Yufan Wang , Wenyi Zhang , Futao Fang , Zhihao Zhang , Zhuoyi Zhu , Liyang Yang , Wan-E Zhuang
{"title":"Deciphering the composition and degradation of dissolved organic matter in a large subtropical river using optical indices and high-resolution FT-ICR-MS","authors":"Yufan Wang , Wenyi Zhang , Futao Fang , Zhihao Zhang , Zhuoyi Zhu , Liyang Yang , Wan-E Zhuang","doi":"10.1016/j.jes.2024.12.005","DOIUrl":"10.1016/j.jes.2024.12.005","url":null,"abstract":"<div><div>Dissolved organic matter (DOM) is very important in aquatic environments, yet it is challenging to characterize DOM as a highly complex mixture of thousands of molecules, and the knowledge of the effects of different degradation processes on different molecules remains limited. This study examined the distribution and degradation of DOM in a large subtropical river using optical techniques and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). At the molecular level, DOM was mainly composed of CHO and lignin-like compounds, which was related to the dominance of forestland in the watershed and resulted in a low biological lability index (MLB<sub>L</sub>). The modified aromaticity index (AI<sub>mod</sub>), unsaturation degree (DBE), and humic content (HIX) decreased while MLB<sub>L</sub>, H/C, absorption spectral slope (<em>S</em><sub>275–295</sub>), and biological index (BIX) increased in the estuarine zone due to the increasing autochthonous contribution. Photo- and microbial degradation resulted in a similar decrease in the bulk dissolved organic carbon, while they showed opposite effects on the DOM composition. Photo-degradation removed all fluorescent components and decreased molecular weight, HIX, AI<sub>mod</sub>, DBE, %CHO, %lignin-like, %tannin-like, and %condensed aromatic-like compounds. In contrast, bio-degradation preferentially consumed lipid-like, protein-like, and carbohydrate-like compounds, with increases in %lignin-like, %tannin-like, %condensed aromatic-like compounds, and humic-like fluorescent components. Overall, the application of ultra-high resolution mass spectrometry provided valuable insights into the composition and behavior of DOM at the molecular level and revealed the contrasting effects of photo- and microbial degradation on different compounds. These results have implications for better understanding the composition and transformation of aquatic DOM.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 580-591"},"PeriodicalIF":5.9,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115856","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}
{"title":"Optimizing mealworm rearing conditions and gut microbiome function for enhanced plastics biodegradation","authors":"Hongqin Guo , Xin Zhao , Kai Yang , Li Cui","doi":"10.1016/j.jes.2024.12.004","DOIUrl":"10.1016/j.jes.2024.12.004","url":null,"abstract":"<div><div>Insects have become an efficient and eco-friendly bioreactor for plastics and even micro/nano-plastics biodegradation. However, the optimal conditions for rearing insects to maximize plastic biodegradation and the underlying mechanisms remain unclear, hindering its practical applications. We investigated the effects of multiple rearing factors on plastics degradation efficiency of <em>Tenebrio molitor</em> larvae, including larval instar, water addition frequency, plastic specific surface area and plastic types. The functional gut microbes and enzymes associated with the improved efficiency were further explored. Our findings revealed that adult larvae achieved the highest plastics degradation efficiency when receiving regular water additions without causing drowning of insects on hydrophobic plastics. Additionally, they effectively ingested foam plastics of polystyrene, polyethylene and polyurethane without prior comminution and densification. The biodegradation processes involving oxidation, cleavage and depolymerization of plastics were all demonstrated. Furthermore, foam plastic type-dependent functional microbes and enzymes that contributed to the efficient plastic degradation were identified. This work provides valuable insights into the practical applications of insects for sustainable plastics biodegradation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 417-429"},"PeriodicalIF":5.9,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070803","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}
Shengnan Li , Yucan Xi , Ke Wang , Nianhong Wan , Haiyan Liu , Shih-Hsin Ho
