环境科学与生态学最新文献

{"title":"Transfer of pesticides and metabolites in corn: Production, processing, and livestock dietary burden.","authors":"Fengjiao Hao, Xiaoqing Wang, Feixiang Ma, Ran Wang, Fengshou Dong, Xinglu Pan, Xiaohu Wu, Yongquan Zheng, Jun Xu","doi":"10.1016/j.scitotenv.2024.176932","DOIUrl":"10.1016/j.scitotenv.2024.176932","url":null,"abstract":"<p><p>Corn stover is widely used in livestock feed but has received limited attention regarding its potential risks. In this study, pesticide residues were monitored across 12 provinces in China, and terminal residues of four pesticides, chlorantraniliprole, thiamethoxam, epoxiconazole, and pyraclostrobin, were tested. In addition, the silage processing experiment was conducted. All processing factors (PF) were <1, indicating pesticide degradation. The physicochemical properties of pesticides, especially log P, were related to degradation efficiency. Pesticides with higher log P values showed higher PFs (0.43 to 0.85), indicating lower degradation efficiency. The dietary burden of livestock before and after silage processing was calculated using OECD livestock dietary burden calculator. Results showed that after silage fermentation, the dietary burden was reduced by 28.8 % to 79.2 %. Throughout the entire production and processing process, the fastest degradation of all pesticides in whole corn was primarily observed from the pesticide application time to the harvest time, with some pesticides also showing accelerated degradation during subsequent processing stages. Therefore, in actual production, especially for pesticides which are difficult to degrade, appropriate extension of the safety interval or selection of suitable processing methods can be taken to further reduce pesticide residues in agricultural products.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"176932"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492433","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}

{"title":"Understanding and estimating the role of large-scale seaweed cultivation for carbon sequestration on a global scale over the past two decades.","authors":"Hongtian Luo, Jinling Li, Songguang Xie, Yufeng Yang","doi":"10.1016/j.scitotenv.2024.176966","DOIUrl":"10.1016/j.scitotenv.2024.176966","url":null,"abstract":"<p><p>Seaweeds, as marine photosynthetic organisms, are harvested by humans from the wild or through cultivation for various production purposes and to provide a range of marine ecosystem services, including nutrient removal, oxygen production, and carbon sequestration. The potential use of cultivated seaweed in mitigating carbon dioxide (CO₂) has been extensively proposed in conjunction with commercial seaweed production worldwide. This study aims to assess the annual potential and benefits of cultivated seaweed in reducing and fixing anthropogenic CO₂. Over the past two decades (2000-2019), global seaweed production has seen significant growth. The total output of cultivated seaweed reached 407.4 × 10⁷ tons (t), with coastal mariculture removing 4.26 × 10⁷ t of carbon annually and wild capture removing 2.24 × 10⁶ t. The recalcitrant dissolved organic carbon (RDOC, 549.88-621.60 × 10⁴ t) plays a significant role in the carbon sinks of seaweed cultivation. The substantial benefits of carbon sink resulting from the formation of RDOC from seaweed make up a considerable proportion in the calculation of carbon sequestration and sink enhancement benefits in large-scale seaweed cultivation. The sizable carbon sink base of seaweed cultivation (8631.90-9567.37 × 10⁴ t) results in significant carbon fixation benefits. The total economic value of carbon sequestration and oxygen production was estimated at $70.36 ± 1.52 billion, with an annual average benefit of $3.52 ± 1.70 billion. Increasing the area and yield available for cultivated seaweed has the potential to enhance biomass production, carbon accumulation, and CO₂ drawdown. It is crucial to emphasize the need for improved communication regarding the essential criteria for the feasibility of CO₂ removal (CDR), with a focus on conducting life cycle assessments (LCA) when utilizing marine processes in the present and future work. The sustainable development of the seaweed cultivation industry not only ensures that Asian-Pacific countries remain leaders in this field but also provides an effective yet overlooked solution to excessive CO₂ emissions worldwide.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"176966"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492436","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}

