This study investigates the potential benefits of positive environmental, social, and governance (ESG) performance for enterprises operating in heavily polluting industries. Regression analyses using Stata were conducted on a sample of A-share listed enterprises in these industries from 2010 to 2020. The findings reveal that higher ESG performance leads to lower debt financing costs. Furthermore, the analysis of mechanisms indicates that the green innovation behavior of enterprises enhances the impact of ESG performance on debt financing costs. Heterogeneity analysis demonstrates that the ESG performance of heavily polluting enterprises in central China has a more significant influence on debt financing costs. For non-state-owned heavily polluting enterprises, the relationship between standard audit opinions is substantial, as audit opinions contain sufficient information and risk disclosure. This study contributes to our understanding of the economic implications of ESG performance and provides valuable evidence supporting enterprises in their efforts to improve ESG performance.
本研究探讨了环境、社会和治理（ESG）方面的积极表现对重度污染行业企业的潜在益处。使用 Stata 对 2010 年至 2020 年这些行业的 A 股上市企业样本进行了回归分析。研究结果表明，较高的环境、社会和治理绩效会导致较低的债务融资成本。此外，机制分析表明，企业的绿色创新行为增强了环境、社会和治理绩效对债务融资成本的影响。异质性分析表明，华中地区重污染企业的环境、社会和治理绩效对债务融资成本的影响更为显著。对于非国有重污染企业，由于审计意见包含了充分的信息和风险披露，因此标准审计意见之间的关系是实质性的。本研究有助于我们理解环境、社会和治理绩效的经济影响，并为企业提高环境、社会和治理绩效提供了有价值的证据。
{"title":"The Effect and Mechanism of ESG Performance\u0000on Corporate Debt Financing Costs:\u0000Empirical Evidence from Listed Companies\u0000in the Heavy-Polluting Industries","authors":"QiaoYu Hou, Qiang Zhang","doi":"10.15244/pjoes/173999","DOIUrl":"https://doi.org/10.15244/pjoes/173999","url":null,"abstract":"This study investigates the potential benefits of positive environmental, social, and governance (ESG) performance for enterprises operating in heavily polluting industries. Regression analyses using Stata were conducted on a sample of A-share listed enterprises in these industries from 2010 to 2020. The findings reveal that higher ESG performance leads to lower debt financing costs. Furthermore, the analysis of mechanisms indicates that the green innovation behavior of enterprises enhances the impact of ESG performance on debt financing costs. Heterogeneity analysis demonstrates that the ESG performance of heavily polluting enterprises in central China has a more significant influence on debt financing costs. For non-state-owned heavily polluting enterprises, the relationship between standard audit opinions is substantial, as audit opinions contain sufficient information and risk disclosure. This study contributes to our understanding of the economic implications of ESG performance and provides valuable evidence supporting enterprises in their efforts to improve ESG performance.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":" 1099","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960246","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}
Coal gangue is one of the most accumulated solid wastes in China, its accumulation occupies a large amount of land resources and the potential environmental risks posed by coal gangue continue to rise. In this study, sequential extraction was employed to analyze the fractionation behavior of trace elements (Cd, Cr, Cu, Mn, Ni, Pb, V and Zn), The contamination degree and potential ecological risk of trace elements were comprehensively evaluated by Geo-accumulation Index ( I geo ), Potential ecological risk index and the Risk assessment code (RAC) method. The results of XRD shows that there are various minerals in coal gangue, with obvious diffraction peak characteristics, and the minerals with higher levels are quartz, kaolinite, dolomite and potassium feldspar. The trace elements are predominantly found in the residual state. The results of I geo reveal that all trace elements are in a pollution-free state. The potential ecological risk level of Cd belongs to strong risk, while the level of the other elements is slight risk. The result of RAC indicates that the active forms of Mn may cause the greatest harm to the ecological environment, and which deserves further attention. The results can provide scientific basis for the stacking management and comprehensive utilization of coal gangue.
