Abstract Leaching behaviour is an important evidence of soil quality. The assessment of leaching of heavy metals from the contaminated soil is vital for environmental applications. However, leaching may differ in soil stabilised by various ratios of binders. In this study we measured leaching behaviour of soil contaminated by As, Cd, Co, Cr, Cu, Hg, Ni, Pb, V, Zn, methyl Hg, aliphatic compounds of hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and dissolved organic carbon (DOC). To evaluate leaching of these substances we tested the effects of changed amount of binder (120 kg and 150 kg) and binder ratios (70/30 %, 50/50 % and 30/70 %) added to soil samples. Soil was dredged from several stations in Ostrand area, SCA Sundsvall Ortvikens Pappersbruk. The results demonstrated a systematically decreasing leaching with the increased slag. The contribution of this research include: (i) devising systematic approach to extract information on leaching from stabilised soil collected from the coastal area of Bothnian Bay, (ii) developing a workflow for stabilising soils by various combination of Portland cement Basement CEM II/A-V (SS EN 197-1) and ground granulated blast furnace slag (GGBFS), Bremen type (SS EN 15167-1), (iii) determining water ratio and density for the untreated and stabilised soil and performing comparative analysis, (iv) evaluating chemical content of pollutants and toxic elements in the aggregated soil samples. Treatment of the contaminated soil by binders improved its parameters by the increased strength and decreased leaching of heavy metals and toxic elements.
淋滤行为是土壤质量的重要指标。重金属从污染土壤中浸出的评价对环境应用至关重要。然而，在不同比例的粘合剂稳定的土壤中，淋溶可能有所不同。研究了砷、镉、钴、铬、铜、汞、镍、铅、钒、锌、甲基汞、脂肪族烃、多环芳烃(PAHs)、多氯联苯(PCBs)和溶解性有机碳(DOC)污染土壤的淋滤行为。为了评价这些物质的浸出，我们测试了不同黏合剂用量(120 kg和150 kg)和黏合剂配比(70/ 30%、50/ 50%和30/ 70%)对土壤样品的影响。土壤是从osstrand地区的几个站点疏浚的，SCA sundsall Ortvikens Pappersbruk。结果表明，随着渣量的增加，浸出率逐渐降低。本研究的贡献包括:(i)设计一种系统的方法，从从博斯尼安湾沿海地区收集的稳定土壤中提取有关淋滤的信息;(ii)通过波特兰水泥基CEM ii / a - v (SS EN 197-1)和不莱梅型(SS EN 15167-1)的磨粒高炉渣(GGBFS)的各种组合来开发稳定土壤的工作流程;(iii)确定未经处理和稳定的土壤的水比和密度，并进行比较分析。(四)评价聚合土壤样品中污染物和有毒元素的化学含量。用粘结剂处理污染土壤后，土壤强度提高，重金属和有毒元素浸出减少，土壤参数得到改善。
{"title":"Leaching of Heavy Metals from Contaminated Soil Stabilised by Portland Cement and Slag Bremen","authors":"P. Lindh, Polina Lemenkova","doi":"10.2478/eces-2022-0039","DOIUrl":"https://doi.org/10.2478/eces-2022-0039","url":null,"abstract":"Abstract Leaching behaviour is an important evidence of soil quality. The assessment of leaching of heavy metals from the contaminated soil is vital for environmental applications. However, leaching may differ in soil stabilised by various ratios of binders. In this study we measured leaching behaviour of soil contaminated by As, Cd, Co, Cr, Cu, Hg, Ni, Pb, V, Zn, methyl Hg, aliphatic compounds of hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and dissolved organic carbon (DOC). To evaluate leaching of these substances we tested the effects of changed amount of binder (120 kg and 150 kg) and binder ratios (70/30 %, 50/50 % and 30/70 %) added to soil samples. Soil was dredged from several stations in Ostrand area, SCA Sundsvall Ortvikens Pappersbruk. The results demonstrated a systematically decreasing leaching with the increased slag. The contribution of this research include: (i) devising systematic approach to extract information on leaching from stabilised soil collected from the coastal area of Bothnian Bay, (ii) developing a workflow for stabilising soils by various combination of Portland cement Basement CEM II/A-V (SS EN 197-1) and ground granulated blast furnace slag (GGBFS), Bremen type (SS EN 15167-1), (iii) determining water ratio and density for the untreated and stabilised soil and performing comparative analysis, (iv) evaluating chemical content of pollutants and toxic elements in the aggregated soil samples. Treatment of the contaminated soil by binders improved its parameters by the increased strength and decreased leaching of heavy metals and toxic elements.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"14 1","pages":"537 - 552"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78489843","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}
