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Corrigendum to "Image recognition technology provides insights into relationships between anthocyanin degradation and color variation during jet drying of black carrot" [Food Chem. 450 (2024) 139460]. 对 "图像识别技术有助于深入了解黑胡萝卜喷射干燥过程中花青素降解与颜色变化之间的关系 "的更正 [Food Chem. 450 (2024) 139460]。
IF 8.5 1区 农林科学
Food Chemistry Pub Date : 2024-10-15 Epub Date: 2024-06-08 DOI: 10.1016/j.foodchem.2024.139993
Wenfeng Li, Rui Yang, Yiwen Xia, Xinyi Shao, Yimeng Wang, Wanjie Zhang
{"title":"Corrigendum to \"Image recognition technology provides insights into relationships between anthocyanin degradation and color variation during jet drying of black carrot\" [Food Chem. 450 (2024) 139460].","authors":"Wenfeng Li, Rui Yang, Yiwen Xia, Xinyi Shao, Yimeng Wang, Wanjie Zhang","doi":"10.1016/j.foodchem.2024.139993","DOIUrl":"10.1016/j.foodchem.2024.139993","url":null,"abstract":"","PeriodicalId":318,"journal":{"name":"Food Chemistry","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141295290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exposure to volatile organic compounds in offices and in residential and educational buildings in the European Union between 2010 and 2023: A systematic review and health risk assessment. 2010 年至 2023 年欧洲联盟办公室、住宅和教育建筑中的挥发性有机化合物暴露:系统回顾与健康风险评估。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-17 DOI: 10.1016/j.scitotenv.2024.173965
László Pál, Szabolcs Lovas, Martin McKee, Judit Diószegi, Nóra Kovács, Sándor Szűcs
{"title":"Exposure to volatile organic compounds in offices and in residential and educational buildings in the European Union between 2010 and 2023: A systematic review and health risk assessment.","authors":"László Pál, Szabolcs Lovas, Martin McKee, Judit Diószegi, Nóra Kovács, Sándor Szűcs","doi":"10.1016/j.scitotenv.2024.173965","DOIUrl":"10.1016/j.scitotenv.2024.173965","url":null,"abstract":"<p><p>Chronic exposure to indoor volatile organic compounds (VOCs) can result in several adverse effects including cancers. We review reports of levels of VOCs in offices and in residential and educational buildings in the member states of the European Union (EU) published between 2010 and 2023. We use these data to assess the risk to population health by estimating lifetime exposure to indoor VOCs and resulting non-cancer and cancer risks and, from that, the burden of cancer attributable to VOC exposure and associated economic losses. Our systematic review identified 1783 articles, of which 184 were examined in detail, with 58 yielding relevant data. After combining data on VOC concentrations separately for EU countries and building types, non-cancer and cancer risks were assessed in terms of hazard quotient and lifetime excess cancer risk (LECR) using probabilistic Monte Carlo Simulations. The LECR was used to estimate disability adjusted life years (DALYs) from VOC-related cancers and associated costs. We find that the LECR associated with formaldehyde exposure was above the acceptable risk level (ARL) in France and Germany and that of from exposure to benzene was also above the ARL in Spanish females. The sum of DALYs and related costs/1,000,000 population/year from exposure to acetaldehyde, benzene, formaldehyde, tetrachloroethylene, and trichloroethylene were 4.02 and €41,010, respectively, in France, those from exposure to acetaldehyde, benzene, carbon tetrachloride, formaldehyde, and trichloroethylene were 3.91 and €39,590 in Germany, and those from exposure to benzene were 0.1 and €1030 in Spain. Taken as a whole, these findings show that indoor exposure to VOCs remains a public health concern in the EU. Although the EU has set limits for certain VOCs, further measures are needed to restrict the use of these chemicals in consumer products.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
High-level HONO exacerbates double high pollution of O3 and PM2.5 in China. 高浓度的 HONO 加剧了中国 O3 和 PM2.5 的双高污染。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-17 DOI: 10.1016/j.scitotenv.2024.174066
Chao Liu, Bingqing Lu, Qian Wang, Zekun Zhang, Xue Meng, Juntao Huo, Hartmut Herrmann, Xiang Li
