Journal of Environmental Sciences-china最新文献

Roles of naturally occurring biogenic iron-manganese oxides (BFMO) in PMS-based environmental remediation: A complete electron transfer pathway 天然存在的生物源铁锰氧化物（BFMO）在pms环境修复中的作用：一个完整的电子转移途径

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-03-01 DOI: 10.1016/j.jes.2024.11.011

Feng Hu , Lite Meng , Mei Wang , Yunhui Zhang , Zuxin Xu

{"title":"Roles of naturally occurring biogenic iron-manganese oxides (BFMO) in PMS-based environmental remediation: A complete electron transfer pathway","authors":"Feng Hu , Lite Meng , Mei Wang , Yunhui Zhang , Zuxin Xu","doi":"10.1016/j.jes.2024.11.011","DOIUrl":"10.1016/j.jes.2024.11.011","url":null,"abstract":"<div><div>Bisphenol A (BPA) is a pervasive endocrine disruptor that enters the environment through anthropogenic activities, posing significant risks to ecosystems and human health. Advanced oxidation processes (AOPs) are promising methods for the removal of organic microcontaminants in the environment. Biogenic manganese oxides (BMO) are reported as catalysts due to their transition metal nature, and are also readily generated by manganese-oxidizing microorganisms in the natural environment, and therefore their roles and effects in AOPs-based environmental remediation should be investigated. However, biogenic iron-manganese oxides (BFMO) are actually generated rather than BMO due to the coexistence of ferrous ions which can be oxidized to iron oxides. Therefore, this study produced BFMO originating from a highly efficient manganese-oxidizing fungus <em>Cladosporium</em> sp. XM01 and chose peroxymonosulfate (PMS) as a typical oxidant for the degradation of bisphenol A (BPA), a model organic micropollutant. Characterization results indicate that the formed BFMO was amorphous with a low crystallinity. The BFMO/PMS system achieved a high degradation performance that 85 % BPA was rapidly degraded within 60 min, and therefore the contribution of BFMO cannot be ignored during PMS-based environmental remediation. Different from the findings of previous studies (mostly radicals and singlet oxygen), the degradation mechanism was first proven as a 100 % electron-transfer pathway mediated by high-valence Mn under acidic conditions provided by PMS. The findings of this study provide new insights into the degradation mechanisms of pollutants using biogenic metal oxides in PMS activation and the contribution of their coexistence in AOPs-based environmental remediation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 795-805"},"PeriodicalIF":5.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Assessment of photocatalytic activity of novel PrBiFeO3 perovskite composites in visible-light photocatalytic decomposition reaction 新型 PrBiFeO3 包晶石复合材料在可见光光催化分解反应中的光催化活性评估

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-26 DOI: 10.1016/j.jes.2025.02.033

Sang-Chul Jung, Kyong-Hwan Chung

{"title":"Assessment of photocatalytic activity of novel PrBiFeO3 perovskite composites in visible-light photocatalytic decomposition reaction","authors":"Sang-Chul Jung, Kyong-Hwan Chung","doi":"10.1016/j.jes.2025.02.033","DOIUrl":"10.1016/j.jes.2025.02.033","url":null,"abstract":"<div><div>In this study, the visible-light photocatalytic reaction properties of perovskite catalysts was investigated with excellent visible-light sensitivity. Titanate-based and ferrite-based perovskites were introduced as light-responsive catalysts. A novel ferrite-based perovskite composite, PrBiFeO<sub>3</sub>, was synthesized, which demonstrated significantly enhanced light absorption under both visible light and UV illumination. The composite was prepared according to a combined sol-gel and solvothermal method. The newly synthesized PrBiFeO<sub>3</sub> exhibited excellent absorption capabilities for both UV and visible light, with a band gap energy of about 2.0 eV. These perovskites showed photocatalytic activity in the decomposition of methylene blue and formaldehyde under visible light LED lamp illumination. Notably, the ferrite-based perovskites, including PrFeO<sub>3</sub>, displayed better photocatalytic activity under visible light compared to the titanate-based perovskites. The novel PrBiFeO<sub>3</sub> composite also produced hydrogen and oxygen through water splitting under artificial sunlight and liquid plasma discharging. The amount of hydrogen produced by photocatalytic water splitting in PrBiFeO<sub>3</sub> under liquid plasma irradiation was approximately 50 times higher than that produced under artificial sunlight irradiation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 549-561"},"PeriodicalIF":5.9,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Environmental catalytic city: New engine for air pollution control 环境催化城市：大气污染治理的新引擎

