Environmental Chemistry Letters最新文献

{"title":"Suspended airborne microplastics studies in Asia","authors":"Yin Nyein Myat,&nbsp;Jira Kongpran,&nbsp;Udomratana Vattanasit,&nbsp;Shuhei Tanaka","doi":"10.1007/s10311-024-01778-4","DOIUrl":"10.1007/s10311-024-01778-4","url":null,"abstract":"<div><p>Microplastics are contaminating air, water, soils, both in populated megacities and in remote areas. Here we review analytical methodologies and occurrence of suspended airborne microplastics in Asia. Forty-three studies on suspended airborne microplastics were examined in thirteen countries across Asia. Abundance of suspended airborne microplastics ranged from 0.93 to 8,865 particles/m³ in indoor locations, 0.017 to 18,880 particles/m³ in outdoor areas, and 0.39 to 19 particles per 100 m³ in the oceanic environment. Suspended airborne microplastics mostly had the shape of fibers and fragments. Polyethylene, polypropylene, polyethylene terephthalate, polyvinyl chloride, and polystyrene polymers were commonly found. The size of plastic particles ranged from 0.43 to 9,555 µm, and the strategies used in sampling and analytical methods can influence the size of suspended airborne microplastics. Occurrence of suspended airborne microplastics in Asia demonstrates a critical pollution issue in the region.</p></div>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"22 6","pages":"2887 - 2911"},"PeriodicalIF":15.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330190","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":"Food safety aspects of carbon dots: a review","authors":"Duyen H. H. Nguyen, Hassan El-Ramady, József Prokisch","doi":"10.1007/s10311-024-01779-3","DOIUrl":"https://doi.org/10.1007/s10311-024-01779-3","url":null,"abstract":"<p>Discovered in 2004, carbon dots have garnered a major attention due to their unique optical properties, nanoscale size, and cost-effectiveness. Their potential uses are applicable for bioimaging, electronics, and the food industry. Carbon dots are promising tools for detecting contaminants, identifying harmful bacteria, and monitoring essential nutrients. Here, we review the safety risks associated with applying carbon dots in the food industry, focusing on their integration into global food safety frameworks. We highlight recent advancements in the detection capabilities of carbon dots, showcasing their sensitivity and specificity in identifying foodborne pathogens and contaminants. We discuss strategies to mitigate potential health risks, such as optimizing carbon dot synthesis to minimize their toxicity and ensuring thorough regulatory assessments. Current research shows that carbon dots improve food safety, but research is needed to address safety concerns and ensure consumer confidence.</p>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"10 1","pages":""},"PeriodicalIF":15.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330231","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":"The arms race of environmental scientists to purify contaminated water","authors":"Eric Lichtfouse,&nbsp;Virender K. Sharma,&nbsp;Dionysios D. Dionysiou","doi":"10.1007/s10311-024-01775-7","DOIUrl":"10.1007/s10311-024-01775-7","url":null,"abstract":"","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"22 6","pages":"2607 - 2609"},"PeriodicalIF":15.0,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142317539","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":"The revival of cyclodextrins as active pharmaceutical ingredients","authors":"Miriana Kfoury, Eric Lichtfouse, Sophie Fourmentin","doi":"10.1007/s10311-024-01782-8","DOIUrl":"https://doi.org/10.1007/s10311-024-01782-8","url":null,"abstract":"","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"43 1","pages":""},"PeriodicalIF":15.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142317629","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":"Seamless carbon nitride growth on bimetallic oxide for antibiotic residue degradation","authors":"Sulakshana Shenoy, Chitiphon Chuaicham, Karthikeyan Sekar, Keiko Sasaki","doi":"10.1007/s10311-024-01781-9","DOIUrl":"https://doi.org/10.1007/s10311-024-01781-9","url":null,"abstract":"<p>Emergence of antibiotic-resistant bacteria from overuse of antibiotics is a significant threat to human health. Photocatalysis utilizing semiconductors like graphitic carbon nitride (g-C₃N₄) is cost-effective for antibiotic degradation, however its efficiency is limited by rapid charge carrier recombination. This can be mitigated by forming heterojunctions with compatible semiconductors. Metal oxides, commonly employed for this purpose, are typically deposited on g-C₃N₄ surfaces, and often agglomerate, resulting in uneven distribution and reduced number of active-sites. Here we present a facile approach for in situ polymerization of g-C₃N₄ sheets onto bimetallic oxide surfaces, facilitating their seamless integration. CoNiO₂ was utilized as substrate for growth of g-C₃N₄, which improved crystallinity and surface area of g-C₃N₄-CoNiO₂ composite. Optimized g-C₃N₄-CoNiO₂-3% achieved a tetracycline degradation