首页 > 最新文献

Bulletin of Environmental Contamination and Toxicology最新文献

英文 中文
Photodegradation of Neonicotinoid Insecticides Nitenpyram, Thiacloprid, and Acetamiprid in Water and Soil Environments. 新烟碱类杀虫剂硝虫胺、噻虫啉和啶虫脒在水和土壤环境中的光降解。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-08 DOI: 10.1007/s00128-024-03975-x
Yang Li, Yadong Li

The photodegradations of three selected neonicotinoid insecticides nitenpyram, thiacloprid, and acetamiprid were investigated in both water and soil samples under natural sunlight, UVA light, and UVB light. The results indicate that these insecticides undergo significant degradations when subjected to sunlight, whether they are in deionized (DI) water, tap water, and DI water containing 100 mg/L humic acids or in soil. The degradation half-lives of nitenpyram, thiacloprid, and acetamiprid in tap water under sunlight were found to be 3.7, 4.7, and 8.9 h, respectively, in DI water 5.4, 6.3, 9.1 h, respectively, in DI water containing 100 mg/L humic acids 3.6, 3.3, 6.5 h, respectively, and in soil 7.5, 7.9, and 15.9 h, respectively. The degradation due to hydrolysis was found insignificant as compared to photodegradation. The examination of the effects of light source revealed that the UVB in the sunlight plays a major role in the photodegradation of these three neonicotinoids, and the effects of UVA and visible light are negligible. The analysis on the degradation products indicated that the nitroguanidine group in these insecticides is unstable and prone to break up under sunlight. A total of nine degradation products were detected, of which the health effects and the fate and transport in the environment need to be further studied.

研究了在自然光、UVA 光和 UVB 光下,三种选定的新烟碱类杀虫剂硝虫嗪、噻虫啉和啶虫脒在水和土壤样品中的光降解情况。结果表明,无论是在去离子水、自来水、含 100 毫克/升腐殖酸的去离子水中,还是在土壤中,这些杀虫剂在阳光下都会发生显著降解。在阳光下,硝虫嗪、噻虫啉和啶虫脒在自来水中的降解半衰期分别为 3.7、4.7 和 8.9 小时;在去离子水中的降解半衰期分别为 5.4、6.3 和 9.1 小时;在含 100 毫克/升腐殖酸的去离子水中的降解半衰期分别为 3.6、3.3 和 6.5 小时;在土壤中的降解半衰期分别为 7.5、7.9 和 15.9 小时。与光降解相比,水解引起的降解微不足道。对光源影响的研究表明,阳光中的 UVB 对这三种新烟碱类化合物的光降解起主要作用,而 UVA 和可见光的影响可以忽略不计。对降解产物的分析表明,这些杀虫剂中的硝基胍基团不稳定,在阳光下容易分解。共检测到九种降解产物,其对健康的影响以及在环境中的归宿和迁移有待进一步研究。
{"title":"Photodegradation of Neonicotinoid Insecticides Nitenpyram, Thiacloprid, and Acetamiprid in Water and Soil Environments.","authors":"Yang Li, Yadong Li","doi":"10.1007/s00128-024-03975-x","DOIUrl":"10.1007/s00128-024-03975-x","url":null,"abstract":"<p><p>The photodegradations of three selected neonicotinoid insecticides nitenpyram, thiacloprid, and acetamiprid were investigated in both water and soil samples under natural sunlight, UVA light, and UVB light. The results indicate that these insecticides undergo significant degradations when subjected to sunlight, whether they are in deionized (DI) water, tap water, and DI water containing 100 mg/L humic acids or in soil. The degradation half-lives of nitenpyram, thiacloprid, and acetamiprid in tap water under sunlight were found to be 3.7, 4.7, and 8.9 h, respectively, in DI water 5.4, 6.3, 9.1 h, respectively, in DI water containing 100 mg/L humic acids 3.6, 3.3, 6.5 h, respectively, and in soil 7.5, 7.9, and 15.9 h, respectively. The degradation due to hydrolysis was found insignificant as compared to photodegradation. The examination of the effects of light source revealed that the UVB in the sunlight plays a major role in the photodegradation of these three neonicotinoids, and the effects of UVA and visible light are negligible. The analysis on the degradation products indicated that the nitroguanidine group in these insecticides is unstable and prone to break up under sunlight. A total of nine degradation products were detected, of which the health effects and the fate and transport in the environment need to be further studied.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 6","pages":"66"},"PeriodicalIF":2.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Correction: Toxic Effects of Biogenic and Synthesized Silver Nanoparticles on Sea Urchin Echinometra lucunter Embryos. 更正:生物银纳米粒子和合成银纳米粒子对海胆 Echinometra lucunter 胚胎的毒性效应。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-08 DOI: 10.1007/s00128-024-03974-y
Mariana Bruni, Cristiane Ottoni, Denis Abessa
{"title":"Correction: Toxic Effects of Biogenic and Synthesized Silver Nanoparticles on Sea Urchin Echinometra lucunter Embryos.","authors":"Mariana Bruni, Cristiane Ottoni, Denis Abessa","doi":"10.1007/s00128-024-03974-y","DOIUrl":"10.1007/s00128-024-03974-y","url":null,"abstract":"","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 6","pages":"67"},"PeriodicalIF":2.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Levels and Classification of Microplastics and Their Impact on the Wellbeing of Selected Commercially Important Fish Species in Kisumu Bay, Lake Victoria. 维多利亚湖基苏木湾微塑料的含量和分类及其对某些重要商业鱼类的影响。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-05 DOI: 10.1007/s00128-024-03976-w
Sylvia Wanjiku Gathu, Nzula Kivuva Kitaka, Lewis Morara Sitoki, Elick Onyango Otachi