{"title":"Responses of antibiotic resistance genes and microbial community in the microalgae-bacteria system under sulfadiazine: Mechanisms and implications","authors":"Shengnan Li , Yucan Xi , Ke Wang , Nianhong Wan , Haiyan Liu , Shih-Hsin Ho","doi":"10.1016/j.jes.2024.12.003","DOIUrl":"10.1016/j.jes.2024.12.003","url":null,"abstract":"<div><div>Microalgae-bacteria system is an emerging alternative for sustainable wastewater treatment. Exploring the structure and diversity of microbial community in microalgae-bacteria system under sulfadiazine stress can contribute to the understanding of the sulfadiazine behavior in environments. Furthermore, as important carriers of antibiotic resistance genes (ARGs), microalgae can influence the profiles of ARGs either directly or indirectly through the secretion of metabolites. However, the effects of sulfadiazine on ARGs dissemination of microalgae-bacteria systems remain underreported. Herein, the impacts of sulfadiazine (1 mg/L) on the structural diversity and metabolic activity of microorganisms were examined in microalgae-bacteria systems. Results showed that microalgae-bacteria system could remove NH<sub>4</sub><sup>+</sup>-N better (about 72.3 %) than activated sludge system, and hydrolysis was the first step in sulfadiazine degradation. A high level of <em>intI1</em> (5.7 × 10<sup>4</sup> copies/mL) was detected in the initial media of the microalgae-bacteria system. Microalgae could hamper the rate of horizontal gene transfer activation. Compared with activated sludge system, the abundance of <em>sul</em> genes (<em>sul1, sul2, sul3</em>, and <em>sulA</em>) was significantly lowered after treating with microalgae-bacteria system. Additionally, the number of proteins and the sum of polysaccharides in the extracellular polymeric substances of the activated sludge system were lower than those of the microalgae-bacteria system. Microalgae can alter microbial communities. The genus <em>Rozellomycota</em> predominated all samples. Fungi with relatively high abundance increased in the microalgae-bacteria system, including Dipodascaceae<em>, Rhodotorula</em>, and <em>Geotrichum</em>. These results offer valuable insights into the application processes involving microalgae-bacteria system.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 443-456"},"PeriodicalIF":5.9,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072481","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}
Jianqi Liu , Jinpeng Du , Jingyi Wang , Shichao Han , Yulong Shan , Yan Zhang , Xuanhao Wu , Shan Gao , Yunbo Yu , Zhongbiao Wu , Wenpo Shan , Hong He
{"title":"Towards rational design of Cu-SSZ-13 catalysts with less N2O formation in NH3-SCR reaction: The effect of Brønsted acid sites","authors":"Jianqi Liu , Jinpeng Du , Jingyi Wang , Shichao Han , Yulong Shan , Yan Zhang , Xuanhao Wu , Shan Gao , Yunbo Yu , Zhongbiao Wu , Wenpo Shan , Hong He","doi":"10.1016/j.jes.2024.12.001","DOIUrl":"10.1016/j.jes.2024.12.001","url":null,"abstract":"<div><div>Ammonia Selective Catalytic Reduction (NHs-SCR) technology has been employed to eliminate NO<em><sub>x</sub></em> from diesel engine exhaust, with Cu-SSZ-13 serving as the commercial catalyst. The greenhouse gas N<sub>2</sub>O is produced as a byproduct when using Cu-SSZ-13 as the NH<sub>3</sub>-SCR catalyst. To achieve synergistic control of pollutants and greenhouse gases in diesel engine exhaust, rational design of Cu-SSZ-13 catalysts is required. In this study, the effect of Brønsted acid sites in Cu-SSZ-13 catalysts on the formation of N<sub>2</sub>O was investigated. Mild thermal treatment was innovatively employed to prepare Cu-SSZ-13 catalysts with different amounts of Brønsted acid sites. EPR, H<sub>2</sub>-TPR, NH<sub>3</sub>-TPD, NMR were utilized to determine that the Brønsted acid sites were modified while the Cu species remained unchanged. Thereby an accurate assessment of the influence of Brønsted acid sites on N<sub>2</sub>O formation could be achieved. Our results showed that Cu-SSZ-13 with more Brønsted acid sites produced less N<sub>2</sub>O during the NH<sub>3</sub>-SCR reaction. In the low-temperature region, the presence of framework acid sites facilitates the decomposition of the NH<sub>4</sub>NO<sub>3</sub> assisted by NO to form N<sub>2</sub> and H<sub>2</sub>O, reducing the formation of N<sub>2</sub>O. In the high-temperature region, the Brønsted acid sites promote the decomposition of NH<sub>2</sub>NO into N<sub>2</sub> and H<sub>2</sub>O. Meanwhile, the N<sub>2</sub>O-SCR reaction can also be promoted by Brønsted acid sites, thereby decreasing N<sub>2</sub>O emissions. This study suggests that in the future design and synthesis of Cu-SSZ-13 zeolites, attention should be paid to creating more Brønsted acid sites in Cu-SSZ-13 to reduce N<sub>2</sub>O emissions.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 546-557"},"PeriodicalIF":5.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115852","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}
