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Tischer C, Gascon M, Fernández-Somoano A, Tardón A, Lertxundi Materola A, Ibarluzea J, Ferrero A, Estarlich M, Cirach M, Vrijheid M, Fuertes E, Dalmau-Bueno A, Nieuwenhuijsen MJ, Antó JM, Sunyer J, Dadvand P. Urban green and grey space in relation to respiratory health in children. Eur Respir J 2017. [PMID: 28642307 DOI: 10.1183/13993003.02112-2015] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We assessed the effect of three different indices of urban built environment on allergic and respiratory conditions.This study involved 2472 children participating in the ongoing INMA birth cohort located in two bio-geographic regions (Euro-Siberian and Mediterranean) in Spain. Residential surrounding built environment was characterised as 1) residential surrounding greenness based on satellite-derived normalised difference vegetation index (NDVI), 2) residential proximity to green spaces and 3) residential surrounding greyness based on urban land use patterns. Information on wheezing, bronchitis, asthma and allergic rhinitis up to age 4 years was obtained from parent-completed questionnaires. Logistic regression and generalised estimating equation modelling were performed.Among children from the Euro-Siberian region, higher residential surrounding greenness and higher proximity to green spaces were negatively associated with wheezing. In the Mediterranean region, higher residential proximity to green spaces was associated with a reduced risk for bronchitis. A higher amount of residential surrounding greyness was found to increase the risk for bronchitis in this region.Associations between indices of urban residential greenness and greyness with respiratory diseases differ by region. The pathways underlying these associations require further exploration.
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Affiliation(s)
- Christina Tischer
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain .,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Mireia Gascon
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Ana Fernández-Somoano
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Dept of Medicine, University of Oviedo, Asturias, Spain
| | - Adonina Tardón
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Dept of Medicine, University of Oviedo, Asturias, Spain
| | - Aitana Lertxundi Materola
- Universidad del Pais Vasco (UPV)/Euskal Herriko Unibertsitatea (EHU), Leioa, Spain.,BIODONOSTIA Health Research Institute, San Sebastián, Spain
| | - Jesus Ibarluzea
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain.,BIODONOSTIA Health Research Institute, San Sebastián, Spain.,Subdireccion de Salud Publica y Adicciones-Gipuzkoa, San Sebastián, Spain
| | - Amparo Ferrero
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Joint Research Unit for Epidemiology and Environmental Health, FISABIO-Universitat de València-Universitat Jaume I, Valencia, Spain
| | - Marisa Estarlich
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Joint Research Unit for Epidemiology and Environmental Health, FISABIO-Universitat de València-Universitat Jaume I, Valencia, Spain
| | - Marta Cirach
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Martine Vrijheid
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Elaine Fuertes
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Albert Dalmau-Bueno
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Mark J Nieuwenhuijsen
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Josep M Antó
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Jordi Sunyer
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Payam Dadvand
- Campus MAR, Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
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52
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Emerson JB, Keady PB, Clements N, Morgan EE, Awerbuch J, Miller SL, Fierer N. High temporal variability in airborne bacterial diversity and abundance inside single-family residences. INDOOR AIR 2017; 27:576-586. [PMID: 27743387 DOI: 10.1111/ina.12347] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 10/10/2016] [Indexed: 05/14/2023]
Abstract
Our homes are microbial habitats, and although the amounts and types of bacteria in indoor air have been shown to vary substantially across residences, temporal variability within homes has rarely been characterized. Here, we sought to quantify the temporal variability in the amounts and types of airborne bacteria in homes, and what factors drive this variability. We collected filter samples of indoor and outdoor air in 15 homes over 1 year (approximately eight time points per home, two per season), and we used culture-independent DNA sequencing approaches to characterize bacterial community composition. Significant differences in indoor air community composition were observed both between homes and within each home over time. Indoor and outdoor air community compositions were not significantly correlated, suggesting that indoor and outdoor air communities are decoupled. Indoor air communities from the same home were often just as different at adjacent time points as they were across larger temporal distances, and temporal variation correlated with changes in environmental conditions, including temperature and relative humidity. Although all homes had highly variable indoor air communities, homes with the most temporally variable communities had more stable, lower average microbial loads than homes with less variable communities.