Microplastics (MPs) are emerging pollutants of concern in aquatic ecosystems. Fish ingest MPs accidentally during normal feeding because they resemble prey or by ingesting prey that previously consumed them. Despite severe plastic pollution in Africa, some countries, including Kenya have implemented laws to curb this pollution menace. MPs have scantly been studied in African freshwaters. This study provides empirical data and describes the levels of MPs in four commercially important fish species in Lake Victoria. A total of 95 fish samples were collected from four sampling sites (inshore-offshore waters) between March and May 2022. Microscopy and Attenuated Total Reflectance Fourier Transformed Infrared (ATR-FTIR) spectroscopy methods were used to identify MPs. In this study, 62 out of 95 (65.26%) of the gastrointestinal tracts of the sampled fish contained MPs. The four species showed different proportions of detected MPs among the sampled individuals: 75.00% (Clarias gariepinus), 75.00% (Synodontis victoriae), 71.43% (Lates niloticus), and 59.26% (Oreochromis niloticus). Polystyrene (PS) and poly (perfluorobutadiene) were the main plastic polymers in the fish samples. The condition factors estimated for O. niloticus, S. victoriae, and L. niloticus were > 1 and < 1 for C. gariepinus, respectively. Positive correlations were observed between microplastic numbers and fish length and microplastic numbers and fish weight. However, the low R2 values obtained implied no strong relationship exists between these parameters. These findings provide evidence of microplastic contamination in fish in Kisumu Bay.