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-25 DOI: 10.1016/j.jes.2025.02.019

Jinzhu Ma , Biwu Chu , Xiaotong Li , Huihui Wang , Qingxin Ma , Guangzhi He , Qian Liu , Shuxiao Wang , Kebin He , Jincai Zhao , Hong He

{"title":"Environmental catalytic city: New engine for air pollution control","authors":"Jinzhu Ma , Biwu Chu , Xiaotong Li , Huihui Wang , Qingxin Ma , Guangzhi He , Qian Liu , Shuxiao Wang , Kebin He , Jincai Zhao , Hong He","doi":"10.1016/j.jes.2025.02.019","DOIUrl":"10.1016/j.jes.2025.02.019","url":null,"abstract":"<div><div>Air pollution is a major challenge to the improvement of urban environmental quality. The control of air pollution still faces severe challenges, especially in developing countries, such as ozone pollution control. Ozone is a typical secondary air pollutant, and its formation chemistry from its precursors (NO<em><sub>x</sub></em> and volatile organic compounds) is highly nonlinear, which caused the emission reduction of its precursors is not always effective and therefore new assisted approaches to control of ozone pollution are needed. Photocatalysis and ambient catalysis technology are expected to be applied in open atmosphere as a new booster to the direct purification of air pollutants in emission sources. In this perspective, we summarize the current knowledge about the photocatalysis and ambient catalysis technology for the removal of air pollutants under natural photothermal conditions. Based on these technologies, we propose the concept of “Environmental Catalytic City”, which refers to the spontaneous purification of low concentration urban air pollutants in the atmosphere by catalytic materials coating on the artificial surfaces, such as building surfaces in the city. In this way, the urban city with self-purification function can remove air pollution without additional energy consumption. The further improvement, development, and application of the “Environmental Catalytic City” is also discussed.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 576-583"},"PeriodicalIF":5.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Bentonite supported cobalt catalyst prepared by blending method for the catalytic oxidation of desulfurization by-product sulfite: Catalytic performance and mechanism 用共混法制备膨润土负载钴催化剂催化氧化脱硫副产物亚硫酸盐：催化性能及机理

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-24 DOI: 10.1016/j.jes.2025.02.032

Fanbo Zeng , Jing Zhu , Feng Liu , Guoyu Zhang , Weirun Li , Wenye Li , Zhiwei Shang , Hong You , Shuxiao Wang , Zhipeng Li

