Indoor air最新文献

{"title":"Associations of Indoor Carbonyl and Nitrogen Dioxide Exposure With Blood Pressure Levels Among Toddlers: The Japan Environment and Children′s Study","authors":"Zin Wai Htay,&nbsp;Makiko Sekiyama,&nbsp;Yu Taniguchi,&nbsp;Nozomi Tatsuta,&nbsp;Shin Yamazaki,&nbsp;The Japan Environment and Children′s Study Group","doi":"10.1155/ina/8806085","DOIUrl":"https://doi.org/10.1155/ina/8806085","url":null,"abstract":"<p>This study is aimed at examining the association between indoor carbonyl (formaldehyde and acetaldehyde) and gaseous (nitrogen dioxide) compounds and blood pressure in toddlers aged 2 years. We analyzed the data of 4143 children from the subcohort study of the Japan Environment and Children′s Study, which comprised 5015 mother–child pairs. Indoor air pollutants were measured using passive diffusing samplers during home visits when children were 1.5 years old. Blood pressure was measured by professionals when the children were 2 years old, in accordance with the American Academy of Pediatrics guidelines. Multivariate linear mixed-effects regression models were used to examine the association between indoor air pollutants and blood pressure. We also conducted stratified analyses by season of data collection and child sex. Children in the highest and second-highest quartiles of nitrogen dioxide exposure exhibited a reduction in systolic blood pressure of 1.21 mmHg (95% confidence interval [CI] −2.24 to −0.18) and 1.01 mmHg (95% CI −1.99 to −0.02), respectively. Following correction for multiple testing, the associations between formaldehyde and acetaldehyde levels and blood pressure were not statistically significant. Early-life exposure to indoor nitrogen dioxide may be associated with blood pressure levels. These findings underscore the importance of indoor air quality regulations.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/8806085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Volatile Organic Compound Emissions and Key Drivers of Acute Inhalation Risk and Secondary Organic Aerosol Formation From Consumer Volatile Chemical Products","authors":"Fanglin Wang,&nbsp;Ka Hei Lui,&nbsp;Guoyang Lei,&nbsp;Donger Lai,&nbsp;Chung Ling Man,&nbsp;Dasa Gu,&nbsp;Zhe Wang,&nbsp;Man Nin Chan,&nbsp;Donald R. Blake,&nbsp;Kin Fai Ho","doi":"10.1155/ina/6015959","DOIUrl":"https://doi.org/10.1155/ina/6015959","url":null,"abstract":"<p>Consumer volatile chemical products (VCPs) are widely used indoors, yet their formulation-specific volatile organic compound (VOC) emissions remain poorly characterized. Here, we quantified formulation-resolved 119 VOC emission factors for four representative consumer VCPs, including cleaning products, air fresheners, hairsprays, and insecticides in Hong Kong, using dynamic chamber experiments and applied these experimentally derived emission factors to identify key species contributing to 1-h acute inhalation risk and secondary organic aerosol (SOA) formation potential. Oxygenated VOCs, monoterpenes, and liquefied petroleum gas-derived alkanes dominated emission profiles, with pronounced formulation-dependent variability. Emission factors of hairsprays and insecticides (350–641 g VOC kg⁻¹ VCP) were significantly higher than those of cleaning products and air fresheners (3.8–52 g VOC kg⁻¹ VCP), with nonwater-based formulations consistently showing emission factors 1.4–14 times higher than their water-based counterparts. Acetaldehyde and acrolein were identified as the primary drivers of 1-h acute inhalation risks, whereas monoterpenes and sesquiterpenes were identified as the key precursors driving SOA formation. Scenario analyses in Hong Kong indicated that consumer VCP use is unlikely to pose unacceptable 1-h acute inhalation risks under regulatory minimum living-condition standards. However, nonwater-based hairsprays may exceed acceptable 1-h acute inhalation risk thresholds in a typical indoor environment under poor ventilation due to elevated acetaldehyde emissions; increased ventilation substantially reduced these risks. Overall, this study provides formulation-resolved emission data and identifies key species contributing to acute inhalation risk and SOA formation potential from consumer VCPs.