微塑料(MPs)是水生生态系统中新出现的令人担忧的污染物。鱼类在正常摄食过程中会因为微塑料与猎物相似而意外摄入微塑料,或者因为摄入了之前吃掉它们的猎物而摄入微塑料。尽管非洲塑料污染严重,但包括肯尼亚在内的一些国家已经实施了相关法律来遏制这种污染威胁。对非洲淡水中 MPs 的研究很少。本研究提供了经验数据,并描述了维多利亚湖中四种重要商业鱼类体内的 MPs 含量。2022 年 3 月至 5 月期间,从四个采样点(近岸-离岸水域)共采集了 95 份鱼类样本。采用显微镜和衰减全反射傅立叶变换红外光谱(ATR-FTIR)方法鉴定 MPs。在这项研究中,95 条采样鱼的胃肠道中有 62 条(65.26%)含有 MPs。四个物种的采样个体中检测到的 MPs 比例各不相同:75.00%(加里鲈)、75.00%(维多利亚鲈)、71.43%(尼罗河鲈)和 59.26%(尼罗河鲈)。聚苯乙烯(PS)和聚全氟丁二烯是鱼类样本中的主要塑料聚合物。尼罗河鲈、维多利亚鲈和尼罗河鲫的条件因子均大于 1,2 的数值表明这些参数之间不存在密切关系。这些发现提供了基苏木湾鱼类受到微塑料污染的证据。
{"title":"Levels and Classification of Microplastics and Their Impact on the Wellbeing of Selected Commercially Important Fish Species in Kisumu Bay, Lake Victoria.","authors":"Sylvia Wanjiku Gathu, Nzula Kivuva Kitaka, Lewis Morara Sitoki, Elick Onyango Otachi","doi":"10.1007/s00128-024-03976-w","DOIUrl":"10.1007/s00128-024-03976-w","url":null,"abstract":"<p><p>Microplastics (MPs) are emerging pollutants of concern in aquatic ecosystems. Fish ingest MPs accidentally during normal feeding because they resemble prey or by ingesting prey that previously consumed them. Despite severe plastic pollution in Africa, some countries, including Kenya have implemented laws to curb this pollution menace. MPs have scantly been studied in African freshwaters. This study provides empirical data and describes the levels of MPs in four commercially important fish species in Lake Victoria. A total of 95 fish samples were collected from four sampling sites (inshore-offshore waters) between March and May 2022. Microscopy and Attenuated Total Reflectance Fourier Transformed Infrared (ATR-FTIR) spectroscopy methods were used to identify MPs. In this study, 62 out of 95 (65.26%) of the gastrointestinal tracts of the sampled fish contained MPs. The four species showed different proportions of detected MPs among the sampled individuals: 75.00% (Clarias gariepinus), 75.00% (Synodontis victoriae), 71.43% (Lates niloticus), and 59.26% (Oreochromis niloticus). Polystyrene (PS) and poly (perfluorobutadiene) were the main plastic polymers in the fish samples. The condition factors estimated for O. niloticus, S. victoriae, and L. niloticus were > 1 and < 1 for C. gariepinus, respectively. Positive correlations were observed between microplastic numbers and fish length and microplastic numbers and fish weight. However, the low R<sup>2</sup> values obtained implied no strong relationship exists between these parameters. These findings provide evidence of microplastic contamination in fish in Kisumu Bay.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 6","pages":"65"},"PeriodicalIF":2.7,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Correction: Exposure Assessment of Pesticides in Surface Waters of Ontario, Canada Reveals Low Probability of Exceeding Acute Regulatory Thresholds. 更正:加拿大安大略省地表水中杀虫剂暴露评估显示,超过急性监管阈值的概率很低。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-03 DOI: 10.1007/s00128-024-03972-0
Danielle Desrochers, Ryan S Prosser, Mark L Hanson, Jose Luis Rodríguez-Gil
{"title":"Correction: Exposure Assessment of Pesticides in Surface Waters of Ontario, Canada Reveals Low Probability of Exceeding Acute Regulatory Thresholds.","authors":"Danielle Desrochers, Ryan S Prosser, Mark L Hanson, Jose Luis Rodríguez-Gil","doi":"10.1007/s00128-024-03972-0","DOIUrl":"10.1007/s00128-024-03972-0","url":null,"abstract":"","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 6","pages":"64"},"PeriodicalIF":2.7,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Determination of the Suitable Biomonitors to be used in Monitoring the Change for Reducing the Concentration of V in Areas with High-Level of Air Pollution. 确定用于监测空气污染严重地区降低 V 浓度变化的合适生物监测器。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1007/s00128-024-03966-y
Melike Cebi Kilicoglu, Ilknur Zeren Cetin