Abstract Vehicular traffic has registered a phenomenal growth in the last few decades on Delhi roads, their increasing number is a cause of concern for city planners and administrators as they not only deteriorated the quality of environment but has also affected the human health. In this context, we studied the influence of traffic i.e., vehicular frequency on air quality of Delhi. Five sites were selected in four cardinal directions i.e., North, South, East, West and Centre for which data of air pollutants were already available in public domain (DPCC online website). Vehicular frequencies were recorded for Light Motor Vehicle (LMV) and Heavy Motor Vehicle (HMV) for both weekdays and weekends. Correlative analysis were carried out to study the relationship between vehicular frequency and air pollutants. The study showed, East of Delhi had the highest traffic load followed by North, West, South and Centre. We found statistically significant positive correlation between dust pollution, PM10 (r = 0.8) and PM2.5 (r = 0.6) with vehicular frequency while negative association with ozone (r = –0.5). A weak positive correlation was found with NOx (r = 0.2) while weak negative correlation with SO2 (r = –0.3). The study revealed that vehicular exhaust and their movement contribute in deteriorating the air quality of Delhi. Our findings suggest promotion of usage of public transport along with implementation of BS-VI stage vehicles and development of vegetation filters along the roads with native tree species.
{"title":"Influence of Vehicular Frequency on Air Quality of Delhi, India","authors":"Vijay Kumar, Sunita Gupta, V. Jolli","doi":"10.2478/eces-2022-0034","DOIUrl":"https://doi.org/10.2478/eces-2022-0034","url":null,"abstract":"Abstract Vehicular traffic has registered a phenomenal growth in the last few decades on Delhi roads, their increasing number is a cause of concern for city planners and administrators as they not only deteriorated the quality of environment but has also affected the human health. In this context, we studied the influence of traffic i.e., vehicular frequency on air quality of Delhi. Five sites were selected in four cardinal directions i.e., North, South, East, West and Centre for which data of air pollutants were already available in public domain (DPCC online website). Vehicular frequencies were recorded for Light Motor Vehicle (LMV) and Heavy Motor Vehicle (HMV) for both weekdays and weekends. Correlative analysis were carried out to study the relationship between vehicular frequency and air pollutants. The study showed, East of Delhi had the highest traffic load followed by North, West, South and Centre. We found statistically significant positive correlation between dust pollution, PM10 (r = 0.8) and PM2.5 (r = 0.6) with vehicular frequency while negative association with ozone (r = –0.5). A weak positive correlation was found with NOx (r = 0.2) while weak negative correlation with SO2 (r = –0.3). The study revealed that vehicular exhaust and their movement contribute in deteriorating the air quality of Delhi. Our findings suggest promotion of usage of public transport along with implementation of BS-VI stage vehicles and development of vegetation filters along the roads with native tree species.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"17 1","pages":"477 - 485"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88018311","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}
Abstract In this study, alkaline-H2O2 sludge disintegration was combined with anoxic-aerobic sequencing batch reactor (SBR). The carbon obtained by alkaline-H2O2 sludge disintegration was used in the denitrification process and sludge reduction was achieved in the SBR process. In the SBR process, a 9 % increase in nitrogen removal efficiency was achieved with the improvement in the denitrification process. A sludge reduction efficiency of 43 % was obtained in the SBR process with alkaline-H2O2 sludge disintegration. A synergistic effect was obtained in the combination of alkaline and H2O2 methods and the sludge reduction increased by 8 %. By combining sludge disintegration into the SBR process, it is possible to reduce the amount of sludge formed, which is an important environmental problem, and to provide carbon source for the denitrification process.
