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The Carbon Sink Conservation Areas (CSCAs) as a land use strategy for climate change mitigation 碳汇保护区(CSCAs)作为减缓气候变化的土地利用战略
Sustainable Horizons Pub Date : 2025-03-27 DOI: 10.1016/j.horiz.2025.100141
Tianyu Wang , Wenze Yue , Tong Wu , Jinhui Xiong , Haoxuan Xia , Bo Huang
{"title":"The Carbon Sink Conservation Areas (CSCAs) as a land use strategy for climate change mitigation","authors":"Tianyu Wang ,&nbsp;Wenze Yue ,&nbsp;Tong Wu ,&nbsp;Jinhui Xiong ,&nbsp;Haoxuan Xia ,&nbsp;Bo Huang","doi":"10.1016/j.horiz.2025.100141","DOIUrl":"10.1016/j.horiz.2025.100141","url":null,"abstract":"<div><div>Achieving global “carbon neutrality” necessitates maximizing the carbon sequestration potential of terrestrial ecosystems. While the importance of enhancing terrestrial carbon sequestration is widely acknowledged, translating this goal into effective land use policies at local scales remains a significant challenge. This study proposes a novel, grid-based strategy for establishing Carbon Sink Conservation Areas (CSCAs) that explicitly considers the projected impacts of future climate change on carbon sequestration potential. Using an integrated modeling approach incorporating the Integrated Biosphere Simulator (IBIS) and the Land Use and Carbon Scenario Simulator (LUCAS), we evaluated the carbon sequestration dynamics under various land use scenarios. Our results demonstrate that incorporating strategically designated CSCAs can enhance carbon sequestration by an additional 1,180–1,900 kt C over the simulation period. Analysis of interannual variability highlights a substantial increase in the carbon sequestration benefits of CSCAs strategy post-2027, indicating its long-term efficacy. Our analysis further indicates that, by 2035, future land use changes guided solely by China's Ecological Conservation Red Line (ECR) strategy are projected to become a carbon source. In contrast, adopting CSCAs can reverse this trajectory, enabling land use across the entire region to function as a carbon sink. These findings provide a robust scientific basis for informing land use planning and policy decisions aimed at mitigating climate change through enhanced terrestrial carbon sequestration.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"15 ","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Data-driven modeling indicates projected increase in plant production confines warming-induced topsoil organic carbon change in China within a small range in the 21st Century 数据驱动的模型表明,预计植物产量的增加将在21世纪将中国由变暖引起的表层土壤有机碳变化限制在一个小范围内
Sustainable Horizons Pub Date : 2025-03-18 DOI: 10.1016/j.horiz.2025.100138
Huiwen Li , Yue Cao , Yiping Wu , Shuguang Liu , Wenzhi Zhao , Guoyi Zhou , Jingfeng Xiao , Georgii Alexandrov , Linjing Qiu
{"title":"Data-driven modeling indicates projected increase in plant production confines warming-induced topsoil organic carbon change in China within a small range in the 21st Century","authors":"Huiwen Li ,&nbsp;Yue Cao ,&nbsp;Yiping Wu ,&nbsp;Shuguang Liu ,&nbsp;Wenzhi Zhao ,&nbsp;Guoyi Zhou ,&nbsp;Jingfeng Xiao ,&nbsp;Georgii Alexandrov ,&nbsp;Linjing Qiu","doi":"10.1016/j.horiz.2025.100138","DOIUrl":"10.1016/j.horiz.2025.100138","url":null,"abstract":"<div><div>Understanding the dynamics of soil organic carbon (SOC) in the topsoil, the most sensitive part of soil profile to climate change, under future climate trajectories is vital for achieving carbon neutrality in China. However, large uncertainties and controversies exist in Earth System Model (ESM) simulations. We used a data-driven model to assess the responses of SOC to future climate change and quantified the critical biomass carbon input (i.e., net primary production, NPP) to preserve the current SOC level. Our results suggest that future warming alone may reduce the national topsoil organic carbon stock by 605.3 Tg C (1.72 %) by the end of the 21st century under the representative concentration pathway 8.5 (RCP8.5). However, the projected increase in precipitation cannot offset the negative impact of warming under all climate trajectories. We estimate that 18.5 %, 38.0 %, and 46.5 % of additional NPP are required in the 2030s, 2060s, and 2090s to offset the national SOC loss under RCP8.5, respectively. Further simulations driven by the NPP projections of ESMs suggest that the increasing NPP can confine warming-induced SOC loss within a small range and even slightly increase SOC in the 2090s under RCP4.5 and 8.5. Nevertheless, SOC dynamics show large spatial discrepancy, and regions with high SOC levels, especially Northeast and Southwest of China, have a high potential of losing carbon and deserve more attention. This work extends our knowledge about the future dynamics of topsoil organic carbon in China and can be a reference for current ESMs to produce more robust regional predictions.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"15 ","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative contributions of primary emission and secondary production of HONO from unfertilized soil in Eastern China 中国东部未施肥土壤HONO一次排放与二次生产贡献比较
Sustainable Horizons Pub Date : 2025-03-14 DOI: 10.1016/j.horiz.2025.100136
Mei-Yi Fan , Yan-Kun Xiang , Yan-Lin Zhang , Yu-Chi Lin , Fang Cao , Ruonan Jiang , Xiaoyan Liu , Hang Su
{"title":"Comparative contributions of primary emission and secondary production of HONO from unfertilized soil in Eastern China","authors":"Mei-Yi Fan ,&nbsp;Yan-Kun Xiang ,&nbsp;Yan-Lin Zhang ,&nbsp;Yu-Chi Lin ,&nbsp;Fang Cao ,&nbsp;Ruonan Jiang ,&nbsp;Xiaoyan Liu ,&nbsp;Hang Su","doi":"10.1016/j.horiz.2025.100136","DOIUrl":"10.1016/j.horiz.2025.100136","url":null,"abstract":"<div><div>Nitrous acid (HONO), as a crucial precursor of hydroxyl radical (OH) in the atmosphere, dominates the atmospheric oxidizing capacity. Soil microbial activity is a considerable HONO emission source. However, soil can also provide a reaction interface for the secondary production of HONO, but its importance has not been quantitatively demonstrated in the field environment. In this study, observations of stable nitrogen isotope (δ<sup>15</sup>N) and oxygen isotope anomaly (Δ<sup>17</sup>O) of HONO released from farmland soil were conducted to identify the relative importance of primary and secondary HONO sources. The results showed that the HONO emission flux (<em>F</em><sub>HONO</sub>), δ<sup>15</sup>N-HONO, and Δ<sup>17</sup>O-HONO exhibited differences between intensive fertilization and idle farmland soils, which were 43.9 ± 11.8 ng m<sup>-2</sup> s<sup>-1</sup> and 4.8 ± 2.7 ng m<sup>-2</sup> s<sup>-1</sup> for <em>F</em><sub>HONO</sub>, -24.3 ± 4.2 ‰ and −19.1 ± 6.3 ‰ for δ<sup>15</sup>N-HONO, and 0.6 ± 0.3 ‰ and 6.2 ± 2.0 ‰ for Δ<sup>17</sup>O-HONO, respectively. Constrained by Δ<sup>17</sup>O and δ<sup>15</sup>N observations of HONO from farmland soil using a Bayesian isotope mixing model, we quantified that 95 % of the <em>F</em><sub>HONO</sub> during the intensive fertilization period was contributed by soil bacterial activities, including 47 ± 10 % by nitrification and 48 ± 10 % by denitrification. In idle farmland, where the effects of fertilization are not evident, primary emissions originating from bacterial activities accounted for 48 % to 62 % of the HONO emission flux. The remaining 38 % to 52 % of F<sub>HONO</sub> was attributed to the heterogeneous hydrolysis of NO₂ occurring on the soil surface. The results highlighted the important contribution of secondary HONO production on the soil surface, a factor that should be considered in model framework for the simulation of soil HONO emissions.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"14 ","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Risk assessment of pyridaben exposure on neurodevelopment of offspring by using TRAEC strategy 利用 TRAEC 策略评估接触哒螨灵对后代神经发育的风险
Sustainable Horizons Pub Date : 2025-03-01 DOI: 10.1016/j.horiz.2025.100135
Shuangshuang Zhao , Qiaoqiao Xu , Yan Su , Yin Zhuang , Quanquan Guan , Zhaofeng Liu , Yankai Xia , Rong Shen
