Environmental Science and Pollution Research最新文献

{"title":"Environmental DNA (eDNA): an eco-friendly approach for conservation of Indian freshwater diversity-a review.","authors":"Ashish Sahu, Mahender Singh, Rishikesh Krishan Laxmi, Tarang Kumar Shah, Madhu Sharma","doi":"10.1007/s11356-025-36202-z","DOIUrl":"https://doi.org/10.1007/s11356-025-36202-z","url":null,"abstract":"<p><p>Freshwater ecosystems have been among the most vulnerable habitats worldwide for the last 50 years. It has been experiencing varying degrees of decline across the planet due to combination of global changes, including anthropogenic activities and climate change in recent decades. As a result, monitoring the diversity of freshwater ecosystems and their biota has emerged as a hotspot area of research in light of this diminishing variety. Environmental DNA (eDNA) has demonstrated its utility in biodiversity studies, particularly for identifying fish species and measuring fluctuations in species richness, owing to its numerous advantages. eDNA represents an environmentally sustainable and cost-effective approach that can identify and quantify a broad spectrum of taxa from any ecosystem without adversely impacting native species or their habitats. These genetic material consists of short DNA fragments or cellular components released by aquatic organisms through various means, including skin, urine, faeces, mucus, and cellular debris, into environments such as water, air, soil, or sediment. The potential of eDNA is further enhanced by next-generation sequencing (NGS), which allows for simultaneous analysis of all DNA present in single run. Our systematic review of eDNA research (2008 to 2024) showed that 32.79% of studies focused on freshwater ecosystems, with 30.2% targeting fish diversity assessment. The analysis also reveals a steady increase in eDNA-related publications, reflecting growing global interest in its application for biodiversity assessment and conservation (38.92%). Through this present review, Indian researchers, as well as non-molecular biologists, can gain better understanding of eDNA metabarcoding concept and its methodological overview.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphoanatomical and metabolic changes in Bixa orellana L. (Bixaceae) exposed to atmospheric fluorine.","authors":"Thamires Fernanda Gomes, Franklin Patrocínio Rezende, Ademir Martins Lima, Genaina Aparecida de Souza, José Danizete Brás Miranda, Alice Pita Barbosa, Luzimar Campos da Silva","doi":"10.1007/s11356-025-36293-8","DOIUrl":"https://doi.org/10.1007/s11356-025-36293-8","url":null,"abstract":"<p><p>Fluorine (F) is a toxic element for plants and can cause damage even at low concentrations. Brazil has several anthropogenic sources of F; however, relatively few native species have been studied. Thus, the objective of this study was to evaluate the responses promoted by F in Bixa orellana, a species native to South America and economically important for producing bixin, a pigment used as a natural dye in the food, cosmetic, and textile industries. The plants were subjected to simulated rain containing 0, 10, 20, and 40 mg/L of F. Visual analyses were performed during the experiment, and at the end, gas exchanges, photosynthetic pigments, and F were quantified, and leaf samples were collected for light and scanning electron microscopy and cell death testing. The concentration of F in B. orellana increased according to the concentration used in each treatment. There was a reduction in CO₂ assimilation (A), stomatal conductance (gs), respiration (R_d), and photosynthetic pigment content in all plants exposed to the pollutant. Chloroses, necroses, and wrinkling occurred in the leaves of plants exposed to F. The stress also resulted in anatomical damage to the leaves, which showed atrophied epidermal cells and flaccid glandular trichomes. Laticifers and spongy and palisade parenchyma cells were plasmolyzed. Additionally, blue-stained cell groups indicating cell death were observed in the leaves of all treatments containing F. It is concluded that B. orellana is sensitive to F and responds quickly to the presence of this pollutant, making it a potential phytoindicator species for F in the atmosphere in possible biomonitoring programs.