efficiency of 95.6%, markedly exceeding 61.3% degradation observed with pristine g-C₃N₄. Extended X-ray absorption fine structure spectroscopy confirmed synergistic interaction between CoNiO₂ and N-coordinating sites of g-C₃N₄ by interfacial Ni–N₂ bond, enhancing electron transport. This interaction is further evidenced by energy-resolved distribution of electron trap patterns from reversed double-beam photoacoustic spectroscopy, which reveal that while g-C₃N₄ displays significant electron trap density peaks around 2.7–2.9 eV. The g-C₃N₄-CoNiO₂ enhances this density, indicating formation of an electrical interface heterojunction that improves electron and hole migration across interfacial boundary. Electron spin resonance measurements confirmed that superoxide anion radicals and holes were main active species in promoting tetracycline degradation. Integration of g-C₃N₄ with bimetallic oxides enhances antibiotic degradation efficiency, presenting a promising and impactful strategy for environmental remediation.</p>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"14 1","pages":""},"PeriodicalIF":15.7,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142276729","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":"Metabolic and neurodevelopmental effects of the environmental endocrine disruptor di-2-ethylhexyl phthalate: a review","authors":"Weiwei Wang, Xiaolei Liu, Yu Ding, Rui Bu, Wei Miao, Jianhong Han, Tianhao Bao","doi":"10.1007/s10311-024-01780-w","DOIUrl":"https://doi.org/10.1007/s10311-024-01780-w","url":null,"abstract":"<p>Di-2-ethylhexyl phthalate is a plasticizer of health concern due to its presence in the environment and its association with health issues such as metabolic and neurodevelopment disorders. We review the potential hazards and mechansims of di-2-ethylhexyl phthalate exposure on the metabolism and neurodevelopment. Di-2-ethylhexyl phthalate is closely linked to metabolic diseases such as obesity and diabetes, interfering with adipocyte differentiation and lipid metabolism through multiple pathways, thereby disrupting the energy balance. Di-2-ethylhexyl phthalate is also altering the pancreatic function and glucose metabolism. In terms of neurodevelopment, exposure to di-2-ethylhexyl phthalate is associated with neurological abnormalities, crossing the blood–brain barrier and directly impacting the central nervous system. Early exposure may lead to abnormalities in neuronal migration, synapse formation, and neural connectivity, potentially resulting in cognitive and behavioral consequences. Di-2-ethylhexyl phthalate exposure, particularly during childhood and adolescence, may have long-term effects on learning, memory, and behavior.</p>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"56 1","pages":""},"PeriodicalIF":15.7,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142276088","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":"Herbicide risks to non-target species and the environment: A review","authors":"Deepika Bamal,&nbsp;Anil Duhan,&nbsp;Ajay Pal,&nbsp;Ravi Kumar Beniwal,&nbsp;Priyanka Kumawat,&nbsp;Sachin Dhanda,&nbsp;Ankit Goyat,&nbsp;Virender Singh Hooda,&nbsp;Rajpaul Yadav","doi":"10.1007/s10311-024-01773-9","DOIUrl":"10.1007/s10311-024-01773-9","url":null,"abstract":"<div><p>The worldwide contamination of waters and food by herbicides is a major health issue, yet the toxic effects of herbicides to non-target organisms and ecosystems have been poorly summarized. Here we review the effects of herbicides belonging to the groups of chloroacetanilides, imidazolinones, sulfonylureas, and pyrimidinylcarboxylic, on small invertebrates, high vertebrates, plants, and the surrounding ecosystems. We describe toxicity in terms of behavioural changes, molecular biosynthesis, endocrine disruption, immunological responses, enzymatic alteration, and reproductive disorders. Strategies to decrease toxic effects are also presented. We observe widespread toxicity threats in amphibians and major aquatic species. Each herbicide group displays a different toxicity risk. For instance, chloroacetanilides display higher risks to soil, aquatic, algal, cyanobacteria, and terrestrial species, whereas alachlor, acetochlor, and metolachlor are highly carcinogenic to humans. Most imidazolinone herbicides cause phytotoxicity in non-target and succeeding crops. Sulfonyl-urea herbicides are severely toxic to soil microbes and succeeding crops. Pyrimidinylcarboxy herbicides are more toxic to soil microbes, aquatic species, and rats.</p></div>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"22 6","pages":"2977 - 3032"},"PeriodicalIF":15.