1
|
Villarroel F, Ponce N, Gómez FA, Muñoz C, Ramírez E, Nualart F, Salinas P. Exposure to fine particulate matter 2.5 from wood combustion smoke causes vascular changes in placenta and reduce fetal size. Reprod Toxicol 2024; 127:108610. [PMID: 38750704 DOI: 10.1016/j.reprotox.2024.108610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 04/23/2024] [Accepted: 05/09/2024] [Indexed: 05/21/2024]
Abstract
During gestation, maternal blood flow to the umbilical cord and placenta increases, facilitating efficient nutrient absorption, waste elimination, and effective gas exchange for the developing fetus. However, the effects of exposure to wood smoke during this period on these processes are unknown. We hypothesize that exposure to PM2.5, primarily sourced from wood combustion for home heating, affects placental vascular morphophysiology and fetal size. We used exposure chambers that received either filtered or unfiltered air. Female rats were exposed to PM2.5 during pre-gestational and/or gestational stages. Twenty-one days post-fertilization, placentas were collected via cesarean section. In these placentas, oxygen diffusion capacity was measured, and the expression of angiogenic factors was analyzed using qPCR and immunohistochemistry. In groups exposed to PM2.5 during pre-gestational and/or gestational stages, a decrease in fetal weight, crown-rump length, theoretical and specific diffusion capacity, and an increase in HIF-1α expression were observed. In groups exposed exclusively to PM2.5 during the pre-gestational stage, there was an increase in the expression of placental genes Flt-1, Kdr, and PIGF. Additionally, in the placental labyrinth region, the expression of angiogenic factors was elevated. Changes in angiogenesis and angiogenic factors reflect adaptations to hypoxia, impacting fetal growth and oxygen supply. In conclusion, this study demonstrates that exposure to PM2.5, emitted from wood smoke, in both pre-gestational and gestational stages, affects fetal development and placental health. This underscores the importance of addressing air pollution in areas with high levels of wood smoke, which poses a significant health risk to pregnant women and their fetuses.
Collapse
Affiliation(s)
- Francisca Villarroel
- Laboratory of Animal & Experimental Morphology, Institute of Biology, Faculty of Sciences, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile; MSc. Program in Biological Sciences, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Nikol Ponce
- PhD Program in Morphological Sciences, Universidad de La Frontera, Temuco, Chile; Center of Excellence in Surgical and Morphological Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile
| | - Fernando A Gómez
- Laboratory of Genetics and Molecular Immunology, Institute of Biology, Faculty of Sciences, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Cristián Muñoz
- Laboratory of Genetics and Molecular Immunology, Institute of Biology, Faculty of Sciences, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Eder Ramírez
- Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Faculty of Biological Sciences, Universidad de Concepcion, Concepcion, Chile
| | - Francisco Nualart
- Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Faculty of Biological Sciences, Universidad de Concepcion, Concepcion, Chile; Center for Advanced Microscopy CMA BIO-BIO, Universidad de Concepcion, Concepcion, Chile
| | - Paulo Salinas
- Laboratory of Animal & Experimental Morphology, Institute of Biology, Faculty of Sciences, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.
| |
Collapse
|
2
|
Sánchez LF, Villacura L, Catalán F, Araya RT, Guzman MAL. The Oxidative Potential of Airborne Particulate Matter Research Trends, Challenges, and Future Perspectives-Insights from a Bibliometric Analysis and Scoping Review. Antioxidants (Basel) 2024; 13:640. [PMID: 38929079 PMCID: PMC11200927 DOI: 10.3390/antiox13060640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 06/28/2024] Open
Abstract
This study is a comprehensive analysis of the oxidative potential (OP) of particulate matter (PM) and its environmental and health impacts. The researchers conducted a bibliometric analysis and scoping review, screening 569 articles and selecting 368 for further analysis. The study found that OP is an emerging field of study, with a notable increase in the number of publications in the 2010s compared to the early 2000s. The research is primarily published in eight journals and is concentrated in a few academic and university-based institutions. The study identified key research hotspots for OP-PM, emphasizing the importance of capacity building, interdisciplinary collaboration, understanding emission sources and atmospheric processes, and the impacts of PM and its OP. The study highlighted the need to consider the effects of climate change on OP-PM and the regulatory framework for PM research. The findings of this study will contribute to a better understanding of PM and its consequences, including human exposure and its effects. It will also inform strategies for managing air quality and protecting public health. Overall, this study provides valuable insights into the field of OP-PM research and highlights the need for continued research and collaboration to address the environmental and health impacts of PM.
Collapse
Affiliation(s)
| | | | | | | | - Manuel A. Leiva Guzman
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile; (L.F.S.); (L.V.); (F.C.); (R.T.A.)
| |
Collapse
|
3
|
Quinteros ME, Blazquez C, Ayala S, Kilby D, Cárdenas-R JP, Ossa X, Rosas-Diaz F, Stone EA, Blanco E, Delgado-Saborit JM, Harrison RM, Ruiz-Rudolph P. Development of Spatio-Temporal Land Use Regression Models for Fine Particulate Matter and Wood-Burning Tracers in Temuco, Chile. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:19473-19486. [PMID: 37976408 DOI: 10.1021/acs.est.3c00720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Biomass burning is common in much of the world, and in some areas, residential wood-burning has increased. However, air pollution resulting from biomass burning is an important public health problem. A sampling campaign was carried out between May 2017 and July 2018 in over 64 sites in four sessions, to develop a spatio-temporal land use regression (LUR) model for fine particulate matter (PM) and wood-burning tracers levoglucosan and soluble potassium (Ksol) in a city heavily impacted by wood-burning. The mean (sd) was 46.5 (37.4) μg m-3 for PM2.5, 0.607 (0.538) μg m-3 for levoglucosan, and 0.635 (0.489) μg m-3 for Ksol. LUR models for PM2.5, levoglucosan, and Ksol had a satisfactory performance (LOSOCV R2), explaining 88.8%, 87.4%, and 87.3% of the total variance, respectively. All models included sociodemographic predictors consistent with the pattern of use of wood-burning in homes. The models were applied to predict concentrations surfaces and to estimate exposures for an epidemiological study.
Collapse
Affiliation(s)
- María Elisa Quinteros
- Departamento de Salud Pública, Facultad de Ciencias de la Salud, Universidad de Talca, Avenida Lircay s/n, Talca, 3460000, Chile
- Programa Doctorado en Salud Pública, Instituto de Salud Poblacional, Facultad de Medicina, Universidad de Chile, Independencia 939, Santiago, 1025000, Chile
| | - Carola Blazquez
- Department of Engineering Sciences, Universidad Andres Bello, Quillota 980, Viña del Mar, 2531015, Chile
| | - Salvador Ayala
- Programa Doctorado en Salud Pública, Instituto de Salud Poblacional, Facultad de Medicina, Universidad de Chile, Independencia 939, Santiago, 1025000, Chile
- Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Marathon 1000, Ñuñoa, Santiago 0000000000, Chile
| | - Dylan Kilby
- School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, Michigan 48109, United States
| | - Juan Pablo Cárdenas-R
- Departamento de Ingeniería en Obras Civiles, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile
- Facultad de Arquitectura, Construcción y Medio Ambiente, Universidad Autónoma de Chile, Temuco 4810101, Chile
| | - Ximena Ossa
- Departamento de Salud Pública y Centro de Excelencia CIGES, Universidad de la Frontera, Caro Solar 115, Temuco, 4780000, Chile
| | - Felipe Rosas-Diaz
- Facultad de Ingeniería Civil, Universidad Autónoma de Nuevo León, San Nicolás de Los Garza 66451, Nuevo León, México
| | - Elizabeth A Stone
- Department of Chemistry and Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Estela Blanco
- Programa Doctorado en Salud Pública, Instituto de Salud Poblacional, Facultad de Medicina, Universidad de Chile, Independencia 939, Santiago, 1025000, Chile
- Centro de Investigación en Sociedad y Salud and Núcleo Milenio de Sociomedicina, Universidad Mayor, Santiago, 7510041, Chile
| | - Juana-María Delgado-Saborit
- Perinatal Epidemiology, Environmental Health and Clinical Research, School of Medicine, Universitat Jaume I, Avinguda de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellon Spain
- Environmental Research Group, MRC Centre for Environment and Health, Imperial College London, London, SW7 2BX, United Kingdom
- Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston Birmingham B152TT, U.K
| | - Roy M Harrison
- Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston Birmingham B152TT, U.K
- Department of Environmental Sciences/Center of Excellence in Environmental Studies, King Abdulaziz University, PO Box 80203, Jeddah, 21589, Saudi Arabia
| | - Pablo Ruiz-Rudolph
- * Programa de Epidemiología, Instituto de Salud Poblacional, Facultad de Medicina, Universidad de Chile, Independencia 939, Santiago 1025000, Chile
| |
Collapse
|
4
|
Bergmann ML, Andersen ZJ, Massling A, Kindler PA, Loft S, Amini H, Cole-Hunter T, Guo Y, Maric M, Nordstrøm C, Taghavi M, Tuffier S, So R, Zhang J, Lim YH. Short-term exposure to ultrafine particles and mortality and hospital admissions due to respiratory and cardiovascular diseases in Copenhagen, Denmark. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122396. [PMID: 37595732 DOI: 10.1016/j.envpol.2023.122396] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/14/2023] [Accepted: 08/15/2023] [Indexed: 08/20/2023]
Abstract
Ultrafine particles (UFP; particulate matter <0.1 μm in diameter) may be more harmful to human health than larger particles, but epidemiological evidence on their health effects is still limited. In this study, we examined the association between short-term exposure to UFP and mortality and hospital admissions in Copenhagen, Denmark. Daily concentrations of UFP (measured as particle number concentration in a size range 11-700 nm) and meteorological variables were monitored at an urban background station in central Copenhagen during 2002-2018. Daily counts of deaths from all non-accidental causes, as well as deaths and hospital admissions from cardiovascular and respiratory diseases were obtained from Danish registers. Mortality and hospital admissions associated with an interquartile range (IQR) increase in UFP exposure on a concurrent day and up to six preceding days prior to the death or admission were examined in a case-crossover study design. Odds ratios (OR) with 95% confidence intervals (CI) per one IQR increase in UFP were estimated after adjusting for temperature and relative humidity. We observed 140,079 deaths in total, 236,003 respiratory and 342,074 cardiovascular hospital admissions between 2002 and 2018. Hospital admissions due to respiratory and cardiovascular diseases were significantly positively associated with one IQR increase in UFP (OR: 1.04 [95% CI: 1.01, 1.07], lag 0-4, and 1.02 [1.00, 1.04], lag 0-1, respectively). Among the specific causes, the strongest associations were found for chronic obstructive pulmonary disease (COPD) mortality and asthma hospital admissions and two-day means (lag 0-1) of UFP (OR: 1.13 [1.01, 1.26] and 1.08 [1.00, 1.16], respectively, per one IQR increase in UFP). Based on 17 years of UFP monitoring data, we present novel findings showing that short-term exposure to UFP can trigger respiratory and cardiovascular diseases mortality and morbidity in Copenhagen, Denmark. The strongest associations with UFP were observed with COPD mortality and asthma hospital admissions.
