Indoor air最新文献

{"title":"Evapotranspiration Performance of Vertical Indoor Greening—Influence of Indoor Climate Conditions on the Transpiration Performance of Tropical Ornamental Plants and Contribution of Greenings to Indoor Comfort in Offices","authors":"Annette Bucher,&nbsp;Elias Wolfrath,&nbsp;Christian Weiglein,&nbsp;Michaela Reim,&nbsp;Stephan Weismann","doi":"10.1155/ina/5562007","DOIUrl":"https://doi.org/10.1155/ina/5562007","url":null,"abstract":"<p>In indoor offices, it is often difficult to ensure high air quality and thermal comfort. Common problems are low relative humidity and the need for cooling. Previous research has shown that indoor greening can contribute to keeping the relative humidity and temperature at an appropriate level. In order to quantify the contribution of transpiration to evapotranspiration of vertical greening systems, various tropical ornamental plants were characterized in this study with regard to their transpiration rate and stomatal conductance under different indoor climatic parameters. Light intensity (PAR) showed a positive and air temperature a negative correlation with transpiration rate and stomatal conductance, while the dependence on relative humidity and soil moisture was not significant. Furthermore, two vertical greening systems with <i>Philodendron hederaceum</i> ‘Brasil’ were investigated in a parallel room set-up, where one room contained the greening system and the other room served as a reference. The vertical greening systems showed an evapotranspiration rate in the range of 55 to almost 100 g m⁻² h⁻¹, which increased the relative humidity from 20%–40% in the reference room to 40%–60% during the 3-week measurements in March 2023. This improved the comfort in the rooms.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/5562007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751266","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":"Association Between Indoor Ventilation Frequency and IADL Disability Among Chinese Older Adults","authors":"Xiaobing Xian,&nbsp;Xiaoli Fan,&nbsp;Xiaoyu Wang,&nbsp;Shiwei Cao,&nbsp;Xiaowei Wei,&nbsp;Yue Zhang,&nbsp;Kun Shen","doi":"10.1155/ina/7882633","DOIUrl":"https://doi.org/10.1155/ina/7882633","url":null,"abstract":"<p><b>Background:</b> Indoor air quality (IAQ) is regarded as a significant factor influencing older adults’ health, and opening windows for ventilation can help improve IAQ. This study revealed the relationship between indoor ventilation frequency (IVF) and instrumental activities of daily living (IADL) in Chinese older adults for the first time.</p><p><b>Methods:</b> Data were obtained from cross-sectional data published in the 2017–2018 Chinese Longitudinal Healthy Longevity Survey (CLHLS) database. A multifactor logistic regression model was used to analyze the association between IVF and IADL in Chinese people aged 65 and above, which was observed in different subgroups. Further propensity score matching (PSM) and three sensitivity analyses enhanced the robustness of the results.</p><p><b>Results:</b> After adjusting for all covariates, moderate and high IVF was associated with 33.8% (OR = 0.662, 95% CI: 0.507–0.864) and 42.6% (OR = 0.574, 95% CI: 0.444–0.742) reduction in the risk of having an IADL disability, compared to the low one, respectively. Among the results, significant associations were found only between IVF in summer and winter and older adults’ risk of IADL disability. Subgroup analyses showed that the association between IVF and IADL was specific in different subgroup populations. The results of the interaction analyses indicated that drinking significantly modified the relationship between IVF and IADL disability (<i>p</i> for interaction &lt; 0.05).</p><p><b>Conclusion:</b> In this nationally representative sample analysis, a higher window opening frequency for indoor ventilation was statistically significantly associated with a decrease in IADL disability among Chinese older adults. These results provide an essential basis for relevant policy development and new health intervention strategies to lower older adults’ risk of disability.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/7882633","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740527","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":"Effects of Positive Pressure Ventilation System on Indoor Particulate Matter Concentrations in a Subtropical Climate","authors":"German Hernandez,&nbsp;Rafael Borge,&nbsp;Dan Blanchon,&nbsp;Terri-Ann Berry","doi":"10.1155/ina/7602803","DOIUrl":"https://doi.org/10.1155/ina/7602803","url":null,"abstract":"<p>Air pollution negatively impacts human health, with pollutants such as PM_2.5 linked to increased mortality, respiratory infections, lung disease, heart disease, and stroke. Recent trends, such as increased building airtightness and changes in occupant behavior during the COVID-19 pandemic, highlight the need for greater attention to indoor air quality (IAQ). Mechanical ventilation (MV) systems are commonly used to improve IAQ and occupant comfort, especially in airtight homes, yet their effectiveness in humid winter conditions remains underexplored. This study examined the impact of MV, specifically positive pressure ventilation (PPV) systems, on IAQ in eight single-family homes in northern New Zealand. Data were collected over 12 weeks in winter, with 6 weeks of monitoring before and after PPV installation. Additionally, the study period overlapped with varying COVID-19 lockdown levels, enabling an assessment of how increased occupancy influenced IAQ. The findings show that PPV system installation resulted in reductions over the winter period of 68% for particulate matter (PM) concentrations (both PM_2.5 and PM₁₀) and 9% in relative humidity (RH), with no significant changes in temperature. PM_2.5 concentrations increased by an average of 56% during the COVID lockdown, potentially resulting from increased occupancy levels.