Indoor Environments最新文献

{"title":"Volatile organic compounds from topical drugs and medical products: Effects on air quality and healthcare environments","authors":"Amber M. Yeoman ,&nbsp;Marvin Shaw ,&nbsp;Martyn Ward ,&nbsp;Thomas Warburton ,&nbsp;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 × 10⁻⁵ µg s⁻¹ g _[product] ⁻¹ to 5.9 µg s⁻¹ g _[product] ⁻¹.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100117"},"PeriodicalIF":0.0,"publicationDate":"2025-08-27","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}

{"title":"Self-reported indoor climate in shared vs. private offices and its effects on headache and respiratory symptoms in Norwegian office workers","authors":"Therese Nitter Moazami ,&nbsp;Tom Sterud","doi":"10.1016/j.indenv.2025.100118","DOIUrl":"10.1016/j.indenv.2025.100118","url":null,"abstract":"<div><div>This two-wave cross-sectional study analyzed data from 7968 Norwegian office workers collected in 2016 and 2019 to investigate associations among self-reported indoor climate, headaches, and respiratory symptoms across six office types. Interaction effects between office type, indoor climate, and health outcomes were assessed, alongside a mediation analysis examining indoor climate as a mediator between office type and health outcomes. Adjusted generalized linear models (GLMs) revealed that shared offices had significantly poorer indoor climate conditions than private offices, with the highest odds reported in flexible spaces (OR = 1.72, 95 % CI: 1.41–2.09) and offices with over 24 occupants (OR = 1.57, 95 % CI: 1.27–1.93). Self-reported poor indoor climate was associated with respiratory symptoms (OR = 2.17, 95 % CI: 1.74–2.27) and headaches (OR = 1.66, 95 % CI: 1.48 – 1.86). No direct association was found between office type and health outcomes; however, mediation analysis demonstrated a significant indirect effect of office type on health outcomes via indoor climate. Interaction analysis further revealed that the association between poor indoor climate and respiratory symptoms was stronger in shared offices compared to cell offices for both respiratory symptoms (OR = 2.32 vs. OR = 1.80) and headaches (OR = 1.69 vs. OR = 1.44). In conclusion, this study demonstrates notable associations between office type, perceived indoor climate, and self-reported health outcomes. While the cross-sectional design limits the ability to determine the direction or underlying mechanisms of these associations, the results emphasize the relevance of both office layout and indoor climate quality in evaluating workplace health.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100118"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890534","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}

{"title":"Long-term impacts of energy retrofits on indoor air quality and climate – Follow-up results of a sample of Finnish apartment buildings","authors":"Virpi Leivo ,&nbsp;Minna Kempe ,&nbsp;Ulla Haverinen-Shaughnessy","doi":"10.1016/j.indenv.2025.100116","DOIUrl":"10.1016/j.indenv.2025.100116","url":null,"abstract":"<div><div>Energy retrofits can have an impact on indoor air quality and climate, particularly on temperature, humidity, and concentrations of air pollutants. Both positive and negative impacts have been identified, usually based on measurements taken quite soon (up to about one year) after the retrofits. We studied the long-term (about seven years) impacts of energy retrofits on indoor thermal conditions, ventilation rates, and CO₂ and radon concentrations during heating season in 13 Finnish apartment buildings (42 apartments) along with the occupants’ self-reported satisfaction with IAQ. High indoor temperatures and low RH were recorded in all the measurements. There were no significant changes in the night-time average CO₂ concentration (less than 700 ppm) and momentary air exchange rates (0.3–0.35 (dm³/s)/ m²) between the measurements. There was a decreasing trend in radon concentration. Seven years after the retrofit, the average radon concentration was 23 % lower than before the retrofit. Concentrations above 100 Bq/m³ were also less frequent after the retrofitting. According to the occupant questionnaire, the respondents were significantly more satisfied with IAQ about one year after the retrofits. About 7 years after the retrofit, they still appeared to be more satisfied with IAQ than before the retrofits.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100116"},"PeriodicalIF":0.0,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841612","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}