{"title":"Unveiling the mechanism of the effect of polyethylene microplastics on phenanthrene degradation in agricultural soils through DNA-based stable isotope probing.","authors":"Weiping Mei, Longfei Jiang, Mengke Song, Jiangqiao Bao, Jibing Li, Chunling Luo","doi":"10.1016/j.scitotenv.2024.177259","DOIUrl":"10.1016/j.scitotenv.2024.177259","url":null,"abstract":"<p><p>Polyethylene microplastics (MPs) derived from plastic mulch films are ubiquitous in agricultural soils. However, the mechanism underlying the effect of MPs on the degradation of polyaromatic hydrocarbons remains unclear. In this study, we investigated the influence of MPs amendment on the profiles of active microbes involved in phenanthrene (PHE) degradation in agricultural soils using DNA-based stable isotope probing (SIP) combined with high-throughput sequencing. Results showed that biodegradation dominated the removal of PHE, and MPs promoted the PHE degradation rate from 79.0 % to 92.3 % in agricultural soils. The addition of MPs could stimulate and prolong the activities of original active microbes responsible for PHE degradation including the genera Flavisolibacter and Nocardioides. Furthermore, the presence of MPs could also recruit novel active microbes, including Gaiella, Methylopila, JGI_0001001-H03, and unclassified Intrasporangiaceae, to participate in PHE degradation. Notably, Flavobacterium, Methylopila, Lysobacter, and unclassified Blastocatellaceae were directly linked with PHE degradation for the first time by SIP. This study provides novel insights into the mechanism underlying the effect of MPs on PHE degradation and enhances our comprehensive understanding of the co-contamination of MPs and PHE in agricultural soils.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"177259"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142542703","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}

{"title":"Organophosphate esters in vehicle interior dust from Chinese urban areas: What are the influencing factors of the occurrence?","authors":"Kaixuan Wu, Rui Chen, Yanling Qiu, Hua Zhang, Zhiliang Zhu, Daqiang Yin","doi":"10.1016/j.scitotenv.2024.177272","DOIUrl":"10.1016/j.scitotenv.2024.177272","url":null,"abstract":"<p><p>Organophosphate esters (OPEs) are a class of semi-volatile organic compounds frequently used to various products as flame retardants and plasticizers. As emerging pollutants, OPEs have attracted significant attention due to their potential impacts on human health and ecosystems. This study investigated the occurrence of OPEs in vehicle interior dust across 36 cities in China. The primary aims were to explore the correlations among OPE pollutants, identify potential emission sources, and examine the key factors influencing their distribution. The OPE concentrations ranged from 5450 ng/g to 63,700 ng/g, with the content of three categories of OPEs as follows: ΣChlorinated-OPEs (median: 17420 ng/g) > ΣAlkyl-OPEs (median: 3880 ng/g) > ΣAryl-OPEs (median: 1490 ng/g). In northern China, the aggregate concentration of OPEs in vehicle interior dust demonstrated higher levels compared to those in the western and mid-southeastern region, with the later two appeared to be comparable to each other. Coastal and inland cities displayed variations in OPE levels, with different representative OPEs. The occurrence of OPEs in vehicle interior dust was closely associated with regional economic development levels, motor vehicle parc, and road density. In contrast to other urban areas, first-tier cities showed the highest aggregate levels of OPEs in vehicle interior dust, with a significant increase observed specifically in the concentrations of Alkyl-OPEs and Aryl-OPEs.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"177272"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142542710","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}

{"title":"Carbon availability regulates fungal and bacterial populations in halophilic aerobic granular sludge treating saline wastewater.","authors":"Hui-Kai Liang, You-Wei Cui, Zhen-Ying Li, Hui-Juan Yan, Xu Wang","doi":"10.1016/j.scitotenv.2024.177103","DOIUrl":"10.1016/j.scitotenv.2024.177103","url":null,"abstract":"<p><p>Fungal overgrowth in halophilic aerobic granular sludge (HAGS) is a severe problem, leading to granule disintegration. However, it is still mostly unclear how to control fungal overgrowth. This study explored the effects of carbon availability in saline wastewater with a salinity of 20 g/L on fungal and bacterial population sizes, community compositions, and network interactions in HAGS by manipulating different carbon-to‑nitrogen ratios (C/N). Bacterial population size increased from 6.42 × 10⁶ copies/ng DNA to 8.67 × 10⁶ copies/ng DNA as the C/N ratio increased from 4 to 20. In contrast, fungal population size decreased from 1.24 × 10⁶ copies/ng DNA to 8.05 × 10³ copies/ng DNA. The maximum removal rate of ammonia by fungi decreased from 5.02 ± 0.04 mg·L^-1·h^-1 to 1.72 ± 0.30 mg·L^-1·h^-1. Nitrosomonas, Thauera, and Planktosalinus competed for nutrients with the dominant fungi Cosmospora, being in antagonism. Carbon availability in the saline wastewater could regulate the population of bacteria and fungi, laying a theoretical foundation for controlling HAGS disintegration.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"177103"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142566877","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}