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Affiliation(s)
- J B Emerson
- Cooperative Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, CO, USA
| | - P B Keady
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO, USA
| | - N Clements
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO, USA
| | - E E Morgan
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado at Boulder, Boulder, CO, USA
| | - J Awerbuch
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO, USA
| | - S L Miller
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO, USA
| | - N Fierer
- Cooperative Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, CO, USA
- Department of Ecology and Evolutionary Biology, University of Colorado at Boulder, Boulder, CO, USA
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53
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Tham R, Katelaris CH, Vicendese D, Dharmage SC, Lowe AJ, Bowatte G, Taylor P, Burton P, Abramson MJ, Erbas B. The role of outdoor fungi on asthma hospital admissions in children and adolescents: A 5-year time stratified case-crossover analysis. ENVIRONMENTAL RESEARCH 2017; 154:42-49. [PMID: 28024227 DOI: 10.1016/j.envres.2016.12.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 11/16/2016] [Accepted: 12/18/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Some fungal spores can trigger asthma exacerbation but knowledge of which outdoor fungal spores contribute to asthma hospitalisation is limited. OBJECTIVES To examine the role of outdoor fungal spores in child and adolescent asthma hospitalisations. METHODS We conducted a bi-directional time-stratified case-crossover study of child and adolescent asthma hospitalisations over 5 years. Conditional logistic regression assessed the role of 20 fungi taxa (Same day [L0] and lagged [L1-3]) adjusted for maximum temperature, humidity and grass pollen. Strata specific effects were explored if there was evidence of effect modification by age, sex, air pollutants or grass pollen. Non-linear effects examined with Generalized Additive Models. RESULTS Of 2098 children hospitalised for asthma, 60% were boys; mean age was 5.5±3.7 years. Fungal spore counts peaked during warm months. Regression models found weak associations with Coprinus [L0,L1: OR=1.03, 1.01-1.06], Periconia [L0: OR=1.03, 1.001-1.07] and Chaetomium [L2: OR=1.08, 1.0-1.2]. Sex appeared to act as an effect modifier with girls having stronger associations with Cladosporium, Coprinus and total fungi. Older adolescent (14-18 years) hospitalisation was significantly associated with Coprinus and Ustilago/smuts. Air pollutants and grass pollen did not appear to act as effect modifiers. Non-linearity was not detected. CONCLUSION There may be associations between some outdoor fungal spores and asthma hospitalisations. Further research needed to explore whether these findings can be replicated; and examine whether fungal sensitisation and/or human rhinovirus infections are associated with stronger effects. If findings are replicated, then the need to develop predictive models for fungal spore distribution and levels may become more important.
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Affiliation(s)
- Rachel Tham
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia.
| | - Constance H Katelaris
- Western Sydney University, Department of Medicine, Immunology and Allergy, Campbelltown Hospital, Campbelltown, New South Wales, Australia.
| | - Don Vicendese
- School of Public Health, College of Science Health and Engineering, La Trobe University, Bundoora, Victoria, Australia.
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia.
| | - Adrian J Lowe
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia.
| | - Gayan Bowatte
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia.
| | - Philip Taylor
- School of Life and Environmental Sciences, Deakin University, Geelong, Victoria, Australia.
| | - Pamela Burton
- Western Sydney University, Department of Medicine, Immunology and Allergy, Campbelltown Hospital, Campbelltown, New South Wales, Australia.
| | - Michael J Abramson
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
| | - Bircan Erbas
- School of Public Health, College of Science Health and Engineering, La Trobe University, Bundoora, Victoria, Australia.
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54
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Hwang SH, Jang S, Park WM, Park JB. Concentrations and identification of culturable airborne fungi in underground stations of the Seoul metro. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20680-20686. [PMID: 27473614 DOI: 10.1007/s11356-016-7291-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 07/19/2016] [Indexed: 06/06/2023]
Abstract
The purpose of this study was to measure the culturable airborne fungi (CAF) concentrations in the underground subway stations of Seoul, Korea at two time points. This study measured the CAF concentrations in enclosed environments at 16 underground stations of the Seoul Metro in 2006 and 2013 and investigated the effects of various environmental factors, including the presence of platform screen doors, temperature, relative humidity, and number of passengers. CAF concentrations at the stations in 2006 were significantly higher than that at the same stations in 2013 (p < 0.001). Furthermore, there was a significant correlation between CAF concentration and relative humidity (r = 0.311, p < 0.05). Geotrichum and Penicillium were the predominant genera. The CAF concentrations in stations with an operating supply air were significantly higher than that in stations with no supply air (p < 0.001). Therefore, it is recommended that special attention be given to stations with clean supplied air to improve the indoor air quality of these subway stations.
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Affiliation(s)
- Sung Ho Hwang
- National Cancer Control Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, South Korea
| | - Soojin Jang
- Institut Pasteur Korea, 16 Daewangpangyo-ro 712 beon-gil Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea
| | - Wha Me Park
- Institute of Environmental and Industrial Medicine, Hanyang University, Seoul, South Korea
| | - Jae Bum Park
- Department of Occupational and Environmental Medicine, Ajou University, School of Medicine, San 5, Woncheon-dong, Yeongtong-gu, Suwon, South Korea.
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56
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Stephens B. What Have We Learned about the Microbiomes of Indoor Environments? mSystems 2016. [PMID: 27822547 DOI: 10.1128/msystems.00083-16.editor] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
The advent and application of high-throughput molecular techniques for analyzing microbial communities in the indoor environment have led to illuminating findings and are beginning to change the way we think about human health in relation to the built environment. Here I review recent studies on the microbiology of the built environment, organize their findings into 12 major thematic categories, and comment on how these studies have or have not advanced knowledge in each area beyond what we already knew from over 100 years of applying culture-based methods to building samples. I propose that while we have added tremendous complexity to the rich existing knowledge base, the practical implications of this added complexity remain somewhat elusive. It remains to be seen how this new knowledge base will change how we design, build, and operate buildings. Much more research is needed to better understand the complexity with which indoor microbiomes may affect human health in both positive and negative ways.
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Affiliation(s)
- Brent Stephens
- Department of Civil, Architectural and Environmental Engineering, Illinois Institute of Technology, Chicago, Illinois, USA
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