Environmental Research Communications最新文献

{"title":"Insights into the composition and properties of fly ash emissions from a municipal solid waste power plant","authors":"Tra Mai Ngo, Van Hung Hoang, Huu Tap Van, Hang Nguyen Thi Thuy, Hong Khuat Thi, Nghiem Thi Ha Lien, Nguyen Trong Nghia, Phan Thi Thanh Hang, Vu Duc Toan, Trinh Thi Tham, Nguyen Thi Hoa","doi":"10.1088/2515-7620/ad23f2","DOIUrl":"https://doi.org/10.1088/2515-7620/ad23f2","url":null,"abstract":"This study examines the fly ash from Soc Son municipal waste power plant (SMPP) and suggests ways to repurpose it to reduce its environmental impact. Fly ash from the Soc Son waste power plant has a gray color, spherical particles with a 5–103 <italic toggle=\"yes\">μ</italic>m diameter, and a high carbon and heavy metal content. Bermorite crystals can absorb and release heavy metals, making monitoring secondary pollutants during incineration crucial. The EDX analysis of fly ash from the Soc Son waste power plant revealed that it was predominantly contaminated with metal elements, with the highest percentage of calcium. The EDX was able to detect heavy metals in incinerator fly ash. The concentration of Zn in the fly ash exceeded QCVN 07:2009/BTNMT standards, indicating the high amounts of some elements that may be hazardous to the environment and human health. Using the SEM/EDX and XRF, the fly ash from the Soc Son landfill power plant was analyzed and discovered that it exceeds permissible limits for dangerous heavy elements. The most common inorganic elements are Ca, followed by Zn, Pb, Cd, and Ag. Fly ash is classed as hazardous waste due to its high concentration of heavy metals, which results from the combustion of municipal solid waste that has not been separated. Vietnam fights municipal solid waste incinerator fly ash production. Some nations stabilize fly ash to remove harmful components and use it in buildings. Stabilized fly ash makes unfired construction bricks and cement manufacturing components and combining fly ash with inorganic trash protects the environment.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"2 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139755164","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":"The utilization and contribution of timber and non-timber forest products to livelihoods under a changing climate in the Limpopo River Basin","authors":"Ephias Mugari, Nthaduleni S Nethengwe, Anesu Dion Gumbo","doi":"10.1088/2515-7620/ad23f0","DOIUrl":"https://doi.org/10.1088/2515-7620/ad23f0","url":null,"abstract":"Forest products contribute immensely to rural livelihoods and household income. However, their contribution to climate change adaptation in semi-arid areas, and the limited ecosystem management capacities of rural communities are poorly examined. We examined the influence and challenges of cash income derived from forest products on livelihoods and climate change adaptation using data from 130 household surveys, 20 participatory mapping exercises, several in-depth interviews, and field observations in the Limpopo Basin of Botswana. Households derived livelihoods and/or income from Mopane caterpillars, firewood, timber, palm plants, wild fruits, thatch, medicinal plants, natural dyes, natural pastures, and game meat. Mopane caterpillars, firewood, and other forest products featured in the top ten sources of household income and contributed weighted monthly income of BWP 1,647.27 ± 1,519.04, BWP 1,110.02 ± 1,980.05, and BWP 780.56 ± 1,360.32, respectively (US$1 ≈ BWP13.4). A higher proportion of households (62.3%) were in the low-income category, earning income below BWP5,000/month. Income derived from Mopane caterpillars and firewood made a significant difference between low-income and high-income households (p = 0.006). Generally, higher proportions of high-income households adopted climate change adaptation measures than proportions in the low-income category, indicating the influence of cash income on household adaptations. However, significant differences were only observed in cropland expansion, purchasing of supplementary livestock feed, drilling boreholes/wells, and use of drip irrigation (p &lt; 0.05). We discuss the potential threats, such as the unsustainable harvesting of forest products, caused by an increasing need for cash incomes and the interconnectedness with distant urban markets. Such threats add to the institutional and biophysical challenges, further limiting prospects for effective adaptation in the Limpopo Basin of Botswana. We call on the government to capacitate and strengthen traditional authorities—as custodians of local resources—in the regulation, management, and conservation of forest products to make them more sustainable adaptation options.