: The importance of forest strips along communication routes has to be put into the context of stand stability, resilience to disturbances and biodiversity while satisfying societal needs. In order to address such important issues, through the data provided by the forest management plans, an analysis of the forest stands structure and composition of the forest stands in the Transylvanian alps in Romania was carried out. The forest distribution according to age and species has provided an uneven aged, multi-layered forest with a high tree and plant communities diversity, which according to the slenderness index, have shown a high degree of stability and resilience. Based on species diversity above ground, the stands have shown increased biodiversity from a plant community point of view and an enhanced structural connectivity. The species richness in mixed broadleaved forests was higher than in pure stands whereas, in resinous forests, the species richness was higher in pure spruce stands as compared to mixed stands where spruce participation was secondary. On a national scale, Natura 2000 sites consists of more than 25% of the total forested area, contributing to the EU Biodiversity Strategy 2030, EU Green Deal and the EU Forest strategy 2030 targets and commitments.
{"title":"Forests along roads - a case of stability, resilience and biodiversity","authors":"Mihai-Ionut Hapa, L. Dincă","doi":"10.47743/pesd2023171018","DOIUrl":"https://doi.org/10.47743/pesd2023171018","url":null,"abstract":": The importance of forest strips along communication routes has to be put into the context of stand stability, resilience to disturbances and biodiversity while satisfying societal needs. In order to address such important issues, through the data provided by the forest management plans, an analysis of the forest stands structure and composition of the forest stands in the Transylvanian alps in Romania was carried out. The forest distribution according to age and species has provided an uneven aged, multi-layered forest with a high tree and plant communities diversity, which according to the slenderness index, have shown a high degree of stability and resilience. Based on species diversity above ground, the stands have shown increased biodiversity from a plant community point of view and an enhanced structural connectivity. The species richness in mixed broadleaved forests was higher than in pure stands whereas, in resinous forests, the species richness was higher in pure spruce stands as compared to mixed stands where spruce participation was secondary. On a national scale, Natura 2000 sites consists of more than 25% of the total forested area, contributing to the EU Biodiversity Strategy 2030, EU Green Deal and the EU Forest strategy 2030 targets and commitments.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70913458","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}
: In light of the coronavirus disease 2019 (COVID-19) pandemic, there is a strong correlation between citizens' social responsibility (SR) and sustainable development (SD). Accordingly, the present study aimed to model the impact of citizens' SR on SD concerning the modifying role of the COVID-19 pandemic. To this end, the data were collected from two target groups, namely, elites (viz. experts and professionals) (n=15) and the citizens of Tehran, Iran (n=384), through a questionnaire. The research model was also designed based on expert opinions, using the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), type-II fuzzy logic, and ELECTRE III, and then modified. The given model was subsequently examined by the partial least squares regression (PLS regression). Results showed that if citizens' SR is elevated by about one-unit, social justice, sustainable economy, and stable environment would be augmented by 0.693, 0.735, and 0.583 units, respectively. SD would also grow by 0.485, 0.948, and 0.743 units if social justice, sustainable economy, and sustainable environment increased by one unit. Consequently, the results of the present study confirm the mechanism of the impact of citizens' SR on SD.