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Capture of gaseous and fine particulate pollutants emitted in the biomass post-combustion process.","authors":"Maria Angélica Martins Costa, Alexandre Jorge Duarte de Souza, Bruna Sampaio Mello, Eliza Almeida de Oliveira, Lucas Freitas Oliveira, Geisa Albini, Arnaldo Sarti, Kelly Johana Dussán","doi":"10.1007/s11356-025-36242-5","DOIUrl":"https://doi.org/10.1007/s11356-025-36242-5","url":null,"abstract":"<p><strong>Purpose: </strong>Emissions of gaseous pollutants, particularly carbon dioxide (CO₂) and particulate matter, are increasing, primarily due to anthropogenic combustion of conventional fossil fuels. These emissions drive global warming and climate change, contributing to significant environmental and health impacts. This scenario highlights the urgent need for cleaner energy solutions, prompting industries and power plants to transition rapidly to sustainable sources such as biomass. While biomass combustion is carbon neutral regarding atmospheric CO₂, it still generates particulate matter that must be controlled. Integrated strategies for CO₂ capture, sequestration, storage, and utilization, along with effective particulate capture, are essential for reducing greenhouse gas emissions and minimizing health risks.</p><p><strong>Aim: </strong>This study primarily evaluates laboratory- and pilot-scale technologies for mitigating industrial CO₂ and fine particulate matter emissions from biomass combustion.</p><p><strong>Methods: </strong>Emissions of gaseous and particulate pollutants were evaluated using a pilot burner. Initial CO₂ capture tests were performed in a laboratory absorption column, followed by biomass combustion evaluations using a Venturi scrubber for gas capture and particulate removal.</p><p><strong>Results: </strong>The results indicated low CO₂ capture efficiencies without chemical reactions. When a NaOH solution was used for chemical absorption at flow rates of 1.4, 1.8, and 2.0 L/min, capture efficiencies improved to 10.3, 10.4, and 17.24%, respectively. The Venturi scrubber effectively captured particulate matter but was less effective for CO₂, although it performed well in capturing CO and NO_x gases.</p><p><strong>Conclusion: </strong>Emissions of gaseous pollutants and PM were significantly high during the burning of biomass, such as sugar cane bagasse. The results showed high capture efficiencies for PM below 1.0 μm, reaching values above 80%. Advancements in capture technologies can help industries transition to sustainable practices, addressing both climate goals and air quality standards.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143699409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Concentrations, characteristics, and human health exposure assessment of microplastics and heavy metals in freshwater fish in a potable water supply reservoire.","authors":"Emmanuel Robert Blankson, Godwin Sabah, Moses Quanin, Stephen Amponsem, Akosua Tokua Larbi, Kweku Rockson Prempeh, Huldah Esi Shaw, Juanita Naa Morkor Williams, Charles Mario Boateng, Francis Gbogbo","doi":"10.1007/s11356-025-36317-3","DOIUrl":"10.1007/s11356-025-36317-3","url":null,"abstract":"<p><p>Microplastic pollution in the environment is a global concern because it exposes the ecosystem and biota to microplastics and other contaminants that adsorp to their surfaces. Fish are regularly consumed by humans, exposing people to microplastics through their consumption. In this study, we investigated microplastics and heavy metals in catfish (Clarias gariepinus) and tilapia (Oreochromis niloticus) in a portable water supply reservoir in Ghana. We quantified microplastics (MPs) and polymer composition in the guts and muscles of the fish using microscopic identification and Fourier Transform Infrared Spectroscopy (FTIR). The Atomic Absorption Spectroscopy (AAS) was used to quantified the levels of zinc (Zn), copper (Cu), and lead (Pb) in the muscles and gills. The results indicated that the mean number of MPs in the guts for tilapia and catfish were 9.17 ± 1.47 MPs/individual and 7.655 ± 0.93 MPs/individual respectively. The mean number of MPs in the muscles for tilapia and catfish were 0.86 ± 0.41MPs/g and 1.21 ± 0.61MPs/g respectively. In terms of abundance, fibers were the most common type of microplastic in both species, accounting for 92% in tilapia and 76.5% in catfish. The identified polymers were polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester (PES), and cellophane (CP). PE was the most abundant polymer found in the fish, while CP was the least abundant, accounting for 40% and 8%, respectively. The exposure assessment suggests that consuming catfish exposes people to more microplastics than consuming tilapia. Heavy metals were found to accumulate more in the gills than in the muscles of the fish. The heavy metal levels in the muscles were higher in tilapia than in the catfish, however, the levels of metals detected in both species were within recommended limits, posing no risk to consumers. For tilapia, the concentrations of Zn, Pb, and Cu in the gills were 24.59 ± 1.88 mg/kg, 1.99 ± 0.28 mg/kg, and 1.51 ± 0.12 mg/kg respectively. The concentrations of Zn, Pb and Cu in the muscles of tilapia were 10.67 ± 2.09 mg/kg, 0.31 ± 0.06 mg/kg and 0.18 ± 0.04 mg/kg respectively. The concentrations of Zn, Cu and Pb in the gills of catfish were 8.08 ± 1.31 mg/kg, 1.38 ± 0.14 mg/kg, and 1.18 ± 0.15 mg/kg respectively. In the muscles of catfish, the concentrations of Pb and Cu were below detection, and the concentration of Zn was 3.51 ± 1.39 mg/kg. The study also showed a moderate positive relationship between lead (Pb) levels in gills and muscles and microplastics in the muscle of tilapia. Overall, the study shows the occurrence of MPs and heavy metals in both species, with higher heavy metal concentrations in the gills than in the muscles. The findings suggest that microplastics could potentially act as vectors for heavy metals in fish.