{"title":"Nitrogen Removal and Sludge Reduction in Anoxic-Aerobic Sequencing Batch Reactor with Alkaline-H2O2 Disintegration","authors":"E. Gürtekin","doi":"10.2478/eces-2022-0035","DOIUrl":"https://doi.org/10.2478/eces-2022-0035","url":null,"abstract":"Abstract In this study, alkaline-H2O2 sludge disintegration was combined with anoxic-aerobic sequencing batch reactor (SBR). The carbon obtained by alkaline-H2O2 sludge disintegration was used in the denitrification process and sludge reduction was achieved in the SBR process. In the SBR process, a 9 % increase in nitrogen removal efficiency was achieved with the improvement in the denitrification process. A sludge reduction efficiency of 43 % was obtained in the SBR process with alkaline-H2O2 sludge disintegration. A synergistic effect was obtained in the combination of alkaline and H2O2 methods and the sludge reduction increased by 8 %. By combining sludge disintegration into the SBR process, it is possible to reduce the amount of sludge formed, which is an important environmental problem, and to provide carbon source for the denitrification process.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"22 1","pages":"511 - 523"},"PeriodicalIF":0.0,"publicationDate":"2022-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86217336","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}
Abstract In recent years, various cities have continued to build urban landscapes with typical characteristics, but most of the urban landscape constructions are too similar. There is even a problem that the urban landscape is not recognised by the local people, and the same is true for the problem of ecological water governance. This article aims to study the sustainable innovation of urban landscape construction and ecological water environment governance process. To this end, this article proposes fuzzy comprehensive evaluation criteria and goals, through this evaluation system to evaluate the urban landscape construction and ecological water environment management process, and at the same time design experiments to investigate. The experimental results of this paper show that the evaluation system can help improve the urban landscape construction and ecological water environment management. At the same time, the analysis results show that under this evaluation system, urban residents’ satisfaction with the urban landscape has increased by 47 %. At the same time, the effect of water treatment has also been improved, with an improvement effect of 31 %. For the actual governance process, the effect is huge.
{"title":"Sustainable Innovation on Urban Landscape Construction and Ecological Water Environment Governance Process","authors":"Ke Li","doi":"10.2478/eces-2022-0021","DOIUrl":"https://doi.org/10.2478/eces-2022-0021","url":null,"abstract":"Abstract In recent years, various cities have continued to build urban landscapes with typical characteristics, but most of the urban landscape constructions are too similar. There is even a problem that the urban landscape is not recognised by the local people, and the same is true for the problem of ecological water governance. This article aims to study the sustainable innovation of urban landscape construction and ecological water environment governance process. To this end, this article proposes fuzzy comprehensive evaluation criteria and goals, through this evaluation system to evaluate the urban landscape construction and ecological water environment management process, and at the same time design experiments to investigate. The experimental results of this paper show that the evaluation system can help improve the urban landscape construction and ecological water environment management. At the same time, the analysis results show that under this evaluation system, urban residents’ satisfaction with the urban landscape has increased by 47 %. At the same time, the effect of water treatment has also been improved, with an improvement effect of 31 %. For the actual governance process, the effect is huge.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"8 1","pages":"287 - 304"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82689595","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}
Wanxia Yang, Jiaqi Zhuang, Siyu Ding, Mei Zhang, Yuan Tian, Shi-Peng Wan, S. Fang
Abstract Cyclocarya paliurus is an important rare and multipurpose tree species in China. In view of the difficulty of asexual propagation of Cyclocarya paliurus, this paper explores the technical system of Cyclocarya paliurus cutting propagation from the aspects of cutting collection position and time, tannin removal pretreatment, hormone treatment, sand storage treatment, cutting matrix, environmental factors and physical factors, and discusses its internal physiological changes in the process of cutting rooting. This paper attempts to clarify the physiological characteristics of Cyclocarya paliurus in the process of cutting propagation and rooting. The results of this study can provide technical support and theoretical basis for the cuttings propagation of Cyclocarya paliurus. The results show that the rooting rate of cuttings inserted on the mixture of perlite and vermiculite is up to 32.2 %. In summer, when the middle and upper parts of branches were treated with 300 mg/L rooting powder No. 1 and GGR-6 (Green Growth Regulator-6) mixture, the rooting rate was up to 44.4 %; in winter, the rooting rate of the base of branches was 36.7 % under the same treatment. During the rooting process of Cyclocarya paliurus, a large number of nutrients such as soluble sugar, starch and soluble protein were consumed. SOD (Superoxide Dismutase), POD (Peroxidase), and PPO (Polyphenol oxidase) are closely related to cutting and rooting. High activity SOD and POD are conducive to the expansion of cuttings, and high activity SOD and PPO are conducive to improving the stress resistance of cuttings. Hormone treatment can improve the enzyme activity and make the enzyme activity change in the direction conducive to rooting. The change of endogenous hormone content in cuttings reflects the rooting ability of Cyclocarya paliurus. Substrate heating and hormone treatment can regulate the content of endogenous hormone in cuttings during the rooting process, so as to affect the rooting effect, the stable total nitrogen content in cuttings was conducive to root formation.