在2019冠状病毒病(COVID-19)大流行背景下，公民的社会责任(SR)与可持续发展(SD)之间存在很强的相关性。因此，本研究旨在模拟市民社会责任感对新冠肺炎大流行对社会责任感的影响。为此，通过问卷调查的方式收集了两个目标群体的数据，即精英(即专家和专业人士)(n=15)和伊朗德黑兰市民(n=384)。在专家意见的基础上，运用TOPSIS (technical for Preference Order by Similarity to Ideal Solution)、ii型模糊逻辑和ELECTRE III，设计了研究模型，并对模型进行了修正。该模型随后通过偏最小二乘回归(PLS回归)进行检验。结果表明，市民的社会满意度每提高1个单位左右，社会公正、可持续经济和稳定环境分别提高0.693、0.735和0.583个单位。社会公正、可持续经济和可持续环境每增加1个单位，SD分别增加0.485、0.948和0.743个单位。因此，本研究的结果证实了市民社会幸福感对幸福感影响的机制。
{"title":"Modeling the Impact of Citizens' Social Responsibility on Sustainable Development Based on the Modifying Role of the COVID-19 Pandemic","authors":"F. Torkashvand, H. Darabi","doi":"10.47743/pesd2023171019","DOIUrl":"https://doi.org/10.47743/pesd2023171019","url":null,"abstract":": In light of the coronavirus disease 2019 (COVID-19) pandemic, there is a strong correlation between citizens' social responsibility (SR) and sustainable development (SD). Accordingly, the present study aimed to model the impact of citizens' SR on SD concerning the modifying role of the COVID-19 pandemic. To this end, the data were collected from two target groups, namely, elites (viz. experts and professionals) (n=15) and the citizens of Tehran, Iran (n=384), through a questionnaire. The research model was also designed based on expert opinions, using the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), type-II fuzzy logic, and ELECTRE III, and then modified. The given model was subsequently examined by the partial least squares regression (PLS regression). Results showed that if citizens' SR is elevated by about one-unit, social justice, sustainable economy, and stable environment would be augmented by 0.693, 0.735, and 0.583 units, respectively. SD would also grow by 0.485, 0.948, and 0.743 units if social justice, sustainable economy, and sustainable environment increased by one unit. Consequently, the results of the present study confirm the mechanism of the impact of citizens' SR on SD.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70913707","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}
: A central idea of the concept of sustainable development refers to intergenerational responsibility. Children's well-being should be one of the focal points of policy concerns and the spatial planning process. The fundamental right of children to play should be reflected by the arrangement of unique, accessible and attractive playgrounds where children can develop their physical, social and intellectual capacities. The present study is an exploratory analysis that aims to quantify the positional, structural and functional characteristics of children's playgrounds (CPs) in two important cities of the North-East Region - Iași and Bacău . The comparative evaluation is based on: 1) the identification of the local socio-demographic context; 2) the detailed field observation of the majority of existing playgrounds in the two cities; 3) making an inventory, the assessment and systematization of the essential aspects of this facilities from the viewpoint of accessibility, attractiveness and safety; 4) the critical analysis of the elements concerning the local policies in this field and 5) the attempt to offer some concrete solutions derived either from the reality in the field or from the models offered by the scientific literature. Two fundamental ideas emerge: on the one hand, the role of playgrounds to bring children closer to nature and movement, and on the other hand, the ability of playgrounds to become equitable, environmentally friendly community spaces, vectors of urban sustainability.
{"title":"Children's playgrounds for urban sustainability: (in)accessibility, (un)attractiveness and social (in)equity in Iași and Bacău municipalities (Romania)","authors":"A. Bănică, L. Roșu, L. Șerban, I. Muntele","doi":"10.47743/pesd2023171025","DOIUrl":"https://doi.org/10.47743/pesd2023171025","url":null,"abstract":": A central idea of the concept of sustainable development refers to intergenerational responsibility. Children's well-being should be one of the focal points of policy concerns and the spatial planning process. The fundamental right of children to play should be reflected by the arrangement of unique, accessible and attractive playgrounds where children can develop their physical, social and intellectual capacities. The present study is an exploratory analysis that aims to quantify the positional, structural and functional characteristics of children's playgrounds (CPs) in two important cities of the North-East Region - Iași and Bacău . The comparative evaluation is based on: 1) the identification of the local socio-demographic context; 2) the detailed field observation of the majority of existing playgrounds in the two cities; 3) making an inventory, the assessment and systematization of the essential aspects of this facilities from the viewpoint of accessibility, attractiveness and safety; 4) the critical analysis of the elements concerning the local policies in this field and 5) the attempt to offer some concrete solutions derived either from the reality in the field or from the models offered by the scientific literature. Two fundamental ideas emerge: on the one hand, the role of playgrounds to bring children closer to nature and movement, and on the other hand, the ability of playgrounds to become equitable, environmentally friendly community spaces, vectors of urban sustainability.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70914862","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}