{"title":"High-level HONO exacerbates double high pollution of O<sub>3</sub> and PM<sub>2.5</sub> in China.","authors":"Chao Liu, Bingqing Lu, Qian Wang, Zekun Zhang, Xue Meng, Juntao Huo, Hartmut Herrmann, Xiang Li","doi":"10.1016/j.scitotenv.2024.174066","DOIUrl":"10.1016/j.scitotenv.2024.174066","url":null,"abstract":"<p><p>Double high pollution (DHP) of ozone (O<sub>3</sub>) and fine particulate matter (PM<sub>2.5</sub>) has frequently been observed in China in recent years. Numerous studies have speculated that DHP might be related to nitrous acid (HONO), but the chemical mechanism involved remains unclear. Field observation results of DHP in Shanghai indicate that the high concentration of HONO produced by nitrogen dioxide (NO<sub>2</sub>) heterogeneous reactions under conditions of high temperature and high humidity promotes an increase in PM<sub>2.5</sub> and O<sub>3</sub> concentrations. The box model combined with field observations to reconstruct pollution events indicates that HONO photolysis generates abundant hydroxyl (OH) radicals that rapidly oxidize volatile organic compounds (VOCs), which in turn accelerates the RO<sub>x</sub> (OH, hydroperoxyl (HO<sub>2</sub>), and organic peroxy (RO<sub>2</sub>) radicals) cycle and causes the accumulation of O<sub>3</sub>. This elevated O<sub>3</sub> along with high concentrations of HONO, produces particulate nitrate (pNO<sub>3</sub>) by encouraging the NO<sub>2</sub> + OH reaction. This process strengthens the chemical coupling between O<sub>3</sub> and PM<sub>2.5</sub>, which can exacerbate the DHP of O<sub>3</sub> and PM<sub>2.5</sub>. Sensitivity analysis of pNO<sub>3</sub>/O<sub>3</sub>-NO<sub>x</sub>-VOCs suggests that under nitrogen oxides (NO<sub>x</sub> = NO + NO<sub>2</sub>) reduction conditions, simultaneous control of pNO<sub>3</sub> and O<sub>3</sub> can be expected to be successfully achieved through emission reduction of alkanes and oxygenated VOCs (OVOCs). Therefore, the present research will facilitate the design of appropriate PM<sub>2.5</sub> and O<sub>3</sub> control strategies for high HONO concentration conditions, and thus alleviate the current stresses of air pollution.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Neurodegenerative pathways and metabolic changes in the hippocampus and cortex of mice exposed to urban particulate matter: Insights from an integrated interactome analysis. 暴露于城市颗粒物的小鼠海马和大脑皮层的神经退行性病变途径和代谢变化:综合交互组分析的启示
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-04 DOI: 10.1016/j.scitotenv.2024.173673
Bu-Yeo Kim, Eunjin Sohn, Mee-Young Lee, Woo-Young Jeon, Kyuhyung Jo, Yu Jin Kim, Soo-Jin Jeong
{"title":"Neurodegenerative pathways and metabolic changes in the hippocampus and cortex of mice exposed to urban particulate matter: Insights from an integrated interactome analysis.","authors":"Bu-Yeo Kim, Eunjin Sohn, Mee-Young Lee, Woo-Young Jeon, Kyuhyung Jo, Yu Jin Kim, Soo-Jin Jeong","doi":"10.1016/j.scitotenv.2024.173673","DOIUrl":"10.1016/j.scitotenv.2024.173673","url":null,"abstract":"<p><p>Recently, urban particulate matter (UPM) exposure has been associated with the development of brain disorders. This study uses bioinformatic analyses to elucidate the molecular unexplored mechanisms underlying the effects of UPM exposure on the brain. Mice are exposed to UPM (from 3 days to 20 weeks), and their behavioral patterns measured. We measure pathology and gene expression in the hippocampus and cortical regions of the brain. An integrated interactome of genes is established, which enriches information on metabolic processes. Using this network, we isolate the core genes that are differentially expressed in the samples. We observe cognitive loss and pathological changes in the brains of mice at 16 or 20 weeks of exposure. Through network analysis of core-differential genes and measurement of pathway activity, we identify differences in the response to UPM exposure between the hippocampus and cortex. However, neurodegenerative disease pathways are implicated in both tissues following short-term exposure to UPM. There were also significant changes in metabolic function in both tissues depending on UPM exposure time. Additionally, the cortex of UPM-exposed mice shows more similarities with psychiatric disorders than with neurodegenerative diseases. The connectivity map database is used to isolate genes contributing to changes in expression due to UPM exposure. New approaches for inhibiting or preventing the brain damage caused by UPM exposure can be developed by targeting the functions and selected genes identified in this study.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141260751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Will greenhouse gas emissions increase with mining depth in coal mines? An analysis of gas occurrence under varying in-situ stress conditions. 温室气体排放量会随着煤矿开采深度的增加而增加吗?对不同原地应力条件下瓦斯发生情况的分析。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-18 DOI: 10.1016/j.scitotenv.2024.173957
Wei Zhao, Dan Zhao, Kai Wang, Long Fan, Zhihu Zhao, Huzi Dong, Longyong Shu
