AIMS Environmental Science最新文献

Radioactive waste management and disposal – introduction to the special issue 放射性废物的管理和处置-特刊简介

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023007

M. Sancho

引用次数: 0

Evaluation of the physicochemical parameters on the water quality of the major rivers of Zamboanga del Norte, Philippines 菲律宾北三宝颜主要河流水质理化参数评价

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023022

Romie D. Laranjo, Ma.Rio Naguit, Farida C. Jamolod, Kristine Gladys E. Jambre, Norma I. Cabornay, Victor B. Bernido, Maricon Denber S. Gahisan

{"title":"Evaluation of the physicochemical parameters on the water quality of the major rivers of Zamboanga del Norte, Philippines","authors":"Romie D. Laranjo, Ma.Rio Naguit, Farida C. Jamolod, Kristine Gladys E. Jambre, Norma I. Cabornay, Victor B. Bernido, Maricon Denber S. Gahisan","doi":"10.3934/environsci.2023022","DOIUrl":"https://doi.org/10.3934/environsci.2023022","url":null,"abstract":"The province of Zamboanga del Norte is endowed with ample water resources which are the primary sources of domestic water for the people in the area. Nevertheless, these water resources face several man-made and industrial activities that generate unwanted pollution. In this study, the physicochemical characteristics of the major rivers of Zamboanga del Norte, Philippines were investigated to know the present condition and assess the overall water quality. The physicochemical parameters that were investigated includes pH, temperature, nitrate-nitrogen (NO3-N), total suspended solids (TSS), total phosphates ($ {mathrm{P}mathrm{O}}_{4}^{2-} $) and total mercury (Hg). The results of the water analyses revealed that the pH, temperature, nitrate as NO3-N and the total Hg were within the acceptable range prescribed by Department of Environment and Natural Resources (DENR) and World Health Organization (WHO). However, there was a significant increase of the total suspended solids (TSS) concentrations of 138±58.9,142.3±36.6 and 243±9.5 mg/L, respectively from downstream, midstream and upstream of Sindangan river. The total suspended solids (TSS) concentrations exceeded the permissible limit of 25–65 mg/L recommended by Department of Environment and Natural Resources (DENR). Furthermore, the data showed that all values of the total phosphates for all the river systems exceeded the prescribed limit. Thus, to maintain the water quality of these rivers, proper monitoring and government intervention are very much required.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70232128","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}

引用次数: 1

Long-term economic impacts of coastal floods in Europe: a probabilistic analysis 欧洲沿海洪水的长期经济影响:一个概率分析

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023033

Ignazio Mongelli, Michalis Vousdoukas, Luc Feyen, Antonio Soria, Juan-Carlos Ciscar

{"title":"Long-term economic impacts of coastal floods in Europe: a probabilistic analysis","authors":"Ignazio Mongelli, Michalis Vousdoukas, Luc Feyen, Antonio Soria, Juan-Carlos Ciscar","doi":"10.3934/environsci.2023033","DOIUrl":"https://doi.org/10.3934/environsci.2023033","url":null,"abstract":"<abstract> <p>In this article we quantify the long-term economic impacts of coastal flooding in Europe. In particular, how the direct coastal damages generate long-term economic losses that propagate and compound throughout the century. A set of probabilistic projections of inundation-related direct damages (to residential buildings, firms' physical assets and agriculture production) is used as an exogenous shock to a dynamic stochastic economic model. The article considers explicitly the uncertainty related to the economic agents' behaviour and other relevant macroeconomic assumptions, i.e., how would consumers finance the repairing of their homes, how long does it take for a firm to reconstruct, whether firms decide to build-back-better after the inundation and possibly compensate the losses with a productivity gain. Our findings indicate that the long-term impacts of coastal floods could be larger than the direct damages. Under a high emission scenario (RCP8.5) the EU27 plus UK could lose every year between 0.25% and 0.91% of output by 2100, twice as much as the direct damages. The welfare losses present a strong regional variation, with the South (Bulgaria, Greece, Italy, Malta, Portugal and Spain), and United Kingdom (UK) plus Ireland regions showing the highest damages and a significant part of the population that could suffer significant welfare losses by the end of the century.</p> </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135106057","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}

引用次数: 0

Are we doing the same? A worldwide analysis of business commitment to the SDGs 我们也在做同样的事情吗?对企业对可持续发展目标承诺的全球分析