{"title":"Speciation Characteristics and Contamination\u0000Degree of Trace Elements in Coal Gangue Hill\u0000of a Mining Area in Huainan Coalfield, China","authors":"Yixing Zhu, Liugen Zheng, Xing Chen, Yongchun Chen","doi":"10.15244/pjoes/174397","DOIUrl":"https://doi.org/10.15244/pjoes/174397","url":null,"abstract":"Coal gangue is one of the most accumulated solid wastes in China, its accumulation occupies a large amount of land resources and the potential environmental risks posed by coal gangue continue to rise. In this study, sequential extraction was employed to analyze the fractionation behavior of trace elements (Cd, Cr, Cu, Mn, Ni, Pb, V and Zn), The contamination degree and potential ecological risk of trace elements were comprehensively evaluated by Geo-accumulation Index ( I geo ), Potential ecological risk index and the Risk assessment code (RAC) method. The results of XRD shows that there are various minerals in coal gangue, with obvious diffraction peak characteristics, and the minerals with higher levels are quartz, kaolinite, dolomite and potassium feldspar. The trace elements are predominantly found in the residual state. The results of I geo reveal that all trace elements are in a pollution-free state. The potential ecological risk level of Cd belongs to strong risk, while the level of the other elements is slight risk. The result of RAC indicates that the active forms of Mn may cause the greatest harm to the ecological environment, and which deserves further attention. The results can provide scientific basis for the stacking management and comprehensive utilization of coal gangue.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":" 1012","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960377","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}
Lijie Zhang, Guangwei Wu, Zhixin Su, Rui Zhu, Qiang Zhou, Chunping Liu
The diversity of microbial communities in rhizosphere soil and non-rhizosphere soil was investigated in Juglans mandshurica plantation in Liaodong Mountain, and the relationship between the diversity and physical or chemical characteristics of soil were also studied. The results showed that most of chemical characteristics such as pH, total carbon, total nitrogen, total phosphorus and available phosphorus in rhizosphere soils were higher than that in non-rhizosphere soils significantly. The main factors affecting soil bacterial and fungal community structure are soil pH and available phosphorus (bacteria) and available nitrogen (fungi), respectively. Significant difference in the number of biomaker between rhizosphere and non-rhizosphere soils was detected for fungal, but not for bacteria. On contrast, significant difference of the diversity indexes between rhizosphere and non-rhizosphere soils were detected for bacteria, but not for fungi. These differences between rhizosphere and non-rhizosphere soils, and also between bacteria and fungi might caused by roots physiological metabolism of J. mandshurica . The dominant microbial groups are Actinobacteriota, Proteobacteria and Acidobacteriota (bacteria) and Ascomycota (fungi), which accounted for about 80% of relative abundance of bacteria or fungi. These results will provide the theoretical and scientific basis for the sustainable management and improvement of soil fertility of J. mandshurica plantation.
{"title":"Diversity of Soil Microbial Community\u0000in Juglans mandshurica Plantation in Eastern\u0000Liaoning Mountains","authors":"Lijie Zhang, Guangwei Wu, Zhixin Su, Rui Zhu, Qiang Zhou, Chunping Liu","doi":"10.15244/pjoes/174396","DOIUrl":"https://doi.org/10.15244/pjoes/174396","url":null,"abstract":"The diversity of microbial communities in rhizosphere soil and non-rhizosphere soil was investigated in Juglans mandshurica plantation in Liaodong Mountain, and the relationship between the diversity and physical or chemical characteristics of soil were also studied. The results showed that most of chemical characteristics such as pH, total carbon, total nitrogen, total phosphorus and available phosphorus in rhizosphere soils were higher than that in non-rhizosphere soils significantly. The main factors affecting soil bacterial and fungal community structure are soil pH and available phosphorus (bacteria) and available nitrogen (fungi), respectively. Significant difference in the number of biomaker between rhizosphere and non-rhizosphere soils was detected for fungal, but not for bacteria. On contrast, significant difference of the diversity indexes between rhizosphere and non-rhizosphere soils were detected for bacteria, but not for fungi. These differences between rhizosphere and non-rhizosphere soils, and also between bacteria and fungi might caused by roots physiological metabolism of J. mandshurica . The dominant microbial groups are Actinobacteriota, Proteobacteria and Acidobacteriota (bacteria) and Ascomycota (fungi), which accounted for about 80% of relative abundance of bacteria or fungi. These results will provide the theoretical and scientific basis for the sustainable management and improvement of soil fertility of J. mandshurica plantation.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":" 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960077","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}