Zhijin Zhang , Wentao Zhang , Huan Wang , Haotian Chen , Hong Wang , Yang Yu , Danjing Shen , Man Pi , Yang Wu , Ming Luo , Yanyan He , Shiyu Mao , Jiang Geng , Wei Li , Guangchun Wang , Changcheng Guo , Daqiang Yin , Xudong Yao
{"title":"Immunosuppressive role of benzo[a]pyrene exposure in prostate cancer progression","authors":"Zhijin Zhang , Wentao Zhang , Huan Wang , Haotian Chen , Hong Wang , Yang Yu , Danjing Shen , Man Pi , Yang Wu , Ming Luo , Yanyan He , Shiyu Mao , Jiang Geng , Wei Li , Guangchun Wang , Changcheng Guo , Daqiang Yin , Xudong Yao","doi":"10.1016/j.jes.2024.11.032","DOIUrl":"10.1016/j.jes.2024.11.032","url":null,"abstract":"<div><div>Epidemiological studies indicate that prostate cancer (PCa) is the second prevalent malignant tumor affecting men globally. Environmental pollution such as cigarette smoke is one of the important risk factors for the development of prostate cancer. However, as one of the main carcinogens in cigarette smoke, the role of benzo[a]pyrene (BaP) in prostate cancer is still unclear. The current study aimed to investgate the impacts of BaP exposure on the progression of PCa toward malignancy and the regulation of the immune microenvironment. We verified that BaP exposure can promote the proliferation, migration, and apoptosis of prostate cancer cells through <em>in vitro</em> experiments. We constructed a subcutaneous xenograft tumor model of BaP exposure mouse and found that can promote the proliferation of tumors <em>in vivo</em>. Organoids-driven by PCa patients showed higher growth rate under BaP exposure. Flow cytometric analysis demonstrated a remarkable decrease in CD4<sup>+</sup> T and CD8<sup>+</sup> T cell infiltration levels. Moreover, we identified four genes (<em>Mdm2, Ar, Foxo1, Crebbp</em>) were strongly associated with BaP exposure by combining mouse tumor RNA-seq and CTD database. Additionally, a nomogram integrating clinicopathological features was constructed to assess the prognosis of prostate cancer patients under BaP exposure. This study systematically proved that BaP exposure promotes malignant progression of PCa and suppresses the immune microenvironment, in which <em>Mdm2, Ar, Foxo1, Crebbp</em> may play a crucial role in inhibiting apoptosis. These findings offer novel insights into the mechanisms via which BaP exposure contributes to PCa development.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 185-199"},"PeriodicalIF":5.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610464","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}
Junmei Yu , Kai Qi , Xuelian Li , Lili Gao , Jiancheng Wang , Jian Zeng , Shixun Du
{"title":"Insights into zeolite imidazole frameworks (ZIFs) for CO2 capture and separation: A short review","authors":"Junmei Yu , Kai Qi , Xuelian Li , Lili Gao , Jiancheng Wang , Jian Zeng , Shixun Du","doi":"10.1016/j.jes.2024.12.002","DOIUrl":"10.1016/j.jes.2024.12.002","url":null,"abstract":"<div><div>Zeolitic imidazole frameworks (ZIFs) are a class of three-dimensional (3D) skeletal materials with zeolitic topology composed of metal ions and imidazolium ligands, which combine the advantages of zeolites and metal-organic frameworks. ZIFs are widely used for adsorption of carbon dioxide (CO<sub>2</sub>) from flue gas due to its excellent hydrophobicity, chemical stability, thermal stability and gas adsorption properties. This study focuses on the effects of structures of ZIFs on CO<sub>2</sub> capture and separation from the viewpoints of topologies, pore channels, ligand functional groups and composite structures. On this basis, the mechanisms of CO<sub>2</sub> adsorption and selective separation are reviewed, as well as the challenges such as hydrophobicity, thermal and chemical stability faced by ZIFs in practical applications.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 690-709"},"PeriodicalIF":5.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115846","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}
