{"title":"[Effect of Free Water Surface Constructed Wetland on the Occurrence Characteristics of Microplastics in Water in the Upper Reaches of the Erhai Lake].","authors":"Hua Wang, Qi-Bin Liang, Liu-Yun Dai, Yan-Xia Wang, Xiao-Lin Li, Lei Hou","doi":"10.13227/j.hjkx.202312273","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312273","url":null,"abstract":"<p><p>Microplastics (MPs), an emerging contaminant, have been widely detected in environmental media including water, sediment, soil, and atmosphere. Exploring the occurrence and transport characteristics of MPs in different environments is essential for accurately evaluating its ecological and environmental effects. However, the extent to which a free water surface (FWS) constructed wetland alters the occurrence characteristics of MPs in water has not been clearly elucidated. Therefore, five FWS constructed wetlands in the Luoshijiang Watershed located in the upper reaches of the Erhai Lake were selected as the research objects. The effects of these FWS constructed wetlands on MPs characteristics in water bodies were explored based on their abundance, shape, particle size, and polymer type in the wetland inlet and outlet. The results showed that: ① The quantity and mass abundance of MPs in the water of the FWS constructed wetland in the Luoshijiang Watershed were in the range of 10 375-21 000 n·m<sup>-3</sup> and 5.5-9.8mg·m<sup>-3</sup>, and the corresponding average abundances were (14 115±2 790) n·m<sup>-3</sup> and (7.6±2.3)mg·m<sup>-3</sup>, respectively. MPs with small particle size (0.2-1 mm, 73.8%±7.5%), transparent color (64.0%±12.2%), and fiber shape (98.9%±1.7%) were dominant in water bodies of the FWS constructed wetland, while cellophane (CP, 58.5%±13.9%), polyethylene terephthalate (PET, 22.1%±11.4%), and polyester (PES, 12.8%±16.8%) were the main polymer types. The MPs abundance in the water of FWS constructed wetland in this watershed was relatively high, whereas the pollution load index and ecological risk index were both in low levels (Level I). ② After water flowing through the FWS constructed wetland, the film- and fragment-shaped MPs disappeared, and the proportions of dominant color (transparent, black, and white) and polymer type (PET) decreased by 1.4% and 4.1%, respectively. By contrast, the proportions of large size and minority-color (red, yellow, green, purple, etc.) MPs increased, with 1-2 mm, 2-5 mm, and minority-color increasing by 3.0%, 2.2%, and 5.4%, respectively, and polymer types of rayon and PES, which did not exist in the wetland inlet, were detected. ③ The quantity and mass abundance of MPs differences between the inlet and outlet of the FWS constructed wetland in the Luoshijiang Watershed were both insignificant (<i>P</i>>0.05), and the retention of MPs in water bodies by the FWS constructed wetland was also insignificant. However, the FWS constructed wetland weakened the correlations among different MPs characteristics in water bodies. The results indicated that the FWS constructed wetland could alter the occurrence characteristics of MPs in water bodies, including particle size, shape, color, and polymer type, and exhibited the dual roles of source and sink of MPs.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6616-6624"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773063","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":"[Impacts of Urbanization on Soil Aggregate Stability and Organic Carbon Content in Urban Greenspaces: A Case Study of Nanchang City, Jiangxi Province].","authors":"Fo-Yi Zhang, Chang-Yong-Ming Cai, Jia-Lin Zhong, Fei Huang, Xin Li, Xin-Yan Li, Wei Liu, Qiong Wang","doi":"10.13227/j.hjkx.202312268","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312268","url":null,"abstract":"<p><p>Exploring the mechanisms of the impacts of urbanization on soil aggregate stability and soil organic carbon (SOC) content will contribute to improving soil quality in urban greenspaces. Using the built-up area of Nanchang City, Jiangxi Province as a case study, the urbanization intensity was differentiated by impervious rate, and the vegetation characteristics and soil properties of 184 greenspace plots were investigated and determined. Variations in the stability parameters (geometric mean diameter, mean weight diameter, fractal dimension, and unstable aggregate index) and SOC contents across soil aggregate-size fractions (>2, 1-2, 0.25-1, 0.053-0.25, and <0.053 mm) and their interaction mechanisms with soil physicochemical properties and vegetation characteristics were analyzed in different urbanization intensities. The results showed that: ① The mass fractions of 0.053-0.25 mm aggregates in low urbanization areas were significantly lower than that in medium and high urbanization areas (<i>P</i><0.05), whereas there was no significant difference in soil aggregate stability among different urbanization intensities (<i>P</i>>0.05). ② The SOC contents of >2, 1-2, 0.25-1, and 0.053-0.25 mm aggregates were