{"title":"Study on Cutting Cultivation Technology and Rooting Mechanism of Cyclocarya paliurus","authors":"Wanxia Yang, Jiaqi Zhuang, Siyu Ding, Mei Zhang, Yuan Tian, Shi-Peng Wan, S. Fang","doi":"10.2478/eces-2022-0027","DOIUrl":"https://doi.org/10.2478/eces-2022-0027","url":null,"abstract":"Abstract Cyclocarya paliurus is an important rare and multipurpose tree species in China. In view of the difficulty of asexual propagation of Cyclocarya paliurus, this paper explores the technical system of Cyclocarya paliurus cutting propagation from the aspects of cutting collection position and time, tannin removal pretreatment, hormone treatment, sand storage treatment, cutting matrix, environmental factors and physical factors, and discusses its internal physiological changes in the process of cutting rooting. This paper attempts to clarify the physiological characteristics of Cyclocarya paliurus in the process of cutting propagation and rooting. The results of this study can provide technical support and theoretical basis for the cuttings propagation of Cyclocarya paliurus. The results show that the rooting rate of cuttings inserted on the mixture of perlite and vermiculite is up to 32.2 %. In summer, when the middle and upper parts of branches were treated with 300 mg/L rooting powder No. 1 and GGR-6 (Green Growth Regulator-6) mixture, the rooting rate was up to 44.4 %; in winter, the rooting rate of the base of branches was 36.7 % under the same treatment. During the rooting process of Cyclocarya paliurus, a large number of nutrients such as soluble sugar, starch and soluble protein were consumed. SOD (Superoxide Dismutase), POD (Peroxidase), and PPO (Polyphenol oxidase) are closely related to cutting and rooting. High activity SOD and POD are conducive to the expansion of cuttings, and high activity SOD and PPO are conducive to improving the stress resistance of cuttings. Hormone treatment can improve the enzyme activity and make the enzyme activity change in the direction conducive to rooting. The change of endogenous hormone content in cuttings reflects the rooting ability of Cyclocarya paliurus. Substrate heating and hormone treatment can regulate the content of endogenous hormone in cuttings during the rooting process, so as to affect the rooting effect, the stable total nitrogen content in cuttings was conducive to root formation.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"13 1","pages":"379 - 389"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87845558","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}
Abstract With the continuous development of urbanisation, the economic level of rural areas has improved greatly. However, due to the development of industry and the leap in the economy, the rural environment has suffered unprecedented damage. Taking Zhejiang Province as an example, this paper explores the rural environmental pollution control path under the government intervention mechanism. Firstly, it analyses the functions of the government in rural environmental pollution control. Then, taking Huzhou as an example, this paper empirically evaluates the willingness to pay for the treatment of living environment pollution in rural areas of Huzhou based on the CVM (Contingent Valuation Method) and analyses the decentralised domestic sewage treatment mode, multi household domestic sewage treatment mode, and waste collaborative treatment mode from the perspective of treatment technology and policy system. Finally, it is proposed that to speed up the governance of the rural environment, and we must strengthen the administrative intervention of the government in rural environmental governance. The government should improve the environmental protection awareness of leaders at all levels and the masses and enrich farmers’ environmental governance knowledge and technical training. Based on the theory of environmental economics, agricultural economics, and decision-making behaviour, this paper analyses the influence mechanism of farmers’ decision-making behaviour and government intervention in rural non-point source pollution control.