{"title":"Phosphorus recovery from aqueous solutions via phase separation using bioinspired coacervates","authors":"Xiaocui Fan , Bin Liu , Jie Xu , Hang Zhai","doi":"10.1016/j.jes.2024.11.033","DOIUrl":"10.1016/j.jes.2024.11.033","url":null,"abstract":"<div><div>Phosphorus (P) is crucial for crop growth. However, in waters, P is considered as contaminant due to its role in causing eutrophication and algae blooms. Therefore, recovering P from wastewater is essential for sustainable P management. This study investigated the removal of P from aqueous solutions using bioinspired poly(ethylenimine)-poly(acrylamide-co-acrylic acid) (PEI-PAMcoAA) coacervates. In detail, we investigated various parameters affecting P removal, including the ratio of PEI to PAMcoAA (ranging from 1:2 to 3:1, stoichiometry ratio of NH<sub>2</sub> to COOH), pH (5.0-8.0) of P-containing solutions, initial P concentration (0.05-5 mmol/L), and the addition of calcium (Ca, 0.1-5 mmol/L). We found that increasing the PEI:PAMcoAA ratio from 1:2 to 3:1 significantly enhanced P removal efficiency, increasing from 47.21 % to 95.44 %. Under neutral pH conditions without calcium (Ca), PEI-PAMcoAA coacervates demonstrated optimal P removal capabilities (achieving an efficiency of 77.96 %) through electrostatic adsorption. In contrast, the addition of Ca under alkaline conditions markedly improved P removal efficiency, increasing it from 64.16 % to 82.42 %. Detailed analyses of P within the coacervates indicated that Ca facilitates P precipitation and provides additional binding sites. These findings demonstrated that PEI-(Ca)-PAMcoAA coacervates show promise for efficiently removing P, particularly at low P concentrations. After the P-removal, the immobilized P can potentially be reused directly, as P able to be released from the reacted products. Therefore, the reacted coacervates could serve as a non-toxic fertilizer. Given its simplicity, high efficiency, and environmental friendliness, P removal based on bioinspired coacervates represents a low-hanging fruit in the pursuit of sustainable P management.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 391-403"},"PeriodicalIF":5.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068076","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}
Chaofan Gong , Xinghui Liu , Xiaoling Nie , Xinmiao Xu , Xinfeng Wang , Likun Xue , Yan Wang
{"title":"Characterization of atmospheric humic-like substances (HULIS) at a high elevation in North China: Abundance, molecular composition and optical properties","authors":"Chaofan Gong , Xinghui Liu , Xiaoling Nie , Xinmiao Xu , Xinfeng Wang , Likun Xue , Yan Wang","doi":"10.1016/j.jes.2024.11.028","DOIUrl":"10.1016/j.jes.2024.11.028","url":null,"abstract":"<div><div>The optical absorption of large molecular compounds HULIS (humic-like substances) can significantly impact the aerosol light absorption and radiative forcing, influencing cloud condensation nuclei formation and thus the climate and atmospheric environment. This study collected aerosol (PM<sub>2.5</sub>) samples from the summit of Mount Tai in North China to investigate the concentration, molecular composition, and optical properties of HULIS. The average concentration of HULIS in the PM<sub>2.5</sub> in this study was 1.26 ± 0.54 µg/m<sup>3</sup>, comprising for 56 % of the water-soluble organic carbon (WSOC), with levels lower than urban areas but higher than other mountainous regions. Mass spectrometry revealed that CHO and CHON components, with high aromaticity and phenolic groups, are major contributors to absorption and fluorescence. These results indicate that HULIS is mainly composed of lignin and proteins/amino sugars, derived from combustion and secondary formation, and possesses a high light absorption capacity (with MAE<sub>365</sub> (mass absorption efficiency) and AAE (Ångström exponent) indices of 0.62 m<sup>2</sup>/g and 4.99, respectively). Parallel factor analysis identified three fluorescence components of HULIS, with proportions of 60.8 % for less oxygen humic-like substances, 21.0 % for high oxygen humic-like substances, and 18.2 % for protein-like substances. Our study highlights the significance of the light-absorbing capacity and secondary formation of HULIS at Mount Tai, laying the groundwork for investigation into the climate effects, formation mechanisms, and sources of HULIS generation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 673-685"},"PeriodicalIF":5.9,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512164","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}