In this study, Vanadium (V) concentrations were analyzed in five tree species (Pinus pinaster, Cupressus arizonica, Picea orientalis, Cedrus atlantica, and Pseudotsuga menziesii) from Duzce city (Turkey), a highly polluted area. The research compared V levels across species, organs, directions, and age groups over the past 40 years. Trees, which absorb nutrients from soil and air, were used as biomonitors. Cupressus arizonica and Cedrus atlantica emerged as effective for V mitigation due to high wood accumulation. Significant inter- and intra-species variations in V concentrations were noted, underscoring their potential as V indicators. Annual rings from older trees offer a long-term monitoring method. This study highlights the importance of species-specific selection for monitoring heavy metals and the role of wood in preventing reintroduction of metals into ecosystems. It enhances our understanding of V dynamics and the environmental monitoring potential of these species.

在这项研究中,分析了高度污染地区杜兹塞市(土耳其)的五种树种(欧洲赤松、欧洲冲天柏、东方云杉、大西洋雪松和红松)的钒(V)浓度。研究比较了过去 40 年中不同物种、器官、方向和年龄组的 V 水平。树木从土壤和空气中吸收养分,被用作生物监测器。由于木材蓄积量高,Cupressus arizonica 和 Cedrus atlantica 成为有效的钒减排树种。研究发现,树种间和树种内的氯离子浓度存在显著差异,这凸显了它们作为氯离子指标的潜力。老树的年轮提供了一种长期监测方法。这项研究强调了选择特定物种监测重金属的重要性,以及木材在防止金属重新进入生态系统中的作用。它加深了我们对重金属动态和这些物种的环境监测潜力的了解。
{"title":"Determination of the Suitable Biomonitors to be used in Monitoring the Change for Reducing the Concentration of V in Areas with High-Level of Air Pollution.","authors":"Melike Cebi Kilicoglu, Ilknur Zeren Cetin","doi":"10.1007/s00128-024-03966-y","DOIUrl":"10.1007/s00128-024-03966-y","url":null,"abstract":"<p><p>In this study, Vanadium (V) concentrations were analyzed in five tree species (Pinus pinaster, Cupressus arizonica, Picea orientalis, Cedrus atlantica, and Pseudotsuga menziesii) from Duzce city (Turkey), a highly polluted area. The research compared V levels across species, organs, directions, and age groups over the past 40 years. Trees, which absorb nutrients from soil and air, were used as biomonitors. Cupressus arizonica and Cedrus atlantica emerged as effective for V mitigation due to high wood accumulation. Significant inter- and intra-species variations in V concentrations were noted, underscoring their potential as V indicators. Annual rings from older trees offer a long-term monitoring method. This study highlights the importance of species-specific selection for monitoring heavy metals and the role of wood in preventing reintroduction of metals into ecosystems. It enhances our understanding of V dynamics and the environmental monitoring potential of these species.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 6","pages":"63"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142563427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Effect of Rice Residue Biochar on Lead Remediation, Growth, and Micronutrient Uptake in Indian Mustard (Brassica juncea (L.) Czern.) Cultivated in Contaminated Soil. 稻米残渣生物炭对污染土壤中种植的印度芥菜(Brassica juncea (L.) Czern.)在受污染土壤中栽培的印度芥菜(Brassica juncea (L) Czern.
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-28 DOI: 10.1007/s00128-024-03973-z
Kalyani Patil, Rajeev Sikka, Ravi Saini, Hanuman Singh Jatav, Vishnu D Rajput, Tatiana Minkina