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143699352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel heterogeneous magnetically retrievable g-C3N4/ZnO/SrFe12O19 B-type dual Z-scheme heterostructure for recuperated photo-Fenton degradation of organic dye adulterants from wastewater","authors":"Twinkle Garg,&nbsp;Simranjeet Kaur,&nbsp; Nitansh,&nbsp;Sonal Singhal","doi":"10.1007/s11356-025-36260-3","DOIUrl":"10.1007/s11356-025-36260-3","url":null,"abstract":"<div><p>With the goal to boost the separation of photogenerated electron–hole pairs in semiconductor and enhance the photocatalytic performance of the material, herein, novel magnetically recoverable ternary g-C₃N₄/ZnO/SrFe₁₂O₁₉ (CZSr) dual Z-scheme heterojunction systems with varying ratios of SrFe₁₂O₁₉ were fabricated via sonication calcination strategy. The crystal structure, surface morphology, chemical composition, and optical characteristics of prepared materials were observed using different analytical tools. Benefitting from the enhanced charge carriers’ separation, wide visible light adsorptive property, and good charge transfer capacity, the optimized CZSr-11 revealed excellent photocatalytic performance towards degradation of two azo dyes, methylene blue (MB), and remazol brilliant yellow (RBY) displaying maximum % removal with 99% and 97% confiscation of MB and RBY, respectively, in just 20 min. Dual Z-scheme charge transfer abetted with photo-Fenton mechanism was observed to be responsive for the improvised degradation capability by ternary heterostructure. Radical trapping experiment results demonstrated the role of three reactive species HO^•, ^•O₂^‒, and h⁺ towards confiscation of model pollutants. Moreover, the fabricated material possessed excellent recoverability and reusability, thus making it reliable for practical usage. Thus, this study presents a pioneering perception of utilizing visible light harnessing heterojunction systems for organic pollutants’ removal from aqueous environment.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"32 14","pages":"9280 - 9296"},"PeriodicalIF":5.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143690736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Economic viability and resident preferences for greywater reuse in Chile","authors":"Fernanda Cepeda,&nbsp;Oscar Melo,&nbsp;María Molinos-Senante","doi":"10.1007/s11356-025-36058-3","DOIUrl":"10.1007/s11356-025-36058-3","url":null,"abstract":"<div><p>Water scarcity is one of the main challenges society faces. Hence, alternative water sources, such as greywater, rainwater, or treated wastewater, are becoming relevant. The main objective of the present investigation was to assess the preferences for greywater reuse under two drinking water availability scenarios and its impact on the economic feasibility of greywater reuse at different housing types: (i) houses in a condominium (<i>n</i> = 84), (ii) apartments in 2 to 7-story buildings (<i>n</i> = 98), and (iii) apartments in 8- to 25-story buildings (<i>n</i> = 120). A choice experiment was conducted in the Metropolitan Region of Santiago, Chile. The willingness to pay (WTP) for greywater reuse ranged between 45.97 and 182.65 USD/month/household for people in the 8 to 25 story buildings without water rationing and in condominium houses with water rationing, respectively. The economic feasibility assessment of greywater reuse was based on implementation costs and benefits from water savings and from the WTP estimation. When the economic assessment is based only on costs and benefits with market value, greywater reuse is not economically feasible in none of the six situations modeled. By contrast, only for condominium houses without water rationing greywater reuse is not economically feasible when people’s WTP is added to the benefits. These results are useful to support decision-making to promote greywater reuse in areas with water scarcity.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"32 14","pages":"9250 - 9270"},"PeriodicalIF":5.