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023025

Sónia Monteiro, Víctor Amor‐Esteban, Kátia Lemos, Verónica Ribeiro

{"title":"Are we doing the same? A worldwide analysis of business commitment to the SDGs","authors":"Sónia Monteiro, Víctor Amor‐Esteban, Kátia Lemos, Verónica Ribeiro","doi":"10.3934/environsci.2023025","DOIUrl":"https://doi.org/10.3934/environsci.2023025","url":null,"abstract":"The COVID-19 pandemic has set back progress toward the 2030 Agenda. This raises concerns about the ability to achieve the Sustainable Development Goals (SDGs) as outlined in this global action plan. The responsibility to act to protect the planet, eradicate poverty and improve the current and future situations of people around the world requires the commitment of all actors, especially the public and private sectors. The objective of this paper is twofold. First, it aims to demonstrate the level of business commitment to the 2030 Agenda at a global level in a post-COVID period (2020–2021). Second, it aims to analyse whether this commitment, in general, and for each of the SDGs, is determined by the institutional context in which companies operate, as associated with the regulatory frameworks and cultural values of the different continents and countries (coercive and normative isomorphism). Based on a sample of the world's leading listed companies, i.e. 8,201 observations for the period of 2020–2021, the multivariate statistical technique HJ-biplot was applied to analyse whether business commitment to the 2030 Agenda is determined by the institutional context of the companies. The results show significant differences in the level of business commitment to sustainable development across regions and countries, as well as in the prioritisation of the SDGs. Countries in Asia (the Philippines) and Europe (Spain and Portugal) stand out as leaders, with the highest levels of SDG commitment. The USA and Qatar show the lowest engagement in business contribution to the SDGs. SDG 8, SDG 13 and SDG 12 appear as the top three priorities for companies in all countries. The results show that, in countries characterised by collectivism and feminism and with strong legal systems (civil law countries), companies are under greater pressure to adopt sustainable practices, which enables countries to improve their commitment to the SDGs.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231704","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}

引用次数: 2

Evaluation of river water quality in a tropical South Sumatra wetland during COVID-19 pandemic period COVID-19大流行期间热带南苏门答腊湿地河流水质评价

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023010

Muhammad Rendana, Yandriani, Muhammad Izzudin, Mona Lestari, M. I. Fattullah, Jimmy Aldian Maulana

{"title":"Evaluation of river water quality in a tropical South Sumatra wetland during COVID-19 pandemic period","authors":"Muhammad Rendana, Yandriani, Muhammad Izzudin, Mona Lestari, M. I. Fattullah, Jimmy Aldian Maulana","doi":"10.3934/environsci.2023010","DOIUrl":"https://doi.org/10.3934/environsci.2023010","url":null,"abstract":"The COVID-19 outbreak affected the world badly in this 21st century leading to the closure of all types of anthropogenic activities. It is declared that there was an environmental betterment in names of water quality and air quality during the COVID-19 period. In this study, we analyzed the improvement in water quality by evaluating the suspended particulate matter (SPM) using the remote sensing technique in a tropical South Sumatra wetland i.e., Musi River in Southern Sumatra, Indonesia. The SPM values were estimated from Landsat 8 images Level-2 product. A quantitative and spatial analyses of before (20th May 2019), during (22nd May 2020), and after COVID-19 (28th May 2022) periods were also calculated. Results revealed that the mean SPM values during COVID-19 period (4.56 mg/L) were lower than that before COVID-19 period (8.33 mg/L). Surprisingly, SPM showed an increase of 54% in SPM values after COVID-19 period, compared with during COVID-19 period. The role of human activities including industrial and domestic wastes during the restriction period was the main reason for alteration of pollution loads in the river. Outputs of this study can be used to arrange policies for the sustainable management of aquatic environments and water resources.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231857","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}

引用次数: 0

Bioleaching of critical metals using microalgae 利用微藻进行关键金属的生物浸出

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023013

S. Mukherjee, Sharanya Paul, S. Bhattacharjee, Somava Nath, Upasana Sharma, Sonali Paul

引用次数: 0

Spanish business commitment to the 2030 Agenda in uncertain times 西班牙企业在不确定时期对2030年议程的承诺

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023015

Francisco M. Somohano-Rodríguez, F. David, Tânia‐Cristina Azevedo

{"title":"Spanish business commitment to the 2030 Agenda in uncertain times","authors":"Francisco M. Somohano-Rodríguez, F. David, Tânia‐Cristina Azevedo","doi":"10.3934/environsci.2023015","DOIUrl":"https://doi.org/10.3934/environsci.2023015","url":null,"abstract":"Sustainability has become strategic since companies are aware that they must make a positive contribution to society and the environment in which they operate. At the same time, alliances have been formed and pacts have been made among nations to attempt to solve the social, economic and environmental problems that today's society faces. This is the case of the UN's 2030 Agenda and the Sustainable Development Goals (SDGs). This action plan entails the development of different initiatives to help face the challenges of this century, which have increased notably with the COVID-19 pandemic. The objective of this study is to carry out an analysis of Spanish companies' commitment to the 2030 Agenda and the SDGs and verify what types of activities they propose to ratify their commitment in an uncertain period for firms. For a sample of 100 observations of Spanish firms in 2020 and 2021, we evidence that SDGs 4 (Quality education), 8 (Decent work and economic growth), 9 (Industry, innovation, and infrastructure), 13 (Climate action) and 17 (Partnerships for the goals) have been adopted by many companies, which have presented initiatives, projects and programmes to achieve their goals. Commitment to the SDGs had a positive evolution in 2021, i.e., firms created economic value, protected the environment and contributed to greater social well-being. Our results show companies' preferences in terms of stakeholders as their SDGs' actions focus on women, older people, young people, workers and trade unions, local governments and researchers in issues related to climate change. The paper contributes with a global assessment of companies' initiatives and helps to determine the impact of uncertain environments on business commitments to the 2030 Agenda.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231949","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}