significantly higher than that in high urbanization areas by 26%-39% (<i>P</i><0.05), while the SOC contents of <0.053 mm aggregates were not affected by urbanization (<i>P</i>>0.05). ③ Both redundancy analysis and structural equation modeling demonstrated that urbanization influenced the changes in soil physicochemical properties (decreasing total nitrogen and phosphorus and increasing bulk density), which indirectly reduced SOC accumulation of aggregates, whereas the larger tree height, diameter at breast height, crown diameter, diversity index, and herb coverage could directly or indirectly improve SOC content and the stability of aggregates. In conclusion, although urbanization indirectly decreased the SOC contents of aggregates, the aggregate stability was not affected by it. The manipulation of soil physicochemical properties and vegetation characteristics could alleviate the negative effects of urbanization on the SOC accumulation of aggregates, which provides a theoretical foundation for improving soil quality in urban greenspaces.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6538-6545"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773137","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":"[Analysis of Carbon Emission Reduction Potential and Discussion on the Green Development Path in Gansu-Qinghai Regions].","authors":"Li-Na Liu, Feng Gao, Jian-Sheng Qu, Pei-Qing Zhao, Chang-Liang Yin, Hua-Kun Zhou, Bao Wang, Zhong-Hua Zhang","doi":"10.13227/j.hjkx.202312058","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312058","url":null,"abstract":"<p><p>The energy resources are rich, and the ecological environment is fragile in Gansu-Qinghai regions, which are facing problems in the coordinated development of green as well as low carbon transformation and high-quality economy. Based on the reality of Gansu-Qinghai regions, this study deeply analyzed the characteristics of regional carbon emissions; constructed the system dynamics model between carbon emissions and population, economy, energy, and policy; clarified the relationship between them; and probed into the future green development path. The results showed that: ① In recent years, the total and per capita carbon emissions in Gansu-Qinghai regions have been on the rise. From the perspective of energy structure, coal consumption was the most important source of carbon emissions, and the industrial sector had the greatest contribution from the point of view of sector contribution. ② Compared with the baseline scenario, by 2030, carbon emissions of Gansu Province could be reduced by 14% and 25%, and those of Qinghai Province could be reduced by 26% and 38% under the optimized and strengthened scenarios, respectively. ③ Compared with the optimization scenario, by 2030, carbon emissions of Gansu Province could be reduced by 5.39%, 3.53%, 2.74%, and 0.74%, and those of Qinghai Province could be reduced by 7.43%, 5.67%, 2.89%, and 0.26% under the scenarios of structural, scale, technological, and awareness strengthening, respectively. ④ According to the resource endowment of Gansu-Qinghai regions, strengthening policies to promote green and low-carbon development, accelerating industrial transformation and upgrading to help high-quality development, and promoting the coordinated development of ecological protection and pollution reduction will help to promote the realization of \"double carbon.\"</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6354-6364"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142772508","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}
环境科学Pub Date : 2024-11-08DOI: 10.13227/j.hjkx.202311234
Ming Hu, Chao Sun, Sai-Shuai Zhao, Shu Zhang, Xing-Ru Shen, Ke Shi
{"title":"[Reversal Process and Driving Force Analysis for Arable Land Ecological Quality in Ningbo Using Time-series Remote Sensing Technology].","authors":"Ming Hu, Chao Sun, Sai-Shuai Zhao, Shu Zhang, Xing-Ru Shen, Ke Shi","doi":"10.13227/j.hjkx.202311234","DOIUrl":"https://doi.org/10.13227/j.hjkx.202311234","url":null,"abstract":"<p><p>Timely monitoring of the changes in the ecological quality of arable land and the driving forces is of great significance for maintaining the ecological balance and sustainable development of agriculture. This study used the advanced time-series remote sensing continuous change detection and classification (CCDC) algorithm to synthesize images with the acquisition date of each year, in order to overcome the impacts of cloudy weather and vegetation phenology. Based on this, the reversal process and mechanism for the ecological quality of arable land in Ningbo were precisely identified using the comprehensive ecological evaluation index (CEEI) and geo-detector methods. The results showed that:① With a key turning point of the year 2014, the ecological quality of the arable land in Ningbo experienced a rapid rebound after a long-term decline, represented by the average CEEI decreasing from 0.649 to 0.617 and rising to 0.628. Until 