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/7602803","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144714954","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":"Effects of the Light Environment in Elementary School Classrooms on Students’ Cognitive Performance and Galvanic Skin Indicators","authors":"Bo Gao,&nbsp;Yao Fu,&nbsp;Jian Gao,&nbsp;Haixiao Liu,&nbsp;Weijun Gao","doi":"10.1155/ina/3122870","DOIUrl":"https://doi.org/10.1155/ina/3122870","url":null,"abstract":"<p>Elementary school students, as primary users of classrooms, are directly affected by the lighting environment, which influences their visual comfort and cognitive performance. This study investigates the changes in cognitive performance under five classroom illumination levels to optimize lighting conditions. Cognitive performance was assessed by combining physiological measurements with a novel index: the ratio of correctness to reaction time. The results show gender-specific sensitivity to lighting, with female students being more responsive than males. By integrating subjective questionnaires and objective physiological indicators, the study identified an optimal desktop illuminance range of 600–800 lx for maximizing cognitive performance. These findings provide a practical approach for determining optimal classroom lighting based on both cognitive and physiological data.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/3122870","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705623","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":"The Impact of Indoor Total Volatile Organic Compound Exposures on Cognitive Performance in a Controlled Chamber Environment: An Experimental Study","authors":"Zeyu Zhao,&nbsp;Gesche Huebner,&nbsp;Emmanouil Bagkeris,&nbsp;Dejan Mumovic","doi":"10.1155/ina/5556849","DOIUrl":"https://doi.org/10.1155/ina/5556849","url":null,"abstract":"<p>Indoor levels of total volatile organic compounds (TVOCs) can influence students’ learning and productivity by affecting cognitive performance. To investigate whether TVOC affects cognitive performance in schools, especially in newly constructed or renovated buildings within the first 3 months, a single-blind experiment was conducted in a climate chamber. Then, 33 university students were exposed to three moderate TVOC concentrations: below 100, 1000, and 2000 <i>μ</i>g/m³, all emitted by solvent-based paint. Ventilation (30 m³/h), temperature (22°C), relative humidity (50%), lighting, and noise levels were maintained at constant values for all exposure conditions. Cognitive performance was measured through reaction speed and accuracy using a computer-based test battery that included 10 randomized tasks; all participants completed the test three times. Participants’ perceptions of the environment were investigated through pretest and posttest questionnaires. The results indicate no statistically significant differences in reaction speed or accuracy were observed between exposure to medium–low (1000) and low (100 <i>μ</i>g/m³) TVOC levels. Exposure to a medium–high level of TVOC (2000 <i>μ</i>g/m³) significantly reduced task accuracy by 4.9% compared to the low level (100 <i>μ</i>g/m³). No statistically significant effect on reaction speed was observed. Participants’ perceptions of air quality were rated significantly worse at both the 1000 and 2000 <i>μ</i>g/m³ TVOC exposure levels compared to the low level. Overall, no significant differences in cognitive performance were observed between the medium–low and low TVOC exposure levels. Both accuracy in memory tasks and well-being were negatively affected when comparing the medium–high level to the low level of TVOC. These findings highlight the critical need for monitoring and controlling TVOC levels during the early stages of construction and renovation to improve indoor air quality. Future studies could investigate a broader range of VOC sources and incorporate additional strategy-based cognitive tasks.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/5556849","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688245","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":"Association Between Exposure to Indoor Air Pollutants and Allergic Rhinitis Status Using the Korean National Health and Nutrition Examination Survey Data","authors":"Ah-Reum Jo,&nbsp;Seunghyun Lee,&nbsp;Xiaoxue Ma,&nbsp;Wanhyung Lee","doi":"10.1155/ina/1276764","DOIUrl":"https://doi.org/10.1155/ina/1276764","url":null,"abstract":"<p><b>Background:</b> Recent studies have shown that indoor air pollutants (IAPs) affect air quality and cause respiratory issues, particularly allergic rhinitis (AR). This study investigated the association between exposure to IAPs and AR risks and symptoms.