Collapse
Affiliation(s)
- Marie L Bergmann
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Zorana J Andersen
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Massling
- Department of Environmental Science, IClimate, Aarhus University, Denmark
| | | | - Steffen Loft
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Heresh Amini
- Department of Environmental Medicine and Public Health, and Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Thomas Cole-Hunter
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Yuming Guo
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Matija Maric
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Claus Nordstrøm
- Department of Environmental Science, IClimate, Aarhus University, Denmark
| | - Mahmood Taghavi
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Stéphane Tuffier
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Rina So
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Jiawei Zhang
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Youn-Hee Lim
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
| |
Collapse
|
5
|
Pozo K, Oyola G, Jorquera H, Gomez V, Galbán-Malagón C, Mena-Carrasco M, Audy O, Příbylová P, Guida Y, Estellano VH, Lammel G, Klánová J. Environmental signature and health risk assessment of polybrominated diphenyl ethers (PBDEs) emitted from a landfill fire in Santiago de Chile. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121648. [PMID: 37088251 DOI: 10.1016/j.envpol.2023.121648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) have been flame retardants used in building materials, electronics, furnishings, vehicles, airplanes, plastics, polyurethane foams, and textiles for many years. Currently, the primary commercial mixtures, penta-, octa-, and deca-BDE, are globally restricted. Still, products containing PBDEs are expected to impact waste management and the environment for many years. In January 2016, an open fire in the Santa Marta landfill close to Santiago de Chile affected the city and surroundings. The fire caused several acute health effects and an increase in emergency hospitalizations. PBDE levels in the areas affected by the fire were determined in the air (gaseous and particulate), soil and the PBDE emissions were estimated using a dispersion model. The results showed an increase in the PBDE concentrations by a factor of 2-4 one day after the start of the fire. However, PBDE concentrations measured in PM10 and the gas phase after the fire were considered low compared to other regions. Interestingly, PBDEs' patterns differed across the sites; however, BDE209 was the dominant congener for all environmental matrices. A preliminary risk assessment was conducted using the daily exposure dose (DED) by air inhalation estimation. The results showed low DED values for adults and children and suggested no direct health risk due to PBDE exposure. This study contributes new data useful for future solid waste management initiatives in the country.
Collapse
Affiliation(s)
- Karla Pozo
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500, Brno, Czech Republic; Universidad San Sebastián, Facultad de Ingeniería y Tecnología, Lientur 1457, 4030000, Concepción, Chile.
| | - Germán Oyola
- Ministry of the Environment (MMA), Air Quality and Climate Change Division, San Martín 73, 8320000, Santiago, Chile
| | - Hector Jorquera
- Pontificia Universidad Católica de Chile, Departamento de Ingeniería Química y Bioprocesos, Avda. Vicuña Mackenna 4860, Santiago, 7820436, Chile; Centro de Desarrollo Urbano Sustentable (CEDEUS), Los Navegantes 1963, Santiago, 7520245, Chile
| | - Victoria Gomez
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Piramide, 5750, Huechuraba, Santiago, Chile
| | - Cristobal Galbán-Malagón
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Piramide, 5750, Huechuraba, Santiago, Chile; Institute of Environment, Florida International University, University Park, Miami, FL, 33199, USA
| | - Marcelo Mena-Carrasco
- Center for Climate Action, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Ondřej Audy
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500, Brno, Czech Republic
| | - Petra Příbylová
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500, Brno, Czech Republic
| | - Yago Guida
- Universidade Federal do Rio de Janeiro, Instituto de Biofísica Carlos Chagas Filho, Laboratório de Micropoluentes Jan Japenga, Av. Carlos Chagas Filho, 373, 21941-902, Rio de Janeiro, Brazil
| | - Victor Hugo Estellano
- Consultant in Geographic Information System and Ecotoxicology. l'Aubier 18, 1217, Meyrin, Geneva, Switzerland
| | - Gerhard Lammel
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500, Brno, Czech Republic; Max Planck Institute for Chemistry, Multiphase Chemistry Dept., Hahn-Meitner-Weg 1, 55128, Mainz, Germany
| | - Jana Klánová
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500, Brno, Czech Republic
| |
Collapse
|
6
|
Chen TL, Lai CH, Chen YC, Ho YH, Chen AY, Hsiao TC. Source-oriented risk and lung-deposited surface area (LDSA) of ultrafine particles in a Southeast Asia urban area. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 870:161733. [PMID: 36682561 DOI: 10.1016/j.scitotenv.2023.161733] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/05/2023] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Submicron and ultrafine particle (UFP) exposure may be epidemiologically and toxicologically linked to pulmonary, neurodegenerative, and cardiovascular diseases. This study explores UFP and fine particle sources using a positive matrix factorization (PMF) model based on PM2.5 chemical compositions and particle number size distributions (PNSDs). The particle chemical composition and size distribution contributions are simultaneously identified to evaluate lung deposition and excess cancer risks. High correlations between the PNSD and chemical composition apportionment results were observed. Fresh and aged traffic particles dominated the number concentrations, while heterogeneous, photochemical reactions and/or regional transport may have resulted in secondary aerosol formation. Fresh and aged road traffic particle sources mostly contributed to the lung deposition dosage in the pulmonary region (~53 %), followed by the tracheobronchial (~30.4 %) and head regions (~16.6 %). However, lung-deposited surface area (LDSA) concentrations were dominated by aged road traffic (~39.2 %) and secondary aerosol (~33.2 %) sources. The excess cancer risks caused by Cr6+, Ni, and As were also mainly contributed to by aged road traffic (~31.7 %) and secondary aerosols (~67 %). The source apportionments based on the physical and chemical properties of aerosol particles are complementary, offering a health impact benchmark of UFPs in a Southeast Asia urban city.
Collapse
Affiliation(s)
- Tse-Lun Chen
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan; Institute of Environmental Engineering, ETH Zürich, Zürich, Switzerland
| | - Chen-Hao Lai
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan
| | - Yu-Cheng Chen
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Yu-Hsuan Ho
- Department of Civil Engineering, National Taiwan University, Taipei, Taiwan
| | - Albert Y Chen
- Department of Civil Engineering, National Taiwan University, Taipei, Taiwan
| | - Ta-Chih Hsiao
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan; Research Centre for Environmental Changes, Academia Sinica, Taipei, Taiwan.
| |
Collapse
|
7
|
Li H, Liu L, Chen R, Feng R, Zhou Y, Hong J, Cao L, Lu Y, Dong X, Xia M, Ding B, Weng Y, Qian L, Wang L, Zhou W, Gui Y, Han X, Zhang X. Size-segregated particle number concentrations and outpatient-department visits for pediatric respiratory diseases in Shanghai, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:113998. [PMID: 36057178 DOI: 10.1016/j.ecoenv.2022.113998] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/14/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Few studies have simultaneously explored which size of particles has the greatest impact on the risk for pediatric asthma, bronchitis and upper respiratory tract infections (URTIs). OBJECTIVES To investigate the short-term association between size-segregated particle number concentrations (PNCs) and outpatient-department visits (ODVs) for major pediatric respiratory diseases. METHODS Daily counts of pediatric ODVs for asthma, bronchitis and URTIs were obtained from 66 hospitals in Shanghai, China, from 2016 to 2018. Pollutant effects were estimated using Poisson generalized additive models combined with polynomial distributed lag models. We also fitted co-pollutant cumulative effects models included six criteria air pollutants and conducted stratifying analyses by gender, age, season and geographic distances. RESULTS We identified a total of 430,103 patients with asthma, 1,547,013 patients with bronchitis, and 2,155,738 patients with URTIs from the hospitals. Effect estimates increased with decreasing particle size. Ultrafine particle (UFP) and PNCs of 0.10-0.40 µm particles (PNC0.10-0.40) were associated with increased ODVs for asthma, bronchitis and URTIs at cumulative lags up to 3d. Associations tended to appear stable after adjusting for criteria air pollutants. At the cumulative lag 0-2d, each interquartile range increase in UFP was associated with increased ODVs due to asthma (relative risk 1.21, 95% CI: 1.07, 1.38), bronchitis (1.20, 95% CI: 1.07, 1.34) and URTI (1.17, 95% CI: 1.06, 1.30), whereas the associations for PNC0.10-0.40 remained significant but attenuated in magnitude. CONCLUSIONS UFP may be a leading contributor to the adverse respiratory effects of particulate air pollution and the effects increased with decreasing particle size.
Collapse
Affiliation(s)
- Hongjin Li
- Institute for Infectious Disease Control and Prevention, Fujian Provincial Center for Disease Control and Prevention, Fuzhou 350012, Fujian, China; School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Lijuan Liu
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Renjie Chen
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Rui Feng
- Shanghai Key Laboratory of Intelligent Information Processing, School of Computer Science, Fudan University, Shanghai 200433, China
| | - Yufeng Zhou
- Institute of Pediatrics, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China
| | - Jianguo Hong
- Department of Pediatrics, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai 200080, China
| | - Lanfang Cao
- Department of Pediatrics, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - Yanming Lu
- Department of Pediatrics, South Campus, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201112, China
| | - Xiaoyan Dong
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai 200062, China
| | - Min Xia
- Department of Pediatrics, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - Bo Ding
- Department of Pediatrics, South Campus, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201112, China
| | - Yuwei Weng
- Institute for Infectious Disease Control and Prevention, Fujian Provincial Center for Disease Control and Prevention, Fuzhou 350012, Fujian, China
| | - Liling Qian
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Libo Wang
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Wenhao Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Yonghao Gui
- Cardiovascular Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Xiao Han
- Institute of Pediatrics, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China.
| | - Xiaobo Zhang
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China.
| |
Collapse
|
8
|
Impacts of Household Coal Combustion on Indoor Ultrafine Particles—A Preliminary Case Study and Implication on Exposure Reduction. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095161. [PMID: 35564556 PMCID: PMC9101610 DOI: 10.3390/ijerph19095161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 01/27/2023]
Abstract
Ultrafine particles (UFPs) significantly affect human health and climate. UFPs can be produced largely from the incomplete burning of solid fuels in stoves; however, indoor UFPs are less studied compared to outdoor UFPs, especially in coal-combustion homes. In this study, indoor and outdoor UFP concentrations were measured simultaneously by using a portable instrument, and internal and outdoor source contributions to indoor UFPs were estimated using a statistical approach based on highly temporally resolved data. The total concentrations of indoor UFPs in a rural household with the presence of coal burning were as high as 1.64 × 105 (1.32 × 105–2.09 × 105 as interquartile range) #/cm3, which was nearly one order of magnitude higher than that of outdoor UFPs. Indoor UFPs were unimodal, with the greatest abundance of particles in the size range of 31.6–100 nm. The indoor-to-outdoor ratio of UFPs in a rural household was about 6.4 (2.7–16.0), while it was 0.89 (0.88–0.91) in a home without strong internal sources. A dynamic process illustrated that the particle number concentration increased by ~5 times during the coal ignition period. Indoor coal combustion made up to over 80% of indoor UFPs, while in an urban home without coal combustion sources indoors, the outdoor sources may contribute to nearly 90% of indoor UFPs. A high number concentration and a greater number of finer particles in homes with the presence of coal combustion indicated serious health hazards associated with UFP exposure and the necessity for future controls on indoor UFPs.