Z. Salih, J. Toma, Abdulla Hamad Aziz, Tara Mohammed Hassan, Frahad Hassan Aziz
In this study, the rainwater qualities in eight sites located in the oil refinery region within Erbil province were evaluated for irrigation and drinking goals. Rainwater specimens (n = 24) were collected once a time on 21 October 2022. The index for quality of water (WQI), Index for irrigation water quality (IWQI), also Heavy Metals Pollution Indice (HPI) were used in the current study to evaluate the rainfall quality for drinking and irrigation purposes. Physical, and chemical parameters and some heavy metals were determined for assessing the quality of rainwater. The results showed that higher turbidity, pH, hardness, magnesium, potassium, and phosphate were recorded in the nearest sites around the polluted region which was considered higher than the guideline of the WHO organization for drinking uses. The value of the studied heavy metals including iron, manganese, lead, cobalt, arsenic, mercury, and cadmium was higher than the permissible value for drinking purposes in all sites. Based on the calculated WQI, 62.5% of sample sites are poor for drinking, and 37.5% of samples are good for drinking. The nearest sites are poor for drinking water in comparison to remote sites from oil refineries. The values of IWQI varied from 74.06 (low restriction) in site 2 to 55.10 (moderate restriction) in site 4 respectively. According to the HPI of the studied area are polluted and unsuitable for drinking purposes according to the HPI index.
{"title":"Evaluation of Rainwater Quality in Some Polluted Locations within Erbil Province","authors":"Z. Salih, J. Toma, Abdulla Hamad Aziz, Tara Mohammed Hassan, Frahad Hassan Aziz","doi":"10.15244/pjoes/173997","DOIUrl":"https://doi.org/10.15244/pjoes/173997","url":null,"abstract":"In this study, the rainwater qualities in eight sites located in the oil refinery region within Erbil province were evaluated for irrigation and drinking goals. Rainwater specimens (n = 24) were collected once a time on 21 October 2022. The index for quality of water (WQI), Index for irrigation water quality (IWQI), also Heavy Metals Pollution Indice (HPI) were used in the current study to evaluate the rainfall quality for drinking and irrigation purposes. Physical, and chemical parameters and some heavy metals were determined for assessing the quality of rainwater. The results showed that higher turbidity, pH, hardness, magnesium, potassium, and phosphate were recorded in the nearest sites around the polluted region which was considered higher than the guideline of the WHO organization for drinking uses. The value of the studied heavy metals including iron, manganese, lead, cobalt, arsenic, mercury, and cadmium was higher than the permissible value for drinking purposes in all sites. Based on the calculated WQI, 62.5% of sample sites are poor for drinking, and 37.5% of samples are good for drinking. The nearest sites are poor for drinking water in comparison to remote sites from oil refineries. The values of IWQI varied from 74.06 (low restriction) in site 2 to 55.10 (moderate restriction) in site 4 respectively. According to the HPI of the studied area are polluted and unsuitable for drinking purposes according to the HPI index.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"49 ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175275","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}
Ruiyi Murong, Min Chang, Wei Hui, Yanxi Yuan, Hao Dong
Although there has been a lot of research on network embeddedness, few scholars have explored its impact on disruptive green technological innovation. Taking manufacturing enterprises as the research object, this paper divides network embeddedness into two dimensions, namely structural embeddedness and relational embeddedness, by using social network theory and resource orchestration theory, discusses the influence of both on disruptive green technological innovation in manufacturing enterprises, and analyzes the mediating role of resource orchestration and the adjustment of environmental insight capacity. The results show that: (1) structural embeddedness and relational embeddedness not only have significant positive effects on disruptive green technological innovation, but also have significant positive effects on resource orchestration; (2) resource orchestration has a significant positive impact on disruptive green technological innovation, and plays a partial mediating role between structural embeddedness, relational embeddedness and disruptive green technological innovation, respectively; (3) Environmental insight capacity positively moderates the relationship between embeddedness and disruptive green technological innovation. The research results are helpful to clarify the mechanism of network embeddedness on disruptive green technological innovation in manufacturing enterprises, and expand the research on resource orchestration and disruptive green technological innovation.