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143699360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of CO2 curing on the long-term performance of oriented cement-bonded boards after wet-dry cycles","authors":"Matheus R. Cabral,&nbsp;Erika Y. Nakanishi,&nbsp;Sérgio F. Santos,&nbsp;Juliano Fiorelli","doi":"10.1007/s11356-025-36277-8","DOIUrl":"10.1007/s11356-025-36277-8","url":null,"abstract":"<div><p>This study evaluates the influence of CO₂ curing on oriented cement-bonded boards’ long-term performance. The boards used hardwood (<i>Eucalyptus</i> spp.) and softwood (<i>Pinus</i> spp.) strands. After being manufactured and aged for 24 h, the boards undertook two curing processes: control curing and CO₂ curing for 12 h, followed by saturation until the 28th day. Subsequently, the boards underwent rigorous testing, enduring 100 wetting and drying cycles. The study assessed hardwood and softwood boards’ physical and mechanical properties according to international standards. Thermal and mineralogical analyses showed that CO₂ curing reduced calcium hydroxide content while increasing the boards’ calcium carbonate content. The results indicated that CO₂ curing significantly improved the boards’ physical and mechanical properties. Even after undergoing 100 wetting and drying cycles, the CO₂-cured boards met ISO 8335 recommendations for cement boards. Specifically, CO₂ curing increased the modulus of rupture by 119% for hardwood and 72% for softwood boards, while the modulus of elasticity values exhibited a substantial rise of 179% for hardwood and 121% for softwood boards. These findings demonstrate CO₂ curing’s potential to enhance the durability of oriented cement-bonded boards.\u0000</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"32 14","pages":"9271 - 9279"},"PeriodicalIF":5.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143690731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The prospect of bamboo and non-fodder rice husk for sustainable bioethanol production","authors":"Niyam Dave,&nbsp;Deepthi Hebbale","doi":"10.1007/s11356-025-36271-0","DOIUrl":"10.1007/s11356-025-36271-0","url":null,"abstract":"<div><p>Due to the rapid industrialization globally, there is a constant increase in demand for energy, which drives up fuel prices and contributes to the depletion of fossil fuels. The rise in the use of fossil fuels results in increasing greenhouse gas emissions contributing to biodiversity loss. Thus, the development of alternative green biofuel (e.g., bioethanol) from renewable and surplus biomass resources has taken center stage as our attention is drawn to environmental concerns and energy security. However, till now, the studies pertaining to the process optimization and techno-economic analysis of bioethanol production using indigenous non-conventional biomass resources are scarcely reported for the industrial application. Henceforth, this study employed <i>Bambusa bambos</i> (BB) culm and non-fodder rice husk (NFRH) as the raw material due to its high holocellulose content (60–70%) for bioethanol production and based on its biomass availability in the agrarian state of Karnataka (India). Thereupon, the statistical design of experiment (DoE) method was applied for the thermo-chemical pretreatment optimization of the collected biomass resources, and the fermentation was performed using osmotolerant Angel™ yeast for the bioethanol production. Overall, the maximum reducing sugar (RS) concentration of 70.7 ± 2.6 g/L under optimal condition of 10% (w/v) loading at 121 °C for 30 min using 0.3 M sulfuric acid and bioethanol concentration of 4.7 ± 0.8 g/L (0.42 g/g RS) with conversion efficiency of 70% was obtained from the indigenous BB biomass, whereas the NFRH biomass yielded the maximal concentration of RS around 91.5 ± 2.2 g/L as per optimized conditions [15% w/v loading at 121 °C for 30 min using 0.5 M sulfuric acid] with 61% saccharification efficiency and bioethanol productivity of 5.3 ± 0.4 g/L (0.10 g/g RS). Conclusively, 61–101 L of bioethanol is estimated from 1 tonne of BB and NFRH biomass resources from the study with net energy ratio of greater than 1.0, low carbon footprint (0.14–1.97 kg carbon dioxide equivalent), bioconversion of 10–40% as per the mass-balance analysis, and production costing of less than 100 ₹/L; hence, this result provides a cost-effective sustainable solution for bioethanol production that can raise farmers income as well as enables the rural development.</p><h3>Graphical abstract</h3><p>Prospect of bamboo and non-fodder rice husk for sustainable bioethanol production</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"32 14","pages":"9236 - 9249"},"PeriodicalIF":5.