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/6015959","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148467313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Indoor Environmental Exposure and Multisystem Health Outcomes in Older Adults During Winter in Northern China: A Cross-Sectional Study","authors":"Ziwei Yang,&nbsp;Yang Lv,&nbsp;Hui Hui,&nbsp;Yu Wang,&nbsp;Guangcong Liu,&nbsp;Hongwei Wang,&nbsp;Qi Zhang,&nbsp;Jianjun Liu","doi":"10.1155/ina/1708234","DOIUrl":"https://doi.org/10.1155/ina/1708234","url":null,"abstract":"<p>Given older adults′ physiological vulnerabilities, compounded by prolonged indoor environmental exposure and heightened health susceptibility, a thorough investigation into the potential health impacts of indoor microenvironments, particularly during Northern China′s winter, becomes imperative. The results indicated that indoor environmental exposure was closely associated with inflammatory and immune function, hematological status, and cardiovascular health in older adults. With respect to inflammation and immunity, the direct effects of environmental factors were generally weak; however, the relevant indicators were significantly influenced by the interaction between smoking and age, suggesting that inflammatory and immune responses may be more strongly modulated by individual physiological characteristics. In terms of hematological health, particulate matter exposure may impair the oxygen-carrying capacity of the blood, whereas exposure to CO and CO₂ may further disrupt hematological homeostasis. Regarding cardiovascular health, high temperature and elevated O₃ exposure were significantly associated with increased cardiovascular burden. Further interaction analyses revealed clear multifactorial coupling in the health effects of the indoor environment. Under conditions of higher humidity, the association between formaldehyde and inflammatory/immune indicators became more pronounced; under higher temperature conditions, the adverse effect of TVOC on hematological indicators was stronger. Meanwhile, the association between PM_2.5 and cardiovascular health indicators was enhanced at higher CO₂ levels, and the cardiovascular effects of O₃ and PM_2.5 were also more evident under high-temperature conditions. This study provides a theoretical basis for precise health risk assessment and offers scientific support for developing more effective indoor environmental intervention strategies for older adults.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/1708234","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148467079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced Characterization of Associations Between VOC Exposure, Immune Markers, and Cardio-Oncologic Multimorbidity Using 13 Machine-Learning Models: Insights From NHANES 2011–2020","authors":"Yuhan Tang,&nbsp;Yingze Zhu,&nbsp;Wenjing Xiong,&nbsp;Yingcui Chen,&nbsp;Shaochun Liu,&nbsp;Xiaoxi Han,&nbsp;Qiyuan Shi,&nbsp;Wenjie Ma,&nbsp;Han Zhang,&nbsp;Zhiqi Sui,&nbsp;Hui Pang,&nbsp;Wenhui Zhao","doi":"10.1155/ina/1135003","DOIUrl":"https://doi.org/10.1155/ina/1135003","url":null,"abstract":"<div>\u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Volatile organic compounds (VOCs) are common air pollutants, but their association with the coexistence of cardiovascular disease and cancer, termed cardio-oncologic multimorbidity (COM), remains poorly understood.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We analyzed 29,604 US adults from NHANES 2011–2020 and evaluated 16 urinary VOC metabolites using complementary survey-weighted regression, mixture-based models, and machine-learning approaches.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>DHBMA, AMCC, MHBMA3, and CEMA were associated with higher odds of COM, whereas ATCA showed an inverse association. Among the evaluated machine-learning algorithms, the Extra Trees model achieved the best internal discrimination (AUC = 0.933), with age, hypertension, AMCC, and ATCA ranking among the top predictive features. Exploratory decomposition analyses suggested that higher white blood cell (WBC) counts statistically accounted for approximately 18% of the observed VOC mixture–COM association. Stronger associations were observed in the overweight subgroup.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Higher urinary levels of several VOC metabolites were associated with COM in this cross-sectional NHANES analysis. WBC-related findings were consistent with a possible role of systemic immune activation in the observed association. Because urinary VOC metabolites primarily reflect recent exposure and temporal sequence cannot be established, these findings should be interpreted cautiously and require confirmation in longitudinal studies.