</p><p><b>Methods:</b> We gathered data from 1864 individuals who responded to the 2022 Korea National Health and Nutrition Examination Survey, after excluding 116 individuals with missing data from the indoor air quality survey. Participants were categorized into AR and non-AR groups based on the history of AR. IAPs included particulate matter, carbon dioxide, formaldehyde, volatile organic compounds, benzene, toluene, ethylbenzene, xylene, styrene, and environmental tobacco smoke. Logistic regression determined the risk of AR according to a single IAP exposure level. Negative binomial regression was used to investigate the association between AR-related symptoms and number of highly exposed IAPs.</p><p><b>Results:</b> The prevalence of AR was 6%. Exposure to several IAPs was higher in the AR group. The association between individual IAP and AR risk was not significant after adjusting for covariates. The odds ratios for the diagnosis, duration, and severity of AR increased with increasing numbers of exposure to high levels of IAPs.</p><p><b>Conclusions:</b> There was no significant association with AR for each pollutant as a single exposure. However, the risk of AR-related symptoms significantly increased with the number of exposure to high levels of IAPs. These findings provide valuable insights for interventions to improve indoor air quality to mitigate the prevalence and severity of AR.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/1276764","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673130","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":"Predicting and Analyzing Indoor Air Quality in Inpatient Wards Using IoT-Based Long-Term Data and Machine Learning","authors":"Jehyun Kim,&nbsp;Seongmin Jo,&nbsp;Gihoon Kim,&nbsp;Ji-Hi Kim,&nbsp;Minki Sung","doi":"10.1155/ina/6449464","DOIUrl":"https://doi.org/10.1155/ina/6449464","url":null,"abstract":"<p>Indoor air quality (IAQ) plays a crucial role in safeguarding the health of both patients and healthcare workers in hospital environments. Accurate IAQ analysis and prediction are vital for optimizing ventilation, filtration, and other control measures to maintain a safe indoor atmosphere. This study investigates IAQ in hospital spaces by utilizing long-term data from internet of things (IoT) sensors installed in general wards and negative pressure isolation wards. Given the significant influence of outdoor air, IAQ requires continuous monitoring across different seasons and extended periods. In this study, IAQ was measured over nearly a year, capturing seasonal variations and long-term trends. Clustering algorithms were applied to identify complex patterns and detect anomalies in key IAQ parameters, including temperature, CO₂ concentration, and particulate matter 2.5 <i>μ</i>m (PM_2.5). These clustering results were then integrated into a long short-term memory (LSTM) model to enhance IAQ prediction for subsequent time steps. The findings indicate that incorporating clustering results as input variables substantially improves IAQ prediction accuracy. Notably, the root mean squared error for PM_2.5 prediction decreased from 8.51 to 3.99 when clustering results were included. This study underscores the potential of leveraging IoT sensors and machine learning techniques for real-time IAQ monitoring and forecasting in hospital settings. These insights can support the development of effective control strategies to maintain a healthy and comfortable indoor environment for both patients and healthcare workers.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/6449464","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647601","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":"Association Between House Dust Endotoxins and Increased All-Cause Mortality in Adults","authors":"Ren Zhou,&nbsp;Zongzong Quan,&nbsp;Yu Sun,&nbsp;Lei Zhang,&nbsp;Jia Yan,&nbsp;Hong Jiang","doi":"10.1155/ina/8885072","DOIUrl":"https://doi.org/10.1155/ina/8885072","url":null,"abstract":"<p><b>Background:</b> Exposure to house dust endotoxins is known to cause diseases across various organ systems; however, their effect on mortality remains unclear.</p><p><b>Objective:</b> This study is aimed at investigating the association between house dust endotoxins and mortality in US adults.</p><p><b>Methods:</b> National Health and Nutrition Examination Survey data from 2005 to 2006 were used in this study. Participants were linked to mortality data from the date of the survey through December 31, 2019. A multivariate Cox regression analysis was used to determine the association between house dust endotoxins and mortality. All analyses were performed in the overall population and across different sensitization statuses.