José Miguel Mora-Humara, Donají J González-Mille, Guillermo Espinosa-Reyes, Mario A Burgos-Aceves, Arturo Torres-Dosal, Israel Razo-Soto, César A Ilizaliturri-Hernández
{"title":"In Situ Assessment of Potentially Toxic Elements (PETs) in Different Tissues of Leopard Frogs (Lithobates berlandieri) Residing Near a Mining Site in Charcas, San Luis Potosi, Mexico.","authors":"José Miguel Mora-Humara, Donají J González-Mille, Guillermo Espinosa-Reyes, Mario A Burgos-Aceves, Arturo Torres-Dosal, Israel Razo-Soto, César A Ilizaliturri-Hernández","doi":"10.1007/s00128-025-04039-4","DOIUrl":"https://doi.org/10.1007/s00128-025-04039-4","url":null,"abstract":"<p><p>Mining generates large volumes of waste, which, if not regulated, can release toxic metals, causing widespread environmental contamination. This study focused on heavy metal contamination in sediments and amphibians within a mining area at Charcas, San Luis Potosi, Mexico. The results revealed that the Lithobates berlandieri individuals inhabiting an area polluted with industrial waste, high levels of heavy metals and metalloids (As, Cd, Cr, Cu, Hg and Pb) were found in sediments and tissues compared to samples from a reference site. Furthermore, the levels of all metals and metalloids in these frogs were higher in the kidney, liver, and skin. Additionally, it can contribute to the proposed use of non-lethal biomarkers (e.g. skin) for medium and long-term monitoring and regulation at these sites.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"64"},"PeriodicalIF":2.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Manganese Uptake and Lethality in the Sea Star Asterias rubens: Effect of Hypoxia.","authors":"Poul Bjerregaard, Søren Nordahl Hansen","doi":"10.1007/s00128-025-04037-6","DOIUrl":"https://doi.org/10.1007/s00128-025-04037-6","url":null,"abstract":"<p><p>Oxygen depletion due to eutrophication in marine waters has been an increasing problem worldwide and during oxygen depletion events, benthic organisms may concurrently be exposed to hypoxia and manganese leaching from reduced sediments. In this investigation the uptake and toxic effects of manganese under normoxia and hypoxia were studied in the sea star Asterias rubens. Exposure to 1 mg Mn L<sup>-1</sup> for 4 weeks resulted in increased manganese concentrations in tube feet and pyloric caeca, whereas the concentrations in the aboral body wall showed no statistically significant changes. Manganese concentrations and accumulation did not differ between hypoxia (25% oxygen saturation) and normoxia; mortality was not observed in either of these exposure scenarios. Exposure to 0, 25, 35 and 50 mg Mn L<sup>-1</sup> resulted in a time and concentration dependent increase in mortality over 7 d, aggravated by hypoxic conditions. Hypoxic conditions significantly reduced average survival time at exposure to 50 mg Mn L<sup>-1</sup>.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"65"},"PeriodicalIF":2.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11993448/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
M L Dotaniya, M D Meena, R L Choudhary, M K Meena, V D Meena, H V Singh, R S Jat, N R Bhardwaj, P K Rai
{"title":"Effect of Organic Sources on Microbial Population and Enzymatic Activities Under Salt Degraded Soil Condition.","authors":"M L Dotaniya, M D Meena, R L Choudhary, M K Meena, V D Meena, H V Singh, R S Jat, N R Bhardwaj, P K Rai","doi":"10.1007/s00128-025-04041-w","DOIUrl":"https://doi.org/10.1007/s00128-025-04041-w","url":null,"abstract":"<p><p>Excessive salt in soil limits the availability of plant nutrients during crop growth period. Addition of organic sources may reduce the intensity of salt by acting as the absorption mechanism during mineralization. In this, hypothesis, a field experiment was conducted with nine organic (farm yard manure-FYM, pressmud-PM, vermicompost-VC) treatments combinations (T<sub>1</sub>-control, T<sub>2</sub>-RDF, T<sub>3</sub>-RDF + FYM 10 t/ha, T<sub>4</sub>-RDF + FYM 2.5 t/ha + PM 2.5 t/ha, T<sub>5</sub>-RDF + FYM 5 t/ha + PM 5 t/ha, T<sub>6</sub>-RDF + PM 2.5 t/ha + VC 2.5 t/ha, T<sub>7</sub>-RDF + PM 5 t/ha + VC 5 t/ha, T<sub>8</sub>-RDF + FYM 1.25 t/ha + PM 2.5 t/ha + VC 1.25 t/ha, T<sub>9</sub>-RDF + FYM 2.5 t/ha + PM 5 t/ha + VC 2.5 t/ha). Mustard crop was raised with recommended packages and practices in saline soil. Rhizospheric samples were collected and analyzed for soil