Collapse
|
9
|
Mei X, Zeng C, Gong G. Predicting indoor particle dispersion under dynamic ventilation modes with high-order Markov chain model. BUILDING SIMULATION 2022; 15:1243-1258. [PMID: 34849189 PMCID: PMC8612721 DOI: 10.1007/s12273-021-0855-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/28/2021] [Accepted: 10/18/2021] [Indexed: 05/05/2023]
Abstract
Mechanical and natural ventilations are effective measures to remove indoor airborne contaminants, thereby creating improved indoor air quality (IAQ). Among various simulation techniques, Markov chain model is a relatively new and efficient method in predicting indoor airborne pollutants. The existing Markov chain model (for indoor airborne pollutants) is basically assumed as first-order, which however is difficult to deal with airborne particles with non-negligible inertial. In this study, a novel weight-factor-based high-order (second-order and third-order) Markov chain model is developed to simulate particle dispersion and deposition indoors under fixed and dynamic ventilation modes. Flow fields under various ventilation modes are solved by computational fluid dynamics (CFD) tools in advance, and then the basic first-order Markov chain model is implemented and validated by both simulation results and experimental data from literature. Furthermore, different groups of weight factors are tested to estimate appropriate weight factors for both second-order and third-order Markov chain models. Finally, the calculation process is properly designed and controlled, so that the proposed high-order (second-order) Markov chain model can be used to perform particle-phase simulation under consecutively changed ventilation modes. Results indicate that the proposed second-order model does well in predicting particle dispersion and deposition under fixed ventilation mode as well as consecutively changed ventilation modes. Compared with traditional first-order Markov chain model, the proposed high-order model performs with more reasonable accuracy but without significant computing cost increment. The most suitable weight factors of the simulation case in this study are found to be (λ1 = 0.7, λ2 = 0.3, λ3 = 0) for second-order Markov chain model, and (λ1 = 0.8, λ2 = 0.1, λ3 = 0.1) for third-order Markov chain model in terms of reducing errors in particle deposition and escape prediction. With the improvements of the efficiency of state transfer matrix construction and flow field data acquisition/processing, the proposed high-order Markov chain model is expected to provide an alternative choice for fast prediction of indoor airborne particulate (as well as gaseous) pollutants under transient flows.
Collapse
Affiliation(s)
- Xiong Mei
- School of Energy and Power Engineering, Changsha University of Science and Technology, 960 Wanjiali South Road, Changsha, 410114 China
| | - Chenni Zeng
- School of Energy and Power Engineering, Changsha University of Science and Technology, 960 Wanjiali South Road, Changsha, 410114 China
| | - Guangcai Gong
- School of Civil Engineering, Hunan University, 2 Lushan South Road, Changsha, 410082 China
| |
Collapse
|
10
|
Martinez-Soto A, Avendaño Vera CC, Boso A, Hofflinger A, Shupler M. Energy poverty influences urban outdoor air pollution levels during COVID-19 lockdown in south-central Chile. ENERGY POLICY 2021; 158:112571. [PMID: 34511701 PMCID: PMC8418915 DOI: 10.1016/j.enpol.2021.112571] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/19/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
The effect of COVID-19 lockdowns on ambient air pollution levels in urban south-central Chile, where outdoor air pollution primarily originates indoors from wood burning for heating, may differ from trends in cities where transportation and industrial emission sources dominate. This quasi-experimental study compared hourly fine (PM2.5) and coarse (PM10) particulate matter measurements from six air monitors (three beta attenuation monitors; three low-cost sensors) in commercial and low/middle-income residential areas of Temuco, Chile between 2019 and 2020. The potential impact of varying annual meterological conditions on air quality was also assessed. During COVID-19 lockdown, average monthly ambient PM2.5 concentrations in a commercial and middle-income residential neighborhood of Temuco were up to 50% higher (from 12 to 18 μg/m3) and 59% higher (from 22 to 35 μg/m3) than 2019 levels, respectively. Conversely, PM2.5 levels decreased by up to 52% (from 43 to 21 μg/m3) in low-income areas. The fine fraction of PM10 in April 2020 was 48% higher than in April 2017-2019 (from 50% to 74%) in a commercial area. These changes did not appear to result from meterological differences between years. During COVID-19 lockdown, higher outdoor PM2.5 pollution from wood heating existed in more affluent areas of Temuco, while PM2.5 concentrations declined among poorer households refraining from wood heating. To reduce air pollution and energy poverty in south-central Chile, affordability of clean heating fuels (e.g. electricity) should be a policy priority.
Collapse
Affiliation(s)
- Aner Martinez-Soto
- Department of Civil Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco, Chile
| | - Constanza C Avendaño Vera
- Department of Civil Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco, Chile
| | - Alex Boso
- Núcleo en Ciencias Sociales y Humanidades, Butamallín Research Center for Global Change, Universidad de La Frontera, Temuco, Chile
| | - Alvaro Hofflinger
- Núcleo en Ciencias Sociales y Humanidades, Butamallín Research Center for Global Change, Universidad de La Frontera, Temuco, Chile
| | - Matthew Shupler
- Department of Public Health, Policy and Systems, University of Liverpool, UK
| |
Collapse
|
11
|
Gao S, Li T, Pan J, Han D, Lin J, Niu Q, Liu R. Toxic effect and mechanism of ultrafine carbon black on mouse primary splenocytes and two digestive enzymes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 212:111980. [PMID: 33545408 DOI: 10.1016/j.ecoenv.2021.111980] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
This paper investigated the toxic effect and mechanism of ultrafine carbon black (UFCB) on splenocytes and enzymes in the digestive system. It was found that the toxicity of UFCB to splenocytes was dose-dependent. UFCB with a low concentration (<15 μg/mL) had no significant effect on splenocytes while UFCB with high concentration (>15 μg/mL) induced significant oxidative damage with increased content of reactive oxygen species (ROS) (134%) and malonaldehyde (MDA) (222.3%) along with the decreased activity of superoxide dismutase (SOD) (55.63%) and catalase (CAT) (87.73%). Analysis combined cellular and molecular levels indicated that UFCB induced splenocyte toxicity through oxidative stress. The interactions of UFCB with two important digestive enzymes, α-amylase and lipase, were also studied respectively. Results showed that the interaction of UFCB and the two enzymes altered the particle size and fluorescence intensity in both experimental systems. The formation of protein corona also resulted in the contraction of the polypeptide skeleton in both enzymes, which further inhibited their activity. Our work provided basic data on the toxicity of UFCB in the spleen and digestive system and fills the gap in the study of UFPs toxicity. CAPSULE: UFCB induced splenocyte toxicity and enzyme dysfunction through oxidative stress and protein corona formation respectively.
Collapse
Affiliation(s)
- Sichen Gao
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao 266237, Shandong, PR China
| | - Tong Li
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao 266237, Shandong, PR China
| | - Jie Pan
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao 266237, Shandong, PR China
| | - Dengcheng Han
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao 266237, Shandong, PR China
| | - Jing Lin
- North China Sea Data & Information Service of SOA, 27# Yunling Road, Laoshan, Qingdao 266061, PR China
| | - Qigui Niu
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao 266237, Shandong, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao 266237, Shandong, PR China.
| |
Collapse
|
12
|
Chatkin J, Correa L, Santos U. External Environmental Pollution as a Risk Factor for Asthma. Clin Rev Allergy Immunol 2021; 62:72-89. [PMID: 33433826 PMCID: PMC7801569 DOI: 10.1007/s12016-020-08830-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2020] [Indexed: 12/12/2022]
Abstract
Air pollution is a worrisome risk factor for global morbidity and mortality and plays a special role in many respiratory conditions. It contributes to around 8 million deaths/year, with outdoor exposure being responsible for more than 4.2 million deaths throughout the world, while more than 3.8 million die from situations related to indoor pollution. Pollutant agents induce several respiratory symptoms. In addition, there is a clear interference in numerous asthma outcomes, such as incidence, prevalence, hospital admission, visits to emergency departments, mortality, and asthma attacks, among others. The particulate matter group of pollutants includes coarse particles/PM10, fine particles/PM2.5, and ultrafine particles/PM0.1. The gaseous components include ground-level ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide. The timing, load, and route of allergen exposure are other items affecting allergic disease phenotypes. The complex interaction between pollutant exposures and human host factors has an implication in the development and rise of asthma as a public health problem. However, there are hiatuses in the understanding of the pathways in this disease. The routes through which pollutants induce asthma are multiple, and include the epigenetic changes that occur in the respiratory tract microbiome, oxidative stress, and immune dysregulation. In addition, the expansion of the modern Westernized lifestyle, which is characterized by intense urbanization and more time spent indoors, resulted in greater exposure to polluted air. Another point to consider is the different role of the environment according to age groups. Children growing up in economically disadvantaged neighborhoods suffer more important negative health impacts. This narrative review highlights the principal polluting agents, their sources of emission, epidemiological findings, and mechanistic evidence that links environmental exposures to asthma.
Collapse
Affiliation(s)
- Jose Chatkin
- Pulmonology Division, School of Medicine, Pontifical Catholic University Rio Grande Do Sul (PUCRS), Hospital São Lucas da PUCRS, Porto Alegre, Brazil.