Alin Prisăcariu, D. Mihăilă, Petruț-Ionel Bistricean
: This study is the first of its kind, conducted for a city and its surroundings, in Romania. The air ionisation monitoring for Suceava Metropolitan Area (SvMA) was carried out with the PC Connectable Highly Accurate Air Ion Counter Tester COM-3200PRO II, in 34 points from SvMA (Suceava Metropolitan Area), in four time sequences of the year (January, March, July and November), in different parts of the day (morning, afternoon and evening), on active surfaces differentiated in properties (from anthropogenic to natural). The annual average value of the positive (n+) ion levels at the SvMA monitoring points was 576.6 ions/cm-3. The annual average of negative (n) ions at the monitoring points in SvMA in 2022 was 379.5 ions/cm-3. The study shows an annual regime of n-levels which has specifically a maximum in July (598.6 ions/cm-3) and an annual regime of n+, which has a minimum in the same month (415.3 ions/cm-3). The unipolarity coefficient (k) had a value of 1.52 for the whole of SvMA for the year 2022, ranging from 5.8 in January to 0.73 in July. The lowest k values were calculated for the observation points located in the rural localities from the vicinity of the urban perimeter of Suceava and for the natural ones from the
{"title":"The air ionisation in Suceava Metropolitan Area","authors":"Alin Prisăcariu, D. Mihăilă, Petruț-Ionel Bistricean","doi":"10.47743/pesd2023171024","DOIUrl":"https://doi.org/10.47743/pesd2023171024","url":null,"abstract":": This study is the first of its kind, conducted for a city and its surroundings, in Romania. The air ionisation monitoring for Suceava Metropolitan Area (SvMA) was carried out with the PC Connectable Highly Accurate Air Ion Counter Tester COM-3200PRO II, in 34 points from SvMA (Suceava Metropolitan Area), in four time sequences of the year (January, March, July and November), in different parts of the day (morning, afternoon and evening), on active surfaces differentiated in properties (from anthropogenic to natural). The annual average value of the positive (n+) ion levels at the SvMA monitoring points was 576.6 ions/cm-3. The annual average of negative (n) ions at the monitoring points in SvMA in 2022 was 379.5 ions/cm-3. The study shows an annual regime of n-levels which has specifically a maximum in July (598.6 ions/cm-3) and an annual regime of n+, which has a minimum in the same month (415.3 ions/cm-3). The unipolarity coefficient (k) had a value of 1.52 for the whole of SvMA for the year 2022, ranging from 5.8 in January to 0.73 in July. The lowest k values were calculated for the observation points located in the rural localities from the vicinity of the urban perimeter of Suceava and for the natural ones from the","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70914392","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}
Pub Date : 2023-01-01DOI: 10.47743//pesd2023171015
C. Kariuki
: Stewardship of environmental resources is likely to yield tremendous benefits by saving operational costs and enhancing teaching and learning. However, environmental stewardship remains a secondary subject in the management of schools. This study, therefore, sought to establish actions that school leaders have undertaken in different schools in the sampled area geared towards environmental stewardship. A survey was undertaken in sampled schools in Githunguri Sub-County of Kiambu in Kenya. Primary data was collected from 260 teachers using a structured questionnaire while data from 15 principals was obtained through interviews. The researcher also collected primary data from the schools through observation. The study established that the majority of the teachers in the study area affirmed environmental stewardship in schools was beneficial in influencing teaching and learning (70%), creating pro-environmental behaviour in teachers, students, and parents (68%), and reducing costs of operation (71%). Despite the benefits, sampled teachers affirmed that schools neither had an environment committee (90.4%) nor an environmental policy (75%). The majority of the teachers, however, asserted their schools practiced water harvesting (80.8%) as well as used improved cook stoves to save on wood fuel. Stewardship activities were however constrained by factors such as insufficient funds, limitation of time, and lack of knowledge which bore the greatest responsibility. Findings from this study will put into perspective some of the environmental good practices that schools have adopted and as such inspire future policies on environmental stewardship in public schools in Kenya. The results highlight the need for a review of educational policies on environmental stewardship if public schools are to have environmental sustainability. Further, the findings provide insights on capacity building gaps which will be useful for public school leadership training as well as contribute to behavioural change required in implementing environmental stewardship.