A pot experiment at Punjab Agricultural University, Ludhiana, India, assessed rice residue biochar's effect on remediating lead and cadmium in soil and on Indian mustard growth. Soil spiked with Cd (0, 10, 25 mg kg⁻¹) and Pb (0, 25, 50 mg kg⁻¹) was amended with biochar (0, 0.5, 1, 2% w/w) in a completely randomized design with three replications. Adding 2% biochar reduced DTPA-Pb in soil and Pb in shoots by 61% and 56%, respectively. Biochar increased dry matter yield (DMY) by 18% at 1% but decreased by 19% at 2%. The 1% biochar increased shoot Fe, Mn, Zn, and Cu by 11.39%, 26.74%, 5.89%, and 17.72%, respectively. Rice residue biochar significantly improved the DMY and micronutrient content of Indian mustard by reducing lead contamination in co-contaminated soil.

印度卢迪亚纳旁遮普农业大学的一项盆栽实验评估了稻米渣生物炭对土壤中铅和镉的修复作用以及对印度芥菜生长的影响。土壤中添加了镉(0、10、25 毫克/千克-¹)和铅(0、25、50 毫克/千克-¹),并用生物炭(0、0.5、1、2% w/w)进行改良,采用完全随机设计,三次重复。添加 2% 的生物炭后,土壤中的 DTPA-Pb 和芽中的 Pb 分别减少了 61% 和 56%。添加 1%的生物炭时,干物质产量(DMY)增加了 18%,而添加 2%时则减少了 19%。1% 的生物炭可使芽中的铁、锰、锌和铜分别增加 11.39%、26.74%、5.89% 和 17.72%。通过减少共污染土壤中的铅污染,米渣生物炭明显改善了印度芥菜的 DMY 和微量营养元素含量。
{"title":"Effect of Rice Residue Biochar on Lead Remediation, Growth, and Micronutrient Uptake in Indian Mustard (Brassica juncea (L.) Czern.) Cultivated in Contaminated Soil.","authors":"Kalyani Patil, Rajeev Sikka, Ravi Saini, Hanuman Singh Jatav, Vishnu D Rajput, Tatiana Minkina","doi":"10.1007/s00128-024-03973-z","DOIUrl":"10.1007/s00128-024-03973-z","url":null,"abstract":"<p><p>A pot experiment at Punjab Agricultural University, Ludhiana, India, assessed rice residue biochar's effect on remediating lead and cadmium in soil and on Indian mustard growth. Soil spiked with Cd (0, 10, 25 mg kg⁻¹) and Pb (0, 25, 50 mg kg⁻¹) was amended with biochar (0, 0.5, 1, 2% w/w) in a completely randomized design with three replications. Adding 2% biochar reduced DTPA-Pb in soil and Pb in shoots by 61% and 56%, respectively. Biochar increased dry matter yield (DMY) by 18% at 1% but decreased by 19% at 2%. The 1% biochar increased shoot Fe, Mn, Zn, and Cu by 11.39%, 26.74%, 5.89%, and 17.72%, respectively. Rice residue biochar significantly improved the DMY and micronutrient content of Indian mustard by reducing lead contamination in co-contaminated soil.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 5","pages":"62"},"PeriodicalIF":2.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142520648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Parameters Optimization for Improving Bioluminescence Inhibition Assay Using Vibrio fischeri Bacteria to Detect Lipopolysaccharide Toxicity in Aquatic Environments. 利用费氏弧菌改进生物发光抑制测定以检测水生环境中脂多糖毒性的参数优化
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-28 DOI: 10.1007/s00128-024-03970-2
Reyhaneh Dehghan, Khosro Piri, Asghar Abdoli, Saman Hosseinkhani