{"title":"Bentonite supported cobalt catalyst prepared by blending method for the catalytic oxidation of desulfurization by-product sulfite: Catalytic performance and mechanism","authors":"Fanbo Zeng , Jing Zhu , Feng Liu , Guoyu Zhang , Weirun Li , Wenye Li , Zhiwei Shang , Hong You , Shuxiao Wang , Zhipeng Li","doi":"10.1016/j.jes.2025.02.032","DOIUrl":"10.1016/j.jes.2025.02.032","url":null,"abstract":"<div><div>Wet flue gas desulfurization (WFGD) could effectively reduce sulfur dioxide emission. However, magnesium sulfite (MgSO<sub>3</sub>), a by-product of desulfurization, was easy to result in secondary pollution. In this study, the solid catalyst Co-Bent (bentonite supported cobalt) was prepared by blending method for MgSO<sub>3</sub> oxidation with bentonite as the carrier and cobalt as the active component. At the calcination temperature of 550 °C and the Co loading level of 3 wt.%, the catalyst showed excellent catalytic performance for the oxidation of high concentration MgSO<sub>3</sub> slurry, and the oxidation rate of MgSO<sub>3</sub> was 0.13 mol/(L·h). The research indicated that the active component was uniformly distributed within porous structure of the catalyst as Co<sub>3</sub>O<sub>4</sub>, which facilitated the oxidation of SO<sub>3</sub><sup>2−</sup> catalyzed by Co<sub>3</sub>O<sub>4</sub>. Kinetic researches indicated the oxidation rate of MgSO<sub>3</sub> was influenced by the catalyst dosage, the reaction temperature, the solution pH, the airflow rate, and the SO<sub>3</sub><sup>2−</sup> concentration. Additionally, after recycling experiments, the regenerated catalyst retained its high catalytic performance for the MgSO<sub>3</sub> oxidation. The reaction mechanism for the catalytic oxidation of MgSO<sub>3</sub> by Co-Bent catalyst was also proposed. The generation of active free radicals (OH·, SO<sub>4</sub><sup>−</sup>·, SO<sub>3</sub><sup>−</sup>·, SO<sub>5</sub><sup>−</sup>·) accelerated the MgSO<sub>3</sub> oxidation. These results provide theoretical support for the treatment of MgSO<sub>3</sub> and the development of durable catalyst.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 584-595"},"PeriodicalIF":5.9,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Advancing anti-freezing hydrogel electrolyte based on deep eutectic solvent for wide temperature range aqueous zinc-ion battery 基于深度共晶溶剂的宽温度范围锌离子电池抗冻水凝胶电解质的研制

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-24 DOI: 10.1016/j.jes.2025.02.022

Yuqi Jiang , Yifan Liao , Jiayi Chen , Kun Ma

{"title":"Advancing anti-freezing hydrogel electrolyte based on deep eutectic solvent for wide temperature range aqueous zinc-ion battery","authors":"Yuqi Jiang , Yifan Liao , Jiayi Chen , Kun Ma","doi":"10.1016/j.jes.2025.02.022","DOIUrl":"10.1016/j.jes.2025.02.022","url":null,"abstract":"<div><div>Hydrogels based on Deep Eutectic Solvents (DES) demonstrate remarkable anti-freezing, resilience, and toughness, presenting a promising avenue to the operation of aqueous zinc-ion batteries under extreme conditions. A gel electrolyte capable of operating over a wide temperature range is developed based on a DES comprising 1 mol/kg (m) Zn(ClO<sub>4</sub>)<sub>2</sub> + 3.5 m Mg(ClO<sub>4</sub>)<sub>2</sub>. Spectral characterization confirms the synergistic influence of both anions and cations on the freezing point of the DES. With four hydrogen bond (HB) acceptors, Mg<sup>2+</sup> exhibits strong electrostatic attraction towards the O atoms of H<sub>2</sub>O, while ClO<sub>4</sub><sup>−</sup> forms numerous HBs with H<sub>2</sub>O molecules. This dual interaction allows for precise adjustment of the chemical environment around the H and O atoms of H<sub>2</sub>O, resulting in an exceptionally low freezing point of -116.92 °C for the DES. The gel electrolyte derived from this DES demonstrates an impressive ionic conductivity of 0.285 mS/cm at -70 °C. Leveraging its excellent low-temperature performance and compatibility with a zinc anode, the flexible Zn-Mn battery constructed with this electrolyte exhibits robust electrochemical performance at low temperatures. Specifically, at -70 °C, it achieves a high specific capacity of 76.83 mAh/g, displays excellent rate capability, and maintains stable cycling performance. Moreover, the Zn-Mn battery operates reliably across a broad temperature range from -70 to 80 °C. This study presents innovative insights for advancing Zn-Mn batteries capable of efficient operation across diverse environmental conditions, thereby opening new avenues for their development.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 596-605"},"PeriodicalIF":5.9,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Development of Palygorskite-CaIn2S4 composite for rapid Cr(VI) reduction under visible light 开发用于在可见光下快速还原六价铬的鳞片石-CaIn2S4 复合材料

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-22 DOI: 10.1016/j.jes.2025.02.021