{"title":"Will greenhouse gas emissions increase with mining depth in coal mines? An analysis of gas occurrence under varying in-situ stress conditions.","authors":"Wei Zhao, Dan Zhao, Kai Wang, Long Fan, Zhihu Zhao, Huzi Dong, Longyong Shu","doi":"10.1016/j.scitotenv.2024.173957","DOIUrl":"10.1016/j.scitotenv.2024.173957","url":null,"abstract":"<p><p>The rapid development of the economy leads to the high demand for deep coal resources, which further poses the potential problem of deep gas (or methane) emissions. The clarification of deep gas occurrence law for coal mines provides theoretical and data support for methane emission predictions, and assists industrial and mining enterprises in planning targeted emission reduction measures. This study defined and verified the existence of a critical depth for the deep gas occurrence in coal mines based on a multiple-scale case study of how the gas occurrence is associated with depth and stress status changes in the Pingdingshan No.8 Coal Mine. In addition, 882 sets of gas content data from 7 major mining areas in China were collected and their gas content distributions among various depths were statistically analyzed to prove the universal existence of critical depth. The results show that the critical depth of Pingdingshan No.8 Coal Mine is 509 m, and the critical depth of other Chinese areas is about 400 to 1000 m. Significant differences were observed in the pore space, surface, and gas desorption characteristics for coal samples with different depths and stress states. The pore structure in the critical depth area is relatively developed, and gas is easily accumulated. The gas occurrence of both normal and abnormal gas gradually increases with the depth's increase in areas above the critical depth, whereas the gas occurrence gradually decreases for areas below the critical depth, showing that the existence of critical depth lead to significant deviations in gas emission predictions. The results provide a fundamental reference for gas emission prediction, greenhouse effect assessment, and carbon emission factor calculation and indicate that using the traditional linear method may be misleading for evaluating deep gas occurrence and emission.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141430996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Understanding the hydrological performance of green and grey roofs during winter in cold climate regions. 了解寒冷气候地区绿色屋顶和灰色屋顶在冬季的水文性能。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-20 DOI: 10.1016/j.scitotenv.2024.174132
Noëlie Maurin, Elhadi H M Abdalla, Tone Merete Muthanna, Edvard Sivertsen
{"title":"Understanding the hydrological performance of green and grey roofs during winter in cold climate regions.","authors":"Noëlie Maurin, Elhadi H M Abdalla, Tone Merete Muthanna, Edvard Sivertsen","doi":"10.1016/j.scitotenv.2024.174132","DOIUrl":"10.1016/j.scitotenv.2024.174132","url":null,"abstract":"<p><p>Green and grey roofs have emerged as promising and sustainable measures for effectively managing stormwater in urban catchments. However, there is a gap in the literature in understanding and modelling the hydrological performance of these roofs during winter and snow-covered periods in cold climate regions. The present study attempted to address this gap by validating the use of a snow module in simulating the dynamics of snow accumulation and melting of green and grey roofs. Then, the validated model was used to identify and separate the different events that occur in winter (melt only, rainfall only, rain-on-snow) to assess the hydrological performance of six different configurations of green and grey roofs in Trondheim, Norway. The snow module accurately simulated snow accumulation and melting of green and grey roofs. The results showed that rain-on-snow events in winter have longer duration compared to other events including rainfall events in summer. Consequently, rain-on-snow events yield a higher amount of inflow to the roofs compared to rainfall events in summer, despite summer events having higher intensities. The retention and detention performances of green and grey roofs were found to be lowest for rain-on-snow events compared to other types of events, but still yielding significantly lower peak runoffs when compared to standard black roofs. The decrease in retention and detention performances in winter were attributed to the long duration of events, accumulation effect of snow, freezing of roof surface layers, and reduction of evapotranspiration. The study highlights the importance of considering winter conditions in the design of green and grey roofs in cold climates to enhance stormwater management.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141439970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Effects of ambient air pollution from shipping on mortality: A systematic review. 航运造成的环境空气污染对死亡率的影响:系统综述。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-08 DOI: 10.1016/j.scitotenv.2024.173714