Bioluminescence inhibition of Vibrio fischeri is a widely used method for toxicity testing in aquatic environments. Certain complex biological contaminants, such as lipopolysaccharide (LPS), can interfere with metabolic pathways during toxicity assays. The standard 15-minute Vibrio fischeri bioluminescence assay has limitations when evaluating and screening water toxicity against complex and emerging chemicals like LPS. To accurately determine the effects of such substances, it is crucial to use a bioassay that encompasses a sufficient cell cycle period. This study tested LPS at varying incubation times (ranging from 60 s to 60 min) and concentrations (1-1*10- 12 mg/ml) to identify the appropriate incubation time for bioluminescence inhibition and toxicity testing. The results indicated that bioluminescence inhibition begins within 60 s and reaches maximum inhibition at 60 min. However, at 30 and 45 min, the bacterial response to different concentrations of LPS varied, with some concentrations causing increased bioluminescence. The EC50 values at different times (60 s, 15, 30, 45, and 60 min) were found to be 0.0012, 0.0063, 4.07e + 54, 3.85e-8, and 3.34e-9 mg/ml respectively. This study highlights the importance of considering incubation time when using bioluminescence inhibition to detect acute toxicity in aquatic ecosystems. A longer incubation time may enhance the method's sensitivity and improve its ability to detect low levels of toxins, such as LPS, in water resources.

鱼腥弧菌的生物发光抑制是一种广泛用于水生环境中毒性测试的方法。某些复杂的生物污染物,如脂多糖(LPS),会干扰毒性检测过程中的代谢途径。标准的 15 分钟费氏弧菌生物发光试验在评估和筛选 LPS 等复杂和新出现的化学物质对水的毒性时存在局限性。要准确确定这类物质的影响,使用包含足够细胞周期的生物测定方法至关重要。本研究测试了不同孵育时间(从 60 秒到 60 分钟不等)和浓度(1-1*10- 12 毫克/毫升)的 LPS,以确定生物发光抑制和毒性测试的适当孵育时间。结果表明,生物发光抑制作用在 60 秒内开始,60 分钟时达到最大抑制作用。然而,在 30 分钟和 45 分钟时,细菌对不同浓度 LPS 的反应各不相同,有些浓度会导致生物发光增加。不同时间(60 秒、15、30、45 和 60 分钟)的 EC50 值分别为 0.0012、0.0063、4.07e + 54、3.85e-8 和 3.34e-9 mg/ml。这项研究强调了在使用生物发光抑制法检测水生生态系统急性毒性时考虑孵育时间的重要性。较长的孵育时间可提高该方法的灵敏度,并提高其检测水资源中低浓度毒素(如 LPS)的能力。
{"title":"Parameters Optimization for Improving Bioluminescence Inhibition Assay Using Vibrio fischeri Bacteria to Detect Lipopolysaccharide Toxicity in Aquatic Environments.","authors":"Reyhaneh Dehghan, Khosro Piri, Asghar Abdoli, Saman Hosseinkhani","doi":"10.1007/s00128-024-03970-2","DOIUrl":"10.1007/s00128-024-03970-2","url":null,"abstract":"<p><p>Bioluminescence inhibition of Vibrio fischeri is a widely used method for toxicity testing in aquatic environments. Certain complex biological contaminants, such as lipopolysaccharide (LPS), can interfere with metabolic pathways during toxicity assays. The standard 15-minute Vibrio fischeri bioluminescence assay has limitations when evaluating and screening water toxicity against complex and emerging chemicals like LPS. To accurately determine the effects of such substances, it is crucial to use a bioassay that encompasses a sufficient cell cycle period. This study tested LPS at varying incubation times (ranging from 60 s to 60 min) and concentrations (1-1*10<sup>- 12</sup> mg/ml) to identify the appropriate incubation time for bioluminescence inhibition and toxicity testing. The results indicated that bioluminescence inhibition begins within 60 s and reaches maximum inhibition at 60 min. However, at 30 and 45 min, the bacterial response to different concentrations of LPS varied, with some concentrations causing increased bioluminescence. The EC<sub>50</sub> values at different times (60 s, 15, 30, 45, and 60 min) were found to be 0.0012, 0.0063, 4.07e + 54, 3.85e-8, and 3.34e-9 mg/ml respectively. This study highlights the importance of considering incubation time when using bioluminescence inhibition to detect acute toxicity in aquatic ecosystems. A longer incubation time may enhance the method's sensitivity and improve its ability to detect low levels of toxins, such as LPS, in water resources.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 5","pages":"61"},"PeriodicalIF":2.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142520649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Impact of Triclosan on Bacterial Biodiversity and Sediment Enzymes - A Microcosm Study. 三氯生对细菌生物多样性和沉积物酶的影响--一项微观世界研究。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-22 DOI: 10.1007/s00128-024-03969-9
Priya Varghese, Kundan Kumar, Pritam Sarkar, Sutanu Karmakar, S P Shukla, Saurav Kumar, Vidya Shree Bharti, Tapas Paul, Debiprasad Kantal