Yuanyuan Wang, Shijun Jia, Shiqiang Ding, Wenyan Zhang, Rui Shu, Yingfei Hu

{"title":"Development of Palygorskite-CaIn2S4 composite for rapid Cr(VI) reduction under visible light","authors":"Yuanyuan Wang, Shijun Jia, Shiqiang Ding, Wenyan Zhang, Rui Shu, Yingfei Hu","doi":"10.1016/j.jes.2025.02.021","DOIUrl":"10.1016/j.jes.2025.02.021","url":null,"abstract":"<div><div>Using natural minerals to eliminate harmful Cr(VI) under sustainable sunshine has significant potential. Herein, Palygorskite nanorods were utilized as carriers for the in-situ synthesis of CaIn<sub>2</sub>S<sub>4</sub> photocatalysts through a simple one-pot thermal process, enabling the efficient reduction of Cr(VI). With a Palygorskite to CaIn<sub>2</sub>S<sub>4</sub> mass ratio of 5 %, the conversion rate of Cr(VI) reached 98 % after 60 min of visible-light exposure, with a remarkable reaction rate of 0.0633 min<sup>−1</sup>. The effective integration of CaIn<sub>2</sub>S<sub>4</sub> with Palygorskite led to a more uniform dispersion of CaIn<sub>2</sub>S<sub>4</sub>, exposing more reactive sites. Moreover, the establishment of a heterojunction between CaIn<sub>2</sub>S<sub>4</sub> and Palygorskite facilitated the transport of photogenerated electrons from CaIn<sub>2</sub>S<sub>4</sub>, enhancing the efficiency of charge separation. These factors contribute to the improved photocatalytic performance. Additionally, the developed composite photocatalysts demonstrated excellent stability under light exposure and could be reused efficiently. Trapping tests on active substances revealed that <em>e</em><sup>−</sup> played key roles in the Cr(VI) reduction. This research suggests the potential of using natural minerals to fabricate composite photocatalysts capable of effectively removing pollutants from the environment using solar energy.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 562-575"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

In situ engineering 2D/3D CuCo2S4@Co3O4 heterojunction for sensing and photocatalytic degradation of diclofenac sodium in environmental water 环境水中双氯芬酸钠传感和光催化降解的原位工程2D/3D CuCo2S4@Co3O4异质结

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-22 DOI: 10.1016/j.jes.2025.02.020

Chunmei Chen , Yunjie Yang , Qiong Wang , Hui Li , Chun Chang

{"title":"In situ engineering 2D/3D CuCo2S4@Co3O4 heterojunction for sensing and photocatalytic degradation of diclofenac sodium in environmental water","authors":"Chunmei Chen , Yunjie Yang , Qiong Wang , Hui Li , Chun Chang","doi":"10.1016/j.jes.2025.02.020","DOIUrl":"10.1016/j.jes.2025.02.020","url":null,"abstract":"<div><div>Accurate determination and rapid degradation of organic pollutants are essential works in environmental improvement. Herein, the CuCo<sub>2</sub>S<sub>4</sub>@Co<sub>3</sub>O<sub>4</sub> heterojunction with fascinating 2D-on-3D hierarchical nanoflowers architecture and highly distributed interface sites were successfully synthesized by CuCo-LDH topological transformation combine with in situ exterior sulfurization strategy. The 2D-on-3D nanoflowers architecture could improve light harvesting ability, provide large surface area, open channels and abundant edge sites. In particular, the intensive M-O-S-M heterojunction interface not only promote the photoexcited charge shuttling but provide abundant interface sites to enhance catalytic activity. As expected, the photocatalytic degradation rate of diclofenac sodium (DCF) on CuCo<sub>2</sub>S<sub>4</sub>@Co<sub>3</sub>O<sub>4</sub> was approximately 100% within 30 min under 300 W mercury lamp, which was 1.28 times and 1.45 times higher than that of CuCo-LDH and CuCo<sub>2</sub>O<sub>4</sub>. The degradation rate for real samples were more than 80%, the mineralization rate was 90%, and the biological toxicity of degradation products decreased significantly. Furthermore, a novel photoelectrochemistry (PEC) sensor with CuCo<sub>2</sub>S<sub>4</sub>@Co<sub>3</sub>O<sub>4</sub> as a photoanode was successfully constructed for directly sensing DCF, showing a wide linear range and satisfactory detection limit. The results indicate that the CuCo<sub>2</sub>S<sub>4</sub>@Co<sub>3</sub>O<sub>4</sub> possess dual-functional peculiarity, hold vast potential for sensing and degradation environmental pollutants in wastewater.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 606-618"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Effectiveness of various chemical leaching systems in the remediation of chromium-contaminated soil and their impact on chromium speciation 不同化学淋滤系统对铬污染土壤的修复效果及其对铬形态的影响