{"title":"Network Embeddedness and Disruptive Green\u0000Technological Innovation: The Mediating Role\u0000of Resource Orchestration","authors":"Ruiyi Murong, Min Chang, Wei Hui, Yanxi Yuan, Hao Dong","doi":"10.15244/pjoes/172837","DOIUrl":"https://doi.org/10.15244/pjoes/172837","url":null,"abstract":"Although there has been a lot of research on network embeddedness, few scholars have explored its impact on disruptive green technological innovation. Taking manufacturing enterprises as the research object, this paper divides network embeddedness into two dimensions, namely structural embeddedness and relational embeddedness, by using social network theory and resource orchestration theory, discusses the influence of both on disruptive green technological innovation in manufacturing enterprises, and analyzes the mediating role of resource orchestration and the adjustment of environmental insight capacity. The results show that: (1) structural embeddedness and relational embeddedness not only have significant positive effects on disruptive green technological innovation, but also have significant positive effects on resource orchestration; (2) resource orchestration has a significant positive impact on disruptive green technological innovation, and plays a partial mediating role between structural embeddedness, relational embeddedness and disruptive green technological innovation, respectively; (3) Environmental insight capacity positively moderates the relationship between embeddedness and disruptive green technological innovation. The research results are helpful to clarify the mechanism of network embeddedness on disruptive green technological innovation in manufacturing enterprises, and expand the research on resource orchestration and disruptive green technological innovation.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":" 24","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138995016","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}
In the context of the product service type and multi-level ecosystem of upgrading agriculture-forestry-animal husbandry composite system in Dibei Zagana, China. we conducted a study on ecosystem services to explore the coupling relationship between the matching characteristics of ecosystem service supply and demand and ecological resilience. Using multi-source data, we developed various models to assess the supply and demand of five ecosystem services: agriculture-forestry-animal husbandry composite system services, water production, upgrading agriculture-forestry-animal Husbandry composite system, soil conservation, and recreation and leisure. Additionally, we established an ecological resilience index system to quantify ecological resilience. Based on the "ecosystem service supply and demand + ecological resilience" concept, we defined ecological restoration zones. Subsequently, optimization strategies were proposed considering the natural and socio-economic status and development characteristics of these zones. Moreover, differentiated ecological restoration strategies were suggested for various sub-areas. These strategies provide valuable guidelines for the systematic design of ecological restoration projects and serve as methodological references for the scientific preparation of the future comprehensive management plan for the Zagana district.