2019, the ecological quality had recovered to the level of that in 2003. This reverse in the ecological quality of the arable land for each district successively appeared from 2011 to 2015, the northern area of Ningbo (i.e., the town center, Yuyao, and Cixi) presented a restored trend after first degraded, while the southern Ningbo area (i.e., Fenghua, Ninghai, and Xiangshan) presented an improved trend after long-term maintenance. ② The dominant driving force of the ecological quality of the arable land in Ningbo presented a reversal that it first converted from the rural labor resource (the period: 1990-1994) to the irrigated area or rural fertilizer usage (the period: 1995-2014) and then converted to the rural labor resource (the period: 2015-2019) again. The maintenance of the rural labor resource and the improvement in the level of agricultural mechanization in the past 5 years facilitated the implementation of land consolidation and high-standard farmland development, which directly promoted the reversal process. Such fundamental and key effects of the rural labor resource were particularly outstanding for the town center and Cixi. The study can provide technical reference for accurate monitoring of the ecological quality for coastal cities, and the related findings are expected to serve for the effective management of arable land resources and high-quality development of agriculture.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6501-6513"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773008","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}
环境科学Pub Date : 2024-11-08DOI: 10.13227/j.hjkx.202311231
Xiao-Wen Xing, Lin Huang, Jian-Lin Hu
{"title":"[Synergistic Emission Reduction of Carbon Dioxide and Atmospheric Pollutants Under Different Low-carbon Development Scenarios of the Power Industry in Jiangsu Province].","authors":"Xiao-Wen Xing, Lin Huang, Jian-Lin Hu","doi":"10.13227/j.hjkx.202311231","DOIUrl":"https://doi.org/10.13227/j.hjkx.202311231","url":null,"abstract":"<p><p>The power industry is the main source of carbon dioxide (CO<sub>2</sub>) emissions in Jiangsu Province and also an important source of sulfur dioxide (SO<sub>2</sub>), nitrogen oxides (NO<i><sub>x</sub></i>), and particulate matter (PM). In order to address climate change and contribute to the goal of \"carbon peaking and carbon neutrality,\" Jiangsu Province has implemented a series of low-carbon development policies in the power industry. These policies not only reduce carbon emissions but also have important synergistic emission reduction benefits for atmospheric pollutants. Based on the low-carbon development plan for electricity in Jiangsu Province, a baseline scenario (BAU) and four low-carbon development scenarios have been constructed: current policy scenario (CLE), IEA target scenario (IEA), accelerated coal-fired power phaseout scenario 1 (STE1), and scenario 2 (STE2). An econometric model was used to predict the future electricity demand in Jiangsu Province, and the greenhouse gas-air pollution interactions and synergies (GAINS) model was employed to quantitatively analyze the impact of low-carbon policies in the power sector on the emissions of CO<sub>2</sub>, SO<sub>2</sub>, NO<i><sub>x</sub></i>, and PM, which are the major air pollutants in the region. The results showed that the electricity demand in Jiangsu Province has been increasing year by year, with an annual growth rate of approximately 4.01%. Under the BAU scenario, carbon emissions were projected to peak around 2030, with a peak carbon emission level of 462.03 Mt. Under the IEA scenario, it should reach its peak around 2028, with a peak emission level of 380.27 Mt. Under the CLE scenario, the peak would be expected to occur around 2026 at 353.46 Mt. In both STE1 and STE2 scenarios, carbon emissions had reached their peak and were continuously declining after 2020. In all scenarios, the replacement of conventional coal-fired power plants with natural gas (GAS), nuclear power (NUC), solar photovoltaic (SPV), and wind power (WND) showed high synergistic benefits in pollution reduction and carbon reduction. The deployment of biomass energy (OS1) and non-renewable waste energy (OS2) will result in a significant increase in SO<sub>2</sub> emissions. Carbon capture and storage (CCS) transformation of coal-fired power only showed significant synergistic benefits after 2035. The development of OS1 and OS2 fuel substitutes in power plants should focus more on reducing SO<sub>2</sub> emissions, while upgrading and retrofitting CCS technology should prioritize the reduction of particulate matter emissions. The research findings provide a reference and decision-making basis for the synergistic efficiency of pollution reduction and carbon reduction in the power industry in Jiangsu Province.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6326-6335"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773026","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}