{"title":"Risk assessment of pyridaben exposure on neurodevelopment of offspring by using TRAEC strategy","authors":"Shuangshuang Zhao ,&nbsp;Qiaoqiao Xu ,&nbsp;Yan Su ,&nbsp;Yin Zhuang ,&nbsp;Quanquan Guan ,&nbsp;Zhaofeng Liu ,&nbsp;Yankai Xia ,&nbsp;Rong Shen","doi":"10.1016/j.horiz.2025.100135","DOIUrl":"10.1016/j.horiz.2025.100135","url":null,"abstract":"<div><div>As a mitochondrial complex I inhibitor, pyridaben has been found to have the adverse effects on spermatogenesis, embryonic development and neurons. However, the effects of pyridaben exposure on offspring neurodevelopment are still insufficient. In this study, the risk of pyridaben exposure on the neurodevelopment of offspring was assessed by one novel strategy called Targeted Risk Assessment of Environmental Chemicals (TRAEC), which give a comprehensive assessment based on four dimensions (the reliability, correlation, outcome fitness and integrity) of published and researchers’ own evidences. Six studies (one epidemiological study, two <em>in vivo</em> studies and three <em>in vitro</em> studies) and our supplementary evidences were finally enrolled for a final scoring system. After the evidence scoring, a composite risk score of 5.64 was gotten, indicating a medium-level risk of pyridaben on the neurodevelopmental in offspring. In our study, a supplement about the neurodevelopmental toxicity of pyridaben was conducted by using constructed NE-4C stem cells models. The results showed that pyridaben inhibited the viability and proliferation capacity of neural stem cells with an IC<sub>50</sub> value of 0.58 μM. After treatment with pyridaben for 24 h, the cell cycle of NE-4C cells was significantly increased in the S phase but decreased in the G2 phase, and its apoptosis had a significant increase in the total percentage of early apoptotic cells. Moreover, we found that pyridaben could change different neurons and glial cell markers such as Dnmt3b, Kmt1a and Kdm6a. Taken together, our study gives a comprehensive evaluation of the neurodevelopmental toxicity of pyridaben by using TRAEC strategy and highlights the necessity of enhancing the risk management measures for pyridaben.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"13 ","pages":"Article 100135"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comprehensive review on solar photovoltaics: Navigating generational shifts, innovations, and sustainability 对太阳能光伏发电的全面回顾:导航代际转变,创新和可持续性
Sustainable Horizons Pub Date : 2025-03-01 DOI: 10.1016/j.horiz.2025.100137
Ayman Mdallal , Ahmad Yasin , Montaser Mahmoud , Mohammad Ali Abdelkareem , Abdul Hai Alami , Abdul Ghani Olabi
{"title":"A comprehensive review on solar photovoltaics: Navigating generational shifts, innovations, and sustainability","authors":"Ayman Mdallal ,&nbsp;Ahmad Yasin ,&nbsp;Montaser Mahmoud ,&nbsp;Mohammad Ali Abdelkareem ,&nbsp;Abdul Hai Alami ,&nbsp;Abdul Ghani Olabi","doi":"10.1016/j.horiz.2025.100137","DOIUrl":"10.1016/j.horiz.2025.100137","url":null,"abstract":"<div><div>The consumption of fossil fuels presents a combined issue of environmental degradation and depletion of the current limited resources. In this context, solar photovoltaic (PV) technology provides a fundamental component in the global shift towards addressing climate change, reducing harmful emissions, and supporting sustainable energy alternatives. In order to recognize the growth of this technology, this study conducts an investigation and exploration, covering recent improvements in solar PV. The paper provides a comprehensive overview for researchers seeking an up-to-date summary of the current status of this technology. Perovskite/Silicon and III-V/Silicon tandem cells currently possess the highest efficiency, with a record-breaking achievement of 34.6 % and 36.1 % in recent research. Furthermore, both Perovskite and tandem cells exhibit the most reasonable energy payback time (EPBT) and levelized cost of electricity (LCOE) at the laboratory scale in comparison to conventional solar cells. Perovskite/Perovskite tandem cells showed the lowest LCOE and EPBT among all other types of cells by $0.042/kWh and 0.2 to 0.4 years, respectively. The integration of bifacial and tracking systems has the potential to enhance productivity by approximately 30 %, and 20 to 57 %, respectively, depending on the tracking technology and study location. Nevertheless, the use of materials like Pb, Sn, Cd, and Te requires careful management due to their potential harmful effect on human health, especially during recycling, decommissioning, and manufacturing processes. Although third-generation and tandem solar cells show promise, they necessitate additional research to tackle issues such as costly manufacturing, scalability, stability, and durability.