Simo-Pekka Kiihamäki, Marko Korhonen, Jaakko Kukkonen, Ivy Shiue, Jouni J K Jaakkola
{"title":"Effects of ambient air pollution from shipping on mortality: A systematic review.","authors":"Simo-Pekka Kiihamäki, Marko Korhonen, Jaakko Kukkonen, Ivy Shiue, Jouni J K Jaakkola","doi":"10.1016/j.scitotenv.2024.173714","DOIUrl":"10.1016/j.scitotenv.2024.173714","url":null,"abstract":"<p><strong>Background: </strong>Shipping contributes to air pollution causing adverse health effects. We conducted for the first time a systematic review on the health and economic impacts of ambient air pollution from shipping emissions.</p><p><strong>Methods: </strong>We performed a systematic search in PubMed, Web of Science, EBSCO (Medline), and Scopus of all time up to December 2023. We then inter-compared semi-quantitatively the results of the included eligible studies.</p><p><strong>Results: </strong>We identified 23 eligible studies, 22 applying health impact assessment, and 1 using epidemiological methods. These studies used different methods for the evaluation of emissions, dispersion, and exposure, and for the exposure-mortality risk functions for exposure to shipping emissions for 1-2 years. The estimated excess global all-cause mortality from six studies ranged between 1 and 5 deaths per 100,000 person-years. However, the heterogeneity of the methods and critical gaps in the reporting seriously limited the synthesis of the evidence on health and economic effects of shipping emissions. Sufficient spatial and temporal resolutions in both dispersion and exposure modeling, as well as presentation of uncertainties is needed. Health impact assessment should present the results with all the main risk functions and population attributable risks, and the magnitude of the effect should be expressed in excess number per a given person-time or per population size. Economic effects should also cover work productivity, mental well-being, and cognitive functions.</p><p><strong>Conclusions: </strong>We recommend that future studies should properly evaluate and report the uncertainty ranges and the confidence limits of the results. Rigorous studies are needed on multipollutant exposures, exposures from various source categories, and exposures attributed to various particulate matter measures. Studies should report the health impact measures in a format that facilitates straightforward inter-study comparisons. Further research should also specifically report the used grid spacings and resolutions and evaluate whether these are optimal for the task.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141299592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Socio-environmental externalities of sewage waste management. 污水废物管理的社会环境外部效应。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-20 DOI: 10.1016/j.scitotenv.2024.174109
Camila da Silva Serra Comineti, Madalena Maria Schlindwein, Paulo Henrique de Oliveira Hoeckel
{"title":"Socio-environmental externalities of sewage waste management.","authors":"Camila da Silva Serra Comineti, Madalena Maria Schlindwein, Paulo Henrique de Oliveira Hoeckel","doi":"10.1016/j.scitotenv.2024.174109","DOIUrl":"10.1016/j.scitotenv.2024.174109","url":null,"abstract":"<p><p>Conventional sewage management is expensive and inefficient, putting the environment and public health at risk, making access to sewage services difficult for everyone. Reusing sewage waste has agricultural and economic potential, but can contain harmful contaminants if not treated properly. This review is based on the hypothesis that the destination of sewage waste generates environmental and social externalities, which have not yet been widely compared. With the aim of identifying, from the literature, the socio-environmental externalities generated by different sewage waste management approaches, a systematic review of the literature was carried out, including 244 documents, with 50 % of these discussing impacts of conventional treatment and 37 % analyzing the reuse of waste. The main impacts and externalities were evaluated in three situations: untreated sewage, treated sewage, and reused waste. The results indicate that sewage waste has an underutilized economic value and can generate revenue, reduce operational costs and electricity expenses. Six negative externalities generated by conventional sewage treatment