Xiangyu Liu , Xiangrui Du , Xiangzhi Zuo , Zeming Wang , Bozena Czech , Patryk Oleszczuk , Yanzheng Gao
{"title":"Using degrading endophytic bacteria to detoxify the phthalic acid esters in crops from contaminated soil","authors":"Xiangyu Liu , Xiangrui Du , Xiangzhi Zuo , Zeming Wang , Bozena Czech , Patryk Oleszczuk , Yanzheng Gao","doi":"10.1016/j.jes.2024.11.029","DOIUrl":"10.1016/j.jes.2024.11.029","url":null,"abstract":"<div><div>Phthalic acid esters (PAEs) are widely released into the environment due to industrial and agricultural activities. This poses significant risks, not only to crops grown on contaminated soil but also to humans. PAEs enter the human body through the food chain, causing potential health hazards. Endophytic bacteria have demonstrated a significant potential as effective bioremediation agents, with specialized mechanisms of PAEs degradation. Endophytic bacteria such as <em>Rhodococcus, Pseudomonas</em> and <em>Sphingomona</em> recognize root exudates, adhere to and penetrate root surfaces, and ultimately colonize crops. They form symbiotic relationships with crops, obtaining nutrients and habitats from crops, meanwhile, promoting plant growth and health through hormone production, nutrient regulation, and the suppression of pathogenic microorganisms. Furthermore, endophytic bacteria efficiently degrade PAEs in soil-crop systems through synergistic interactions with indigenous rhizosphere microflora and regulatory effects on enzyme activity in crops. Here, we review the role of endophytic bacteria in the bioremediation of PAEs-contaminated crops and soils. In addition, we discuss the scarcity of endophytic bacterial strains with a confirmed ability to degrade PAEs, and underscore the lack of the research on the mechanisms of PAEs degradation by these bacteria. This review also points out that future study should investigate the molecular mechanisms underlying the interaction between endophytic bacteria and PAEs to offer novel insights and solutions for environmental protection and sustainable agricultural development.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 378-390"},"PeriodicalIF":5.9,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068075","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}
{"title":"Comparing the compositions and influence of aerosol particles retained on trees, shrubs, and herbs","authors":"Fangmin Fei , Siqi Chen , Yaobin Song, Ming Dong, Hua Yu","doi":"10.1016/j.jes.2024.11.031","DOIUrl":"10.1016/j.jes.2024.11.031","url":null,"abstract":"<div><div>Aerosol particle pollution has become an increasing serious environmental problem, and urban vegetation plays a long-lasting and positive role in mitigating it. This study compared the particle capture abilities of trees, shrubs, and herbs, and examined the compositions and influence of aerosol particles accumulated on leaf functional traits. Retained particles primarily contained Ca<sup>2+</sup>, K<sup>+</sup>, SO<sub>4</sub><sup>2−</sup>, NO<sub>3</sub><sup>−</sup> and NH<sub>4</sub><sup>+</sup>, indicating their anthropogenic origins. The leathery-leaved tree <em>Osmanthus fragrans</em> and the papery-leaved herb <em>Alternanthera sessilis</em> demonstrated the higher competence in particle accumulation than other plants, and leaf morphologic structures (<em>e.g</em>., leaf grooves, trichomes, waxy layers, and stomata characteristics) were closely associated with particle capture by plant species. Particle retention negatively impacted stomata, impeding photosynthesis, and reducing transpiration. In response to particle accumulation, plants tended to decrease specific leaf area and adjust stomatal conductance. Both growth form and leaf texture significantly influenced the particle capture abilities of different plant species. The substantial contribution of plants, particularly herbs in the lower vegetation strata, to particle removal should not be overlooked. Vegetation with a tree-shrub-herb configuration excels at particle capture, offering potential advantages in mitigating particle pollution and enhancing ecological benefits.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 645-661"},"PeriodicalIF":5.9,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115854","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}