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"13 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-Eyed Seeing and the Synoptic Transfer Framework: Braiding holistic and scientific ways of living in Education for Sustainable Development 双眼观察与概括性迁移框架:在可持续发展教育中编织整体科学的生活方式
Sustainable Horizons Pub Date : 2025-03-01 DOI: 10.1016/j.horiz.2025.100134
Albert Zeyer , Glen Aikenhead
{"title":"Two-Eyed Seeing and the Synoptic Transfer Framework: Braiding holistic and scientific ways of living in Education for Sustainable Development","authors":"Albert Zeyer ,&nbsp;Glen Aikenhead","doi":"10.1016/j.horiz.2025.100134","DOIUrl":"10.1016/j.horiz.2025.100134","url":null,"abstract":"<div><div>This paper explores the integration of holistic knowledge systems with Western scientific perspectives through the concept of Two-Eyed Seeing (TES). By examining philosophical underpinnings of TES, particularly through the lens of Wilfrid Sellars' synoptic view, the paper highlights the potential for creating a more comprehensive understanding through the concept of Two-Eyed Seeing with epistemic insight. The Synoptic Transfer Framework (STF) as a Western educational variant of TES inspired by Sellars’ philosophy is introduced. TES, as conceptualized by Indigenous Elders, and the Western STF both advocate for a multi-perspective approach to the world, where the scientific and holistic images complement rather than compete with each other. The paper also addresses the chances and challenges of applying TES in educational contexts, particularly in Education for Sustainable Development (ESD), identifying common pitfalls such as the naturalistic and the moralistic fallacy. Furthermore, it argues for the importance of educational frameworks that incorporate TES to foster culturally responsive and inclusive science curricula. The study underscores the relevance of TES and STF in addressing sustainability issues, emphasizing the sentient persons approach and the normative perspective in both. The braid metaphor is used to illustrate the continuous, dynamic interaction between perspectives rooted in factual evidence and societal values to ensure a sustainable future for humanity.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"14 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changing climate alters the time people spend outdoors 气候变化改变了人们户外活动的时间
Sustainable Horizons Pub Date : 2025-03-01 DOI: 10.1016/j.horiz.2025.100133
Ye Wang , Yumeng Liu , Shuchang Liu , Beibei Wang , Xiaoli Duan , Shuxiao Wang , Bin Zhao
{"title":"Changing climate alters the time people spend outdoors","authors":"Ye Wang ,&nbsp;Yumeng Liu ,&nbsp;Shuchang Liu ,&nbsp;Beibei Wang ,&nbsp;Xiaoli Duan ,&nbsp;Shuxiao Wang ,&nbsp;Bin Zhao","doi":"10.1016/j.horiz.2025.100133","DOIUrl":"10.1016/j.horiz.2025.100133","url":null,"abstract":"<div><div>The time people spend outdoors is crucial for public health from both physical and mental aspects, as well as the energy consumption for indoor activities. The impact of climate change on the outdoor time remains unexplored. Here, we employed a two-stage analytical approach to estimate the baseline and future outdoor activity duration among the Chinese population. Using a Bayesian linear multilevel model, we analyzed the relationship between environmental and population-related variables and the time spent outdoors, based on Chinese Environmental Exposure-Related Human Activity Patterns Survey of 160,926 participants from 31 Chinese provinces. We then projected changes in time spent outdoors in 2050 under two climate scenarios: SSP126 (sustainable development) and SSP585 (fossil fuel-driven). Our analysis revealed that the annual cumulative count of time spent outdoors (CTO) is expected to decrease by 52 (95 % Bayesian credible interval: 3–101) hours (SSP126) to 53 (3–104) hours (SSP585) by 2050 across mainland China, with the most significant reductions occurring in summer. Among all population subgroups, elders, females, and rural population are most affected by changing climate. The daily temperature range and urbanicity act as main drivers contribute to the changes in CTO. The decrease in CTO will lead to increased indoor activity, which may cause higher energy consumption and greater health risk. Our findings highlight the need for adaptive measures to mitigate the adverse effects of climate change and emphasize the importance of promoting the sustainable development.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"13 ","pages":"Article 100133"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of organic fertilizer substitution strategies on nitrogen loss from crop production in Taihu Lake Basin: A case study of Jinting Town, Suzhou, China 有机肥替代策略对太湖流域作物氮素流失的影响——以苏州金亭镇为例
Sustainable Horizons Pub Date : 2025-02-20 DOI: 10.1016/j.horiz.2025.100132
Yingliang Yu , Yue Wang , Bei Yang , Linzhang Yang , Lihong Xue , Xuemei Han , Leifang Huang
{"title":"Effects of organic fertilizer substitution strategies on nitrogen loss from crop production in Taihu Lake Basin: A case study of Jinting Town, Suzhou, China","authors":"Yingliang Yu ,&nbsp;Yue Wang ,&nbsp;Bei Yang ,&nbsp;Linzhang Yang ,&nbsp;Lihong Xue ,&nbsp;Xuemei Han ,&nbsp;Leifang Huang","doi":"10.1016/j.horiz.2025.100132","DOIUrl":"10.1016/j.horiz.2025.100132","url":null,"abstract":"<div><div>Due to the large amount of nitrogen loss from crop production and the difficulty of controlling it, since 2015, different levels of Chinese government implemented many regulations i.e. fertilizer application strategy adjustments to reduce nitrogen loss. However, there lacks an exploration of the policy-driven changes in organic fertilizer substitution varying in nitrogen loss risk. Therefore, multiple surveys of fertilizer application strategy with diverse farming scale were carried out in Jinting Town of Suzhou City from 2015 to 2023. Based on the data of nitrogen input intensity and organic fertilizer substitution rate, the policies’ responses resulting in nitrogen loss reduction were studied and analyzed in each crop types with different management models. The results showed the national “Two Actions” plans (based on 2020′s data) and Jinting's organic fertilizer subsidy policies (based on 2023′s data) reduced the nitrogen loss per unit weight crop yield by 14 % and 39 % respectively, though the nitrogen loss per unit area didn't pose a major change. Compared to smallholders’ farms, scale farms showed greater environmental and economic advantages in lowering nitrogen loss risk and applying organic fertilizer. We concluded that the appropriate organic fertilizer substitution rate for each crop type is crucial to further reducing nitrogen loss and also guarantees crop yield, and scale farms should be the mainly entities of implementation of optimization fertilizer policy to achieve sustainable agricultural development in China.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"13 ","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring indoor PM2.5 pollution characteristics in Xi'an city and its health implications using interpretable machine learning 利用可解释机器学习研究西安市室内PM2.5污染特征及其对健康的影响
Sustainable Horizons Pub Date : 2025-02-14 DOI: 10.1016/j.horiz.2025.100131
Zezhi Peng , Jiaer Yang , Jian Sun , Jing Duan , Zhiwen Chen , Xinyi Niu , Tafeng Hu , Yu Huang , Hongmei Xu , Junji Cao , Zhenxing Shen