{"title":"Research on Rural Environmental Pollution Control Path Under Administrative Intervention Mechanism","authors":"Lei Wu, C. Wang","doi":"10.2478/eces-2022-0028","DOIUrl":"https://doi.org/10.2478/eces-2022-0028","url":null,"abstract":"Abstract With the continuous development of urbanisation, the economic level of rural areas has improved greatly. However, due to the development of industry and the leap in the economy, the rural environment has suffered unprecedented damage. Taking Zhejiang Province as an example, this paper explores the rural environmental pollution control path under the government intervention mechanism. Firstly, it analyses the functions of the government in rural environmental pollution control. Then, taking Huzhou as an example, this paper empirically evaluates the willingness to pay for the treatment of living environment pollution in rural areas of Huzhou based on the CVM (Contingent Valuation Method) and analyses the decentralised domestic sewage treatment mode, multi household domestic sewage treatment mode, and waste collaborative treatment mode from the perspective of treatment technology and policy system. Finally, it is proposed that to speed up the governance of the rural environment, and we must strengthen the administrative intervention of the government in rural environmental governance. The government should improve the environmental protection awareness of leaders at all levels and the masses and enrich farmers’ environmental governance knowledge and technical training. Based on the theory of environmental economics, agricultural economics, and decision-making behaviour, this paper analyses the influence mechanism of farmers’ decision-making behaviour and government intervention in rural non-point source pollution control.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"88 1","pages":"391 - 402"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74275184","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}
Abstract This study was carried out to reveal the key factors affecting farmers’ green prevention and control technology adoption and to deeply analyse the influence of different generations of farmers’ information capacity on green prevention and control technology adoption. Based on the survey data of 509 farmers in Liaoning Province and the probit model and logit model, this paper conducted an empirical analysis of the farmers’ green prevention and control technology adoption, and analysed the differences in farmers’ adoption of green prevention and control technology from the perspective of intergenerational difference. The research results show as follows: First, information capacity has a significant positive impact on farmers’ green prevention and control technology adoption; Second, the influence of information capacity on the green prevention and control technology adoption of different generations of farmers is different. Information consciousness has more significant influences on farmers in the new and middle-generations; information needs have more significant influences on farmers in the new and old generations; information use only has significant influences on farmers in the middle-generation. Therefore, in order to increase the probability of farmers’ green prevention and control technology adoption, it is necessary to not only pay attention to the influence of farmers’ information capacity, but also fully consider the different stages of the life cycle of different generations of farmers and their own endowment differences.
{"title":"Research on the Impacts of Information Capacity on Farmers’ Green Prevention and Control Technology Adoption","authors":"Q. Wu, Shujie Gao, Xulong Wang, Yushuai Zhao","doi":"10.2478/eces-2022-0022","DOIUrl":"https://doi.org/10.2478/eces-2022-0022","url":null,"abstract":"Abstract This study was carried out to reveal the key factors affecting farmers’ green prevention and control technology adoption and to deeply analyse the influence of different generations of farmers’ information capacity on green prevention and control technology adoption. Based on the survey data of 509 farmers in Liaoning Province and the probit model and logit model, this paper conducted an empirical analysis of the farmers’ green prevention and control technology adoption, and analysed the differences in farmers’ adoption of green prevention and control technology from the perspective of intergenerational difference. The research results show as follows: First, information capacity has a significant positive impact on farmers’ green prevention and control technology adoption; Second, the influence of information capacity on the green prevention and control technology adoption of different generations of farmers is different. Information consciousness has more significant influences on farmers in the new and middle-generations; information needs have more significant influences on farmers in the new and old generations; information use only has significant influences on farmers in the middle-generation. Therefore, in order to increase the probability of farmers’ green prevention and control technology adoption, it is necessary to not only pay attention to the influence of farmers’ information capacity, but also fully consider the different stages of the life cycle of different generations of farmers and their own endowment differences.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"16 1","pages":"305 - 317"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86889667","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}
Abstract In recent years, smog has become one of the most disastrous weather events in China, hurting daily life and seriously affecting public health. To explore the school sports participants in a smog environment based on risk cognition and communication. This study used literature, questionnaire, and other research methods to deeply understand the current situation of school physical education in the haze weather environment. The spatial autocorrelation index tested the spatial agglomeration characteristics of smog pollution. As was evidenced, sports in a smog environment can cause physical discomfort and mild psychological stress. The significant difference in maximal oxygen uptake was p < 0.01. The level of students’ perception of smog positively correlates with students’ active of physical exercise, and it has a significant predictive effect. The explanatory power of smog perception level to resisting coping behaviour is 49.5 % (R2 = 0.495, P < 0.001). Under the influence of smog, participants in school sports activities showed high smog risk cognition and weak coping behaviour, and schools showed low smog risk communication. Experience and policy supervision explain 50.1 % of the information on risk communication influencing factors, with high explanatory power. One can conclude that outdoor teaching and practice in physical education classes should be carried out because the outdoor air does not influence the human body to enhance physical fitness and health.