Axll Ross A. Campos , Kyan Marlu B. Luza , Merrah Joy Blaya Subebe , Carlito Baltazar Tabelin , Theerayut Phengsaart , Takahiko Arima , Reya Seno , Roselyn Butalid , Art Brian Escabarte , Ahmad Reza F. Mazahery , Gloria Shiela E. Coyoca , Mylah Villacorte-Tabelin
{"title":"Polytetrafluoroethylene (PTFE) microplastics affect angiogenesis and central nervous system (CNS) development of duck embryo","authors":"Axll Ross A. Campos , Kyan Marlu B. Luza , Merrah Joy Blaya Subebe , Carlito Baltazar Tabelin , Theerayut Phengsaart , Takahiko Arima , Reya Seno , Roselyn Butalid , Art Brian Escabarte , Ahmad Reza F. Mazahery , Gloria Shiela E. Coyoca , Mylah Villacorte-Tabelin","doi":"10.1016/j.emcon.2024.100433","DOIUrl":"10.1016/j.emcon.2024.100433","url":null,"abstract":"<div><div>Prolonged exposure to teratogens is known to cause neural tube defects (NTDs), a severe malformation of the central nervous system (CNS) that significantly contributes to global infant mortality. In recent years, exposure to nanoplastics (NPs) has been linked to faulty neural crest closure and altered neurulation by altering cellular adhesion molecules and accumulation of plastic particles in the neural tube leading to NTDs. However, research on the influence of various types of microplastics (MPs) on malformations of the CNS are still limited. In this study, we investigated whether MPs of polytetrafluoroethylene (PTFE)—a type of plastic commonly used as non-stick coatings of cooking utensils can affect angiogenesis and CNS development using ducks as model organisms. PTFE MPs were administered on Day 3 of duck embryo development at varying concentrations (0.01 mg/ml, 0.1 mg/ml, 1 mg/ml, and 5 mg/ml), and angiogenesis was evaluated using a chorioallantoic membrane (CAM) assay. Gross morphology and histology of the spinal column and brain were analyzed on Days 8 and 18, respectively. FTIR confirmed PTFE's structure, while SEM and DLS analyses showed particle sizes between 300 nm and 5 μm, classifying them as MPs. High concentrations (5 mg/ml) of PTFE MPs treated on duck embryos resulted in a 35 % mortality rate and reduced vascular density, suggesting anti-angiogenic effects. Brain and spinal abnormalities, such as encephalomalacia and spinal cord discontinuities were observed in the PTFE-treated embryos. Based on these results, PTFE is an anti-angiogenic and teratogenic agent affecting the development of duck embryos.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 1","pages":"Article 100433"},"PeriodicalIF":5.3,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663866","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}
Chaoli Yuan , Mantuo Huang , Jiajia wan , Zijia Hong , Jiwen Luo , Lixuan Zeng , Yu Bon Man , Bingyan Lan , Xiaomin Yan , Yuan Kang
{"title":"The effect of lead on dermal exposure of plasticizers in toys and associated risk assessment","authors":"Chaoli Yuan , Mantuo Huang , Jiajia wan , Zijia Hong , Jiwen Luo , Lixuan Zeng , Yu Bon Man , Bingyan Lan , Xiaomin Yan , Yuan Kang","doi":"10.1016/j.emcon.2024.100432","DOIUrl":"10.1016/j.emcon.2024.100432","url":null,"abstract":"<div><div>Numerous studies reported risk assessment of human exposure to plasticizers in toys through dermal pathways, however, dermal bioaccessibility and percutaneous penetration of plasticizers under effects of lead had been seldom studied. In the present study, dermal bioaccessibility of plasticizers including phthalate esters and alternative plasticizers in toys were examined in artificial sweat and SSSM (synthetic sweat and sebum mixture), and percutaneous penetration of plasticizers were investigated by skin cells under individual plasticizers exposure or combined exposure conditions (plasticizers + lead). The present results indicated that dermal bioaccessibility of plasticizers in SSSM were higher than that in artificial sweat. DEHP (Di-2-ethylhexyl Phthalate) showed highest bioaccessibility among all the plasticizers, DEHT (Di (2-ethylhexyl) terephthalate) showed highest bioaccessibility among all the alternative plasticizers. DEHP and DEHT were selected to perform the cell absorption assay. Skin cell absorption assay demonstrated that MEHP (Mono-(2-ethylhexyl) phthalate) was the major metabolite of DEHP and the absorption percentage of DEHP was higher than that of DEHT. Compared to individual exposure of plasticizers, the absorption percentage of DEHP and DEHT in skin cells under the combined exposure condition were increased by 12.40 %–14.63 % and 8.35 %–9.84 %, respectively. Risk assessment indicated that the plasticizers in toy would not result in unacceptable risk for children, but the health risk of plasticizers in toys to children under combined exposure condition would be 1.5–2 times higher than that under individual exposure condition.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 1","pages":"Article 100432"},"PeriodicalIF":5.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663871","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}
