Indoor Environments最新文献_第5页

The effect of the ventilation rate on exposure to SARS-CoV-2 in a room with mixing ventilation 通风率对混合通风室内SARS-CoV-2暴露的影响

Indoor Environments Pub Date : 2025-12-01 Epub Date: 2025-10-24 DOI: 10.1016/j.indenv.2025.100129

Timothy Foat , Benjamin Higgins , Suzie Abbs , Thomas Maishman , Liam Gray , Adrian Kelsey , Simon Coldrick , Alexander Edwards , Matthew J. Ivings , Simon T. Parker , Catherine J. Noakes

{"title":"The effect of the ventilation rate on exposure to SARS-CoV-2 in a room with mixing ventilation","authors":"Timothy Foat , Benjamin Higgins , Suzie Abbs , Thomas Maishman , Liam Gray , Adrian Kelsey , Simon Coldrick , Alexander Edwards , Matthew J. Ivings , Simon T. Parker , Catherine J. Noakes","doi":"10.1016/j.indenv.2025.100129","DOIUrl":"10.1016/j.indenv.2025.100129","url":null,"abstract":"<div><div>Throughout the COVID-19 pandemic, guidance was to increase ventilation as a way to reduce the risk of transmission. While the benefits of ventilation, when it is used to supply fresh air or to remove virus laden air from a space, is indisputable, we show that in some circumstances it can also enhance the transport of virus from the infected to the uninfected. We used computational fluid dynamics to study exposure to SARS-CoV-2 from a person coughing, in a mechanically ventilated room with mixing ventilation, over short time periods. Models were run with three ventilation rates and two definitions for how the virus is distributed within different size droplets. These showed that up to 3 m from the person (the largest distance assessed in this work), the median exposure had a statistically significant increase as the ventilation rate was increased. For example, as the room air change rate was increased from 0.5h<sup>−1</sup> to 5h<sup>−1</sup>, the median exposure after 5 min increased by a factor of 7 or 134 depending on the model settings specified. The models showed that the negative impact of mixing ventilation on exposure (i.e. increased ventilation rate leading to increased exposure) reduced with time, which brings the predictions in line with the general guidance. Ventilation measures are therefore most likely to have the greatest impact on reducing transmission in spaces where people spend longer periods of time.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 4","pages":"Article 100129"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145417332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Do-it-yourself air purifiers: Educator attitudes and perceptions in a K-12 public school district 自己动手空气净化器：K-12公立学区教育工作者的态度和看法

Indoor Environments Pub Date : 2025-12-01 Epub Date: 2025-10-09 DOI: 10.1016/j.indenv.2025.100128

Jessica P. Hollenbach , Misti Levy Zamora , Floraine Evardo , Tu Anh Ngoc Nguyen , Amirul Anuar , Tyler Rogers , Kristina Wagstrom , Marina A. Creed

{"title":"Do-it-yourself air purifiers: Educator attitudes and perceptions in a K-12 public school district","authors":"Jessica P. Hollenbach , Misti Levy Zamora , Floraine Evardo , Tu Anh Ngoc Nguyen , Amirul Anuar , Tyler Rogers , Kristina Wagstrom , Marina A. Creed","doi":"10.1016/j.indenv.2025.100128","DOIUrl":"10.1016/j.indenv.2025.100128","url":null,"abstract":"<div><div>School indoor air quality (IAQ) has long been overlooked, despite its known impact on staff and student health and academic performance. In response to heightened concerns during the COVID-19 pandemic, our team partnered with a public school district (PreK–12) in Connecticut to distribute 200 low-cost, do-it-yourself Corsi-Rosenthal (C-R) box air purifiers. At the end of the 2021–2022 academic year, educators were surveyed to understand their experiences with the C-R boxes. The survey included both Likert-scale and open-ended questions. Our results show that most educators found the boxes quiet (60 %), easy to move (90 %), and durable (71 %). 31 % reported turning them off during instruction time to reduce interference with educators’ voices. Interestingly, lower-grade educators were significantly more likely than high school educators to report C-R box sound as an issue (p < 0.025). Only one third of educators believed C-R boxes were a distraction. When asked about the perceived effectiveness of C-R boxes, nearly half (48 %) were unsure, and many indicated an interest in learning more. Overall, educators reported that C-R boxes were low burden, easy to manage, not distracting, and a positive experience. Future work will focus on addressing the feedback around C-R box effectiveness, using objective tools to increase engagement and address concerns around maintenance.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 4","pages":"Article 100128"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Collocation testing of consumer-grade electronic radon sensors in Canadian homes 消费级电子氡传感器在加拿大家庭中的配置测试