| | - Liana Correa
- Health Sciences Doctorate Program, School of Medicine, Pontifical Catholic University Rio Grande Do Sul (PUCRS), Pulmonologist Hospital São Lucas da PUCRS, Porto Alegre, Brazil
| | - Ubiratan Santos
- Pulmonology Division of Instituto Do Coração, Hospital das Clínicas, University of São Paulo Medical School, São Paulo, Brazil
| |
Collapse
|
13
|
Samoli E, Rodopoulou S, Schneider A, Morawska L, Stafoggia M, Renzi M, Breitner S, Lanki T, Pickford R, Schikowski T, Enembe O, Zhang S, Zhao Q, Peters A. Meta-analysis on short-term exposure to ambient ultrafine particles and respiratory morbidity. Eur Respir Rev 2020; 29:29/158/200116. [PMID: 33115789 PMCID: PMC9488642 DOI: 10.1183/16000617.0116-2020] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 05/22/2020] [Indexed: 11/24/2022] Open
Abstract
Aim There is growing interest in the health effects following exposure to ambient particles with a diameter <100 nm defined as ultrafine particles (UFPs), although studies so far have reported inconsistent results. We have undertaken a systematic review and meta-analysis for respiratory hospital admissions and emergency room visits following short-term exposure to UFPs. Methods We searched PubMed and the Web of Science for studies published up to March 2019 to update previous reviews. We applied fixed- and random-effects models, assessed heterogeneity between cities and explored possible effect modifiers. Results We identified nine publications, reporting effects from 15 cities, 11 of which were European. There was great variability in exposure assessment, outcome measures and the exposure lags considered. Our meta-analyses did not support UFP effects on respiratory morbidity across all ages. We found consistent statistically significant associations following lag 2 exposure during the warm period and in cities with mean daily UFP concentrations <6000 particles·cm‒3, which was approximately the median of the city-specific mean levels. Among children aged 0–14 years, a 10 000 particle·cm‒3 increase in UFPs 2 or 3 days before was associated with a relative risk of 1.01 (95% CI 1.00–1.02) in respiratory hospital admissions. Conclusions Our study indicates UFP effects on respiratory health among children, and during the warm season across all ages at longer lags. The limited evidence and the large heterogeneity of previous reports call for future exposure assessment harmonisation and expanded research. Studies on short-term exposure to ultrafine particles and respiratory admissions show large variability in the exposure assessment methodology. We found indications of effects in lower concentrations, children and during the warm period of the year.https://bit.ly/2zynMza
Collapse
Affiliation(s)
- Evangelia Samoli
- Dept of Hygiene, Epidemiology and Medical Statistics, Medical school, National and Kapodistrian University of Athens, Athens, Greece
| | - Sophia Rodopoulou
- Dept of Hygiene, Epidemiology and Medical Statistics, Medical school, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexandra Schneider
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Lidia Morawska
- International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane, Australia
| | | | - Matteo Renzi
- Dept of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Susanne Breitner
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,IBE-Chair of Epidemiology, Ludwig Maximilians Universität München, Munich, Germany
| | - Timo Lanki
- Finnish Institute for Health and Welfare, Kuopio, Finland.,University of Eastern Finland, Dept of Environmental and Biological Sciences, Kuopio, Finland.,University of Eastern Finland, School of Medicine, Kuopio, Finland
| | - Regina Pickford
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Tamara Schikowski
- Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Okokon Enembe
- Finnish Institute for Health and Welfare, Kuopio, Finland
| | - Siqi Zhang
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Qi Zhao
- Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Annette Peters
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,IBE-Chair of Epidemiology, Ludwig Maximilians Universität München, Munich, Germany
| |
Collapse
|
14
|
Muñoz-Pizza DM, Villada-Canela M, Reyna MA, Texcalac-Sangrador JL, Serrano-Lomelin J, Osornio-Vargas Á. Assessing the Influence of Socioeconomic Status and Air Pollution Levels on the Public Perception of Local Air Quality in a Mexico-US Border City. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17134616. [PMID: 32604985 PMCID: PMC7369924 DOI: 10.3390/ijerph17134616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/17/2020] [Accepted: 06/25/2020] [Indexed: 01/25/2023]
Abstract
Air pollution in developing countries is a growing concern. It is associated with urbanization and social and economic structures. The understanding of how social factors can influence the perception and the potential impact of air pollution have not been addressed sufficiently. This paper addresses the social vulnerability and exposure to PM10 association and its influence on the air quality perception of residents in Mexicali, a Mexico–US border city. This study used individual variables and population census data, as well as statistical and spatial analyses. A cluster of socially vulnerable populations with high exposure to coarse particulate matter (PM10) was found in the city’s peripheral areas. The spatial distribution of the local perception of air quality varied by the exposure zones of the estimated PM10 concentrations. Respondents living in very high exposure areas perceive air quality as “poor,” contrarily to a worse perception in areas of intermediate and lower exposure to PM10. Proximity to stationary sources of pollution was associated with a poor perception of air quality. Results also indicate that low household income and poor air quality perceived at the place of residence negatively influences the perceived changes in the air quality over time. The knowledge of chronic health effects related to air pollution was scarce in the sampled population, especially in the areas with very high exposure and high social vulnerability. These findings can serve as a support in local air quality management.
Collapse
Affiliation(s)
- Dalia M. Muñoz-Pizza
- Doctorado en Medio Ambiente y Desarrollo, Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada 22860, Mexico
- Correspondence: (D.M.M.-P.); (M.V.-C.)
| | - Mariana Villada-Canela
- Doctorado en Medio Ambiente y Desarrollo, Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada 22860, Mexico
- Correspondence: (D.M.M.-P.); (M.V.-C.)
| | - M. A. Reyna
- Cuerpo académico de Bioingeniería y Salud Ambiental, Universidad Autónoma de Baja California, Mexicali 21100, Mexico;
| | - José Luis Texcalac-Sangrador
- Environmental Health Department, Center for Population Health Research, National Institute of Public Health, Ciudad de Mexico 14080, Mexico;
| | - Jesús Serrano-Lomelin
- Department of Obstetrics & Gynecology, Heritage Medical Research Centre, University of Alberta, Edmonton, AB T6G 2R7, Canada;
| | - Álvaro Osornio-Vargas
- Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada;
| |
Collapse
|
15
|
Experimental Study on Hydrothermal Carbonization of Lignocellulosic Biomass with Magnesium Chloride for Solid Fuel Production. Processes (Basel) 2020. [DOI: 10.3390/pr8040444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The effect of magnesium chloride as an additive of hydrothermal carbonization (HTC) of lignocellulosic biomass (Pinus radiata sawdust) was studied. The HTC tests were carried out at fixed conditions of temperature and residence time of 220 °C and 1 h, respectively, and varying the dose of magnesium chloride in the range 0.0–1.0 g MgCl2/g biomass. The carbonized product (hydrochar) was tested in order to determine its calorific value (HHV) while using PARR 6100 calorimeter, mass yield by gravimetry, elemental analysis using a LECO TruSpec elemental analyzer, volatile matter content, and ash content were obtained by standardized procedures using suitable ovens for it. The results show that using a dose of 0.75 g MgCl2/g biomass results in an impact on the mass yield that was almost equal to change operating conditions from 220 to 270 °C and from 0.5 to 1 h, without additive. Likewise, the calorific value increases by 33% for this additive dose, resulting in an energy yield of 68%, thus generating a solid fuel of prominent characteristics.
Collapse
|
16
|
The health effects of ultrafine particles. Exp Mol Med 2020; 52:311-317. [PMID: 32203102 PMCID: PMC7156741 DOI: 10.1038/s12276-020-0403-3] [Citation(s) in RCA: 273] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 01/17/2020] [Indexed: 01/08/2023] Open
Abstract
Ultrafine particles (PM0.1), which are present in the air in large numbers, pose a health risk. They generally enter the body through the lungs but translocate to essentially all organs. Compared to fine particles (PM2.5), they cause more pulmonary inflammation and are retained longer in the lung. Their toxicity is increased with smaller size, larger surface area, adsorbed surface material, and the physical characteristics of the particles. Exposure to PM0.1 induces cough and worsens asthma. Metal fume fever is a systemic disease of lung inflammation most likely caused by PM0.1. The disease is manifested by systemic symptoms hours after exposure to metal fumes, usually through welding. PM0.1 cause systemic inflammation, endothelial dysfunction, and coagulation changes that predispose individuals to ischemic cardiovascular disease and hypertension. PM0.1 are also linked to diabetes and cancer. PM0.1 can travel up the olfactory nerves to the brain and cause cerebral and autonomic dysfunction. Moreover, in utero exposure increases the risk of low birthweight. Although exposure is commonly attributed to traffic exhaust, monitored students in Ghana showed the highest exposures in a home near a trash burning site, in a bedroom with burning coils employed to abate mosquitos, in a home of an adult smoker, and in home kitchens during domestic cooking. The high point-source production and rapid redistribution make incidental exposure common, confound general population studies and are compounded by the lack of global standards and national reporting. The potential for PM0.1 to cause harm to health is great, but their precise role in many illnesses is still unknown and calls for more research. Tiny particles found in air pollution enter the body usually through the lungs and disperse to other organs, causing more inflammation and cellular toxicity than larger particles. Dean Schraufnagel from the University of Illinois at Chicago, USA, reviews the way by which nano-sized air pollutants threaten human health. He describes how ultrafine particles measuring less than 100 nanometres in diameter elicit greater inflammatory responses and stay in the lungs longer than larger particles. Repeated contact with extremely small particulate matter can trigger heart disease, diabetes, cancer, neurological disorders and respiratory ailments, especially among children and people with long-term occupational exposure. Much remains to be learned about the disease-causing properties of these nanoparticles and their long-term effects. Further developments in understanding remain handicapped by the lack of international standards and reporting measures.
Collapse
|
17
|
Stapleton EM, Manges R, Parker G, Stone EA, Peters TM, Blount RJ, Noriega J, Li X, Zabner J, Polgreen PM, Chipara O, Herman T, Comellas AP. Indoor Particulate Matter From Smoker Homes Induces Bacterial Growth, Biofilm Formation, and Impairs Airway Antimicrobial Activity. A Pilot Study. Front Public Health 2020; 7:418. [PMID: 32039129 PMCID: PMC6992572 DOI: 10.3389/fpubh.2019.00418] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 12/27/2019] [Indexed: 11/13/2022] Open
Abstract
Background: Particulate matter (PM) air pollution causes deleterious health effects; however, less is known about health effects of indoor air particulate matter (IAP). Objective: To understand whether IAP influences distinct mechanisms in the development of respiratory tract infections, including bacterial growth, biofilm formation, and innate immunity. Additionally, we tested whether IAP from Iowa houses of subjects with and without recent respiratory exacerbations recapitulated the National Institute of Standards and Technology (NIST) IAP findings. Methods: To test the effect of NIST and Iowa IAP on bacterial growth and biofilm formation, we assessed Staphylococcus aureus growth and Pseudomonas aeruginosa biofilm formation with and without the presence of IAP. To assess the effect of IAP on innate immunity, we exposed primary human airway surface liquid (ASL) to NIST, and Iowa IAP. Lastly, we tested whether specific metals may be responsible for effects on airway innate immunity. Results: NIST and Iowa IAP significantly enhanced bacterial growth and biofilm formation. NIST IAP (whole particle and the soluble portion) impaired ASL antimicrobial activity. IAP from one Iowa home significantly impaired ASL antimicrobial activity (p < 0.05), and five other homes demonstrated a trend (p ≤ 0.18) of impaired ASL antimicrobial activity. IAP from homes of subjects with a recent history of respiratory exacerbation tended (p = 0.09) to impair ASL antimicrobial activity more than IAP from homes of those without a history respiratory exacerbation. Aluminum and Magnesium impaired ASL antimicrobial activity, while copper was bactericidal. Combining metals varied their effect on ASL antimicrobial activity. Conclusions: NIST IAP and Iowa IAP enhanced bacterial growth and biofilm formation. ASL antimicrobial activity was impaired by NIST IAP, and Iowa house IAP from subjects with recent respiratory exacerbation tended to impair ASL antimicrobial activity. Individual metals may explain impaired ASL antimicrobial activity; however, antimicrobial activity in the presence of multiple metals warrants further study.