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"2 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139755101","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":"Online misinformation during extreme weather emergencies: short-term information hazard or long-term influence on climate change perceptions?","authors":"Stefan Daume","doi":"10.1088/2515-7620/ad1b67","DOIUrl":"https://doi.org/10.1088/2515-7620/ad1b67","url":null,"abstract":"\u0000 Extreme weather events linked to climate change are becoming more frequent. The online public discourse on and during these events, especially on social media, attracts misinformation that can undermine short-term emergency responses, but can also be aimed at influencing long-term public perceptions of climate change. This contribution reviews existing research on online misinformation with the aim to understand the types, origins, and potential impacts of misinformation during extreme weather events like storms, floods, and wildfires. The screening of 289 publications reveals that there is scarce body of only 13 studies addressing this question. Relevant studies exploring online misinformation during extreme weather events rarely document misinformation immediately relevant for emergency responses and only recently link this to the discussion about climate change. The reviewed research provides however insights to derive a framework that can guide future research into this topic. Specifically, that misinformation in social media during environmental emergencies 1) cuts across domains and merges different areas of public interest, 2) cuts across temporal and geographical scales, and 3) needs to be studied as part of an interconnected online media landscape. Misinformation differs between emergency event types, can undermine the debate about climate change in diverse ways, appeal to completely different audiences and thus will likely require different responses and countermeasures. Structured research with comparable methodologies is urgently needed.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"2 5","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139381242","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":"Predicting willingness to pay and implement different rooftop strategies to characterize social perception of climate change mitigation and adaptation.","authors":"Erin Untereiner, S. Toboso-Chavero, Ana Vázquez Fariñas, Cristina Madrid‐López, Gara Villalba, Xavier Gabarrell Durany","doi":"10.1088/2515-7620/ad1b65","DOIUrl":"https://doi.org/10.1088/2515-7620/ad1b65","url":null,"abstract":"\u0000 With the latest IPCC report, dramatic global climate action must be taken immediately to limit global warming to 1.5 oC, or face more frequent and extreme weather events with catastrophic implications. Cities must invest in climate resilience development; however, government policies are only effective if they are supported by the society in which they serve. As such, this study aims to characterize the social perception of climate resilience development, in particular the implementation of sustainable urban rooftop strategies, to support policy makers and enable individual action. This was accomplished through the analysis of 1,100 answered surveys in Cerdanyola del Vallès (Spain), to assess one’s willingness to pay (WTP) and willingness to implement (WTI) rooftop strategies according to: 1. socio-demographical characteristics; 2. social perceptions and beliefs; and 3. surrounding land use and land cover, and vulnerabilities identified through temperature and normalized difference vegetation index (NDVI) maps. The results of this study found age played a significant role in predictability, with 18-39-year-olds being the most willing to pay and implement the various rooftop scenarios. However, our results uncovered societal inequality as those 85+ were the second group most interested in rooftop agriculture but the most financially restricted. Belief in the viability of rooftop strategies increased respondents WTP and WTI while having access to ones’ rooftop increased willingness to partake in rooftop food cultivation and enhance rooftop greenery. A new finding presented by this study is the quantifiable impact that urban greenery plays on increasing survey respondents WTP and WTI.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"3 4","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139381372","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":"Use of a forced convection solar dryer for the reduction of post-harvest losses: case of the “akikon” tomato variety in Benin (West Africa)","authors":"Armel Vitouley, Christophe G. Hounsokou, C. Kouchadé, G. Hounguè, G. K. N'Gobi, Julien Adounkpè, B. Kounouhéwa","doi":"10.1088/2515-7620/ad1b66","DOIUrl":"https://doi.org/10.1088/2515-7620/ad1b66","url":null,"abstract":"\u0000 The local variety tomato (Lycopercicum esculentum Mill) named \"akikon\" is one of the most consumed and widely cultivated fruiting vegetables in Benin Republic. In this work, we designed and built a dryer usable for limiting the frequent losses of the produced tomatoes. This paper analyzes the first results, obtained from the different experiments carried out with the developed dryer, in a context of forced convection. The results showed that increasing the temperature resulted in a shorter drying time and a brighter colour of the dried tomato. However, the temperature has no influence on the smell of the dried tomato. After a storage time of about 7-8 months, a colour of the dried product has changed from red to red-brown, indicating that the storage method still needs to be improved.