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143690696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic response of vegetation, land surface temperature and carbon storage to changes in land use and land cover in Mysuru City, Karnataka, India","authors":"Sajeesh Viswambharan,&nbsp;Javaid Ahmad Tali,&nbsp;Indu Tarur Kumaramkandath,&nbsp;Mifta ul Shafiq,&nbsp;Mudasir Majid Malik,&nbsp;Zoya Kulsum Naqashbandi,&nbsp;Zahra Bathool,&nbsp;Fayaz Ahmad Malla,&nbsp;Hilal Ahmad Ganaie","doi":"10.1007/s11356-025-36273-y","DOIUrl":"10.1007/s11356-025-36273-y","url":null,"abstract":"<div><p>Land use and land cover (LULC) changes are associated with notable environmental concerns, such as alterations in land surface temperature, loss of vegetation and the impact on carbon sequestration, especially within urban settings. Urban planners worldwide are investigating these impacts. A study utilizing remote sensing and geographic information system techniques examined changes in land surface temperature (LST), normalized difference vegetation index (NDVI) and carbon sequestration in Mysuru City from 1992 to 2022. The results showed a 2.39% decrease in vegetation cover and a substantial 36.97% increase in urban areas, leading to elevated LST by an average of 4 °C. Carbon storage has significantly declined to 25 Mg ha⁻¹ in 2022 from 56 Mg ha⁻¹ in 1992. The spatial extent of zero-level carbon storage has steadily diminished over the years. The analysis indicates a negative relationship between LST and carbon storage, with a weak correlation explained by a coefficient of determination (<i>R</i>²) value of 0.063 in 1992 and 0.024 in 2022. Conversely, a positive relationship exists between the NDVI and carbon storage, suggesting that effective strategies such as afforestation, reforestation and urban greening practices can enhance carbon sequestration capacity and mitigate climate change impacts in rapidly growing cities. The results of this study offer valuable insights for city planners and policymakers, aiding in the identification of areas experiencing increased LST and diminishing natural landscapes. Furthermore, the study can serve as a foundation for identifying urban hotspots, cold spots and areas conducive to urban thermal comfort. The results of this study can be enhanced by using a higher spatial resolution satellite dataset, thus providing a prospect for future research.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"32 14","pages":"9213 - 9235"},"PeriodicalIF":5.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial intelligence to evaluate the impact of urban green and blue spaces on chlorophyll-a concentrations.","authors":"Panchali U Fonseka, Lakindu Mampitiya, Namal Rathnayake, Hongsheng Zhang, Chaminda Samarasuriya, Ranjith Premasiri, Upaka Rathnayake","doi":"10.1007/s11356-025-36292-9","DOIUrl":"https://doi.org/10.1007/s11356-025-36292-9","url":null,"abstract":"<p><p>Urbanization is accelerating rapidly, highlighting the critical role of aligning with sustainable development goals, urban green and blue spaces (UGS and UBS). These spaces play a crucial role in enhancing the health and well-being of city residents in terms of ecology. Acknowledging the importance of urban ecology, this study utilizes Sentinel-2A data and support vector machine classification, aimed to identify UGS and UBS. To examine the connections between UGS and UBS, specific indices, spectral bands, and textures were calculated. Additionally, the concentration of chlorophyll, a vital indicator of ecological health, was assessed using three indices. Structural equation modeling was employed to elucidate the relationship between UGS and UBS and their impact on chlorophyll concentration for the years 2017 and 2023. In the 2017 model, UGS exhibited a positive path coefficient (0.25) with chlorophyll-a, indicating that an increase in UGS is associated with an increase in chlorophyll levels. Conversely, in 2023, the path coefficient turned negative (- 0.83), presenting a stark contrast to the 2017 model. This shift suggests potential environmental or urban development changes, such as alterations in the quality or type of urban green spaces, potentially including more non-native or ornamental plants that contribute less to overall chlorophyll levels. UGS can be subjected to pollution, soil compaction, and other stressors that reduce plant health. Similarly, the UBS showed an increase in its path coefficient from - 0.99 in 2017 to - 1.8 in 2023, suggesting improvements such as cleaner water or urban planning strategies aimed at reducing water pollution. The consistent negative relationship across both years suggests that urban water bodies are not contributing to Chl levels due to complex interactions of water bodies with their urban surroundings. However, further research is essential to delve into these dynamics and comprehend the implications for urban ecological planning and sustainability.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}