Collapse
Affiliation(s)
- Emma M Stapleton
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Robert Manges
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Gavin Parker
- Department of Chemistry, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United States
| | - Elizabeth A Stone
- Department of Chemistry, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United States
| | - Thomas M Peters
- Department of Occupational and Environmental Health, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United States
| | - Robert J Blount
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Julio Noriega
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Xiaopeng Li
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Joseph Zabner
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Philip M Polgreen
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Octav Chipara
- Department of Computer Science, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United States
| | - Ted Herman
- Department of Computer Science, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United States
| | - Alejandro P Comellas
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| |
Collapse
|
18
|
Rowe PM, Cordero RR, Warren SG, Stewart E, Doherty SJ, Pankow A, Schrempf M, Casassa G, Carrasco J, Pizarro J, MacDonell S, Damiani A, Lambert F, Rondanelli R, Huneeus N, Fernandoy F, Neshyba S. Black carbon and other light-absorbing impurities in snow in the Chilean Andes. Sci Rep 2019; 9:4008. [PMID: 30850621 PMCID: PMC6408441 DOI: 10.1038/s41598-019-39312-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 01/16/2019] [Indexed: 11/09/2022] Open
Abstract
Vertical profiles of black carbon (BC) and other light-absorbing impurities were measured in seasonal snow and permanent snowfields in the Chilean Andes during Austral winters 2015 and 2016, at 22 sites between latitudes 18°S and 41°S. The samples were analyzed for spectrally-resolved visible light absorption. For surface snow, the average mass mixing ratio of BC was 15 ng/g in northern Chile (18-33°S), 28 ng/g near Santiago (a major city near latitude 33°S, where urban pollution plays a significant role), and 13 ng/g in southern Chile (33-41°S). The regional average vertically-integrated loading of BC was 207 µg/m2 in the north, 780 µg/m2 near Santiago, and 2500 µg/m2 in the south, where the snow season was longer and the snow was deeper. For samples collected at locations where there had been no new snowfall for a week or more, the BC concentration in surface snow was high (~10-100 ng/g) and the sub-surface snow was comparatively clean, indicating the dominance of dry deposition of BC. Mean albedo reductions due to light-absorbing impurities were 0.0150, 0.0160, and 0.0077 for snow grain radii of 100 µm for northern Chile, the region near Santiago, and southern Chile; respective mean radiative forcings for the winter months were 2.8, 1.4, and 0.6 W/m2. In northern Chile, our measurements indicate that light-absorption by impurities in snow was dominated by dust rather than BC.
Collapse
Affiliation(s)
- Penny M Rowe
- Universidad de Santiago de Chile, Santiago, Chile. .,NorthWest Research Associates, Redmond, WA, USA.
| | | | - Stephen G Warren
- Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA
| | - Emily Stewart
- University of Puget Sound, Department of Chemistry, Tacoma, WA, USA
| | - Sarah J Doherty
- Joint Institute for the Study of Atmosphere and Ocean, University of Washington, Seattle, Washington, USA
| | - Alec Pankow
- University of Puget Sound, Department of Chemistry, Tacoma, WA, USA
| | - Michael Schrempf
- Leibniz Universität Hannover, Institute of Meteorology and Climatology, Hannover, Germany
| | - Gino Casassa
- Unidad de Glaciología y Nieves, Dirección General de Aguas (DGA), Ministerio de Obras Públicas (MOP), Santiago, Chile.,Centro de Investigación GAIA Antártica, Universidad de Magallanes, Punta Arenas, Chile
| | - Jorge Carrasco
- Unidad de Glaciología y Nieves, Dirección General de Aguas (DGA), Ministerio de Obras Públicas (MOP), Santiago, Chile
| | | | - Shelley MacDonell
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Alessandro Damiani
- Universidad de Santiago de Chile, Santiago, Chile.,Center for Environmental Remote Sensing, Chiba University, Chiba, Japan
| | - Fabrice Lambert
- Department of Physical Geography, Pontifica Universidad Catolica de Chile, Santiago, Chile.,Center for Climate and Resilience Research CR2, Universidad de Chile, Santiago, Chile
| | - Roberto Rondanelli
- Universidad de Chile, Santiago, Chile.,Center for Climate and Resilience Research CR2, Universidad de Chile, Santiago, Chile
| | - Nicolas Huneeus
- Universidad de Chile, Santiago, Chile.,Center for Climate and Resilience Research CR2, Universidad de Chile, Santiago, Chile
| | - Francisco Fernandoy
- Laboratorio de Análisis Isotópico, Facultad de Ingeniería, Universidad Nacional Andrés Bello, Viña del Mar, Chile
| | - Steven Neshyba
- University of Puget Sound, Department of Chemistry, Tacoma, WA, USA
| |
Collapse
|
19
|
Health effects of ultrafine particles: a systematic literature review update of epidemiological evidence. Int J Public Health 2019; 64:547-559. [DOI: 10.1007/s00038-019-01202-7] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 01/04/2019] [Accepted: 01/09/2019] [Indexed: 12/21/2022] Open
|
20
|
Wang Y, Zu Y, Huang L, Zhang H, Wang C, Hu J. Associations between daily outpatient visits for respiratory diseases and ambient fine particulate matter and ozone levels in Shanghai, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:754-763. [PMID: 29778811 DOI: 10.1016/j.envpol.2018.05.029] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/06/2018] [Accepted: 05/09/2018] [Indexed: 05/26/2023]
Abstract
Air pollution in China has been very serious during the recent decades. However, few studies have investigated the effects of short-term exposure to PM2.5 and O3 on daily outpatient visits for respiratory diseases. We examined the effects of PM2.5 and O3 on the daily outpatient visits for respiratory diseases, explored the sensitivities of different population subgroups and analyzed the relative risk (RR) of PM2.5 and O3 in different seasons in Shanghai during 2013-2016. The generalized linear model (GLM) was applied to analyze the exposure-response relationship between air pollutants (daily average PM2.5 and daily maximum 8-h average O3), and daily outpatient visits due to respiratory diseases. The sensitivities of males and females at the ages of 15-60 yr-old and 60+ yr-old to the pollutants were also studied for the whole year and for the cold and warm months, respectively. Finally, the results of the single-day lagged model were compared with that of the moving average lag model. At lag 0 day, the RR of respiratory outpatients increased by 0.37% with a 10 μg/m3 increase in PM2.5. Exposure to PM2.5 (RR, 1.0047, 95% CI, 1.0032-1.0062) was more sensitive for females than for males (RR, 1.0025, 95% CI, 1.0008-1.0041), and was more sensitive for the 15-60 yr-old (RR, 1.0041, 95% CI, 1.0027-1.0055) than the 60+ yr-old age group (RR, 1.0031, 95% CI, 1.0014-1.0049). O3 was not significantly associated with respiratory outpatient visits during the warm periods, but was negatively associated during the cold periods. PM2.5 was more significantly in the cold periods than that in the warm periods. The results indicated that control of PM2.5, compared to O3, in the cold periods would be more beneficial to the respiratory health in Shanghai. In addition, the single-day lagged model underestimated the relationship between PM2.5 and O3 and outpatient visits for respiratory diseases compared to the moving average lag model.
Collapse
Affiliation(s)
- Yiyi Wang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing, 210044, China
| | - Yaqun Zu
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing, 210044, China
| | - Lin Huang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing, 210044, China
| | - Hongliang Zhang
- Department of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, 77803, LA, USA.
| | - Changhui Wang
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China
| | - Jianlin Hu
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing, 210044, China.
| |
Collapse
|
21
|
Potential of Particle Matter Dry Deposition on Green Roofs and Living Walls Vegetation for Mitigating Urban Atmospheric Pollution in Semiarid Climates. SUSTAINABILITY 2018. [DOI: 10.3390/su10072431] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the last two decades, the incorporation of green roofs and living walls in buildings has increased significantly worldwide because of their benefits such as building energy savings, promoting biodiversity, controlling water run-off, mitigating urban heat island effect, improving indoor and urban air quality, and connecting people with nature. However, few studies have quantified the impact of green roofs (GRs) and living walls (LWs) on mitigating air pollution, especially in semiarid climates where airborne particle matter (PM) levels are high. Therefore, the aim of this paper is quantifying the dry deposition of PM10 and PM2.5 by several vegetation species commonly used in GRs and LWs in semiarid climates. Five species (Pitosporumtobira, Lavandulaangustifolia, Lampranthusspectabillis, Sedumalbum, and Sedumreflexum) for GRs and four species (Apteniacordiflora, Erigeronkarvinskianus, Sedumpalmeri, and Sedumspuriump.) for LWs were tested in an experimental facility—through washing, filtering, and weighing—to quantify the dry deposition of PM2.5 and PM10 on vegetation leaves as well as PM captured by the leaf wax. The main result is that a significant amount of PM is deposited on the typical vegetation used in GRs and LWs in semiarid climates. However, large differences in PM dry deposition were found among species, ranging from 0.09 μg/cm2∙h−1 to 1.32 μg/cm2∙h−1 for PM2.5, 0.48 μg/cm2∙h−1 to 4.7 μg/cm2∙h−1 for PM10 and 0.41 μg/cm2∙h−1 to 25.6 μg/cm2∙h−1 for leaf wax. The species that showed the highest potential to capture PM were S. album, S. reflexum, S. palmeri, and L. spectabillis. This study shows this green infrastructures can contribute to mitigate air pollution, thus GRs and LWs have the potential for being included in decontamination plans.
Collapse
|
22
|
Stabile L, Buonanno G, Avino P, Frattolillo A, Guerriero E. Indoor exposure to particles emitted by biomass-burning heating systems and evaluation of dose and lung cancer risk received by population. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:65-73. [PMID: 29274539 DOI: 10.1016/j.envpol.2017.12.055] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 06/07/2023]
Abstract
Homes represent a critical microenvironment in terms of air quality due to the proximity to main particle sources and the lack of proper ventilation systems. Biomass-fed heating systems are still extensively used worldwide, then likely emitting a significant amount of particles in indoor environments. Nonetheless, research on biomass emissions are limited to their effects on outdoor air quality then not properly investigating the emission in indoor environments. To this purpose, the present paper aims to evaluate the exposure to different airborne particle metrics (including both sub- and super-micron particles) and attached carcinogenic compounds in dwellings where three different heating systems were used: open fireplaces, closed fireplaces and pellet stoves. Measurements in terms of particle number, lung-deposited surface area, and PM fraction concentrations were measured during the biomass combustion activities, moreover, PM10 samples were collected and chemically analyzed to obtain mass fractions of carcinogenic compounds attached onto particles. Airborne particle doses received by people exposed in such environments were evaluated as well as their excess lung cancer risk. Most probable surface area extra-doses received by people exposed to open fireplaces on hourly basis (56 mm2 h-1) resulted one order of magnitude larger than those experienced for exposure to closed fireplaces and pellet stoves. Lifetime extra risk of Italian people exposed to the heating systems under investigation were larger than the acceptable lifetime risk (10-5): in particular, the risk due to the open fireplace (8.8 × 10-3) was non-negligible when compared to the overall lung cancer risk of typical Italian population.