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"45 8","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139382317","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":"Developmental effects on Daphnia magna induced by Titanium dioxide and Iron oxide mixtures","authors":"Amira Chorfi, R. Zebsa, S. Boudalia, H. Amari, Soufyane Bensouilah, Zinette Bensakhri, M. Djekoun, Samira Bensoltane","doi":"10.1088/2515-7620/ad19f2","DOIUrl":"https://doi.org/10.1088/2515-7620/ad19f2","url":null,"abstract":"\u0000 Developmental effects of a binary mixture of nanoparticles (NPs) composed of Titanium dioxide (TiO2) and iron oxide (Fe2O3) were identified in Daphnia magna using a chronic toxicity test. Survival, growth, reproduction, and age at first brood were measured throughout 21 days of exposure. Results from this study demonstrated that mixture exposure to NPs (TiO2 and Fe2O3) significantly affects the development of D. magna to maturation and disturbs the reproductive performance in a dose-dependent manner and beginning from the lower dose. Mortality recorded in control group (1 ± 0.365) was significantly lower than in experimental groups (6.94 ± 0.193, 7.19 ± 0.188, 7.62 ± 0.125, 7.62 ± 0.155 individual, in C1, C2, C3, and C4, respectively). Moreover, swimming performances (F4, 35 = 112.9, df = 4, p<0.0001) and heart rate (F4, 25 = 19.37, df = 4, p<0.0001) were also affected. In conclusion, the interaction of binary mixtures can exacerbate toxicological effects that have significant implications for appropriately assessing the ecotoxicological effects of emerging pollutants. Further investigation and the results reported in the present study will be useful in environmental policies.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"21 12","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139390324","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":"Possible impact of North Atlantic Sea Surface Temperature on decadal variability of dust activity in Gobi Desert","authors":"Yeonsu Park, Si-Wan Kim, Young-Min Yang, Kyoung‐Min Kim, M. Sung, Soon-Il An","doi":"10.1088/2515-7620/ad19f3","DOIUrl":"https://doi.org/10.1088/2515-7620/ad19f3","url":null,"abstract":"\u0000 Semiarid to arid regions located in north of China are known as one of the largest sources of dust aerosols in the globe. Previous studies demonstrated direct and indirect effects of atmospheric dust loading on climate. The surface and meteorological properties are known to be affecting dust entrainment process. In this study, we found decadal variations of dust occurrence in Gobi Desert with the period of ~24 years utilizing the data acquired at the surface meteorological stations. An analysis of reanalysis datasets shows significant correlations between February North Atlantic Sea Surface Temperature (NASST) and precipitation in Gobi Desert and Mongolia in the following summer, causing decadal variation of dust event frequency in subsequent spring over the region. Strong time-lagged correlation is shown to be linked to an atmospheric wave train pattern that initiated from the NASST region, affecting large-scale circulation, ultimately causing surface drought over Gobi Desert.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"84 20","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139389966","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":"What next for marine ecosystem management in Vietnam: Assessment of coastal economy, climate change, and policy implication","authors":"P. Q. Giang, Rajendra Khanal","doi":"10.1088/2515-7620/ad19a5","DOIUrl":"https://doi.org/10.1088/2515-7620/ad19a5","url":null,"abstract":"Vietnam is a coastal country with a coastline stretching more than 3,260 km. Marine resources are important for the development of Vietnam. In Vietnamese sea, there are about 20 typical ecosystems spreading over 1 million square kilometers in the East Sea consisting of mangrove forests, coral reefs, lagoons, seagrasses in intertidal areas and estuaries, and living species in 155,000 hectares, 1,300 square kilometers, 500 square kilometers, 16,000 hectares and 11,000 living species, respectively. At present, impact of climate change, socio-economic development, and environmental pollution are considered as the main causes of degradation of Vietnam’s marine ecosystems. This paper presents and discusses the pressure of socio-economic activities including industry, tourism, marine transportation and services, aquaculture and fishery on marine ecosystems. In Vietnam, compared to early 2000s a total of 12% of coral reefs, and 48% of other coral reefs are vulnerable to degradation. So far, about 100 species of marine life in Vietnam are at risk of being threatened due to over-exploitation and fishing. The seagrass-bed ecosystem is currently being degraded with only over 5,580 ha remaining. In some areas, such as Cat Ba, Ha Long, and Quang Nam, seagrass beds have almost no chance to recover naturally due to serious impacts from tourism and aquaculture activities. From the findings, orientations that aim at effective management and protection of marine ecosystem to cope with adverse impacts of anthropogenic activities, climate change and the pressure of socioeconomic development were proposed.