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-21 DOI: 10.1016/j.jes.2025.02.012

Yuxiao Jiang , Chao Hu , Aoyu Zhou , Huiyang Qiu , Benyi Cao , Jian Xu

{"title":"Effectiveness of various chemical leaching systems in the remediation of chromium-contaminated soil and their impact on chromium speciation","authors":"Yuxiao Jiang , Chao Hu , Aoyu Zhou , Huiyang Qiu , Benyi Cao , Jian Xu","doi":"10.1016/j.jes.2025.02.012","DOIUrl":"10.1016/j.jes.2025.02.012","url":null,"abstract":"<div><div>Chemical leaching techniques have been proven effective in removing heavy metal contaminants from soil using various leaching agents. Previous research has shown that both single-agent and composite leaching systems have been applied for the remediation of chromium-contaminated soils, with varying degrees of success depending on soil type and contaminant form. However, the removal rate of total chromium (Cr) and hexavalent chromium (Cr(VI)) often fluctuates based on the chemical composition of the leaching agents, as well as the soil's physicochemical properties, such as pH and Cr speciation stability. Therefore, this study investigates the effectiveness of 20 composite leaching systems, including deionized water, lime water, calcium chloride, sodium carbonate, and sodium phosphate, through soil column leaching tests. The aim was to evaluate their impact on soil pH, total Cr, and Cr(VI) removal, and to examine the transformation of various Cr species during the leaching process. Results reveal that lime water and sodium phosphate were particularly effective in stabilizing Cr(VI) and neutralizing soil pH, while total Cr removal amount ranged from 197.4 mg/kg to 1671.6 mg/kg and Cr(VI) removal amount ranged from 113.2 mg/kg to 316.8 mg/kg. We also find that using 0.2 mol/L citric acid, 0.1 mol/L hydrochloric acid, and 1.2 mL/g lime solution adjusted soil pH to 7.37, with average removal efficiencies of 34.6 %. for total Cr and 72.7 % for Cr(VI). Overall, our results suggest that the combined use of lime water and sodium phosphate is an effective strategy for remediating chromium-contaminated soil, particularly for stabilizing unleached Cr and adjusting soil pH.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 77-89"},"PeriodicalIF":5.9,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Ship emissions and reduction potential under domestic policies and international cooperation: A case study in Hainan, China 国内政策和国际合作下的船舶减排潜力：以中国海南为例

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-12 DOI: 10.1016/j.jes.2025.02.006

Weiwei Zhang , Wen Yi , Tingkun He , Xin Peng , Qiao Xing , Xiaochen Wu , Zhaohui Yang , Rongfu Xie , Aidan Xian , Huan Liu , Jiming Hao