{"title":"Complex interactions of rare earth elements in aquatic systems: Comparing observed and predicted cellular responses on Mytilus galloprovincialis.","authors":"Carla Leite, Madalena Andrade, João Pinto, Amadeu M V M Soares, Montserrat Solé, Eduarda Pereira, Rosa Freitas","doi":"10.1016/j.scitotenv.2024.176608","DOIUrl":"10.1016/j.scitotenv.2024.176608","url":null,"abstract":"<p><p>Recent societal and technological developments have led to new sources of contamination, particularly from electronic waste (e-waste). The rapid increase in e-waste, combined with inadequate disposal and recycling practices has resulted in rising levels of hazardous substances in aquatic systems, including rare-earth elements (REEs). However, the effects of REEs on aquatic organisms remain poorly understood. This lack of understanding is concerning since REEs can simultaneously appear in aquatic systems. Thus, this study aimed to evaluate the impacts of Yttrium (Y), Lanthanum (La), and Gadolinium (Gd), individually and as mixtures on the mussel species Mytilus galloprovincialis. Biomarkers related to metabolism, energy reserves, defence enzymes, redox balance, cellular damage, and neurotoxicity were analyzed. The results obtained showed that Y alone caused minimal stress, while Gd, La, and their mixtures induced from moderate to severe stress, increasing metabolic activity, and enzyme responses. This study highlights the ecological impacts of REEs mixtures on aquatic organisms. The complex interactions and additive effects, especially with Gd, underline the need for further research on contaminant mixtures.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"176608"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142338517","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}

{"title":"Hydrodynamics- and remote sensing-based model for estimating the effects of cohesive sediment transport on lagoon siltation in Southwestern Taiwan.","authors":"Hsiao-Wen Wang, Benedict Andrew Dhian","doi":"10.1016/j.scitotenv.2024.176853","DOIUrl":"10.1016/j.scitotenv.2024.176853","url":null,"abstract":"<p><p>This study investigates localized siltation in the Cigu Lagoon, Southwestern Taiwan, using an integrated approach of hydrodynamic modeling and remote sensing. In regions where in situ data is scarce, remote sensing provides critical complementary data inputs for our sediment model. We employed a multilayered mud sediment model, incorporating initial suspended sediment concentration (SSC) data derived from Landsat imagery, to identify the morphological changes taking place in the lagoon. Over the past few decades, sandbar migration and sedimentation have led to a significant shrinkage of the Cigu Lagoon, which is now at risk of disappearing if a full understanding of the underlying factors is not reached. The loss of the lagoon would have severe implications for the local ecosystem and habitat, as well as for the fishermen who rely on the lagoon for their livelihoods. Our results showed that sedimentation in the Cigu Lagoon is a compounded consequence of the action of the tidal cycle and of waves. Throughout the simulation period, the SSC in the Cigu Lagoon ranged from 1 g m ^-3 to 50 g m ^-3. The annual siltation rate of the lagoon due to cohesive sediment transport was 0.82 cm. The simulation results showed that the siltation mainly occurred during the winter, with the dominant factor being the frequent strong waves at this time of year. This study suggests that a management plan for the Cigu Lagoon must be devised and implemented, and that remote sensing and hydrodynamic modeling are valuable tools in communicating about the complex processes involved in a sedimentary system and informing relevant decision-making at the stage of management.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"176853"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405857","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}