Indoor Environments Pub Date : 2025-12-01 Epub Date: 2025-11-30 DOI: 10.1016/j.indenv.2025.100141

Amanda Giang, Tianyuan Li

{"title":"Collocation testing of consumer-grade electronic radon sensors in Canadian homes","authors":"Amanda Giang, Tianyuan Li","doi":"10.1016/j.indenv.2025.100141","DOIUrl":"10.1016/j.indenv.2025.100141","url":null,"abstract":"<div><div>Radon exposure is the second leading cause of lung cancer in Canada. Consumer-grade electronic radon sensors, which provide real-time results, are increasingly used by homeowners for radon monitoring. This study evaluates the short-term performance of four consumer-grade radon sensors (RadonEye, Inkbird, Spirit, and Wave) against a professional-grade instrument (RAD7) in seven different Canadian homes. In each home, testing was conducted for seven days with radon concentrations ranging from negligible to more than 2000 Bq/m<sup>3</sup>. Sensor performance was assessed using a total of six analysis methods, including linear regression, RMSE, Pearson or Spearman correlation analyses, Welch’s t-test or Mann-Whitney U-test, Bland-Altman plots, and confusion matrices. The results reveal that three of the four sensors had similar performance across most analysis methods, while one sensor had the lowest performance, possibly attributed to the short testing duration. For occupants, these sensors can be useful for quickly detecting current radon levels; however, long-term testing (90 days) with certified detectors or sensors is still recommended to ensure a reliable assessment of their radon exposure.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 4","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The association between indoor air pollution and inflammation in children – A scoping review 室内空气污染与儿童炎症之间的关系——范围综述

Indoor Environments Pub Date : 2025-09-01 Epub Date: 2025-06-08 DOI: 10.1016/j.indenv.2025.100104

Alice Oloo , Vinh Vo , P.S. Ganesh Subramanian , Vishal Verma , Brenda D. Koester , Jenna L. Riis , Naiman Khan , Sheena E. Martenies

{"title":"The association between indoor air pollution and inflammation in children – A scoping review","authors":"Alice Oloo , Vinh Vo , P.S. Ganesh Subramanian , Vishal Verma , Brenda D. Koester , Jenna L. Riis , Naiman Khan , Sheena E. Martenies","doi":"10.1016/j.indenv.2025.100104","DOIUrl":"10.1016/j.indenv.2025.100104","url":null,"abstract":"<div><div>Indoor air pollutants (IAPs) significantly contribute to the global heath burden for children, in part due to their underdeveloped physiological systems. Despite the growing evidence of the health impacts of IAPs, the association between IAP and biomarkers of inflammation, which is involved in several disease processes, remains underexplored. The main objective of this scoping review is therefore to identify, evaluate, and summarize the current body of literature on the association between IAP exposures and biomarkers of inflammation among children. Additionally, this review examines the extent to which identified studies have explored the potential role of diet, nutrition, or weight status in modifying this relationship. A scoping review of the literature was conducted in accordance with PRISMA (Preferred Reporting Items for Systematic Reviews) guidelines. Studies published in the last 20 years and that measured IAPs and inflammatory biomarkers in children under 18 years of age were included. In total, 22 studies met the inclusion criteria. Most of these studies indicated positive associations between IAPs, including particulate matter and nitrogen dioxide, and inflammatory biomarkers such as fraction exhaled of nitric oxide (FeNO), tumor necrosis factor alpha (TNF-α), and interleukin-6 (IL-6). While some studies suggested the potential modifying role of nutrition and weight status, and the findings suggests that anti-inflammatory nutrients such as omega-fatty acids can mitigate inflammation, whereas pro-inflammatory nutrients may exacerbate IAP-related inflammation, the evidence remains limited. Further research is needed to explore these relationships and their long-term health consequences.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100104"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Volatile organic compounds from topical drugs and medical products: Effects on air quality and healthcare environments 外用药物和医疗产品中的挥发性有机化合物：对空气质量和医疗环境的影响

