily concentrations rise to 10 μg/m(3) and 14 μg/m(3) for PM2.5 and PM10 respectively. Indoor air concentrations were affected the most by the ambient air particle infiltration. Indoor air quality went down after 3h of open fire biomass combustion for space heating. Personal exposure was significantly determined by overall indoor air quality. Yet, dynamic exposure analysis revealed that peaks of intake do not correspond to peaks of ambient air PM concentrations altering thus total exposure patterns. Thus, cost-effective public health protection has to aim at reducing the exposure profile of susceptible population sub-groups combining awareness raising, emission reduction measures and financial incentives to influence the choice of space heating systems.
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Affiliation(s)
- Dimosthenis Α Sarigiannis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece; Centre for Research and Technology Hellas, Chemical Process and Energy Resources Institute, Natural and Renewable Resource Exploitation Laboratory, 57001 Thessaloniki, Greece.
| | - Spyros P Karakitsios
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece; Centre for Research and Technology Hellas, Chemical Process and Energy Resources Institute, Natural and Renewable Resource Exploitation Laboratory, 57001 Thessaloniki, Greece
| | - Marianthi Kermenidou
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Spyridoula Nikolaki
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Dimitrios Zikopoulos
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Stauros Semelidis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Apostolos Papagiannakis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Roxani Tzimou
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Laboratory of Analytical Chemistry, 54124 Thessaloniki, Greece
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