{"title":"Assessment of leadership actions for Environmental Stewardship Enhancement in public schools","authors":"C. Kariuki","doi":"10.47743//pesd2023171015","DOIUrl":"https://doi.org/10.47743//pesd2023171015","url":null,"abstract":": Stewardship of environmental resources is likely to yield tremendous benefits by saving operational costs and enhancing teaching and learning. However, environmental stewardship remains a secondary subject in the management of schools. This study, therefore, sought to establish actions that school leaders have undertaken in different schools in the sampled area geared towards environmental stewardship. A survey was undertaken in sampled schools in Githunguri Sub-County of Kiambu in Kenya. Primary data was collected from 260 teachers using a structured questionnaire while data from 15 principals was obtained through interviews. The researcher also collected primary data from the schools through observation. The study established that the majority of the teachers in the study area affirmed environmental stewardship in schools was beneficial in influencing teaching and learning (70%), creating pro-environmental behaviour in teachers, students, and parents (68%), and reducing costs of operation (71%). Despite the benefits, sampled teachers affirmed that schools neither had an environment committee (90.4%) nor an environmental policy (75%). The majority of the teachers, however, asserted their schools practiced water harvesting (80.8%) as well as used improved cook stoves to save on wood fuel. Stewardship activities were however constrained by factors such as insufficient funds, limitation of time, and lack of knowledge which bore the greatest responsibility. Findings from this study will put into perspective some of the environmental good practices that schools have adopted and as such inspire future policies on environmental stewardship in public schools in Kenya. The results highlight the need for a review of educational policies on environmental stewardship if public schools are to have environmental sustainability. Further, the findings provide insights on capacity building gaps which will be useful for public school leadership training as well as contribute to behavioural change required in implementing environmental stewardship.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70882705","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}
Abdelkader Elkharraz, M. Boussaid, Noureddine Djarfour, H. Moungar
: Current research on photovoltaic generators is focused on improving operational efficiency and ensuring a long-life service, previous studies indicate that the degradation of photovoltaic generators generally results from the stress of various climatic factors in the natural environment; Sandstorms being among them and possibly the most influential where surface erosion is generated. In this paper, a novel simulator to test wind and sandstorms blowing in the southwestern Algeria Desert is presented. The developed simulator was able to generate winds at different speeds, with varying sand grain densities. as well as we rotated the samples using 360° to allow the wind to reach them from all directions. These properties adopted in the simulator will be used in subsequent research in accelerated tests to predict and estimate the degradation under the influence of sandstorms separately from any other climatic factor. We created an actual database of sand and wind density, taking measurements during the monsoon season. the obtained results confirming in consistency with those measured. We have succeeded to estimate the photovoltaic unit lifetime, and ensure better operating conditions.