Triclosan (TCS), a widely used antimicrobial biocide, has raised serious concern among the scientific community in recent years owing to its ubiquitous presence around the globe and toxicity to aquatic organisms. The current study investigated the alterations in bacterial diversity, nutrients, and sediment enzyme activity in TCS-exposed sediment. TCS concentrations of 3 mg/L (T1) and 6 mg/L (T2) were applied in a microcosm setup for 28 days to sediment collected from Versova Creek, Mumbai. Among sediment enzymes, dehydrogenase activity exhibited the greatest degree of variability in 3 mg/L exposed sediment. Nitrite, total nitrogen and urease exhibited higher concentrations in 6 mg/L TCS exposed sediment. The concentration of ammonia was observed to be decreasing in treatments exposed to 6 mg/L TCS. Total heterotrophic bacteria exhibited an increase in count in T1 and a decrease in T2. Metagenomics data showed a higher relative abundance of bacteria in T1 compared to T2 on the 28th day of sampling. Proteobacteria was found to be the most abundant phylum in all samples, and their relative abundance was reduced by 0.14% in T1 and 5.48% in T2. The results confirm the alterations in the composition of sediment bacterial communities and their enzymatic activities due to TCS exposure.

三氯生(TCS)是一种广泛使用的抗菌杀生物剂,由于其在全球无处不在以及对水生生物的毒性,近年来引起了科学界的严重关注。本研究调查了暴露于 TCS 的沉积物中细菌多样性、营养物质和沉积物酶活性的变化。在微观世界设置中,将 3 毫克/升(T1)和 6 毫克/升(T2)浓度的 TCS 施加到从孟买 Versova 溪收集的沉积物中,持续 28 天。在沉积物酶中,3 毫克/升暴露沉积物中脱氢酶活性的变化程度最大。亚硝酸盐、总氮和脲酶在 6 毫克/升 TCS 暴露沉积物中浓度较高。在暴露于 6 毫克/升 TCS 的处理中,氨的浓度呈下降趋势。异养菌总数在 T1 中增加,在 T2 中减少。元基因组学数据显示,在取样的第 28 天,T1 的细菌相对丰度高于 T2。蛋白质细菌是所有样本中数量最多的门类,其相对丰度在 T1 减少了 0.14%,在 T2 减少了 5.48%。这些结果证实了接触三氯杀螨醇会改变沉积物细菌群落的组成及其酶活性。
{"title":"Impact of Triclosan on Bacterial Biodiversity and Sediment Enzymes - A Microcosm Study.","authors":"Priya Varghese, Kundan Kumar, Pritam Sarkar, Sutanu Karmakar, S P Shukla, Saurav Kumar, Vidya Shree Bharti, Tapas Paul, Debiprasad Kantal","doi":"10.1007/s00128-024-03969-9","DOIUrl":"10.1007/s00128-024-03969-9","url":null,"abstract":"<p><p>Triclosan (TCS), a widely used antimicrobial biocide, has raised serious concern among the scientific community in recent years owing to its ubiquitous presence around the globe and toxicity to aquatic organisms. The current study investigated the alterations in bacterial diversity, nutrients, and sediment enzyme activity in TCS-exposed sediment. TCS concentrations of 3 mg/L (T1) and 6 mg/L (T2) were applied in a microcosm setup for 28 days to sediment collected from Versova Creek, Mumbai. Among sediment enzymes, dehydrogenase activity exhibited the greatest degree of variability in 3 mg/L exposed sediment. Nitrite, total nitrogen and urease exhibited higher concentrations in 6 mg/L TCS exposed sediment. The concentration of ammonia was observed to be decreasing in treatments exposed to 6 mg/L TCS. Total heterotrophic bacteria exhibited an increase in count in T1 and a decrease in T2. Metagenomics data showed a higher relative abundance of bacteria in T1 compared to T2 on the 28th day of sampling. Proteobacteria was found to be the most abundant phylum in all samples, and their relative abundance was reduced by 0.14% in T<sub>1</sub> and 5.48% in T<sub>2</sub>. The results confirm the alterations in the composition of sediment bacterial communities and their enzymatic activities due to TCS exposure.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 5","pages":"59"},"PeriodicalIF":2.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
The fate of Cd in Soils with Various Particle Sizes: Characteristics, Speciation Distribution and Influencing Factors. 不同粒径土壤中镉的归宿:特征、物种分布和影响因素。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-22 DOI: 10.1007/s00128-024-03968-w
Junwei Tang, Chaolan Zhang, Xutong Liu, Xianghua Wu, Yibo Zhang, Tao Zhang, Ruijing Xia, Kai Zhong