Collapse
Affiliation(s)
- L Stabile
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Cassino FR, Italy.
| | - G Buonanno
- Department of Engineering, University "Parthenope", Naples, Italy; Queensland University of Technology, Brisbane, Australia; Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Cassino FR, Italy
| | - P Avino
- D.I.P.I.A., INAIL Settore Ricerca, via Urbana 167, I-00184 Rome, Italy; DIAAA, University of Molise, Via de Sanctis, Campobasso, Italy
| | - A Frattolillo
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, via Marengo 2, 09123 Cagliari, Italy
| | - E Guerriero
- Institute of Atmospheric Pollution Research, National Research Council, Rome Research Area-Montelibretti, Monterotondo Scalo, Italy
| |
Collapse
|
23
|
Ghoshdastidar AJ, Hu Z, Nazarenko Y, Ariya PA. Exposure to nanoscale and microscale particulate air pollution prior to mining development near a northern indigenous community in Québec, Canada. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:8976-8988. [PMID: 29332278 DOI: 10.1007/s11356-018-1201-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 01/02/2018] [Indexed: 06/07/2023]
Abstract
This study serves as a baseline characterization of indoor and outdoor air quality in a remote northern indigenous community prior to the start of a major nearby mining operation, including measurements of nanoparticles, which has never been performed in this context before. We performed aerosol sample collection and real-time aerosol measurements at six different locations at the Cree First Nation of Waswanipi and the Montviel campsite, located 45 km west of the Cree First Nation of Waswanipi, in the south of the Nord-du-Québec region. High concentrations of airborne nanoparticles (up to 3.98 × 104 ± 8.9 × 103 cm-3 at 64.9-nm midpoint particle diameter) and fine particles (up to 1.99 × 103 ± 1.6 × 102 cm-3 at 0.3-μm midpoint particle diameter) were measured inside a residential home, where we did not find any ventilation or air filtration systems. The most abundant particle sizes by mass were between 0.19 and 0.55 μm. The maximum concentration of analyzed heavy metals was detected at the d50 cut-off particle size of 0.31 μm; and the most abundant heavy metals in the aerosol samples were Al, Ba, Zn, Cu, Hg, and Pb. We concluded that the sources of the relatively high indoor particle concentrations were likely laundry machines and cooking emissions in the absence of a sufficient ventilation system. However, the chemical composition of particles resulting from mining activities is expected to be different from that of the aerosol particles from indoor sources. Installation and proper maintenance of sufficient ventilation and air filtration systems may reduce the total burden of disease from outdoor and indoor air pollution and remediate infiltrated indoor particulate pollution from the mining sources as well.
Collapse
Affiliation(s)
- Avik J Ghoshdastidar
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 2K6, Canada
| | - Zhenzhong Hu
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 2K6, Canada
| | - Yevgen Nazarenko
- Department of Atmospheric and Oceanic Sciences, McGill University, 805 Sherbrooke Street West, Montreal, QC, H3A 0B9, Canada
| | - Parisa A Ariya
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 2K6, Canada.
- Department of Atmospheric and Oceanic Sciences, McGill University, 805 Sherbrooke Street West, Montreal, QC, H3A 0B9, Canada.
| |
Collapse
|
24
|
Biodegradation of benzo[α]pyrene, toluene, and formaldehyde from the gas phase by a consortium of Rhodococcus erythropolis and Fusarium solani. Appl Microbiol Biotechnol 2017; 101:6765-6777. [DOI: 10.1007/s00253-017-8400-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/14/2017] [Accepted: 06/15/2017] [Indexed: 10/19/2022]
|
25
|
Molina C, Toro A R, Morales S RG, Manzano C, Leiva-Guzmán MA. Particulate matter in urban areas of south-central Chile exceeds air quality standards. AIR QUALITY, ATMOSPHERE & HEALTH 2017; 10:653-667. [PMID: 0 DOI: 10.1007/s11869-017-0459-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
26
|
Pozo K, Oyola G, Estellano VH, Harner T, Rudolph A, Prybilova P, Kukucka P, Audi O, Klánová J, Metzdorff A, Focardi S. Persistent Organic Pollutants (POPs) in the atmosphere of three Chilean cities using passive air samplers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 586:107-114. [PMID: 28063657 DOI: 10.1016/j.scitotenv.2016.11.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 11/08/2016] [Accepted: 11/09/2016] [Indexed: 06/06/2023]
Abstract
In this study passive air samplers containing polyurethane foam (PUF) disks were deployed in three cities across Chile; Santiago (STG) (n=5, sampling sites), Concepciόn (CON) (n=6) and Temuco (TEM) (n=6) from 2008 to 2009. Polychlorinated biphenyls (PCBs) (7 indicator congeners), chlorinated pesticides hexachlorocyclohexanes (HCHs), dichlorodiphenyl trichloroethanes (DDTs) and flame retardants such as polybrominated diphenyl ethers (PBDEs) were determined by gas chromatography coupled mass spectrometry (GC/MS). A sampling rate (R) typical of urban sites (4m3/day) was used to estimate the atmospheric concentrations of individual compounds. PCB concentrations in the air (pg/m3) ranged from ~1-10 (TEM), ~1-40 (STG) and 4-30 (CON). Higher molecular weight PCBs (PCB-153, -180) were detected at industrial sites (in Concepción). The HCHs showed a prevalence of γ-HCH across all sites, indicative of inputs from the use of lindane but a limited use of technical HCHs in Chile. DDTs were detected with a prevalence of p,p'-DDE accounting for ~50% of the total DDTs. PBDE concentrations in air (pg/m3) ranged from 1 to 55 (STG), 0.5 to 20 (CON) and from 0.4 to 10 (TEM), and were generally similar to those reported for many other urban areas globally. The pattern of PBDEs was different among the three cities; however, PBDE-209 was dominant at most of the sites. These results represent one of the few assessments of air concentrations of POPs across different urban areas within the same country. These data will support Chilean commitments as a signatory to the Stockholm Convention on POPs and for reporting as a member country of the Group of Latin America and Caribbean Countries (GRULAC) region.
Collapse
Affiliation(s)
- Karla Pozo
- Universidad Católica de la Santísima Concepción, Facultad de Ciencias, Concepción, Chile; Universidad Católica de la Santísima Concepción, Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Concepción, Chile; Masaryk University, Faculty of Science, Research Center for Toxic Compounds in the Environment (RECETOX), Brno, Czech Republic; Universitá degli Studi di Siena, Dipartimento Scienze fisiche, della Terra e dell'ambiente, Siena, Italy.
| | - Germán Oyola
- Ministery of the Environment (MMA), Air Quality Division and Climate change, Santiago, Chile
| | - Victor H Estellano
- Universitá degli Studi di Siena, Dipartimento Scienze fisiche, della Terra e dell'ambiente, Siena, Italy
| | - Tom Harner
- Air Quality Processes Research Section, Environment and Climate Change Canada, Toronto, ON, Canada
| | - Anny Rudolph
- Universidad Católica de la Santísima Concepción, Facultad de Ciencias, Concepción, Chile
| | - Petra Prybilova
- Masaryk University, Faculty of Science, Research Center for Toxic Compounds in the Environment (RECETOX), Brno, Czech Republic
| | - Petr Kukucka
- Masaryk University, Faculty of Science, Research Center for Toxic Compounds in the Environment (RECETOX), Brno, Czech Republic
| | - Ondrej Audi
- Masaryk University, Faculty of Science, Research Center for Toxic Compounds in the Environment (RECETOX), Brno, Czech Republic
| | - Jana Klánová
- Masaryk University, Faculty of Science, Research Center for Toxic Compounds in the Environment (RECETOX), Brno, Czech Republic
| | - America Metzdorff
- Universidad Católica de la Santísima Concepción, Facultad de Ciencias, Concepción, Chile; Universitá degli Studi di Siena, Dipartimento Scienze fisiche, della Terra e dell'ambiente, Siena, Italy
| | - Silvano Focardi
- Universitá degli Studi di Siena, Dipartimento Scienze fisiche, della Terra e dell'ambiente, Siena, Italy
| |
Collapse
|
27
|
Kasurinen S, Jalava PI, Happo MS, Sippula O, Uski O, Koponen H, Orasche J, Zimmermann R, Jokiniemi J, Hirvonen MR. Particulate emissions from the combustion of birch, beech, and spruce logs cause different cytotoxic responses in A549 cells. ENVIRONMENTAL TOXICOLOGY 2017; 32:1487-1499. [PMID: 27678477 DOI: 10.1002/tox.22369] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/05/2016] [Accepted: 09/10/2016] [Indexed: 05/10/2023]
Abstract
According to the World Health Organization particulate emissions from the combustion of solid fuels caused more than 110,000 premature deaths worldwide in 2010. Log wood combustion is the most prevalent form of residential biomass heating in developed countries, but it is unknown how the type of wood logs used in furnaces influences the chemical composition of the particulate emissions and their toxicological potential. We burned logs of birch, beech and spruce, which are used commonly as firewood in Central and Northern Europe in a modern masonry heater, and compared them to the particulate emissions from an automated pellet boiler fired with softwood pellets. We determined the chemical composition (elements, ions, and carbonaceous compounds) of the particulate emissions with a diameter of less than 1 µm and tested their cytotoxicity, genotoxicity, inflammatory potential, and ability to induce oxidative stress in a human lung epithelial cell line. The chemical composition of the samples differed significantly, especially with regard to the carbonaceous and metal contents. Also the toxic effects in our tested endpoints varied considerably between each of the three log wood combustion samples, as well as between the log wood combustion samples and the pellet combustion sample. The difference in the toxicological potential of the samples in the various endpoints indicates the involvement of different pathways of toxicity depending on the chemical composition. All three emission samples from the log wood combustions were considerably more toxic in all endpoints than the emissions from the pellet combustion. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1487-1499, 2017.
Collapse
Affiliation(s)
- Stefanie Kasurinen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Pasi I Jalava
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Mikko S Happo
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Olli Sippula
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
- HICE-Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health-Aerosols and Health, German Research Center for Environmental Health, Helmholtz Association, München, Germany
| | - Oskari Uski
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Hanna Koponen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jürgen Orasche
- HICE-Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health-Aerosols and Health, German Research Center for Environmental Health, Helmholtz Association, München, Germany
- Joint Mass Spectrometry Center, Cooperation Group Comprehensive Molecular Analytics, German Research Center for Environmental Health, Helmholtz Zentrum München, Germany
| | - Ralf Zimmermann
- HICE-Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health-Aerosols and Health, German Research Center for Environmental Health, Helmholtz Association, München, Germany
- Joint Mass Spectrometry Center, Cooperation Group Comprehensive Molecular Analytics, German Research Center for Environmental Health, Helmholtz Zentrum München, Germany
- Department of Analytical and Technical Chemistry, Institute of Chemistry, University of Rostock, Rostock, Germany
| | - Jorma Jokiniemi
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Maija-Riitta Hirvonen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| |
Collapse
|
28
|
Cereceda-Balic F, Toledo M, Vidal V, Guerrero F, Diaz-Robles LA, Petit-Breuilh X, Lapuerta M. Emission factors for PM 2.5, CO, CO 2, NO x, SO 2 and particle size distributions from the combustion of wood species using a new controlled combustion chamber 3CE. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 584-585:901-910. [PMID: 28189303 DOI: 10.1016/j.scitotenv.2017.01.136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/14/2016] [Accepted: 01/19/2017] [Indexed: 06/06/2023]
Abstract
The objective of this research was to determine emission factors (EF) for particulate matter (PM2.5), combustion gases and particle size distribution generated by the combustion of Eucalyptus globulus (EG), Nothofagus obliqua (NO), both hardwoods, and Pinus radiata (PR), softwood, using a controlled combustion chamber (3CE). Additionally, the contribution of the different emissions stages associated with the combustion of these wood samples was also determined. Combustion experiments were performed using shaving size dried wood (0% humidity). The emission samples were collected with a tedlar bag and sampling cartridges containing quartz fiber filters. High reproducibility was achieved between experiment repetitions (CV<10%, n=3). The EF for PM2.5 was 1.06gkg-1 for EG, 1.33gkg-1 for NO, and 0.84gkg-1 for PR. Using a laser aerosol spectrometer (0.25-34μm), the contribution of particle emissions (PM2.5) in each stage of emission process (SEP) was sampled in real time. Particle size of 0.265μm were predominant during all stages, and the percentages emitted were PR (33%), EG (29%), and NO (21%). The distributions of EF for PM2.5 in pre-ignition, flame and smoldering stage varied from predominance of the flame stage for PR (77%) to predominance of the smoldering stage for NO (60%). These results prove that flame phase is not the only stage contributing to emissions and on the contrary, pre-ignition and in especial post-combustion smoldering have also very significant contributions. This demonstrates that particle concentrations measured only in stationary state during flame stage may cause underestimation of emissions.