{"title":"Sand winds effect on the degradation of photovoltaic modules in desert environments - PART I: Simulator design and Database creating","authors":"Abdelkader Elkharraz, M. Boussaid, Noureddine Djarfour, H. Moungar","doi":"10.47743/pesd2023171001","DOIUrl":"https://doi.org/10.47743/pesd2023171001","url":null,"abstract":": Current research on photovoltaic generators is focused on improving operational efficiency and ensuring a long-life service, previous studies indicate that the degradation of photovoltaic generators generally results from the stress of various climatic factors in the natural environment; Sandstorms being among them and possibly the most influential where surface erosion is generated. In this paper, a novel simulator to test wind and sandstorms blowing in the southwestern Algeria Desert is presented. The developed simulator was able to generate winds at different speeds, with varying sand grain densities. as well as we rotated the samples using 360° to allow the wind to reach them from all directions. These properties adopted in the simulator will be used in subsequent research in accelerated tests to predict and estimate the degradation under the influence of sandstorms separately from any other climatic factor. We created an actual database of sand and wind density, taking measurements during the monsoon season. the obtained results confirming in consistency with those measured. We have succeeded to estimate the photovoltaic unit lifetime, and ensure better operating conditions.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70912443","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}
L. Apopei, D. Mihăilă, Petruț-Ionel Bistricean, Liliana Gina Lazurcă, E. Mihăilă, Vasile Papaghiuc
: The study quantifies rainfall variability, variance, trends, through the Standardized Precipitation Index (SPI) and the de Martonne Aridity Index (DMai), in Cotnari and its surroundings over the last 60 years. The current climate context makes water resources difficult to manage, not to mention the fact that the territory is under the influence of a continental climate, being situated at the western limit of the area with a negative water balance. The study is based on climate data from measurements taken from 1961 to 2020 and had as its main objective the identification of the evolutionary limits of the SPI, the frequency classes of this index for different accumulation intervals (from one month to 12 months), validation of the representative ranges of the SPI using DMai, and, in the end, with the outline of the trends that this index has had and will have in the future. According to the SPI values at the Cotnari Meteorological Station, between 68.4% (SPI 1) and 99.7 % (SPI 12) of the analyzed months, there was recorded a normal amount of rainfall. Between 16.2 % (SPI 1) and 2.0 % (SPI 12) of the months, there was a surplus water balance (extremely wet between 4.7 %) and between 14.3 % (SPI 1) and 0.0 % (SPI 12) a deficit water balance (there were no extremely dry months). The evolution trend of SPI at Cotnari from 1961 to 2020 indicates a slight increase in the quantity of precipitation.
{"title":"Assessment of precipitation excess/deficit in Cotnari and the surrounding area using the Standardized Rain Index","authors":"L. Apopei, D. Mihăilă, Petruț-Ionel Bistricean, Liliana Gina Lazurcă, E. Mihăilă, Vasile Papaghiuc","doi":"10.47743/pesd2023171020","DOIUrl":"https://doi.org/10.47743/pesd2023171020","url":null,"abstract":": The study quantifies rainfall variability, variance, trends, through the Standardized Precipitation Index (SPI) and the de Martonne Aridity Index (DMai), in Cotnari and its surroundings over the last 60 years. The current climate context makes water resources difficult to manage, not to mention the fact that the territory is under the influence of a continental climate, being situated at the western limit of the area with a negative water balance. The study is based on climate data from measurements taken from 1961 to 2020 and had as its main objective the identification of the evolutionary limits of the SPI, the frequency classes of this index for different accumulation intervals (from one month to 12 months), validation of the representative ranges of the SPI using DMai, and, in the end, with the outline of the trends that this index has had and will have in the future. According to the SPI values at the Cotnari Meteorological Station, between 68.4% (SPI 1) and 99.7 % (SPI 12) of the analyzed months, there was recorded a normal amount of rainfall. Between 16.2 % (SPI 1) and 2.0 % (SPI 12) of the months, there was a surplus water balance (extremely wet between 4.7 %) and between 14.3 % (SPI 1) and 0.0 % (SPI 12) a deficit water balance (there were no extremely dry months). The evolution trend of SPI at Cotnari from 1961 to 2020 indicates a slight increase in the quantity of precipitation.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70913738","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}
: This study aims to analyze the trends and variability of PM10 concentrations at three monitoring sites in Suceava and Botoșani cities from 2017 to 2020. The results reveal a declining trend in PM10 concentrations at the urban background stations (SV1 and BT1), while the industrial site (SV2) indicated a slight increasing trend until 2019. The cold season recorded the highest daily PM10 concentrations, with peak values of 133.5 μg/m3, 114.9 μg/m3, and 91.8 μg/m3 at SV2, BT1, and SV1, respectively. Annual average PM10 concentrations d ecreased at SV1 and BT1, showing reductions of 6.7% and 19.7% in 2020 compared to 2017, respectively. The 90.4th percentile, with a threshold limit of 50 μg/m3, exceeded the limit during the 2018-2020 period at SV2. Pearson correlation analysis indicates a significant positive correlation between PM10 and NO2 (R = 0.66 in SV2) and CO (R = 0.69 in SV2, R = 0.54 in BT1) during the winter season. Additionally, a positive correlation was observed between PM10 and benzene in BT1, during both the warm season (R = 0.41) and the cold season (R = 0.66). These results provide insights into the spatiotemporal variability of PM10 and its relationship with other air pollutants.