</p>\u0000 </section>\u0000 </div>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/1135003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148467078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Number Concentrations and Size Distributions of Chalk Particles Released During Writing and Wiping Activities in Classrooms in the Johannesburg Region","authors":"Setlamorago Jackson Mbazima,&nbsp;Sibusiso Tebogo Malindisa,&nbsp;Raeesa Moolla,&nbsp;Jitcy Saji Joseph","doi":"10.1155/ina/5395400","DOIUrl":"https://doi.org/10.1155/ina/5395400","url":null,"abstract":"<p>This study investigated the particle number concentrations (PNCs) and particle size distributions (PSDs) of chalk particles released during writing with dust-free and normal chalkands when the chalkboard was wiped with different materials. A standard paragraph was written alongside a pie chart using dust-free and normal chalk sticks, which was then erased with a chalkboard duster. A chalkboard duster, dry cloth, wet cloth and paper towels were also used to wipe the standard paragraph and pie chart written using dust-free and normal chalk. The chalk particles were measured using a TSI 3330 optical particle sizer at a flow rate of 1 L/min. The mean PNC was numerically higher when writing with dust-free chalk (2.13 ± 0.37 #/cm³) than when writing with normal chalk (2.08 ± 0.35 #/cm³); however, this difference was not statistically significant (<i>p</i> = 0.70). The mean PNC was numerically higher when wiping a paragraph written with normal chalk (14.15 ± 1.15 #/cm³) compared with dust-free chalk (13.00 ± 1.32 #/cm³); however, this difference was not statistically significant (<i>p</i> = 0.14). Paper towels showed the highest PNC when wiping paragraphs written with dust-free (18.68 ± 2.01 #/cm³) and normal chalk (19.08 ± 1.27 #/cm³), whereas a dry cloth recorded the lowest PNC for dust-free (5.76 ± 0.51 #/cm³) and normal chalk (5.22 ± 0.94 #/cm³). Writing with and wiping off dust-free and normal chalk mainly released fine particles (&lt; 4.5 <i>μ</i>m), with peaks between 1.562 and 3.752 <i>μ</i>m. The various wiping materials also released fine particles, with most peaks occurring between 1.562 and 4.672 <i>μ</i>m for both dust-free and normal chalk. Transitioning to alternative teaching tools, such as whiteboards or digital devices, is necessary to protect teachers′ health.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/5395400","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Advances in Aerogel Materials for Adsorptive Removal and Photocatalysis of VOCs in Air","authors":"Kedar Bharat Jivrakh,&nbsp;Weam S. K. Abudaqqa,&nbsp;Srinivasakannan Chandrasekar,&nbsp;Maguy Abi Jaoude,&nbsp;Spyros N. Pandis,&nbsp;Georgios N. Karanikolos,&nbsp;Nahla Alamoodi","doi":"10.1155/ina/2071248","DOIUrl":"https://doi.org/10.1155/ina/2071248","url":null,"abstract":"<p>Indoor air quality (IAQ) has become a critical global concern due to the high levels of volatile organic compounds (VOCs) emitted from various indoor sources, posing significant health risks. Adsorption and photocatalytic oxidation are established routes for VOC removal; however, their practical performance in powder form is limited by high pressure drop, catalyst agglomeration, reduced light/mass transport, and difficulty in integration with air filters. To overcome these limitations, aerogels have gained attention as supports or substrates for photocatalysts. Their highly porous, tunable three-dimensional nanostructure provides high surface area, low pressure drops, strong dispersion of active phases, and improved light and mass transfer. Consequently, aerogel-based materials enable the same photocatalytic processes to operate more effectively for indoor air purification. This work provides a comprehensive overview of recent advancements in the development and application of aerogels for gas-phase adsorption and photocatalytic degradation of VOCs. It discusses the brief advantages of aerogel materials and classifies aerogel materials in three categories: (i) metal–organic framework (MOF)-based, (ii) carbonbased, and (iii) metal oxide-based aerogels. For each category, synthesis strategies, functional enhancements, and VOC removal performance are discussed and critically evaluated. Challenges related to mechanical fragility, regeneration, scalability, and visible-light responsiveness are identified as key areas for further development. Finally, the review outlines future research directions, including the design of hybrid aerogel systems, the integration of 3D printing, visible-light active photocatalysts, and incorporation into self-cleaning devices and indoor air filters. The work is aimed at highlighting the potential of aerogels as a next-generation, energy-efficient, sustainable solution for indoor air purification.