microbial population (bacteria, fungi and actinomycetes) and enzymatic activities (alkaline phosphatase, dehydrogenase activity-DHA, aryl sulphates). Analytical result showed that addition of 10 t/ha by the combination of FYM (2.5 t/ha), PM (5 t/ha) and VC (2.5 t/ha) measured highest population 148.4 × 10<sup>3</sup> CFU/g, 15.3 × 10<sup>3</sup>, 28.01 × 10<sup>3</sup> of bacterial, fungi and actinomycetes, respectively. Similarly, soil enzymatic activities alkaline phosphatase (210.7 µg PNP /g soil/h), DHA (92.7 µg TPF/g soil/h) and aryl sulphatase (54.4 µg PNP /g soil/h) were also found highest in T9 treatment (RDF + FYM 2.5 t/ha + PM 5 t/ha + VC 2.5 t/ha). In this experiment the type of organic source and application levels were directly influenced by the microbial population and enzymatic activities in soil. This study is very useful for improving the microbial population and plant nutrient availability under saline soils for improving mustard crop yield.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"62"},"PeriodicalIF":2.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Willian de Paula Santos, Caroline Santos, Letícia Paduan Tavares, Jhones Luís de Oliveira, Leonardo Fernandes Fraceto, Claudia Bueno Dos Reis Martinez
{"title":"Different Concentrations of Nanoencapsulated Geraniol Induce Lethargy and Acetylcholinesterase Activity in Aquarana catesbeiana Tadpoles.","authors":"Willian de Paula Santos, Caroline Santos, Letícia Paduan Tavares, Jhones Luís de Oliveira, Leonardo Fernandes Fraceto, Claudia Bueno Dos Reis Martinez","doi":"10.1007/s00128-025-04035-8","DOIUrl":"10.1007/s00128-025-04035-8","url":null,"abstract":"<p><p>Nanoencapsulated geraniol (nGER) may be a promising alternative to currently used synthetic pesticides, as it combines the pesticidal effects of geraniol with the protection against environmental degradation provided by zein nanocapsules. Anurans are non-target organisms that are highly harmed by the effects of pesticides; however, studies investigating the effects caused by alternatives to pesticides in amphibians are scarce. Thus, this study aimed to evaluate the toxicity of nGER through behavioral analyses and muscle acetylcholinesterase (AChE) activity in Aquarana catesbeiana tadpoles exposed to different concentrations of nGER (1, 5, 10, and 20 mg L<sup>-1</sup>). Characterization of the nanoparticles in the aquarium water over the exposure time (96 h) revealed similar sizes among the different groups. However, the concentration of particles in the higher concentrations (10 and 20 mg L<sup>-1</sup>) decreased, indicating a process of aggregation and precipitation. The results of the biomarkers showed that these higher nGER concentrations induce lethargy in animals within 96 h of exposure. Though, induction of muscle AChE was only observed in animals exposed to 5 mg L<sup>-1</sup>. Thus, the neuro-depressive effect of nGER appears to be unrelated to AChE activity in bullfrog tadpoles. Therefore, the hypothesis of this study was partially accepted since higher concentrations of nGER significantly altered the behavior of A. catesbeiana. However, this was not related to changes in AChE. As this is the first investigation into nGER toxicity in amphibians, the findings emphasize the importance of evaluating non-target organisms before considering alternative pesticides as sustainable.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"60"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bioaccumulation of Silver Nanoparticles (AgNPs) Co-Exposed with Graphene Oxide Nanosheets (GNs) in the Gill and Intestine Tissues of Guppy (Poecilia reticulata).","authors":"Naseh Babakhani, Soheil Sobhanardakani, Borhan Mansouri, Mehrdad Cheraghi, Bahareh Lorestani","doi":"10.1007/s00128-025-04020-1","DOIUrl":"10.1007/s00128-025-04020-1","url":null,"abstract":"<p><p>Silver nanoparticles (AgNPs) and graphene oxide nanoparticles (GNs) have known health effects on humans and other organisms. Therefore, this study aimed to assess the bioaccumulation and depuration of AgNPs in guppy (Poecilia reticulata) tissues in the presence of GNs. In so doing, two non-lethal concentrations of AgNPs, one non-lethal concentration of GNs, and two concentrations of the combination of AgNPs and GNs were used along with a control group. Based on the results obtained, on day 28, the level of silver in the gill tissue was 0.980 and 1.22 mg/g in the