近年来，雾霾已成为中国最具灾害性的天气事件之一，危害着人们的日常生活，严重影响着公众健康。探讨雾霾环境下学校体育参与者的风险认知与沟通。本研究采用文献资料法、问卷调查法等研究方法，深入了解雾霾天气环境下学校体育教学的现状。空间自相关指数检验了雾霾污染的空间集聚特征。有证据表明，在雾霾环境中运动可能会导致身体不适和轻微的心理压力。最大摄氧量差异有统计学意义(p < 0.01)。学生雾霾感知水平与学生体育锻炼积极性呈正相关，具有显著的预测作用。雾霾感知水平对抵抗应对行为的解释力为49.5% (R2 = 0.495, P < 0.001)。受雾霾影响，学校体育活动参与者雾霾风险认知较高，应对行为较弱，学校雾霾风险沟通较低。经验和政策监管解释了50.1%的风险沟通影响因素信息，具有较高的解释力。可以得出结论，在体育课中应该进行户外教学和实践，因为室外空气对人体没有影响，可以增强体质和健康。
{"title":"Research on Coping Behaviour of School Sports Participants in Smog Environment Based on Risk Cognition and Communication","authors":"Xianjia Zhao, Shijia Fang","doi":"10.2478/eces-2022-0026","DOIUrl":"https://doi.org/10.2478/eces-2022-0026","url":null,"abstract":"Abstract In recent years, smog has become one of the most disastrous weather events in China, hurting daily life and seriously affecting public health. To explore the school sports participants in a smog environment based on risk cognition and communication. This study used literature, questionnaire, and other research methods to deeply understand the current situation of school physical education in the haze weather environment. The spatial autocorrelation index tested the spatial agglomeration characteristics of smog pollution. As was evidenced, sports in a smog environment can cause physical discomfort and mild psychological stress. The significant difference in maximal oxygen uptake was p < 0.01. The level of students’ perception of smog positively correlates with students’ active of physical exercise, and it has a significant predictive effect. The explanatory power of smog perception level to resisting coping behaviour is 49.5 % (R2 = 0.495, P < 0.001). Under the influence of smog, participants in school sports activities showed high smog risk cognition and weak coping behaviour, and schools showed low smog risk communication. Experience and policy supervision explain 50.1 % of the information on risk communication influencing factors, with high explanatory power. One can conclude that outdoor teaching and practice in physical education classes should be carried out because the outdoor air does not influence the human body to enhance physical fitness and health.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"9 1","pages":"365 - 377"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89627252","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}
Wei Liu, S. Tsai, Chia-Huei Wu, Xuefeng Shao, M. Wacławek
Abstract Industrial pollution and over-exploitation of natural resources adversely affect the environment and are also a serious threat to society and economy development. At present, climate change, destruction of the ozone layer, water shortage, and sharp reduction of biodiversity have also become widespread environmental problems. Therefore, people have started to explore how to solve the environmental pollution problems in the process of economic development from corporate environmental management. In addition to corporate environmental management, we also focus on the study of sustainable operation. Improving operational efficiency can also effectively reduce environmental pollution and promote sustainable development. This special issue of Ecological Chemistry and Engineering S (ECE S) collects 10 articles focusing on challenges and issues in corporate environmental management and sustainable operation, aiming to share and discuss the latest advances and future trends of theories and applications in academia, promote innovation in rural economic development models, improve the ecological environment, and bring practical insights and experiences to industry developers.