{"title":"Research on Ecosystem Service Supply, Demand and Ecological Resilience in the Context of Agriculture-Forestry-Animal Husbandry Composite System in Dibei Zagana, China","authors":"Tang Hong, Chongjian Yang","doi":"10.15244/pjoes/174395","DOIUrl":"https://doi.org/10.15244/pjoes/174395","url":null,"abstract":"In the context of the product service type and multi-level ecosystem of upgrading agriculture-forestry-animal husbandry composite system in Dibei Zagana, China. we conducted a study on ecosystem services to explore the coupling relationship between the matching characteristics of ecosystem service supply and demand and ecological resilience. Using multi-source data, we developed various models to assess the supply and demand of five ecosystem services: agriculture-forestry-animal husbandry composite system services, water production, upgrading agriculture-forestry-animal Husbandry composite system, soil conservation, and recreation and leisure. Additionally, we established an ecological resilience index system to quantify ecological resilience. Based on the \"ecosystem service supply and demand + ecological resilience\" concept, we defined ecological restoration zones. Subsequently, optimization strategies were proposed considering the natural and socio-economic status and development characteristics of these zones. Moreover, differentiated ecological restoration strategies were suggested for various sub-areas. These strategies provide valuable guidelines for the systematic design of ecological restoration projects and serve as methodological references for the scientific preparation of the future comprehensive management plan for the Zagana district.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"52 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139173716","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}
Juana Guadalupe Herrera-Pérez, F. Legorreta-García, M. Reyes-Pérez, V. Reyes-Cruz, E. A. Chávez-Urbiola, Luis Eduardo Trujillo-Villanueva
The reprocessing of mining waste remains a challenge to achieve ecological sustainability. Magnetic separation is one of the most effective methods for physical separation of materials. In this research, a magnetic separator with permanent neodymium (Nd-Fe-B) magnets is developed to remove magnetic particles contained in mining waste powder. Experiments with different variables were carried out to determine the design parameters for the process, such as: the separation between magnets, the flow of the material and the concentration of solids in the slurry. In this investigation, a Taguchi L16 4k matrix was used, considering that the process has 3 controllable factors with 4 levels each, for which 64 samples were prepared to obtain the parameters that give us a process that works with greater consistency, considering 2 noise factors (% of magnetics in the sample and the accumulation of particles). The results of this research will be the basis for the manufacture of a magnetic separator for the treatment of mining waste.
{"title":"Analysis of the Effect of Magnetic Separation\u0000Processing Parameters for the Treatment\u0000of Mining Waste","authors":"Juana Guadalupe Herrera-Pérez, F. Legorreta-García, M. Reyes-Pérez, V. Reyes-Cruz, E. A. Chávez-Urbiola, Luis Eduardo Trujillo-Villanueva","doi":"10.15244/pjoes/173113","DOIUrl":"https://doi.org/10.15244/pjoes/173113","url":null,"abstract":"The reprocessing of mining waste remains a challenge to achieve ecological sustainability. Magnetic separation is one of the most effective methods for physical separation of materials. In this research, a magnetic separator with permanent neodymium (Nd-Fe-B) magnets is developed to remove magnetic particles contained in mining waste powder. Experiments with different variables were carried out to determine the design parameters for the process, such as: the separation between magnets, the flow of the material and the concentration of solids in the slurry. In this investigation, a Taguchi L16 4k matrix was used, considering that the process has 3 controllable factors with 4 levels each, for which 64 samples were prepared to obtain the parameters that give us a process that works with greater consistency, considering 2 noise factors (% of magnetics in the sample and the accumulation of particles). The results of this research will be the basis for the manufacture of a magnetic separator for the treatment of mining waste.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"82 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138586722","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}
In this study, the effect of mycorrhiza ( Glomus intraradices N.C. Schenck & G.S. Sm.) inoculation on the micronutrient and macroelement uptakes in different organs of daffodil ( Narcissus tazetta L.) grown under saline conditions is examined. For this purpose, Narcissus tazetta plant grown in the climate chamber was treated with sodium chloride (NaCl) at three different concentrations such as salt-free (S0), 34 mmol (S1) and 68 mmol (S2) in mediums with mycorrhiza (M+) and without mycorrhiza (M). At the end of the experiment, the uptakes of sodium (Na), iron (Fe), manganese (Mn), zinc (Zn) and copper (Cu) uptakes in the bulb, root and leaves of the plant were analyzed. The effects of salt and mycorrhiza interactions on the N uptakes were statistically significant at the 5% level in bulbs. The effects of salt applications were found significant at 1% level for all nutrients uptakes of roots except Cu uptake (5%). The effects of interactions among salt and mycorrhiza were found significant at 5% level for P, Ca and Mn uptakes and at 1% level for Mg, Fe and Cu uptakes of leaves statistically. Increasing doses of sodium chloride had statistically negative effects on nutrient uptakes of different organs except Na and K uptakes of bulbs. Mycorrhiza applications generally increased nutrient uptakes of daffodil’s roots and leaves under salinity conditions. The interactions between salt and mycorrhiza were significant for N in bulbs, for N, P and Fe in roots and for P, Ca, Mg, Fe, Mn and Cu in leaves. The decreases in these nutrients uptakes by 68 mmol NaCl applications were lower in mycorrhiza applications than those in non mycorrhiza applications.