本研究旨在分析2017 - 2020年江苏和Botoșani城市三个监测点PM10浓度的变化趋势和变化率。结果表明，2019年城市背景站(SV1和BT1) PM10浓度呈下降趋势，工业基地(SV2) PM10浓度呈小幅上升趋势。冬季PM10日浓度最高，SV2、BT1和SV1的峰值分别为133.5、114.9和91.8 μg/m3。SV1和BT1的年平均PM10浓度有所下降，与2017年相比，2020年分别下降6.7%和19.7%。第90.4百分位的阈值为50 μg/m3，超过了2018-2020年SV2期间的限值。Pearson相关分析显示，冬季PM10与NO2 (SV2 R = 0.66)、CO (SV2 R = 0.69, BT1 R = 0.54)呈显著正相关。此外，在暖季(R = 0.41)和冷季(R = 0.66)， BT1中PM10与苯呈显著正相关。这些结果为PM10的时空变异性及其与其他空气污染物的关系提供了见解。
{"title":"2017–2020 trends of particulate matter PM10 concentrations in the cities of Suceava and Botoșani","authors":"Liliana DRAGOI (ONIU), I. Breabăn, M. Cazacu","doi":"10.47743/pesd2023171023","DOIUrl":"https://doi.org/10.47743/pesd2023171023","url":null,"abstract":": This study aims to analyze the trends and variability of PM10 concentrations at three monitoring sites in Suceava and Botoșani cities from 2017 to 2020. The results reveal a declining trend in PM10 concentrations at the urban background stations (SV1 and BT1), while the industrial site (SV2) indicated a slight increasing trend until 2019. The cold season recorded the highest daily PM10 concentrations, with peak values of 133.5 μg/m3, 114.9 μg/m3, and 91.8 μg/m3 at SV2, BT1, and SV1, respectively. Annual average PM10 concentrations d ecreased at SV1 and BT1, showing reductions of 6.7% and 19.7% in 2020 compared to 2017, respectively. The 90.4th percentile, with a threshold limit of 50 μg/m3, exceeded the limit during the 2018-2020 period at SV2. Pearson correlation analysis indicates a significant positive correlation between PM10 and NO2 (R = 0.66 in SV2) and CO (R = 0.69 in SV2, R = 0.54 in BT1) during the winter season. Additionally, a positive correlation was observed between PM10 and benzene in BT1, during both the warm season (R = 0.41) and the cold season (R = 0.66). These results provide insights into the spatiotemporal variability of PM10 and its relationship with other air pollutants.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70914322","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}
: Emerging territorial systems are territorial realities with a spectacular dynamic essential in defining a certain type of territorial development, which aims to achieve social, economic and cultural facilities. Changing attitudes and developing a governance culture is indicated as an essential condition to improve the capacity of emerging territorial systems to pursue territorial and social development. The study aims to highlight the fact that governance is a prerequisite for territorial and social development, specific to the emerging territorial system of cities. In this sense, we proposed the analysis of the demographic evolution, as well as the turnover in relation to the value of the population, in emerging territorial structures of the city of Ploiești, in the period 2000 - 2020, in order to observe the fact that the dynamics of the indicators highlight the need for governance in the systems emerging territorial cities. Based on statistical support, obtained from the National Institute of Statistics (INS) and the Center for Integrated Analysis and Territorial Management, we created graphic models that provided us with the demographic evolution, as well as the evolution of turnover dynamics in relation to the number residents. The results show increases in indicators of different intensities, which reflect the lack of a unitary administrative system of the emerging territorial system of the city of Ploiești, generated by the decisions of local administrations. Territorial governance thus becomes the necessary condition through which territorial development is pursued, to achieve social, economic and cultural facilities, characteristic of the emerging territorial system.