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/2071248","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation on Relevant Parameters Influencing the Separation Efficiency of Differently Charged Air Ions in Laboratory Measurements Considering Typical Indoor Air Conditions","authors":"Anne Hartmann,&nbsp;Martin Kriegel","doi":"10.1155/ina/2746034","DOIUrl":"https://doi.org/10.1155/ina/2746034","url":null,"abstract":"<p>The airborne transmission of pathogens and the pollution of outdoor and indoor air have led to increased interest in air cleaning methods. In addition to mechanical filtration, alternative methods such as ultraviolet (UV) irradiation and air ionization are gaining attention. These methods are particularly relevant when particle sources are located within the room or when an increase in airflow rate is not feasible. In the present study, a test stand was constructed to experimentally investigate the influence of different parameters on the separation efficiency of particles. Special emphasis is placed on air ions, considering negatively, bipolarly, and positively charged air ions. The measurement results show a significant influence, especially of the particle source and grounding. The particle source affected the number and composition of the particles in nearly all measurements. Generally, increased grounding improved the separation efficiency of particles under the influence of air ions, especially bipolarly charged air ions. The velocity range typically found in indoor environments (0.045–0.15 m/s) only influenced the results in some cases. The highest separation efficiency was achieved when bipolarly charged air ions were introduced. In this case, the relative particle concentration measured behind the ion source, compared to the concentration before the ion source, was reduced from 0.79 without ionization to 0.30 with bipolar ionization. Introducing only unipolarly charged air ions (either negatively or positively) led to a significant influence in some cases; however, these conditions may not be practically relevant. In future evaluations, cross-interactions between the different parameters should be considered in more detail.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/2746034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Comparative Effectiveness of Negative Pressure, N95 Respirators, and HEPA Evacuators in Reducing Aerosol Exposure During Inhalation Therapy: A High-Fidelity Simulation Study”","authors":"","doi":"10.1155/ina/9845934","DOIUrl":"https://doi.org/10.1155/ina/9845934","url":null,"abstract":"<p>Hung, Tzu-Yao, Yu, Sheng-Han, Weng, Chao-Hung, et al., Comparative Effectiveness of Negative Pressure, N95 Respirators, and HEPA Evacuators in Reducing Aerosol Exposure During Inhalation Therapy: A High-Fidelity Simulation Study, Indoor Air, 2026, 3556640, 9 pages, 2026. https://doi.org/10.1155/ina/3556640</p><p>At the time of submission, the funding acknowledgment for the Taipei City Government, Department of Health was included without a grant number, as the official project number had not yet been assigned. The correct funding statement is displayed below:</p><p>This work was supported by the Department of Health, Taipei City Government (Grant No. 11501-62-016).</p><p>We apologize for this error.