引用次数: 0

Experimental evaluation of lime spray drying for SO2 absorption 石灰喷雾干燥吸附SO2的实验评价

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023019

L. Koech, H. Rutto, T. Seodigeng

{"title":"Experimental evaluation of lime spray drying for SO2 absorption","authors":"L. Koech, H. Rutto, T. Seodigeng","doi":"10.3934/environsci.2023019","DOIUrl":"https://doi.org/10.3934/environsci.2023019","url":null,"abstract":"This paper presents the findings of an experimental investigation on the performance of a laboratory-scale spray dryer involving flue gas desulfurization. Using commercial hydrated lime as a sorbent, a systematic set of experiments were performed to evaluate SO2 absorption capacity of the spray dryer. The experimentation involved accurate measurement of the spray drying characteristics, such as temperature and SO2 concentration along the spray chamber, by varying the input and output variables. Tests were done to investigate the effects of spray characteristics, i.e., inlet gas phase temperature (120–180 ℃) and calcium-to-sulfur ratio (1–2.5), on SO2 removal efficiency. The performance of the spray dryer was further evaluated based on the degree of conversion of calcium (sorbent utilization) after SO2 absorption. Results indicated an increase in SO2 removal efficiency by increasing the stoichiometric ratio and decreasing the temperature. Absorption efficiency of SO2 beyond 90% was achieved at a stoichiometric ratio of 2.5. A high degree of conversion of calcium was realized at low stoichiometric ratios, with a maximum utilization of 94% obtained at a stoichiometric ratio of 1.5. The analysis of the final desulfurization product revealed the presence of sulfite with better conversion achieved at a stoichiometric molar ratio of 1.5. A significant amount of unreacted sorbent (63.43%) was observed at a stoichiometric ratio of 2, while samples collected at a stoichiometric ratio of 1.5 had the lowest concentration of unreacted Ca[OH]2 (41.23%).","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70232048","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}

引用次数: 0

Theory of planned behavior to understand pro-environmental behavior among Universiti Malaya students 计划行为理论以了解马来亚大学学生的亲环境行为

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023038

Grace Phang, Zul Ilham

{"title":"Theory of planned behavior to understand pro-environmental behavior among Universiti Malaya students","authors":"Grace Phang, Zul Ilham","doi":"10.3934/environsci.2023038","DOIUrl":"https://doi.org/10.3934/environsci.2023038","url":null,"abstract":"<abstract> <p>Due to industrialization and urbanization, the world is experiencing environmental degradation at an alarming rate. Irresponsible human behaviors have caused environmental concerns that are drastically affecting the natural ecosystem. To ensure a sustainable future for all, pro-environmental behavior should be practiced among university students to protect and conserve the environment. The objective of the study is to determine the key factors affecting pro-environmental behavior among Universiti Malaya (UM) students. A theoretical framework, theory of planned behavior (TPB), was introduced to examine whether environmental attitudes, subjective norms and perceived behavioral control have significant effects on intention and on pro-environmental behavior. Data collected from 394 respondents via online questionnaire was then examined using Statistical Package for the Social Sciences (SPSS). The results show that environmental attitude, subjective norm and perceived behavioral control have significant impact on the intention to adopt pro-environmental behavior among UM students. The results indicate that perceived behavioral control did not significantly influence pro-environmental behavior among UM students. The study also revealed that no significant difference was shown in gender and study background towards pro-environmental behavior. These findings assist higher education institutions in formulating polices, strategies and planning to enhance environmental behavior among the students. They also offer new insights and comprehensive information for researchers in conducting research related to environment behavior.</p> </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135318423","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}

引用次数: 0

The impact of shared-production and remanufacturing within a multi-product-based flexible production system 基于多产品的柔性生产系统中共享生产与再制造的影响

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023016

{"title":"The impact of shared-production and remanufacturing within a multi-product-based flexible production system","authors":"","doi":"10.3934/environsci.2023016","DOIUrl":"https://doi.org/10.3934/environsci.2023016","url":null,"abstract":"Remanufacturing industry gives an opportunity to rework defective products from a production system and make them useful again. When an industry remanufactures multiple similar types of products, every type of product goes through the same procedure repetitively. Repetition of the same procedure for similar products causes the overuse of a machine. This study investigates a flexible production system to reduce the overuse of machines for repetitive tasks. A two-stage flexible production system is considered where the common parts of multiple products are produced and remanufactured in the Stage 1. Continuing from Stage 1, the rest product-specific production of each product and remanufacturing processes are completed in Stage 2. Transportation of products uses a multiple delivery policy. This study aims to optimize the cycle time for the production process along with the production rate for Stages 1 and 2. The model is solved by a classical optimization technique and numerical results find the minimum cost of the remanufacturing system. A linear along with non-linear relationship effect of the shared-production process on the production cost are discussed. Results show that the two-stage production system with a shared-production process is cost-efficient and reduce the cycle time.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231966","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}

引用次数: 1