Indoor Environments Pub Date : 2025-09-01 Epub Date: 2025-08-27 DOI: 10.1016/j.indenv.2025.100117

Amber M. Yeoman , Marvin Shaw , Martyn Ward , Thomas Warburton , Alastair C. Lewis

{"title":"Volatile organic compounds from topical drugs and medical products: Effects on air quality and healthcare environments","authors":"Amber M. Yeoman , Marvin Shaw , Martyn Ward , Thomas Warburton , Alastair C. Lewis","doi":"10.1016/j.indenv.2025.100117","DOIUrl":"10.1016/j.indenv.2025.100117","url":null,"abstract":"<div><div>Fifteen commonly used topical drugs and five medical products were evaluated using headspace Q-TOF GC/MS to assess VOCs emissions into healthcare environments and potential patient inhalation. The speciation of VOCs found in medicine products was less complex than typically found in non-medicated, cosmetic skincare products. VOCs arising from medicinal products could be classified as being related to product performance (e.g., solvent), product fragrance, and likely trace contaminants unintentionally included. The scale of emissions and resulting inhalation could be significant for products that are facially applied, and there may be some potential for wider indoor air quality effects if used regularly in poorly ventilated spaces. Emission rates from topical drugs were then quantified using SIFT-MS, focusing on the ten most abundant/commonly found species identified by Q-TOF GC/MS – 2-propanol, benzaldehyde, benzyl alcohol, cyclohexane, ethanol, menthol, methyl salicylate, phenol, and limonene and eucalyptol (representing the total of all terpene species). Emission rates were in the range 9.7 × 10<sup>−5</sup> µg s<sup>−1</sup> g <sub>[product]</sub> <sup>−1</sup> to 5.9 µg s<sup>−1</sup> g <sub>[product]</sub> <sup>−1</sup>.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100117"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144917806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Remediation of indoor environments impacted by wildfire smoke: A review of available information and research needs 受野火烟雾影响的室内环境的修复：对现有信息和研究需求的回顾

Indoor Environments Pub Date : 2025-09-01 Epub Date: 2025-07-16 DOI: 10.1016/j.indenv.2025.100112

Hugo Destaillats, Wanyu R. Chan

{"title":"Remediation of indoor environments impacted by wildfire smoke: A review of available information and research needs","authors":"Hugo Destaillats, Wanyu R. Chan","doi":"10.1016/j.indenv.2025.100112","DOIUrl":"10.1016/j.indenv.2025.100112","url":null,"abstract":"<div><div>There is growing interest in better understanding wildfire smoke contamination in the indoor environment, the associated human exposures and health impacts. Most efforts have been devoted to developing guidelines protecting occupants during a wildfire event, <em>e.g.,</em> on the proper use of building ventilation and filtration. However, there is also a need to understand the long-term impacts of wildfires on indoor contamination, and which are the most effective mitigation options. We reviewed the scientific literature and additional available documentation to identify the main chemical contaminants found in buildings impacted by wildfire smoke. Polycyclic aromatic hydrocarbons (PAHs) and trace metals have been reported on indoor surfaces and dust after exposure to smoke, and are of particular concern due to the health effects associated with continuous exposures. Described mitigation approaches included cleaning using dry and wet media, vacuuming and ozonation. While little information is available on their effectiveness in long-term removal of wildfire smoke contaminants, similar remediation methods have been described to remove other types of persistent contamination indoors, including thirdhand tobacco smoke and mold, providing a reference to predict the expected efficacy and limitations of those methods. Gaps in the available information and research needs were identified to develop a research agenda addressing wildfire smoke’s persistent contamination and mitigation options.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100112"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental investigation of the quantitative distribution of bioaerosols in public indoor spaces – A case study in Korea 公共室内空间生物气溶胶定量分布的环境调查——以韩国为例

Indoor Environments Pub Date : 2025-09-01 Epub Date: 2025-06-23 DOI: 10.1016/j.indenv.2025.100109