{"title":"Levels, distribution, sources and children's health risk of PBDEs in household dust from 2010 to 2022 in China","authors":"Xiaotong Zhang ,&nbsp;Wenying Zhang ,&nbsp;Tingting Liu ,&nbsp;Fengjing Song ,&nbsp;Chengyu Chen ,&nbsp;Chao Wang ,&nbsp;Weiyi Zhang ,&nbsp;Xu Han ,&nbsp;Xianliang Wang","doi":"10.1016/j.indenv.2025.100114","DOIUrl":"10.1016/j.indenv.2025.100114","url":null,"abstract":"<div><h3>Background</h3><div>Polybrominated biphenyl ethers (PBDEs) are one of the most common flame retardants in household products. Given their broad-spectrum toxicity, monitoring PBDE levels in indoor environments and assessing their potential health risks are critical for residential health risk management.</div></div><div><h3>Methods</h3><div>Based on published literature data from 2010 to 2022, the concrete raw data regarding the concentration of PBDEs in actual dust samples from true household living conditions in China were collected exhaustively from 26 peer-reviewed papers after screening. Congeners with detection rates exceeding 80 % (BDE-28, −47, −99, −100, −153, −154, −183, −209) were selected for further analysis. Household dust PBDE levels were quantified using the weighted average concentration. Seasonal and regional variations were evaluated using the Mann-Whitney U and Kruskal-Wallis H tests, while Spearman correlation analysis and exploratory factor analysis (EFA) were applied for source apportionment. Health risks to children were assessed based on estimated daily intake (EDI) via ingestion and dermal absorption, using hazard indices (HI) and carcinogenic risk (CR) models.</div></div><div><h3>Results</h3><div>The concentrations of PBDEs in household dust (HD-PBDEs)<span><span>²</span></span> in China ranged from 4.03 ng/g to 37333.58 ng/g, with a weighted average concentration of 3625.43 ng/g. The weighted average concentration was maximum in Zhejiang (27268.66 ng/g) and lowest in Shaanxi (4.03 ng/g). BDE-209 was the predominant congener of HD-PBDEs, ranging from 73.56 % to 99.78 %, followed by BDE-47 (6.84–62.08 %), BDE-99 (1.80–56.77 %), and BDE-153 (0–43.10 %). The weighted average concentrations of ∑₈PBDEs were 1419.97 ng/g in 2006–2009, 5886.15 ng/g in 2010–2014, and 1813.51 ng/g in 2015–2020. HD-PBDE concentration was significantly higher in winter than in spring and fall (<em>P</em> &lt; 0.05). Families residing in rural areas, southern regions, or near e-waste-contaminated areas exhibited higher concentrations of HD-PBDEs (<em>P</em> &lt; 0.05). Two principal components were extracted, accounting for 84.56 % of the total variance. The estimated daily intake of HD-PBDEs for children via ingestion (1.93 × 10¹ ng/kg BW/day) was higher than that via dermal absorption (8.93 ×10⁻¹ ng/kg BW/day). The non-carcinogenic risk of HD-PBDEs (1.01 ×10⁻¹) and the carcinogenic risk of BDE-209 (1.30 ×10⁻⁸) were below the standard criterion.</div></div><div><h3>Conclusions</h3><div>HD-PBDE concentrations in China ranked moderate-to-high globally, with clear regional variations. Both non-carcinogenic and carcinogenic risks of HD-PBDE exposure to Chinese children were acceptable. Future investigations should focus on longitudinal monitoring of PBDE trends in household environments and health impacts on vulnerable subpopulations.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100114"},"PeriodicalIF":0.0,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144780467","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}

{"title":"Exposure risk and source analysis of toxic metal(loid)s in indoor dust of Eastern Nigeria during COVID-19 lockdown","authors":"Chideraa Courage Offor ,&nbsp;John Kanayochukwu Nduka ,&nbsp;Henrietta Ijeoma Kelle","doi":"10.1016/j.indenv.2025.100113","DOIUrl":"10.1016/j.indenv.2025.100113","url":null,"abstract":"<div><div>Outbreak and emergency occasioned by coronavirus virus disease forcefully led to imposition of lockdown in Nigeria; a situation that consequently exposed humans to heavy metal(loid)s laden dust. Hence, this study measured the concentration of heavy metal(loid)s in indoor dust from households of three selected semi-urban areas (Rumuodomaya-Ogale, Ekwulobia and Awka) of Eastern Nigeria. Dust samples (n = 144) were collected from household’s windows and floors using clean brush, filtered, digested by standard method and analyzed for Cd, Co, Ni, Hg, As, Mn, Al, Pb, Cr, Zn, and Fe using Atomic Absorption Spectrometry (Model: Varian AA240, USA). Results show that Fe was dominant when compared to other metals assessed. Whereas the total heavy metal(loid)s concentration (THMC) of the floor dusts was higher than that of window dusts from Ekwulobia, there was no significant difference (p &gt; 0.05) in total heavy metal(loid)s level in window and floor dust of the three semi-urban areas across the months. Awka showed the least THMC in the window (1.17 – 1.52 mg kg⁻¹) and floor (1.08 – 2.35 mg kg⁻¹) dusts in comparison with Ekwulobia (window: 1.23 mg/kg to 9.05 mg kg⁻¹; floor: 1.27 mg kg⁻¹ to 9.22 mg kg⁻¹) and Rumuodomaya-Ogale (window: 1.49 – 2.70 mg kg⁻¹; floor: 1.24 – 2.23 mg kg⁻¹). The cancer and non-cancer risk of exposure to the heavy metal(loid)s dusts was insignificant while most of the heavy metal(loid)s could be related to anthropogenic origin based on the Positive Matrix Factorization and Principal Component Analysis models.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100113"},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662103","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}