{"title":"Exploring indoor PM2.5 pollution characteristics in Xi'an city and its health implications using interpretable machine learning","authors":"Zezhi Peng ,&nbsp;Jiaer Yang ,&nbsp;Jian Sun ,&nbsp;Jing Duan ,&nbsp;Zhiwen Chen ,&nbsp;Xinyi Niu ,&nbsp;Tafeng Hu ,&nbsp;Yu Huang ,&nbsp;Hongmei Xu ,&nbsp;Junji Cao ,&nbsp;Zhenxing Shen","doi":"10.1016/j.horiz.2025.100131","DOIUrl":"10.1016/j.horiz.2025.100131","url":null,"abstract":"<div><div>Indoor ambient fine particulate matter (PM<sub>2.5</sub>) exposure is harmful to human health, but its sources and health effects are not fully understood. This study conducted a 2-week monitoring campaign in Xi'an, China, assessing levels of indoor and outdoor PM<sub>2.5</sub> pollution, fractional exhaled nitric oxide, and cytokines (interleukin-6 (IL-6), tumor necrosis factor-α, and 8‑hydroxy-2′-deoxyguanosine) in 12 households. The results revealed an average indoor PM<sub>2.5</sub> concentration of 71.18 μg/m<sup>3</sup>, exceeding WHO (25 μg/m<sup>3</sup>) and China indoor air quality standards (50 μg/m<sup>3</sup>). A random forest regression model effectively predicted indoor PM<sub>2.5</sub> levels (R<sup>2</sup> = 0.84), while SHapley Additive exPlanations indicated that outdoor PM<sub>2.5</sub> was the primary contributor to indoor concentrations, contributing 38 %. Although average FeNO levels (14.68 ppb) did not exceed healthy thresholds or correlate with overall PM<sub>2.5</sub> concentrations, FeNO levels were notably more sensitive to PM<sub>2.5</sub> in children than in adults. Conversely, IL-6 levels were correlated strongly with indoor PM<sub>2.5</sub> concentrations (0.67, <em>p</em> &lt; 0.05) and were particularly responsive to smoking (0.72, <em>p</em> &lt; 0.05) and outdoor PM<sub>2.5</sub> (0.62, <em>p</em> &lt; 0.05). This study highlights the critical effect of indoor PM<sub>2.5</sub> exposure on health and emphasizes the complex sources and implications of indoor pollution in Xi'an, providing a scientific basis for improving indoor air quality.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"13 ","pages":"Article 100131"},"PeriodicalIF":0.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143402955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of low-sulfur marine fuel policy on air pollution in global coastal cities 低硫船用燃料政策对全球沿海城市空气污染的影响
Sustainable Horizons Pub Date : 2025-01-24 DOI: 10.1016/j.horiz.2024.100130
Jia Shi , Jihong Chen , Zheng Wan , Shaorui Zhou , Ye Jun , Yaqing Shu
{"title":"The impact of low-sulfur marine fuel policy on air pollution in global coastal cities","authors":"Jia Shi ,&nbsp;Jihong Chen ,&nbsp;Zheng Wan ,&nbsp;Shaorui Zhou ,&nbsp;Ye Jun ,&nbsp;Yaqing Shu","doi":"10.1016/j.horiz.2024.100130","DOIUrl":"10.1016/j.horiz.2024.100130","url":null,"abstract":"<div><div>Shipping emissions significantly contribute to the fallout of air pollutants in many coastal cities. Among these emissions, sulfur dioxide (SO<sub>2</sub>) is a major concern because it not only causes acid rain and photochemical smog that seriously damages human health but also damages sensitive ecosystems around the world. The United Nations and many local governments have established regulatory schemes to reduce SO<sub>2</sub> by setting global regulations and emission control areas (ECAs) that would require the use of much cleaner marine fuel with lower sulfur content or equivalent SO<sub>2</sub> scrubber devices. By combining remote sensing with spatial econometric models, we find that SO<sub>2</sub> decreases with implementation of regulations on sulfur limits varied across the study areas. The emission control areas in North America and China can reduce the average sulfur dioxide concentration in coastal cities by about 3–5 %, but in the Baltic and North Seas, ECAs did not show a significant impact at the spatial average level. While the overall spatially averaged SO<sub>2</sub> changes were relatively small, port cities and offshore waters with frequent shipping activities experienced significantly larger reductions, ranging from 10 % to 28 %. In addition, setting a general cap on sulfur content may be a better way to curb air pollution in coastal cities. The Mediterranean region and China experienced more notable reductions in SO<sub>2</sub> concentrations, namely 6.4 % and 3.8 %, respectively, following the adoption of the global regulation.</div></div>","PeriodicalId":101199,"journal":{"name":"Sustainable Horizons","volume":"14 ","pages":"Article 100130"},"PeriodicalIF":0.0,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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