</p><p><b>Results:</b> This cohort study included 3171 adults aged 20 years or older (weighted median age (P25–P75): 45 (32–58) years; 49.2% male). Among them, 1287 participants were sensitized to inhalant allergens. During a median follow-up of 13.8 years, 672 deaths occurred. In participants sensitized to inhalant allergens, house dust endotoxins were significantly associated with all-cause mortality. The hazard ratio (HR) comparing the highest and lowest tertiles of house dust endotoxin levels was 1.98 (95% confidence interval (CI): 1.32–2.97) for all-cause mortality. An association was observed between endotoxin concentration and cardiovascular disease mortality when analyzed as a continuous variable (HR: 1.29, 95% CI: 1.01–1.56). In nonsensitized participants, no significant association was found between house dust endotoxins and mortality.</p><p><b>Conclusion:</b> Exposure to house dust endotoxins was associated with all-cause mortality in adults sensitized to inhalant allergens.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/8885072","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647079","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":"Evaluating Thermal Adaptation in Informal UK University Study Spaces: The Role of Climate Background in Perceived Comfort","authors":"Zehra Nur Disci,&nbsp;Ranald Lawrence,&nbsp;Steve Sharples","doi":"10.1155/ina/7858493","DOIUrl":"https://doi.org/10.1155/ina/7858493","url":null,"abstract":"<p>This study evaluates thermal adaptation in informal study spaces in UK higher education (HE) buildings, investigating the role of occupants’ climate background in shaping perceived comfort. As library buildings provide a good example of an informal study space, this study was conducted in the Sydney Jones Library at the University of Liverpool. The research investigated how changes in climate history may affect thermal satisfaction in a multifunctional informal study space. The study involved recording temperature and relative humidity data in a computer room over a period of 1 year and assessing environmental conditions using an online survey. Statistical analysis showed that participants’ climate background did not affect their thermal sensation, preference or comfort results but did affect their clothing levels. It was observed that the clothing levels of participants from warmer and cooler climate backgrounds were different from those from climates similar to the Liverpool. This situation can be explained as an example of occupant behaviour to adapt to different climate conditions. The results showed that most participants rated the environment as cool and would have liked to feel warmer, suggesting that the current temperature settings should be reviewed. These temperature settings were determined according to current standards but did not meet the expectations of the occupants. Updating the current standards may therefore have implications for improving occupant comfort and saving energy across the HE building stock. This study recommends the implementation of flexible temperature control systems to increase occupant comfort and optimize energy use in university study spaces.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/7858493","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635072","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":"Inside Out: Perceptions and Realities of Ambient Pollution and Indoor Air Quality in Four Office Buildings in the United States","authors":"Elizabeth L. McCormick,&nbsp;Traci R. Rider","doi":"10.1155/ina/5706819","DOIUrl":"https://doi.org/10.1155/ina/5706819","url":null,"abstract":"<p>Despite increasing awareness of the health risks associated with long-term exposure to poor-quality indoor air, many Americans often perceive ambient (outdoor) air pollution as a more significant threat. This perception is deeply rooted in historical fears, despite modern construction practices mitigating many of these risks. Although indoor air quality has only recently gained significant attention, it is a critical determinant of occupant satisfaction, well-being, and health. This paper challenges two prevalent misconceptions about air quality in urban spaces: (1) That indoor air is always cleaner than ambient air, and (2) that poor indoor air is primarily caused by external, ambient sources. By analyzing both indoor and ambient air quality data from four urban office buildings in the US Southeast and Mid-Atlantic region (Atlanta, Charlotte, Durham, and Washington, DC) alongside qualitative feedback, the study reveals that indoor air was only categorized as better than ambient air for 59.2% of working hours during the 12-month period. While indoor air generally performed better than ambient air, significant fluctuations were observed, and in some cases, ambient air was cleaner than indoor air. Furthermore, the data showed that indoor pollution was more often influenced by internal factors, such as building materials, equipment, and occupant activities, rather than by external pollutants. The findings underscore the need for ongoing management of indoor sources of pollution, particularly in high-performance environments. This research provides a comprehensive understanding of the complex relationship between perceived and measured air quality, advocating for a more nuanced approach to improving occupant health and satisfaction in urban office environments.</p>","PeriodicalId":13529,"journal":{"name":"Indoor air","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/ina/5706819","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624670","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}