individual groups and 1.34 and 1.23 mg/g in the combined groups, respectively. Conversely, the silver uptake in the intestine tissue on day 28 was 0.377 and 0.267 mg/g in the individual groups and 0.659 and 0.475 mg/g in the combined groups, respectively. Silver uptake in guppy tissues increased with higher concentrations and longer exposure times, and it varied depending on the specific tissues involved. Also, findings show that the depuration rate within 14 days for both tissues is similar across individual and mixture exposure modes, indicating a comparable capacity for the depuration of silver particles. In conclusion, this study demonstrated that the presence of GNs has a synergistic effect on the uptake of silver in guppy tissues.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"61"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jalal Hassan, Aref Barkhordari, Mohammad Kazem Koohi, Ali Pourshaban-Shahrestani, Hooman Rahmati-Holasoo, Mohammad Amrollahi Sharifabadi
{"title":"Bioaccumulation and Oxidative Stress Induced by Organometallic and Ionic Tin Compounds in Zebrafish (Danio rerio) Embryos.","authors":"Jalal Hassan, Aref Barkhordari, Mohammad Kazem Koohi, Ali Pourshaban-Shahrestani, Hooman Rahmati-Holasoo, Mohammad Amrollahi Sharifabadi","doi":"10.1007/s00128-025-04031-y","DOIUrl":"10.1007/s00128-025-04031-y","url":null,"abstract":"<p><p>Tin, a heavy metal, in trace amounts is believed to play various roles in the biological development of fish, including involvement in cell structure, enzyme activities, and the metabolism of proteins and carbohydrates. Two endocrine-disrupting chemicals, Tributyltin (TBT) and Triphenyltin (TPT), are prevalent in aquatic environments. This study examines the bioaccumulation of these compounds and their impact on oxidative stress enzymes. Zebrafish embryos were used to assess the acute toxicity of TBT, TPT, and SnCl<sub>2</sub>. Toxicity tests were conducted on fertilized eggs using different concentrations of TBT, TPT, and SnCl<sub>2</sub> (0, 1, 5, 10, 15, and 20 ng/L). The LC<sub>50, 96 h</sub> values for TBT, TPT, and SnCl<sub>2</sub> in zebrafish embryos were 4.2, 8.7, and 12.56 ng/L, respectively. The study found an increase in the catalase (CAT) superoxide dismutase (SOD), and malondialdehyde (MDA) for TBT, TPT, and SnCl<sub>2</sub>. Moreover, TBT showed higher bioaccumulation than other compounds. The mortality rate was higher in embryos exposed to TBT, suggesting that embryos are more susceptible to TBT and can induce oxidative stress and disrupt the antioxidant equilibrium..</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"58"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retention of Mercury Sulfide Nanoparticles in Natural Soils.","authors":"Yuan Yuan, Weiping Cai, Yingnan Huang, Shuaishuai Shi, Yujun Wang, Fei Dang","doi":"10.1007/s00128-025-04038-5","DOIUrl":"10.1007/s00128-025-04038-5","url":null,"abstract":"<p><p>Growing evidence has indicated that mercury sulfide nanoparticles (HgS NPs) are the potential precursors for neurotoxic methylmercury. But how and which soil components affect HgS NP retention remains unclear. Here, we examined the retention of uncoated and humic acid coated HgS NPs in 18 natural soils with varied properties. Our results suggested that the K<sub>r</sub> values (retention coefficients) for uncoated and humic acid HgS NPs were 2.46 × 10<sup>3</sup> to 8.32 × 10<sup>5</sup> L kg<sup>- 1</sup> and 3.00 × 10<sup>3</sup> to 2.73 × 10<sup>5</sup> L kg<sup>- 1</sup>, respectively. Soil properties (i.e., electrical conductivity, organic matter (OM), oxalate-extractable Fe and Mn) significantly affected the uncoated HgS NP retention, accounting for 69% of the variability in the K<sub>r</sub> values. Meanwhile, OM exhibited a tendency to reduce coated HgS NP retention. Importantly, HgS NPs exhibited significant dissolution in representative soil porewaters. These findings highlight the soil property-dependent retention of HgS NPs in realistic environment.