were identified: health costs; environmental cleaning; carbon offsetting; damage to tourism; damage to fishing and agriculture; and real estate depreciation. In reuse, there is a risk of two negative externalities: health costs and environmental cleaning, but two positive externalities were also identified: the reduction of phosphate rock mining and the neutralization of carbon credits. The complexity of the transition to sustainable sewage treatment practices is highlighted given the lack of consensus on the safe use of sewage waste, the lack of regulatory standardization, implementation costs and differences in regional parameters, highlighting the need for preliminary experimentation in a multidisciplinary and contextualized approach, considering comparative externalities among the available sewage waste management possibilities.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141439942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Effect of temperature, salinity and nutrients on the growth and toxin content of the dinoflagellate Gymnodinium catenatum from the southwestern Mediterranean. 温度、盐度和营养物质对地中海西南部甲藻 Gymnodinium catenatum 的生长和毒素含量的影响。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-19 DOI: 10.1016/j.scitotenv.2024.174094
Hicham Aboualaalaa, Benlahcen Rijal Leblad, Mohammed L'Bachir Elkbiach, Mustapha Ibghi, Rachid Boutaib, Niama Maamour, Veronique Savar, Estelle Masseret, Eric Abadie, Jean Luc Rolland, Zouher Amzil, Mohamed Laabir
{"title":"Effect of temperature, salinity and nutrients on the growth and toxin content of the dinoflagellate Gymnodinium catenatum from the southwestern Mediterranean.","authors":"Hicham Aboualaalaa, Benlahcen Rijal Leblad, Mohammed L'Bachir Elkbiach, Mustapha Ibghi, Rachid Boutaib, Niama Maamour, Veronique Savar, Estelle Masseret, Eric Abadie, Jean Luc Rolland, Zouher Amzil, Mohamed Laabir","doi":"10.1016/j.scitotenv.2024.174094","DOIUrl":"10.1016/j.scitotenv.2024.174094","url":null,"abstract":"<p><p>The dinoflagellate Gymnodinium catenatum is considered the primary cause of recurrent paralytic shellfish toxins (PSTs) in shellfish on the Moroccan Mediterranean coasts. The impacts of key environmental factors on the growth, cell yield, cell size and PST content of G. catenatum were determined. Results indicated that increasing salinity from 32 to 39 and nitrate concentrations from 441 μM to 1764 μM did not significantly (ANOVA, P-value >0.63) modify the growth rate of the studied species. Gymnodinium catenatum exhibited the highest growth rate at 24 °C. Cells arrested their division at 15 °C and at ammonium concentration above 441 μM, suggesting that this nitrogen form is toxic for G. catenatum. Furthermore, G. catenatum was unable to assimilate urea as a nitrogen source. In G. catenatum cells, eight analogues of saxitoxin were detected, belonging to the N-sulfocarbamoyl (C1-4, B1 and B2) and decarbamoyl (dc-GTX2/3) toxins. C-toxins contributed 92 % to 98 % of the molar composition of the PSTs. During the exponential growth, C2 tended to dominate, while C3 prevailed during the stationary phase. Toxin content per cell (ranging from 5.5 pg STXeq.cell<sup>-1</sup> to 22.4 pg STXeq.cell<sup>-1</sup>) increased during the stationary growth phase. Cell toxin content increased with the concentrations of nitrate, ranging from 12.1 pg STXeq.cell<sup>-1</sup> at 441 μM to 22.4 pg STXeq.cell<sup>-1</sup> at 1764 μM during the stationary growth phase. The toxin content of G. catenatum showed the highest values measured at the highest tested temperatures, especially during the stationary phase, where toxicity reached 17.8 pg STXeq.cell<sup>-1</sup> and 16.4 pg STXeq.cell<sup>-1</sup> at 24 °C and 29 °C, respectively. The results can help understand the fluctuations in the growth and PST content of G. catenatum in its habitat in response to changing environmental variables in the Mediterranean Sea when exposed to increases in warming pressure and eutrophication.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":null,"pages":null},"PeriodicalIF":8.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141436426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Automated machine learning-aided prediction and interpretation of gaseous by-products from the hydrothermal liquefaction of biomass. 机器学习辅助自动预测和解释生物质热液液化产生的气态副产品。
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2024-10-01 Epub Date: 2024-06-20 DOI: 10.1016/j.scitotenv.2024.173939
Weijin Zhang, Zejian Ai, Qingyue Chen, Jiefeng Chen, Donghai Xu, Jianbing Cao, Krzysztof Kapusta, Haoyi Peng, Lijian Leng, Hailong Li
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