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/9845934","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Species-Level Characterization of Bacterial Persistence and Pathogen-Associated Taxa in Humid Subtropical Residential Split-Type Air Conditioners Based on Dual Sampling Strategies and Full-Length 16S rRNA Sequencing","authors":"Jung-Sheng Chen,&nbsp;Huan-Yi Wu,&nbsp;Tung-Che Hung,&nbsp;Bing-Mu Hsu,&nbsp;Ming-Chih Hsieh,&nbsp;Chien-Yi Wu,&nbsp;Chin-Chia Wu,&nbsp;Bashir Hussain","doi":"10.1155/ina/7941150","DOIUrl":"https://doi.org/10.1155/ina/7941150","url":null,"abstract":"<p>Residential split-type air conditioners may harbor persistent microbial communities that are relevant to indoor hygiene, especially in cities with humid subtropical climatic backgrounds. However, species-resolved characterization remains limited because many previous studies relied on single sampling approaches and short-read taxonomic resolution. In this study, paired swab and rinse sampling combined with full-length 16S rRNA sequencing was used to characterize bacterial persistence, pathogen-associated taxa, and predicted functional potential in residential air-conditioning systems in Kaohsiung, Taiwan. Rinse sampling yielded significantly higher bacterial richness and recovered broader assemblages, whereas swab sampling revealed strong surface-associated dominance of <i>Pseudomonas fragi</i> in both housing types. In contrast, rinse samples redistributed dominance among multiple taxa, including <i>Shewanella xiamenensis</i>, <i>Sphingomonas aquatilis</i>, and <i>Flavobacterium proteolyticum</i>. Differential abundance testing further identified multiple taxa enriched in rinse samples across housing types, supporting recovery of mobilizable microbial populations. Pathogen-associated taxa were proportionally higher in swab samples, whereas rinse samples showed more distributed pathogen-associated representation. Functional prediction with FAPROTAX indicated enrichment of human pathogen-associated categories in swabs, whereas rinse communities showed broader ecological and metabolic functional repertoires. PICRUSt2 profiling further suggested enrichment of motility/chemotaxis pathways in swabs and transport/uptake functions in rinses. Together, these findings indicate that complementary swab and rinse sampling can improve species-level characterization of both surface-associated and mobilizable bacterial fractions in residential AC systems under a humid subtropical climatic context.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/7941150","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148463163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Making the Radon Potential Map of Great Britain—An Insight Into the Methodology","authors":"Zornitza Daraktchieva,&nbsp;Antonio Ferreira,&nbsp;David Rees,&nbsp;Russell Lawley","doi":"10.1155/ina/1075725","DOIUrl":"https://doi.org/10.1155/ina/1075725","url":null,"abstract":"<p>Radon is a naturally occurring radioactive gas recognised as the second largest cause of lung cancer in the UK population. Radon maps are developed to identify areas with elevated radon potential to provide protection against the health risks associated with radon exposure. An updated 25-m resolution radon potential map of Great Britain was developed using an improved methodology combining 561,000 indoor radon measurements and a hierarchy of up to 9,323 geological classifications. The radon potential for each geological classification was estimated as the percentage of homes at or above the UK radon action level of 200 Bq m⁻³. The spatial variation in radon potential was mapped across 75.7% of Great Britain using 810 combined bedrock and superficial geology classes for which 30 or more indoor radon measurements were available. A further 8.8% of Great Britain was mapped using bedrock and superficial geology classes for which a minimum of 10 measurements were available. In areas with very small numbers of radon measurements, the revised modelling used successively less complex geological classes to compile the average radon potential. These classes are based on bedrock stratigraphy with lithology, bedrock stratigraphy or bedrock lithology. The updated radon potential map of Great Britain revealed some changes in radon potential when compared with previously published maps. The number of homes in radon Affected Areas in England and Scotland increased by 3.3% and 2.1%, respectively, whereas the number in Wales decreased by 4%. These changes were determined by the updated methodology and considering the additional measurements and improved geological classifications.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2026 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/1075725","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}