{"title":"Remediation of indoor environments impacted by wildfire smoke: A review of available information and research needs","authors":"Hugo Destaillats,&nbsp;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":"2025-07-16","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}

{"title":"Improving indoor air quality and mitigating health risks with sheep wool as a sustainable material","authors":"Katrin Kabun ,&nbsp;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, CO₂ 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 CO₂ 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":"2025-07-10","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}

{"title":"An efficient method for fabricating nanofiber air filters with minimized pressure drop for effective indoor particle removal","authors":"Zhuolun Niu ,&nbsp;Chun Chen","doi":"10.1016/j.indenv.2025.100110","DOIUrl":"10.1016/j.indenv.2025.100110","url":null,"abstract":"<div><div>Electrospun nanofiber air filters can achieve high particle filtration efficiency with lower pressure drop compared with high-efficiency particulate air (HEPA) filters. Therefore, they can potentially be used for effective indoor particle removal. To support practical applications, this study proposed an efficient method for producing electrospun nanofiber air filters that achieve a minimized pressure drop while meeting the target particle filtration efficiency. Specifically, this method decoupled the influence of applied voltage and electrospinning time, enabling the identification of the optimal applied voltage to minimize pressure drop and the calculation of the electrospinning time needed to achieve the target filtration efficiency. Compared with the previous approach, this method eliminated the need to measure structural parameters, thereby significantly simplifying the optimization process. Experimental measurements were conducted to validate the feasibility of the proposed method. The results show that the proposed method can effectively achieve the target particle filtration efficiency with relative errors all less than 1% compared to the target values. Furthermore, the pressure drop of the optimized nanofiber air filters was up to 40.6% lower than that of the randomly selected filters in the verification cases. Finally, the benefits of using the optimized nanofiber air filters for indoor particle removal were numerically assessed. The results show that using the nanofiber air filters optimized by the proposed method in an air cleaner reduced indoor PM_0.3–0.4 of outdoor origin in a typical public housing apartment in Hong Kong by up to 22.7% compared to the randomly selected nanofiber air filters.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100110"},"PeriodicalIF":0.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597160","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}

{"title":"Environmental investigation of the quantitative distribution of bioaerosols in public indoor spaces – A case study in Korea","authors":"Ji-You Kwoun,&nbsp;Seok Won Kang,&nbsp;Yanjun Wang,&nbsp;Tae Jung Lee,&nbsp;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/m³ to 2916 CFU/m³), 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":"2025-06-23","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}

{"title":"Effect of Low-E glass on local skin temperature and thermal sensation in vehicle cabins under cold winter environments","authors":"Hikari Ryuzaki ,&nbsp;Yoshiichi Ozeki ,&nbsp;Akihisa Nomoto ,&nbsp;Reika Miura ,&nbsp;Kan Shindo ,&nbsp;Yasuki Moriya ,&nbsp;Hiromu Hiruma ,&nbsp;Shin-ichi Tanabe","doi":"10.1016/j.indenv.2025.100108","DOIUrl":"10.1016/j.indenv.2025.100108","url":null,"abstract":"<div><div>This study evaluated the effects of Low-E glass on the thermal environment inside a vehicle cabin under winter conditions and its impact on occupants’ thermal physiology and sensation. A human subject experiment was conducted, where participants seated near either Low-E or Normal glass and voted their local and whole-body thermal sensations. Their local skin temperatures and the thermal environment in the vehicle were measured. The plane radiant and equivalent temperatures near Low-E glass were 11.0 °C and 4.5 °C higher, respectively, than near Normal glass. Local skin temperatures decreased less in the Low-E condition compared to the Normal condition. Local thermal sensations were generally warmer in the Low-E condition, particularly for the cheek and hand, even though the impact on whole-body thermal sensation was limited. Females were more sensitive to the improved radiative environment provided by Low-E glass than males. These findings show the effectiveness of Low-E glass in enhancing radiant environment in the vehicle and occupant comfort, which could help improving energy efficiency of vehicles and innovative vehicle designs.</div></div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"2 3","pages":"Article 100108"},"PeriodicalIF":0.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314022","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}