Ji-You Kwoun, Seok Won Kang, Yanjun Wang, Tae Jung Lee, Young Min Jo

{"title":"Environmental investigation of the quantitative distribution of bioaerosols in public indoor spaces – A case study in Korea","authors":"Ji-You Kwoun, Seok Won Kang, Yanjun Wang, Tae Jung Lee, Young Min Jo","doi":"10.1016/j.indenv.2025.100109","DOIUrl":"10.1016/j.indenv.2025.100109","url":null,"abstract":"<div><div>Bioaerosols, including airborne bacteria and fungi, are widely distributed in the indoor environments causing adverse effects on human health. Bioaerosols suspended in six types of public indoor spaces categorized by the government were investigated in 12 facilities in a large metropolitan area of Korea. A total of 245 samples provided evidence of a close dependency on indoor humidity in addition to the numbers of occupants. Childcare centers had high concentrations of bioaerosols (26 CFU/m<sup>3</sup> to 2916 CFU/m<sup>3</sup>), indicating high risk of exposure with 120.2 CFU/kg. The indoor bioaerosol level was high mostly in summer rather than winter. The results of this study provide valuable information on air quality management and microbial pollution control in urban public spaces.</div></div><div><h3>Implications and impacts</h3><div><ul><li><span>−</span><span><div>Bio-contamination of public indoor spaces is being of interests particularly in metro-cities.</div></span></li><li><span>−</span><span><div>Field identification of bioaerosol levels will help in establishing the preventive policy.</div></span></li><li><span>−</span><span><div>Consistent accumulation of field data is essential for improving the indoor environment.</div></span></li></ul></div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100109"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144481169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rethinking heat in thousands of school classrooms through continuous monitoring and novel exposure metrics 通过持续监测和新颖的暴露指标，重新思考数千所学校教室的热量

Indoor Environments Pub Date : 2025-09-01 Epub Date: 2025-06-08 DOI: 10.1016/j.indenv.2025.100105

M. Pilar Botana Martinez , Priam Dinesh Vyas , Katherine H. Walsh , Lauren Main , Lauren Bolton , Yirong Yuan , Masanao Yajima , M. Patricia Fabian

{"title":"Rethinking heat in thousands of school classrooms through continuous monitoring and novel exposure metrics","authors":"M. Pilar Botana Martinez , Priam Dinesh Vyas , Katherine H. Walsh , Lauren Main , Lauren Bolton , Yirong Yuan , Masanao Yajima , M. Patricia Fabian","doi":"10.1016/j.indenv.2025.100105","DOIUrl":"10.1016/j.indenv.2025.100105","url":null,"abstract":"<div><div>As global temperatures rise, heat exposure in classrooms is becoming a growing concern for the millions of students attending school, in particular those learning in buildings without air conditioning (AC). With limited resources and competing interests, school decision-makers need health-related data-based approaches to inform cooling solutions and prioritize investments. In collaboration with a large school district in Northeastern United States (US), we analyzed minute-level temperature data in > 3600 classrooms across 125 school buildings during the 2023 hot season. Using a first-of-its-kind commercial-grade indoor sensor network and data science methods, we quantified heat exposure through novel heat metrics capturing intensity, frequency, and duration, and characterized spatial variability within and across buildings with three types of AC. On average, intra-building temperature variability was 2.3 degrees Celsius (°C), with a maximum value of 14.3°C. On a hot day, classrooms exceeded extreme caution thresholds by 0.1 %, 1.1 %, and 8.4 % in schools with central, window, and no AC, respectively. Classrooms on the top floor were 0.3°C, 0.5°C, and 5.7°C warmer than classrooms on the first floor, for central, window, and no AC groups, respectively. Novel and traditional heat exposure metrics were weakly correlated, with implications for school rankings. Findings identified schools with the greatest cooling needs and investigated key predictors of classroom overheating. Our results underscore the need for continuous temperature monitoring in all classrooms and highlight the importance of access to mechanical cooling in locations that have historically not been prepared for extreme heat. Our work shows how data analyses informed by researcher-school partnerships can support critical climate resilience needs in schools.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100105"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving indoor air quality and mitigating health risks with sheep wool as a sustainable material 以羊毛为可持续材料，改善室内空气质量，降低健康风险