{"title":"The Responses of Nutrient Uptakes in Different\u0000Organs of Narcissus tazetta (L.) Grown under\u0000Saline Conditions to Mycorrhizal Inoculation","authors":"A. Çığ, Füsun Gülser, E. Gülser","doi":"10.15244/pjoes/173989","DOIUrl":"https://doi.org/10.15244/pjoes/173989","url":null,"abstract":"In this study, the effect of mycorrhiza ( Glomus intraradices N.C. Schenck & G.S. Sm.) inoculation on the micronutrient and macroelement uptakes in different organs of daffodil ( Narcissus tazetta L.) grown under saline conditions is examined. For this purpose, Narcissus tazetta plant grown in the climate chamber was treated with sodium chloride (NaCl) at three different concentrations such as salt-free (S0), 34 mmol (S1) and 68 mmol (S2) in mediums with mycorrhiza (M+) and without mycorrhiza (M). At the end of the experiment, the uptakes of sodium (Na), iron (Fe), manganese (Mn), zinc (Zn) and copper (Cu) uptakes in the bulb, root and leaves of the plant were analyzed. The effects of salt and mycorrhiza interactions on the N uptakes were statistically significant at the 5% level in bulbs. The effects of salt applications were found significant at 1% level for all nutrients uptakes of roots except Cu uptake (5%). The effects of interactions among salt and mycorrhiza were found significant at 5% level for P, Ca and Mn uptakes and at 1% level for Mg, Fe and Cu uptakes of leaves statistically. Increasing doses of sodium chloride had statistically negative effects on nutrient uptakes of different organs except Na and K uptakes of bulbs. Mycorrhiza applications generally increased nutrient uptakes of daffodil’s roots and leaves under salinity conditions. The interactions between salt and mycorrhiza were significant for N in bulbs, for N, P and Fe in roots and for P, Ca, Mg, Fe, Mn and Cu in leaves. The decreases in these nutrients uptakes by 68 mmol NaCl applications were lower in mycorrhiza applications than those in non mycorrhiza applications.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"32 6","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138587500","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}
The study comprised a 3-year retrospective analysis of trips by the MRTs from the northern part of the Lubelskie Province. The data was taken from records functioning in the State Medical Rescue Service (SMRS) system. Analysis period: 1.01.2020-31.12.2022. It is the analysis of emergency medical services calls justified by threat to health, life, or injury of the victim due to the action of insects, birds, reptiles, mammals as a result of direct contact with them (stinging, biting, scratching, hitting, kicking). Applying the inclusion and exclusion criteria, 72 emergency medical services trips representing 0.34% of the total interventions in local area. The population was divided according to the cause of the threat: insects n = 45, dogs n = 12, cattle (bull, cow) n = 15Men statistically more often suffered injuries than women 61% vs 39% (p=0.048). A statistically significant influence of the type of threat on the time of intervention was demonstrated; for dog hazards 39±25 min, insects 40±17 min; cattle 56±15 min; P = 0.015. There was a statistically significant difference in the use of pharmacology compared to the procedures described by ICD 10 codes (P<0.001). The impact of the type of threat on the need to transport the patient to the Emergency Department was not demonstrated. Hymenopterous insects are the most common type of zoonotic hazard on an annual basis, with an increase for the spring-summer months. There was a statistically significant difference in age for each type of hazard, the youngest of those injured were harmed by dogs, while the eldest were by insects. There was no statistically significant effect of place of residence (urban-rural) on the type of zoonotic injury.