{"title":"Corporate Environmental Management and Sustainable Operation: Theory and Application","authors":"Wei Liu, S. Tsai, Chia-Huei Wu, Xuefeng Shao, M. Wacławek","doi":"10.2478/eces-2022-0020","DOIUrl":"https://doi.org/10.2478/eces-2022-0020","url":null,"abstract":"Abstract Industrial pollution and over-exploitation of natural resources adversely affect the environment and are also a serious threat to society and economy development. At present, climate change, destruction of the ozone layer, water shortage, and sharp reduction of biodiversity have also become widespread environmental problems. Therefore, people have started to explore how to solve the environmental pollution problems in the process of economic development from corporate environmental management. In addition to corporate environmental management, we also focus on the study of sustainable operation. Improving operational efficiency can also effectively reduce environmental pollution and promote sustainable development. This special issue of Ecological Chemistry and Engineering S (ECE S) collects 10 articles focusing on challenges and issues in corporate environmental management and sustainable operation, aiming to share and discuss the latest advances and future trends of theories and applications in academia, promote innovation in rural economic development models, improve the ecological environment, and bring practical insights and experiences to industry developers.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"64 1","pages":"283 - 285"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77614841","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}
Abstract With the development of the economy, people’s living standards are getting higher and higher. People will look for ways to relax after busy work, and rural tourism is a slow-paced life. The purpose of this paper is to analyse the evaluation system of rural sustainable tourism land based on ecosystem service value. In this paper, an evaluation model based on AHP and association rules is proposed, and the two methods are described in detail. The experimental results of this paper show that the number of tourists has increased from 12 % in 2014 to 24.9 % in 2020, and the growth rate of tourism revenue has increased from 24 % in 2014 to 30 % in 2020. Rural tourism is an important part of tourism and an important force to implement the strategy of rural revitalisation. It plays an important role in accelerating the modernisation of agriculture and rural areas, the integrated development of urban and rural areas, and poverty alleviation in poor areas. The number of farm stays has increased from 1.9 million in 2014 to 3.25 million in 2020. It can be seen that with the growth of time, the rapid development of the economy, and increasing people who love to travel, this has led to changes in the utilisation rate of rural land. Therefore, the research on the evaluation system of rural sustainable tourism land based on ecosystem service value is very meaningful.
{"title":"Evaluation System of Rural Sustainable Tourism Land Based on Ecosystem Service Value","authors":"Rong Mei, Lirong Han","doi":"10.2478/eces-2022-0025","DOIUrl":"https://doi.org/10.2478/eces-2022-0025","url":null,"abstract":"Abstract With the development of the economy, people’s living standards are getting higher and higher. People will look for ways to relax after busy work, and rural tourism is a slow-paced life. The purpose of this paper is to analyse the evaluation system of rural sustainable tourism land based on ecosystem service value. In this paper, an evaluation model based on AHP and association rules is proposed, and the two methods are described in detail. The experimental results of this paper show that the number of tourists has increased from 12 % in 2014 to 24.9 % in 2020, and the growth rate of tourism revenue has increased from 24 % in 2014 to 30 % in 2020. Rural tourism is an important part of tourism and an important force to implement the strategy of rural revitalisation. It plays an important role in accelerating the modernisation of agriculture and rural areas, the integrated development of urban and rural areas, and poverty alleviation in poor areas. The number of farm stays has increased from 1.9 million in 2014 to 3.25 million in 2020. It can be seen that with the growth of time, the rapid development of the economy, and increasing people who love to travel, this has led to changes in the utilisation rate of rural land. Therefore, the research on the evaluation system of rural sustainable tourism land based on ecosystem service value is very meaningful.","PeriodicalId":11395,"journal":{"name":"Ecological Chemistry and Engineering S","volume":"65 1","pages":"347 - 369"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91087546","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：