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"59"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adsorption Behaviors of Cadmium Regulated by Microplastics Properties in a Forest Soil.","authors":"Akaninyene Joseph, Rongxin Xie, Zhiwang Feng, Hanzhou Wu, Jizhou Li, Xuyin Yuan, Ningyuan Zhu, Yimin Wang","doi":"10.1007/s00128-025-04036-7","DOIUrl":"10.1007/s00128-025-04036-7","url":null,"abstract":"<p><p>Co-contamination of microplastics (MPs) and cadmium (Cd) has attracted attentions in forest soils due to their complex behaviors and ecological risks. This study investigates the interactions between MPs and Cd<sup>2+</sup>, focusing on effects of different types (polyethylene: PE, polybutylene succinate: PBS, poly-11-bromoundecyl acrylate: PBA), sizes (75-150 and 150-300 μm) and concentrations (1% and 10%) of MPs on soil properties. Results showed that MPs significantly influence contents of soil dissolved organic carbon and available nitrogen, while increased MPs concentrations reduced the dissolved organic matter (DOM) availability and decomposition. Adsorption and desorption of Cd<sup>2+</sup> were higher in biodegradable MPs (PBS and PBA), with the Freundlich model providing a better fit for Cd<sup>2+</sup> adsorption. Pearson correlation and redundancy analysis identified soil DOM, number of humic-like substances, and microbial by-products as key factors influencing Cd<sup>2+</sup> behavior. These findings contribute to understanding risks of co-contamination by MPs and heavy metals in forest soils.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"56"},"PeriodicalIF":2.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of Air, Water, Light, and Salinity on Release of Plasticizers, Flame Retardants, and Ultraviolet Absorbents from Polystyrene Plastic.","authors":"Hongshuang Shen, Fang Liu, Ruijie Zhang, Annan Yan, Yaru Kang, Jingyu Wang, Kefu Yu","doi":"10.1007/s00128-025-04034-9","DOIUrl":"10.1007/s00128-025-04034-9","url":null,"abstract":"<p><p>This study investigated how air, water, light, and salinity influence the release of three additives-phthalic acid esters (PAEs), organophosphate esters (OPEs), and organic ultraviolet absorbents (OUVAs)-from expanded polystyrene plastic (EPS). GC-MS/MS was used to quantify the concentrations of the three additives. The release kinetics and mechanisms under different conditions and the effects of various factors were analyzed. The release of PAEs and OPEs was more consistent with the first-order kinetics, while the release fitting of OUVAs was more in line with the second-order kinetics. Among all conditions, air exposure led to the highest release rates of PAEs (∑<sub>16</sub>PAEs: k = 0.868 ng/g·day) and OPEs (∑<sub>11</sub>OPEs: k = 0.927 ng/g·day). Compared to freshwater, seawater moderately inhibited EPS aging and additive release due to ion effects. Light significantly influenced both the rate and amount of additive release. Finally, the global release of plastic additives from EPS waste was estimated at 33.5k tons for PAEs, 646 tons for OPEs, and 420 tons for OUVAs.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"57"},"PeriodicalIF":2.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modulating Leaching of Mesosulfuron Methyl, Iodosulfuron Methyl and Transformation Products: Effects of Rainfall Intensity, Flow Patterns and Organic Amendments.","authors":"Harshdeep Kaur, Pervinder Kaur, Sandeep Sharma, Makhan Singh Bhullar","doi":"10.1007/s00128-025-04032-x","DOIUrl":"10.1007/s00128-025-04032-x","url":null,"abstract":"<p><p>In light of the environmental pollution risks, the effect of rainfall and flow conditions and addition of farmyard manure on leaching potential of mesosulfuron, iodosulfuron methyl and their transformation products (TPs) was evaluated. Leaching was higher under 300 mm rainfall compared to 150 mm. Discontinuous flow conditions led to lower residues of the parent herbicides but higher concentrations of their TPs. Among different TPs, mesosulfuron (M1), 2-[3-(4-hydroxy-6-methoxy pyrimidin-2-yl) ureido sulfonyl]- 4 - methane sulfonamido methyl benzoate (M2), metsulfuron methyl (I1) and methyl-2-(amino-sulfonyl) benzoate (I2) was detected. M2 has the highest mobility followed by M1 and I1 suggesting highest potential contamination risk of M2 to lower soil profiles and groundwater. Addition of farmyard manure to soil reduced leachability of both parent herbicides and TPs, highlighting its potential to mitigate groundwater contamination and providing a sustainable approach to minimizing herbicide pollution. However, future studies are required to assess the effect of various organic matter amendments on the leaching of herbicides.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"55"},"PeriodicalIF":2.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}