{"title":"Territorial governance, a prerequisite condition for the development of emerging territorial systems. Case study - the Ploiesti city","authors":"Tonia- Steluța Bucurică","doi":"10.47743/pesd2023171004","DOIUrl":"https://doi.org/10.47743/pesd2023171004","url":null,"abstract":": Emerging territorial systems are territorial realities with a spectacular dynamic essential in defining a certain type of territorial development, which aims to achieve social, economic and cultural facilities. Changing attitudes and developing a governance culture is indicated as an essential condition to improve the capacity of emerging territorial systems to pursue territorial and social development. The study aims to highlight the fact that governance is a prerequisite for territorial and social development, specific to the emerging territorial system of cities. In this sense, we proposed the analysis of the demographic evolution, as well as the turnover in relation to the value of the population, in emerging territorial structures of the city of Ploiești, in the period 2000 - 2020, in order to observe the fact that the dynamics of the indicators highlight the need for governance in the systems emerging territorial cities. Based on statistical support, obtained from the National Institute of Statistics (INS) and the Center for Integrated Analysis and Territorial Management, we created graphic models that provided us with the demographic evolution, as well as the evolution of turnover dynamics in relation to the number residents. The results show increases in indicators of different intensities, which reflect the lack of a unitary administrative system of the emerging territorial system of the city of Ploiești, generated by the decisions of local administrations. Territorial governance thus becomes the necessary condition through which territorial development is pursued, to achieve social, economic and cultural facilities, characteristic of the emerging territorial system.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70912595","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}
: Illegal dumping is a matter of concern particularly to local municipalities which are incapable of handling and managing volumes of waste produced from households. This study used a quantitative research design for fieldwork observation and structured questionnaires across three residential classes to assess the intensity and determinants of illegal waste dumping. Based on residential class (low, medium, and high), we found that the low-income areas had more problems of waste management compared to the medium and high-income residential areas. The low-income residents were without access to municipal waste collection services and opted to dump waste illegally. The Chi-square test showed positive significant relationship between the intensity of illegal waste dumping and several socio-economic variables of the respondents such as household income (12.063), gender (8.031), education (7.471) and age (7.945). We therefore suggest that besides communities taking initiatives such as recycling and composting if waste is not collected, urban stakeholders should be more focused on the highly low-income communities. The study has critical planning implications for sustainable waste management and environmental integrity.
{"title":"A residential class-based comparative analysis of the intensity of illegal waste dumping in Gauteng, South Africa","authors":"Lobina Gertrude Palamuleni, Fortune Eddy Tshabalala","doi":"10.47743/pesd2023171014","DOIUrl":"https://doi.org/10.47743/pesd2023171014","url":null,"abstract":": Illegal dumping is a matter of concern particularly to local municipalities which are incapable of handling and managing volumes of waste produced from households. This study used a quantitative research design for fieldwork observation and structured questionnaires across three residential classes to assess the intensity and determinants of illegal waste dumping. Based on residential class (low, medium, and high), we found that the low-income areas had more problems of waste management compared to the medium and high-income residential areas. The low-income residents were without access to municipal waste collection services and opted to dump waste illegally. The Chi-square test showed positive significant relationship between the intensity of illegal waste dumping and several socio-economic variables of the respondents such as household income (12.063), gender (8.031), education (7.471) and age (7.945). We therefore suggest that besides communities taking initiatives such as recycling and composting if waste is not collected, urban stakeholders should be more focused on the highly low-income communities. The study has critical planning implications for sustainable waste management and environmental integrity.","PeriodicalId":42850,"journal":{"name":"Present Environment and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70913073","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}
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