Collapse
Affiliation(s)
- Francisco Cereceda-Balic
- Environmental Chemistry Laboratory (LQA), Center for Environmental Technologies (CETAM), Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile; Department of Chemistry, Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile.
| | - Mario Toledo
- Environmental Chemistry Laboratory (LQA), Center for Environmental Technologies (CETAM), Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile; Department of Mechanical Engineering, Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile; Department of Chemical Engineering, Universidad de Santiago de Chile, Chile
| | - Victor Vidal
- Environmental Chemistry Laboratory (LQA), Center for Environmental Technologies (CETAM), Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile; Department of Chemistry, Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile
| | - Fabian Guerrero
- Environmental Chemistry Laboratory (LQA), Center for Environmental Technologies (CETAM), Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile
| | - Luis A Diaz-Robles
- Department of Mechanical Engineering, Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso, Chile; Department of Chemical Engineering, Universidad de Santiago de Chile, Chile
| | | | - Magin Lapuerta
- E.T.S. Ingenieros Industriales, Universidad de Castilla-La Mancha, Ciudad Real, 13001, Spain
| |
Collapse
|
29
|
Luong LMT, Phung D, Sly PD, Morawska L, Thai PK. The association between particulate air pollution and respiratory admissions among young children in Hanoi, Vietnam. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 578:249-255. [PMID: 27507084 DOI: 10.1016/j.scitotenv.2016.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/02/2016] [Accepted: 08/03/2016] [Indexed: 05/28/2023]
Abstract
While the effects of ambient air pollution on health have been studied extensively in many developed countries, few studies have been conducted in Vietnam, where the population is exposed to high levels of airborne particulate matter. The aim of our study was to examine the short-term effects of PM10, PM2.5, and PM1 on respiratory admissions among young children in Hanoi. Data on daily admissions from the Vietnam National Hospital of Paediatrics and daily records of PM10, PM2.5, PM1 and other confounding factors as NO2, SO2, CO, O3 and temperature were collected from September 2010 to September 2011. A time-stratified case-crossover design with individual lag model was applied to evaluate the associations between particulate air pollution and respiratory admissions. Significant effects on daily hospital admissions for respiratory disease were found for PM10, PM2.5 and PM1. An increase in 10μg/m3 of PM10, PM2.5 or PM1 was associated with an increase in risk of admission of 1.4%, 2.2% or 2.5% on the same day of exposure, respectively. No significant difference between the effects on males and females was found in the study. The study demonstrated that infants and young children in Hanoi are at increased risk of respiratory admissions due to the high level of airborne particles in the city's ambient air.
Collapse
Affiliation(s)
- Ly M T Luong
- School of Medicine, The University of Queensland, Australia; Children's Health and Environment Program, The University of Queensland, Australia; Faculty of Environmental Sciences, VNU University of Science, Vietnam.
| | - Dung Phung
- Centre for Environment and Population Health, Griffith University, Australia
| | - Peter D Sly
- Children's Health and Environment Program, The University of Queensland, Australia
| | - Lidia Morawska
- International Laboratory for Air Quality & Health, Queensland University of Technology, Australia
| | - Phong K Thai
- International Laboratory for Air Quality & Health, Queensland University of Technology, Australia.
| |
Collapse
|
30
|
Adetona O, Reinhardt TE, Domitrovich J, Broyles G, Adetona AM, Kleinman MT, Ottmar RD, Naeher LP. Review of the health effects of wildland fire smoke on wildland firefighters and the public. Inhal Toxicol 2016; 28:95-139. [PMID: 26915822 DOI: 10.3109/08958378.2016.1145771] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Each year, the general public and wildland firefighters in the US are exposed to smoke from wildland fires. As part of an effort to characterize health risks of breathing this smoke, a review of the literature was conducted using five major databases, including PubMed and MEDLINE Web of Knowledge, to identify smoke components that present the highest hazard potential, the mechanisms of toxicity, review epidemiological studies for health effects and identify the current gap in knowledge on the health impacts of wildland fire smoke exposure. Respiratory events measured in time series studies as incidences of disease-caused mortality, hospital admissions, emergency room visits and symptoms in asthma and chronic obstructive pulmonary disease patients are the health effects that are most commonly associated with community level exposure to wildland fire smoke. A few recent studies have also determined associations between acute wildland fire smoke exposure and cardiovascular health end-points. These cardiopulmonary effects were mostly observed in association with ambient air concentrations of fine particulate matter (PM2.5). However, research on the health effects of this mixture is currently limited. The health effects of acute exposures beyond susceptible populations and the effects of chronic exposures experienced by the wildland firefighter are largely unknown. Longitudinal studies of wildland firefighters during and/or after the firefighting career could help elucidate some of the unknown health impacts of cumulative exposure to wildland fire smoke, establish occupational exposure limits and help determine the types of exposure controls that may be applicable to the occupation.
Collapse
Affiliation(s)
- Olorunfemi Adetona
- a Department of Environmental Health Science , College of Public Health, University of Georgia , Athens , GA , USA .,b Division of Environmental Health Sciences , College of Public Health, the Ohio State University , Columbus , OH , USA
| | - Timothy E Reinhardt
- c AMEC Foster Wheeler Environment & Infrastructure, Inc , Seattle , WA , USA
| | - Joe Domitrovich
- d USDA Forest Service, Missoula Technology and Development Center , Missoula , MT , USA
| | - George Broyles
- e SDA Forest Service, San Dimas Technology and Development Center , San Dimas , CA , USA
| | - Anna M Adetona
- a Department of Environmental Health Science , College of Public Health, University of Georgia , Athens , GA , USA
| | - Michael T Kleinman
- f Center for Occupational and Environmental Health, University of California , Irvine , CA , USA , and
| | - Roger D Ottmar
- g USDA Forest Service, Pacific Northwest Research Station , Seattle , WA , USA
| | - Luke P Naeher
- a Department of Environmental Health Science , College of Public Health, University of Georgia , Athens , GA , USA
| |
Collapse
|
31
|
Abstract
BACKGROUND Chile has recently been reclassified by the World Bank from an upper-middle-income country to a high-income country. There has been great progress in the last 20 to 30 years in relation to air and water pollution in Chile. Yet after 25 years of unrestrained growth, there remain clear challenges posed by air and water pollution, as well as climate change. OBJECTIVE The aim of this study was to review environmental health in Chile. METHODS In late 2013, a 3-day workshop on environmental health was held in Santiago, Chile, bringing together researchers and government policymakers. As a follow-up to that workshop, here we review the progress made in environmental health in the past 20 to 30 years and discuss the challenges of the future. We focus on air and water pollution and climate change, which we believe are among the most important areas of environmental health in Chile. RESULTS Air pollution in some cities remains among the highest in the continent. Potable water is generally available, but weak state supervision has led to serious outbreaks of infectious disease and ongoing issues with arsenic exposure in some regions. Climate change modeling in Chile is quite sophisticated, and a number of the impacts of climate change can be reasonably predicted in terms of which areas of the country are most likely to be affected by increased temperature and decreased availability of water, as well as expansion of vector territory. Some health effects, including changes in vector-borne diseases and excess heat mortality, can be predicted. However, there has yet to be an integration of such research with government planning. CONCLUSIONS Although great progress has been made, currently there are a number of problems. We suspect that the Chilean experience in environmental health may be of some use for other Latin American countries with rapid economic development.
Collapse
|
32
|
Bravo-Linares C, Ovando-Fuentealba L, Orellana-Donoso S, Villenas-Fernández K, Hernández-Millán M, Mudge SM, Pinaud-Mendoza JP, Loyola-Sepulveda R. Source Apportionment of PAHs in Airborne Particulates (PM2.5) in Southern Chile. Polycycl Aromat Compd 2016. [DOI: 10.1080/10406638.2016.1238400] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Claudio Bravo-Linares
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Luis Ovando-Fuentealba
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Sandra Orellana-Donoso
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Karla Villenas-Fernández
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | | | | | | | - Rodrigo Loyola-Sepulveda
- Laboratorio de Oceanografía Química, Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| |
Collapse
|
33
|
Li N, Georas S, Alexis N, Fritz P, Xia T, Williams MA, Horner E, Nel A. A work group report on ultrafine particles (American Academy of Allergy, Asthma & Immunology): Why ambient ultrafine and engineered nanoparticles should receive special attention for possible adverse health outcomes in human subjects. J Allergy Clin Immunol 2016; 138:386-96. [PMID: 27130856 DOI: 10.1016/j.jaci.2016.02.023] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 01/30/2016] [Accepted: 02/24/2016] [Indexed: 01/08/2023]
Abstract
Ultrafine particles (UFPs) are airborne particulates of less than 100 nm in aerodynamic diameter. Examples of UFPs are diesel exhaust particles, products of cooking, heating, and wood burning in indoor environments, and, more recently, products generated through the use of nanotechnology. Studies have shown that ambient UFPs have detrimental effects on both the cardiovascular and respiratory systems, including a higher incidence of atherosclerosis and exacerbation rate of asthma. UFPs have been found to alter in vitro and in vivo responses of the immune system to allergens and can also play a role in allergen sensitization. The inflammatory properties of UFPs can be mediated by a number of different mechanisms, including the ability to produce reactive oxygen species, leading to the generation of proinflammatory cytokines and airway inflammation. In addition, because of their small size, UFPs also have unique distribution characteristics in the respiratory tree and circulation and might be able to alter cellular function in ways that circumvent normal signaling pathways. Additionally, UFPs can penetrate intracellularly and potentially cause DNA damage. The recent advances in nanotechnology, although opening up new opportunities for the advancement of technology and medicine, could also lead to unforeseen adverse health effects in exposed human subjects. Further research is needed to clarify the safety of nanoscale particles, as well as the elucidation of the possible beneficial use of these particulates to treat disease.