Indoor Environments Pub Date : 2025-09-01 Epub Date: 2025-07-10 DOI: 10.1016/j.indenv.2025.100111

Katrin Kabun , Karin Reinhold

{"title":"Improving indoor air quality and mitigating health risks with sheep wool as a sustainable material","authors":"Katrin Kabun , Karin Reinhold","doi":"10.1016/j.indenv.2025.100111","DOIUrl":"10.1016/j.indenv.2025.100111","url":null,"abstract":"<div><div>Sheep wool as a natural fiber is an increasingly important alternative to synthetic materials in the green economy. The study evaluates the effectiveness of sheep wool based materials in enhancing indoor air quality (IAQ) and mitigating health risks in occupational settings. Two test cabins - one with conventional synthetic materials and another with sheep wool based materials - were designed to compare the performance of these materials in terms of noise insulation, volatile organic compounds (VOC) emissions, CO<sub>2</sub> levels and humidity regulation. A survey of the room occupants' perception of the material was also carried out. Results show that sheep wool panels provide sound insulation comparable to synthetic materials, especially at mid-range frequencies. Sheep wool's natural ability to regulate humidity contributed to a more stable indoor climate, while VOC levels remained low in both cabins, below the analytical determination limit for some parameters. The Synthetic cabin showed a slightly lower VOC level. The sheep wool cabin showed more rapid CO<sub>2</sub> fluctuations, demanding further study. User surveys indicated a preference for the sheep wool cabin, with participants noting comfort and an overall more pleasant environment. This novel approach, which simultaneously measures IAQ indicators and examines the room users' perception of IAQ, shows that sheep wool based materials, being both sustainable and biodegradable, provide a healthier alternative to synthetic materials, supporting the goals of reducing health risks and promoting environmental sustainability.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100111"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimating the indoor heat stress of low-socioeconomic status households in Jalna district of Maharashtra (India) 印度马哈拉施特拉邦Jalna地区低社会经济地位家庭的室内热应力估算

Indoor Environments Pub Date : 2025-09-01 Epub Date: 2025-08-28 DOI: 10.1016/j.indenv.2025.100119

Premsagar Prakash Tasgaonkar , Priyanka Arun , Kamal Kumar Murari

{"title":"Estimating the indoor heat stress of low-socioeconomic status households in Jalna district of Maharashtra (India)","authors":"Premsagar Prakash Tasgaonkar , Priyanka Arun , Kamal Kumar Murari","doi":"10.1016/j.indenv.2025.100119","DOIUrl":"10.1016/j.indenv.2025.100119","url":null,"abstract":"<div><div>Projections regarding climate change indicate that globally, densely populated areas are poised to witness a heightened frequency of more severe and prolonged heat waves. Indoor conditions, including housing roofs, and circulation systems significantly influence the impact of heat-related issues and discomfort. Literature on heat-related vulnerability studies often lacks substantial references to these factors. This study seeks to comprehend the influence of various roof types on heat risks in a semi-arid region village in Maharashtra, India. The study uses indoor data loggers to observe temperature & relative humidity in different housing conditions. Wet-Bulb Globe Temperature (WBGT) is derived to evaluate heat-risk exposure in indoor environments. Findings reveal that dwellings with tin roofs experience higher and more prolonged heat risks compared to Reinforced Cement Concrete (RCC) or thatch roof houses. Moreover, RCC and tin roofs exhibit increased exposure during the day WBGT (5–7 °C higher during night WBGT), whereas thatched roofs display minimal daily WBGT variation, indicating robust heat resilience. Ceiling fans consistently lower indoor WBGT and thus reduce heat‑risk hours across all roof types, though their effectiveness varies by time of day and housing material. Fans offer cooling benefit in the early morning from 12 am to 10 am and late evening hours from 7 pm to 11 pm. Ceiling fans reduce indoor WBGT by approximately 1.1°C in tin‑roof houses, 1.4°C in thatched houses, and 1.5°C in RCC houses, demonstrating their pronounced cooling efficacy during these heat periods.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100119"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144917805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0