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142138002","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":"Machine learning to predict the production of bio-oil, biogas, and biochar by pyrolysis of biomass: a review","authors":"Kapil Khandelwal,&nbsp;Sonil Nanda,&nbsp;Ajay K. Dalai","doi":"10.1007/s10311-024-01767-7","DOIUrl":"10.1007/s10311-024-01767-7","url":null,"abstract":"<div><p>The world energy consumption has increased by + 195% since 1970 with more than 80% of the energy mix originating from fossil fuels, thus leading to pollution and global warming. Alternatively, pyrolysis of modern biomass is considered carbon neutral and produces value-added biogas, bio-oils, and biochar, yet actual pyrolysis processes are not fully optimized. Here, we review the use of machine learning to improve the pyrolysis of lignocellulosic biomass, with emphasis on machine learning algorithms and prediction of product characteristics. Algorithms comprise regression analysis, artificial neural networks, decision trees, and the support vector machine. Machine learning allows for the prediction of yield, quality, surface area, reaction kinetics, techno-economics, and lifecycle assessment of biogas, bio-oil, and biochar. The robustness of machine learning techniques and engineering applications are discussed.</p></div>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"22 6","pages":"2669 - 2698"},"PeriodicalIF":15.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142138003","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":"Hydroxyl radicals in ozone-based advanced oxidation of organic contaminants: A review","authors":"Mei Dai,&nbsp;Qiuya Niu,&nbsp;Shaohua Wu,&nbsp;Yan Lin,&nbsp;Jayanta Kumar Biswas,&nbsp;Chunping Yang","doi":"10.1007/s10311-024-01772-w","DOIUrl":"10.1007/s10311-024-01772-w","url":null,"abstract":"<div><p>Many organic pollutants are chemically stable and thus cannot be degraded by classical wastewater treatment techniques. To solve this issue, ozone-based advanced oxidation processes using hydroxyl radicals with strong oxidation ability have been recently developed. Here we review hydroxyl radicals in ozone-based advanced oxidation processes with focus on reaction characteristics, generation, detection, and quantitation of hydroxyl radicals. Hydroxyl radicals are generated using ozone micro/nano-bubbles, peroxymonosulfate-activated ozone, ozone coupled with Fenton oxidation, electro-peroxone, or catalytic ozonation. Hydroxyl radicals are detected by electron paramagnetic resonance and quenching experiments. We also present applications in wastewater treatment and reactor design. Ozone-based advanced oxidation combines direct oxidation by ozone molecules and indirect oxidation by reactive oxygen species; regulating these two pathways remains challenging. The generation of hydroxyl radicals depends on the environmental matrix and on the chemical structure, properties, and ozone reactivity of contaminants. Chain reactions among reactive oxygen species induce contradictions during the analysis of results obtained by electron paramagnetic resonance, quenching techniques, and probe methods.</p></div>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"22 6","pages":"3059 - 3106"},"PeriodicalIF":15.0,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123897","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":"Magnetic seed technology for the efficient removal of nitrogen from wastewater","authors":"Si Li,&nbsp;Guocheng Zhu,&nbsp;Shijun Yan,&nbsp;Andrew S. Hursthouse","doi":"10.1007/s10311-024-01776-6","DOIUrl":"10.1007/s10311-024-01776-6","url":null,"abstract":"<div><p>Nitrogen pollution is a global issue impacting ecosystems, climate change, human health, and the economy. The challenge to reduce nitrogen pollution as a priority highlights the wastewater treatment system an important point of control. Coagulation, a common water treatment process, has a positive impact on the overall treatment process but often struggles to address nitrogen pollution effectively. Our study introduces a novel magnetic seed to enhance coagulation in treating nitrogen pollution, offering a new solution for the global water treatment industry. We focus on the efficiency, mechanistic detail, and recovery potential of a magnetic zirconium tannate in treating real-world wastewater nitrogen under coagulation conditions. Results show that 9 g/L of magnetic zirconium tannate effectively removes ammonia nitrogen, organic nitrogen, and total nitrogen from five different wastewater types. For low-concentration wastewater with ammonia nitrogen below 20 mg/L and organic nitrogen below 5 mg/L, removal rates reach up to 100%. For high-concentration wastewater with ammonia nitrogen below 98 mg/L and organic nitrogen below 86 mg/L, the maximum removal rate is 59% for ammonia nitrogen and 88% for organic nitrogen. Spectral analysis reveals that magnetic zirconium tannate adsorbs nitrogen compounds in water through both hydrogen bonding and electrostatic interactions, achieving excellent treatment outcomes. It can be efficiently recovered without using complex organic eluents and is easily separated from the flocculate. This technology offers non-disruptive supplement for current treatment approaches to meet the global nitrogen pollution challenge head on.</p></div>","PeriodicalId":541,"journal":{"name":"Environmental Chemistry Letters","volume":"22 6","pages":"2619 - 2625"},"PeriodicalIF":15.0,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10311-024-01776-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}