Collapse
Affiliation(s)
- Ning Li
- Department of Pathology & Diagnostic Investigation, CVM, Michigan State University, East Lansing, Mich.
| | - Steve Georas
- Department of Medicine, University of Rochester School of Medicine, Rochester, NY
| | - Neil Alexis
- Center for Environmental Medicine and Lung Biology, University of North Carolina, Chapel Hill, NC
| | | | - Tian Xia
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, Los Angeles, Calif
| | - Marc A Williams
- US Army Public Health Command, Toxicology Portfolio, Health Effects Research Program, Aberdeen Proving Ground, Aberdeen, Md
| | | | - Andre Nel
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, Los Angeles, Calif.
| |
Collapse
|
34
|
Heinzerling A, Hsu J, Yip F. Respiratory Health Effects of Ultrafine Particles in Children: A Literature Review. WATER, AIR, AND SOIL POLLUTION 2016; 227:32. [PMID: 26783373 PMCID: PMC4714792 DOI: 10.1007/s11270-015-2726-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
By convention, airborne particles ≤0.1 μm (100 nm) are defined as ultrafine particles (UFPs). UFPs can comprise a large number of particles in particulate matter with aerodynamic diameters ≤2.5 μm (PM2.5). Despite the documented respiratory health effects of PM2.5 and concerns that UFPs might be more toxic than larger particular matter, the effects of UFPs on the respiratory system are not well-described. Even less is known about the respiratory health effects of UFPs among particularly vulnerable populations including children. We reviewed studies examining respiratory health effects of UFPs in children and identified 12 relevant articles. Most (8/12) studies measured UFP exposure using central ambient monitors, and we found substantial heterogeneity in UFP definitions and study designs. No long-term studies were identified. In single pollutant models, UFPs were associated with incident wheezing, current asthma, lower spirometric values, and asthma-related emergency department visits among children. Also, higher exhaled nitric oxide levels were positively correlated with UFP dose among children with asthma or allergy to house dust mites in 1 study. Multivariate models accounting for potential co-pollutant confounding yielded no statistically significant results. Although evidence for a relationship between UFPs and children's respiratory is accumulating, the literature remains inconclusive. Interpretation of existing data is constrained by study heterogeneity, limited accounting for UFP spatial variation, and lack of significant findings from multi-pollutant models.
Collapse
Affiliation(s)
- Amy Heinzerling
- Department of Medicine, University of California, San Francisco, 505 Parnassus Ave, Moffitt Room 987, San Francisco, CA, 94143, USA
| | - Joy Hsu
- Epidemic Intelligence Service, Office of Public Health Scientific Services, Centers for Disease Control and Prevention, 4770 Buford Highway, Mailstop F-60, Atlanta, GA, 30341, USA
| | - Fuyuen Yip
- Air Pollution and Respiratory Health Branch, Division of Environmental Hazards and Health Effects, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Highway, Mailstop F-60, Atlanta, GA, 30341, USA
| |
Collapse
|
35
|
Pino-Cortés E, Díaz-Robles LA, Cubillos F, Fu JS, Vergara-Fernández A. Sensitivity analysis of biodiesel blends on Benzo[a]pyrene and main emissions using MOVES: A case study in Temuco, Chile. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 537:352-359. [PMID: 26282769 DOI: 10.1016/j.scitotenv.2015.07.143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 07/02/2015] [Accepted: 07/28/2015] [Indexed: 06/04/2023]
Abstract
Temuco is one of the most highly wood-smoke polluted cities in Chile; however, the diesel mobile sources are growing very fast in the past 10 years and so far very few studies have been done. The main goal of this research was to develop a 2013 emission inventory of criteria pollutants and Benzo[a]pyrene (BaP) and to evaluate the use of six biodiesel blends of 0%, 1%, 4%, 8%, 12%, and 20% by volume of fuel in diesel motors from the vehicle fleet within the mentioned areas using the Motor Vehicle Emission Simulator (MOVES). Input parameters for the base year 2005 were estimated to implement and adapt the model in Chile, while results of NOx, PM10, PM2.5, NH3, CO2 equivalent and SO2 were compared with the Chilean Emission Inventory estimated by the model "Methodology for the Calculation of Vehicle Emissions." The 2013 emissions reduced with respect to 2005, in the majority of the contaminants analyzed, despite the 47% increase in the annual miles traveled. Using biodiesel blends, an emission reduction was estimated at up to 15% in particulate matter, BaP, and CO for the year 2013, as well as an increment of 2% in NOx emissions, attributed to low sulfur content (50 ppm) in the diesel and the antiquity of the vehicle fleet. The results obtained gave evidence of the influence of the biodiesel use in the pollutant emissions to improve the Chilean air quality, as well as providing a strategy for this air quality management.
Collapse
Affiliation(s)
- Ernesto Pino-Cortés
- Departamento de Ingeniería Química, Universidad de Santiago de Chile, Chile.
| | - Luis A Díaz-Robles
- Departamento de Ingeniería Química, Universidad de Santiago de Chile, Chile
| | - Francisco Cubillos
- Departamento de Ingeniería Química, Universidad de Santiago de Chile, Chile
| | - Joshua S Fu
- Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, TN, USA
| | | |
Collapse
|
36
|
Toro A R, Campos C, Molina C, Morales S RGE, Leiva-Guzmán MA. Accuracy and reliability of Chile's National Air Quality Information System for measuring particulate matter: Beta attenuation monitoring issue. ENVIRONMENT INTERNATIONAL 2015; 82:101-109. [PMID: 25796098 DOI: 10.1016/j.envint.2015.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 02/23/2015] [Indexed: 06/04/2023]
Abstract
A critical analysis of Chile's National Air Quality Information System (NAQIS) is presented, focusing on particulate matter (PM) measurement. This paper examines the complexity, availability and reliability of monitoring station information, the implementation of control systems, the quality assurance protocols of the monitoring station data and the reliability of the measurement systems in areas highly polluted by particulate matter. From information available on the NAQIS website, it is possible to confirm that the PM2.5 (PM10) data available on the site correspond to 30.8% (69.2%) of the total information available from the monitoring stations. There is a lack of information regarding the measurement systems used to quantify air pollutants, most of the available data registers contain gaps, almost all of the information is categorized as "preliminary information" and neither standard operating procedures (operational and validation) nor assurance audits or quality control of the measurements are reported. In contrast, events that cause saturation of the monitoring detectors located in northern and southern Chile have been observed using beta attenuation monitoring. In these cases, it can only be concluded that the PM content is equal to or greater than the saturation concentration registered by the monitors and that the air quality indexes obtained from these measurements are underestimated. This occurrence has been observed in 12 (20) public and private stations where PM2.5 (PM10) is measured. The shortcomings of the NAQIS data have important repercussions for the conclusions obtained from the data and for how the data are used. However, these issues represent opportunities for improving the system to widen its use, incorporate comparison protocols between equipment, install new stations and standardize the control system and quality assurance.
Collapse
Affiliation(s)
- Richard Toro A
- Center for Environmental Sciences and Chemistry Department, Faculty of Sciences, University of Chile, Las Palmeras 3425, Ñuñoa, Santiago de Chile, Chile
| | - Claudia Campos
- Center for Environmental Sciences and Chemistry Department, Faculty of Sciences, University of Chile, Las Palmeras 3425, Ñuñoa, Santiago de Chile, Chile
| | - Carolina Molina
- Center for Environmental Sciences and Chemistry Department, Faculty of Sciences, University of Chile, Las Palmeras 3425, Ñuñoa, Santiago de Chile, Chile
| | - Raul G E Morales S
- Center for Environmental Sciences and Chemistry Department, Faculty of Sciences, University of Chile, Las Palmeras 3425, Ñuñoa, Santiago de Chile, Chile
| | - Manuel A Leiva-Guzmán
- Center for Environmental Sciences and Chemistry Department, Faculty of Sciences, University of Chile, Las Palmeras 3425, Ñuñoa, Santiago de Chile, Chile.
| |
Collapse
|
37
|
Pozo K, Estellano VH, Harner T, Diaz-Robles L, Cereceda-Balic F, Etcharren P, Pozo K, Vidal V, Guerrero F, Vergara-Fernández A. Assessing Polycyclic Aromatic Hydrocarbons (PAHs) using passive air sampling in the atmosphere of one of the most wood-smoke-polluted cities in Chile: The case study of Temuco. CHEMOSPHERE 2015; 134:475-481. [PMID: 26022137 DOI: 10.1016/j.chemosphere.2015.04.077] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 04/23/2015] [Accepted: 04/25/2015] [Indexed: 06/04/2023]
Abstract
This study addresses human health concerns in the city of Temuco that are attributed to wood smoke and related pollutants associated with wood burning activities that are prevalent in Temuco. Polycyclic Aromatic Hydrocarbons (PAHs) were measured in air across urban and rural sites over three seasons in Temuco using polyurethane foam (PUF) disk passive air samplers (PUF-PAS). Concentrations of ΣPAHs (15 congeners) in air ranged from BDL to ∼70 ng m(-3) and were highest during the winter season, which is attributed to emissions from residential heating by wood combustion. The results for all three seasons showed that the PAH plume was widespread across all sites including rural sites on the outskirts of Temuco. Some interesting variations were observed between seasons in the composition of PAHs, which were attributed to differences in seasonal point sources. A comparison of the PAH composition in the passive samples with active samples (gas+particle phase) from the same site revealed similar congener profiles. Overall, the study demonstrated that the PUF disk passive air sampler provides a simple approach for measuring PAHs in air and for tracking effectiveness of pollution control measures in urban areas in order to improve public health.
Collapse
Affiliation(s)
- Karla Pozo
- RECETOX Research Centre for Toxic Compounds in the Environment, Masaryk University, Kamenice 3/126, 625 00 Brno, Czech Republic; Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy; Facultad de Ciencias, Universidad Católica Santísima Concepción, Concepción, Chile.
| | - Victor H Estellano
- Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy
| | - Tom Harner
- Air Quality Processes Research Section, Environment Canada, 4905 Dufferin Street, Toronto, Ontario M3H 5T4, Canada
| | - Luis Diaz-Robles
- Departamento de Ingeniería Química, Universidad de Santiago de Chile, Chile; Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
| | - Francisco Cereceda-Balic
- Centro de Tecnologías Ambientales (CETAM), Universidad Técnica Federico Santa María, Valparaíso, Chile
| | - Pablo Etcharren
- Secretaría Regional Ministerial del Ministerio del Medio Ambiente, Región de La Araucanía, Chile
| | - Katerine Pozo
- Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
| | - Victor Vidal
- Centro de Tecnologías Ambientales (CETAM), Universidad Técnica Federico Santa María, Valparaíso, Chile
| | - Fabián Guerrero
- Centro de Tecnologías Ambientales (CETAM), Universidad Técnica Federico Santa María, Valparaíso, Chile
| | | |
Collapse
|
38
|
Light ME, Anthonissen R, Maes A, Verschaeve L, Pošta M, Van Staden J. Genotoxicity testing of 3,4,5-trimethylfuran-2(5H)-one, a compound from plant-derived smoke with germination inhibitory activity. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2015; 778:1-5. [DOI: 10.1016/j.mrgentox.2014.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 12/17/2014] [Accepted: 12/23/2014] [Indexed: 10/24/2022]
|