{"title":"Ship emissions and reduction potential under domestic policies and international cooperation: A case study in Hainan, China","authors":"Weiwei Zhang , Wen Yi , Tingkun He , Xin Peng , Qiao Xing , Xiaochen Wu , Zhaohui Yang , Rongfu Xie , Aidan Xian , Huan Liu , Jiming Hao","doi":"10.1016/j.jes.2025.02.006","DOIUrl":"10.1016/j.jes.2025.02.006","url":null,"abstract":"<div><div>Ship emissions contribute considerably to air pollution and are expected to decline under domestic policies and international cooperation such as green shipping corridors (GSCs). However, evaluation of the emission reduction potential by the Domestic Emission Control Area (DECA) policy and GSC cooperation is still lacking. Here, a series of multi-year high spatiotemporal ship emission inventories around Hainan, a representative island province of China, were developed with the state-of-the-art Shipping Emission Inventory Model. The improved origin-destination identification algorithm allowed emission allocation to port level. The emission reduction potential of the DECA policy and Hainan's joining GSC was analyzed. In 2022, ship emission intensity in waters 12 Nm from Hainan (Hainan-12Nm) were 6.4 %-7.4 % of that in waters 12 Nm from China. From 2019 to 2022, Hainan-12Nm emissions dropped by 66.7 %-77.8 % for SO<sub>2</sub> and PM<sub>2.5</sub>. Ideally, with adequate ultra-low-sulfur fuel, DECA can reduce SO<sub>2</sub> and PM<sub>2.5</sub> emissions by 16.6 % and 22.4 % yearly compared with no-DECA scenario. However, emission reduction would drop markedly if ultra-low-sulfur fuel is short in supply. Emissions of voyages passing through 200 Nm from Hainan took up 1 %-4 % of international shipping emissions, implying great emission reduction potential for Hainan's establishing GSCs, especially considering the flourishing South-South trade. This study provides a thorough assessment of the current state of shipping emissions around Hainan as well as offers excellent data support for Hainan to further advance the future upgrade of ship emission management policies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 253-266"},"PeriodicalIF":5.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

HCHO and NO2 profile characteristics under different synoptic patterns in Shanghai, China 上海不同天气型下的HCHO和NO2廓线特征

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-01-31 DOI: 10.1016/j.jes.2025.01.028

Yuhan Shi , Shanshan Wang , Sanbao Zhang , Jiaqi Liu , Dan Jin , Juntao Huo , Ruibin Xue , Jian Zhu , Chuanqi Gu , Bin Zhou

{"title":"HCHO and NO2 profile characteristics under different synoptic patterns in Shanghai, China","authors":"Yuhan Shi , Shanshan Wang , Sanbao Zhang , Jiaqi Liu , Dan Jin , Juntao Huo , Ruibin Xue , Jian Zhu , Chuanqi Gu , Bin Zhou","doi":"10.1016/j.jes.2025.01.028","DOIUrl":"10.1016/j.jes.2025.01.028","url":null,"abstract":"<div><div>Large-scale synoptic patterns significantly affect meteorological conditions and air pollution, yet their impacts on the vertical distribution of formaldehyde (HCHO) and nitrogen dioxide (NO<sub>2</sub>) have been little studied. From 1 June 2020 to 31 December 2021, Multi-AXis-Differential Optical Absorption Spectroscopy (MAX-DOAS) was used to observe NO<sub>2</sub> and HCHO vertical profiles in three typical environments of Shanghai, China, representing urban, suburban and coastal rural environments, respectively. HCHO level is the highest at suburban site, NO<sub>2</sub> is the highest at urban site. HCHO is mainly distributed between 0 and 1 km in altitude, and NO<sub>2</sub> is concentrated near the ground. The ratio of HCHO to NO<sub>2</sub> is used to identify ozone formation regimes, ozone sensitivities vary with environmental area, season and altitude. The principal component analysis in the T-mode approach and typhoon “In-Fa” case is applied to analyze the effects of synoptic patterns on HCHO and NO<sub>2</sub> vertically. HCHO concentrations show a pattern of low-pressure type > uniform-pressure type > high-pressure type at each altitude layer, while NO<sub>2</sub> concentrations follow the opposite pattern. Meteorological factors (especially radiation, temperature, relative humidity, cloud cover and wind), external transport and initial emissions contribute to the differences in HCHO and NO<sub>2</sub> levels across synoptic types. The “In-Fa” case shows how this special synoptic pattern elevates HCHO and NO<sub>2</sub> levels by improving meteorological conditions, boosting biogenic precursors and shifting air mass directions. This study assesses the impacts of synoptic patterns on HCHO and NO<sub>2</sub> vertical distribution in Shanghai, offering insights into understanding causes of pollution.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 821-834"},"PeriodicalIF":5.9,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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