{"title":"Zoonotic Health Hazards in the Practice\u0000of Emergency Medical Service Teams\u0000– a Three-Year Observation","authors":"Łukasz Dudziński, Łukasz Czyżewski, Marcin Weiner","doi":"10.15244/pjoes/173128","DOIUrl":"https://doi.org/10.15244/pjoes/173128","url":null,"abstract":"The study comprised a 3-year retrospective analysis of trips by the MRTs from the northern part of the Lubelskie Province. The data was taken from records functioning in the State Medical Rescue Service (SMRS) system. Analysis period: 1.01.2020-31.12.2022. It is the analysis of emergency medical services calls justified by threat to health, life, or injury of the victim due to the action of insects, birds, reptiles, mammals as a result of direct contact with them (stinging, biting, scratching, hitting, kicking). Applying the inclusion and exclusion criteria, 72 emergency medical services trips representing 0.34% of the total interventions in local area. The population was divided according to the cause of the threat: insects n = 45, dogs n = 12, cattle (bull, cow) n = 15Men statistically more often suffered injuries than women 61% vs 39% (p=0.048). A statistically significant influence of the type of threat on the time of intervention was demonstrated; for dog hazards 39±25 min, insects 40±17 min; cattle 56±15 min; P = 0.015. There was a statistically significant difference in the use of pharmacology compared to the procedures described by ICD 10 codes (P<0.001). The impact of the type of threat on the need to transport the patient to the Emergency Department was not demonstrated. Hymenopterous insects are the most common type of zoonotic hazard on an annual basis, with an increase for the spring-summer months. There was a statistically significant difference in age for each type of hazard, the youngest of those injured were harmed by dogs, while the eldest were by insects. There was no statistically significant effect of place of residence (urban-rural) on the type of zoonotic injury.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"11 6","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138590113","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}
Several epidemiological studies have indicated that an increased risk of depression was associated with long-term exposure to PM2.5. The objective of our two-sample Mendelian randomization study was to determine the causal relationship between long-term exposure to particulate matter 2.5 and the risk of depression. A two-sample Mendelian randomization study was performed based on GWAS summary data. Forty-six PM2.5-related single nucleotide polymorphisms were suitable for the analysis as instrumental variables. The random-effect model of inverse-variance weighted and the other four methods (weighted median, MR-Egger, Simple mode and weighted mode) were all performed for the analysis. Additionally, multivariate Mendelian randomization analysis was also completed. Our two-sample Mendelian randomization study indicated that exposure to particulate matter 2.5 has a significantly positive impact on the risk of depression ( P = 0.026, random-effect model of inverse-variance weighted). After adjusting for smoking and body mass index in our multivariate Mendelian randomization analysis separately, the relationship between exposure to PM2.5 and the risk of depression remained significant. Based on current GWAS data, our study supplies potential evidence that long-term exposure to PM2.5 is a risk factor for depression. The improvement in air quality may be conducive to reducing the risk of depression.
{"title":"The Causal Relationship between Long-Term\u0000PM2.5 Exposure and the Risk of Depression:\u0000A Two-Sample Mendelian\u0000Randomization Study","authors":"Xuemin Zhao, Linfei Liu","doi":"10.15244/pjoes/173097","DOIUrl":"https://doi.org/10.15244/pjoes/173097","url":null,"abstract":"Several epidemiological studies have indicated that an increased risk of depression was associated with long-term exposure to PM2.5. The objective of our two-sample Mendelian randomization study was to determine the causal relationship between long-term exposure to particulate matter 2.5 and the risk of depression. A two-sample Mendelian randomization study was performed based on GWAS summary data. Forty-six PM2.5-related single nucleotide polymorphisms were suitable for the analysis as instrumental variables. The random-effect model of inverse-variance weighted and the other four methods (weighted median, MR-Egger, Simple mode and weighted mode) were all performed for the analysis. Additionally, multivariate Mendelian randomization analysis was also completed. Our two-sample Mendelian randomization study indicated that exposure to particulate matter 2.5 has a significantly positive impact on the risk of depression ( P = 0.026, random-effect model of inverse-variance weighted). After adjusting for smoking and body mass index in our multivariate Mendelian randomization analysis separately, the relationship between exposure to PM2.5 and the risk of depression remained significant. Based on current GWAS data, our study supplies potential evidence that long-term exposure to PM2.5 is a risk factor for depression. The improvement in air quality may be conducive to reducing the risk of depression.","PeriodicalId":20363,"journal":{"name":"Polish Journal of Environmental Studies","volume":"56 11","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138595133","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}
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