{"title":"Interventions of citizen science for mitigation and management of plastic pollution: Understanding sustainable development goals, policies, and regulations.","authors":"Rahul Kumar Sinha, Rakesh Kumar, Shyam S Phartyal, Prabhakar Sharma","doi":"10.1016/j.scitotenv.2024.176621","DOIUrl":"10.1016/j.scitotenv.2024.176621","url":null,"abstract":"<p><p>Plastic pollution in the natural environment has been overlooked, which leads to potential risks to human health and wildlife. This paper provides an overview on citizen science approach to mitigate and manage plastic pollution in natural environments. Also, this paper highlights the importance of citizen science in raising public awareness of environmental issues and promoting sustainable practices. Case studies and different projects, such as \"Plastic Pirates\", \"Litterati\", \"Trash Hunter\", \"International Pellat Watch\", and many more projects on the role of citizen scientists are summarized, which aims to monitor and collect plastic resin pellets from different ecosystems, for example, beaches, seas, and rivers and also engage various stakeholders, for example, citizen scientists, students, academic and research organizations, non-profits, government agencies, industry, and local communities. Additionally, this paper discusses different methodologies, such as surveys and sampling approaches, using mobile apps, instruments and kits to collect information on plastic pollution. Importantly, it discusses the need for global partnerships and policies to address plastic waste management and prevent conflict. Likewise, this review emphasizes the citizen sciences and impacts of plastics on both aquatic and terrestrial ecosystems to conserve, preserve, and monitor biodiversity through citizen participation. This study also highlights the significance of community involvement, such as local, coastal, marginalized, or vulnerable communities, in environmental research and the potential benefits of citizen science programs. Overall, this paper concludes with insights into citizen science as a valuable resource tool for researchers, policymakers, and the public interested in understanding and addressing the problem of plastic pollution.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"176621"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405861","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}

{"title":"Integrating desertification control and wastewater treatment: Novel insights from the induction of artificial biocrusts using municipal wastewater-cultivated cyanobacterium.","authors":"Jingshang Xiao, Jianhua Ji, Zulin Zhang, Ling Xia, Shaoxian Song, Shubin Lan, Ashiwin Vadiveloo, María Luciana Montes, Li Wu","doi":"10.1016/j.scitotenv.2024.177049","DOIUrl":"10.1016/j.scitotenv.2024.177049","url":null,"abstract":"<p><p>Desertification and wastewater discharge are two global issues that severely threaten the sustainable use of available natural resources. This study aimed to explore the potential for transferring nutrients from municipal wastewater to drylands by inducing artificial biocrusts through the inoculation of wastewater-cultured Scytonema javanicum onto the sand surface in Gurbantunggut Desert. The results demonstrated that wastewater cultured S. javanicum effectively induced artificial biocrusts, achieving high photosynthetic biomass and nutrient accumulation (Chl-a, AP and OC) comparable to those induced by S. javanicum cultured in synthetic medium. In addition, the risk index (RI) value of 124.32 suggested a low ecological risk using wastewater cultured S. javanicum to induce artificial biocrusts. This study substantiates the feasibility of using municipal wastewater-cultured cyanobacteria to induce artificial biocrusts, thereby providing a dual benefit: enhancing soil stability in drylands and utilizing wastewater as a resource, thus presenting a significant stride towards the sustainable management of natural resources.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"955 ","pages":"177049"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492454","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}

{"title":"Trace elements and high sulfur levels in the blood of rehabilitated eastern Mediterranean Sea green sea turtles (Chelonia mydas).","authors":"Danny Morick, Netta Reem, Eran Lavy, Leila Soledade-Lemos, Dan Tchernov, Tal Starostinetsky-Malonek, Natascha Wosnick, Peleg Itay, Rachel Ann Hauser-Davis, Guy Ivgy, Yaniv Levy","doi":"10.1016/j.scitotenv.2024.176788","DOIUrl":"10.1016/j.scitotenv.2024.176788","url":null,"abstract":"<p><p>The Eastern Mediterranean Sea (EMS) exhibits high temperature and salinity, low levels of biologic production and is considered oligotrophic. Nonetheless, it is also a hotspot of biodiversity, with several important endangered flagship species, including several species of sea turtles. These turtles serve as bioindicators for the health of their ecologic systems, due to changes in diet, habitat and migration patterns that characterize different stages in their lives. This study covered 100 blood samples taken between 2008 and 2019 from 72 green sea turtles (Chelonia mydas) tested for 67 elements, some of which carry toxic potential. The turtles were treated at the Israeli Sea Turtle Rescue Center (ISTRC) after being rescued from sea, exhibiting a variety of health conditions and Injuries. The data were compared to similar studies worldwide and serve as a basis for monitoring the health status of the green sea turtles' EMS populations. The results of all animals presented noticeably high levels of sulfur - an order of magnitude higher than sea turtles from other locations around the world. This paper discusses the possible origins of this element, as well as its potential effects, while raising the question regarding the ability of these sea turtles to endure such sulfur levels.</p>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"176788"},"PeriodicalIF":8.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455103","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}