Jie Li , Xinlei Li , Yi Zhu , Libo Wang , Shilong Ren , Rui An , Qingzhu Zhang , Guoqiang Wang
{"title":"The first survey of legacy and emerging per- and polyfluoroalkyl substances (PFAS) in Hulun Lake, China: Occurrence, sources, and environmental impacts","authors":"Jie Li , Xinlei Li , Yi Zhu , Libo Wang , Shilong Ren , Rui An , Qingzhu Zhang , Guoqiang Wang","doi":"10.1016/j.emcon.2024.100431","DOIUrl":"10.1016/j.emcon.2024.100431","url":null,"abstract":"<div><div>Many per- and poly-fluoroalkyl substances (PFAS) studies in environmental media have been conducted in heavily industrialized and densely populated areas. However, there has been limited research on legacy and emerging PFAS contamination in cold and arid regions. In the present study, we investigated the concentrations of 30 PFAS compounds in the surface water and sediment of Hulun Lake and its inflowing rivers. The main components in water were short chain perfluoroalkyl carboxylic acids (PFCAs) in both Hulun Lake (33.57 %) and its inflowing rivers (30.47 %). However, long chain perfluoroalkane sulfonates (PFSAs) and long chain PFCAs accounted for more than half of the total PFAS content in sediment. Total PFAS concentrations (∑<sub>30</sub>PFAS) ranged from 3.67 to 8.84 ng/L in water, and 0.97–1.73 μg/kg in sediment. Significant spatial differences were apparent between Hulun Lake and its inflowing rivers in both water and sediment samples. Source apportionment revealed that wastewater, aqueous film forming foams, textiles and paper-based food packaging, and paper products and cosmetics were the primary sources of PFAS. The partitioning coefficients of PFCAs were dependent on the carbon chain length. Temperature, conductivity, pH, salinity, chemical oxygen demand, total phosphorus (TP), total nitrogen (TN), As, and oxidation-reduction potential were the main influencing factors in water. Heavy metals (Co, Pb, Cu, Ni, Hg, Cd, and As), TP, salinity, and pH were positively correlated with the PFAS concentration in sediment. Furthermore, Hailar River contributed the majority (99.74 %, ∼15.05 kg/year) of the PFAS mass flux. This is the first study showing PFAS contamination in Hulun Lake and the results suggest that long term monitoring is needed for the effective control of PFAS pollution in this typical cold and arid region of China.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 1","pages":"Article 100431"},"PeriodicalIF":5.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663865","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}
Qingyong Sun, Yunhang Zeng, Yue Yu, Ya-nan Wang, Bi Shi
{"title":"Correction: an exploration of enhancing thermal stability of leather by hydrophilicity regulation: effect of hydrophilicity of phenolic syntan","authors":"Qingyong Sun, Yunhang Zeng, Yue Yu, Ya-nan Wang, Bi Shi","doi":"10.1186/s42825-024-00178-2","DOIUrl":"10.1186/s42825-024-00178-2","url":null,"abstract":"","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-024-00178-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dorin Shmaryahu , Rotem Lev Lehman , Ezri Peleg , Guy Shani
{"title":"Estimating TYLCV resistance level using RGBD sensors in production greenhouse conditions","authors":"Dorin Shmaryahu , Rotem Lev Lehman , Ezri Peleg , Guy Shani","doi":"10.1016/j.aiia.2024.10.004","DOIUrl":"10.1016/j.aiia.2024.10.004","url":null,"abstract":"<div><div>Automated phenotyping is the task of automatically measuring plant attributes to help farmers and breeders in developing and growing strong robust plants. An automated tool for early illness detection can accelerate the process of identifying plant resistance and quickly pinpoint problematic breeding. Many such phenotyping tasks can be achieved by analyzing images from simple, low cost, RGB-D sensors. In this paper we focused on a particular case study — identifying the resistance level of tomato hybrids to the tomato yellow leaf curl virus (TYLCV) in production greenhouses. This is a difficult task, as separating between resistance levels based on images is difficult even for expert breeders. We collected a large dataset of images from an experiment containing many tomato hybrids with varying resistance levels. We used the depth information to identify the topmost part of the tomato plant. We then used deep learning models to classify the various resistance levels. For identifying plants with visual symptoms, our methods achieved an accuracy of 0.928, a precision of 0.934, and a recall of 0.95. In the multi-class case we achieved an accuracy of 0.76 in identifying the correct level, and an error of 0.278. Our methods are not particularly tailored for the specific task, and can be extended to other tasks that identify various plant diseases with visual symptoms such as ToBRFV, mildew, ToMV and others.</div></div>","PeriodicalId":52814,"journal":{"name":"Artificial Intelligence in Agriculture","volume":"14 ","pages":"Pages 31-42"},"PeriodicalIF":8.2,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}