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":" 21","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139144257","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":"High-performance deep transfer learning model with batch normalization based on multiscale feature fusion for tomato plant disease identification and categorization","authors":"R Ramya, P Kumar","doi":"10.1088/2515-7620/ace594","DOIUrl":"https://doi.org/10.1088/2515-7620/ace594","url":null,"abstract":"Deep learning and machine learning are cutting-edge methods for analysing images that have considerable potential. Artificial Neural Networks (A-NNs), one of the most well-known methods of computer intelligence, are now used in machine learning (ML) and deep transfer learning (DL) to raise plant production and quality. Identification and primary prevention of plant diseases at the appropriate time are essential for boosting productivity. Due to the phenomenon of minimally intense data in the background and foreground areas of the image, the extensive colour similarity between regions of unhealthy and normal leaves, the presence of noise in the sampling data, and changes in the location, size, and shape of plant leaf, it is difficult to correctly identify and classify plant diseases. In an effort to address these issues, a reliable technique for classifying plant diseases was developed by using a deep AlexNet CNN architecture as the main network with batch normalisation. In the three-step process, the first annotation is made to obtain the RoI (region of interest). The AlexNet CNN is therefore suggested for deep primary feature extraction in a constructed efficient network. The research demonstrates that the existing strategy is superior to more recent ones in terms of accuracy and dependability in recognising diseases in plants. Based on a deep transfer AlexNet CNN model, this research work developed a model for diseases identification and classification in plant leaves. It is trained using additional datasets that include a variety of plant leaf classifications and background images. From Plant Village and Kaggle, we gathered data on healthy and diseased tomato plant leaves. We are obtaining a near-balanced dataset containing ten different leaf disease kinds, such as bacterial, fungal, viral, and nutrient insufficiency. Ten classes have been considered for this research by gathering a dataset with associated images of the typical and abnormal tomato plant leaves. Considered in this work were the various labels for healthy and diseased tomato leaves, such as early blight, Bacterial spot, late bright mold, healthy, etc. Since deep CNN models have shown notable machine vision results, they are used in this case to diagnose and categorise plant illnesses from their leaves. As a result, the proposed CNN models can thus now be evaluated from confusion matrix using data analysis criteria, primarily focusing on metrics for evaluation like training and validation accuracy, loss, Recall, Precision, F1 score, processing speed, and performance.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"138 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139095974","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":"Chlorophyll bloom triggered by tropical storm Chedza at the southern tip of Madagascar Island","authors":"Qi Feng, Hao Shen, Guohao Zhu, Liqiong Zhang, Yaoyao Zhou, Haibin Lü","doi":"10.1088/2515-7620/ad1842","DOIUrl":"https://doi.org/10.1088/2515-7620/ad1842","url":null,"abstract":"\u0000 A phytoplankton bloom during the passage of Tropical Storm (TS) Chedza was observed at the southern tip of Madagascar on January 28, 2015. The mechanisms of the chlorophyll bloom were researched with satellite remote sensing data, reanalysis data and Argo buoy data. The results show that there was horizontal transport of chlorophyll-a (Chl-a) with the western coastal current of Madagascar and the South East Madagascar Current (SEMC). At the southern tip of Madagascar, there was a tilted anticyclonic eddy moving westward, which promoted the flow of nitrate at depths from 60 m to 100 m northward into Box A for a month. Simultaneously, the SEMC formed another anticyclonic eddy entering Box C. Following the passage of TS Chedza, cyclone vorticity in Box A increased continuously, and the upwelling became stronger with Ekman pumping. At the same time, the barrier layer weakened, the mixed layer deepened, and the thermocline decreased, which can uplift the nitrate to the upper ocean. After the passage of TS Chedza, sufficient photosynthetically active radiation (PAR) facilitated the Chl-a bloom in Box A. This study contributes to the assessment of the ecological impact of ocean eddies at the southern tip of Madagascar.","PeriodicalId":48496,"journal":{"name":"Environmental Research Communications","volume":"79 16","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945474","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}