This study investigated the distribution of Cd in soil water-stable aggregate particles of varying sizes, revealing that smaller particles have higher total Cd content as well as different forms of Cd content, with the clay particle showing a greater tendency to accumulate Cd. However, the proportion of high activity Cd is lower in clay particles, posing a lower environmental risk of Cd transformation compared to silt particles. Adsorption experiments indicated that the clay particle exhibits the strongest adsorption capacity and highest adsorption rate. Additionally, correlation and principal component analyses identified Fe-Mn oxides and organic matter as the primary influencing factors on Cd distribution characteristics, with pH playing a secondary role. These findings provide valuable insights for the remediation of heavy metal-contaminated soil.

这项研究调查了不同大小的土壤水稳定集料颗粒中镉的分布情况,结果表明,较小的颗粒中总镉含量较高,而且镉含量的形式也各不相同,其中粘土颗粒更容易积累镉。不过,粘土颗粒中高活性镉的比例较低,与淤泥颗粒相比,镉转化的环境风险较低。吸附实验表明,粘土颗粒的吸附能力最强,吸附率最高。此外,相关分析和主成分分析表明,铁-锰氧化物和有机物是影响镉分布特征的主要因素,pH 值是次要因素。这些发现为重金属污染土壤的修复提供了宝贵的启示。
{"title":"The fate of Cd in Soils with Various Particle Sizes: Characteristics, Speciation Distribution and Influencing Factors.","authors":"Junwei Tang, Chaolan Zhang, Xutong Liu, Xianghua Wu, Yibo Zhang, Tao Zhang, Ruijing Xia, Kai Zhong","doi":"10.1007/s00128-024-03968-w","DOIUrl":"10.1007/s00128-024-03968-w","url":null,"abstract":"<p><p>This study investigated the distribution of Cd in soil water-stable aggregate particles of varying sizes, revealing that smaller particles have higher total Cd content as well as different forms of Cd content, with the clay particle showing a greater tendency to accumulate Cd. However, the proportion of high activity Cd is lower in clay particles, posing a lower environmental risk of Cd transformation compared to silt particles. Adsorption experiments indicated that the clay particle exhibits the strongest adsorption capacity and highest adsorption rate. Additionally, correlation and principal component analyses identified Fe-Mn oxides and organic matter as the primary influencing factors on Cd distribution characteristics, with pH playing a secondary role. These findings provide valuable insights for the remediation of heavy metal-contaminated soil.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 5","pages":"60"},"PeriodicalIF":2.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Illegal Substance Analysis and Environmental Risk Assessment in Küçük Menderes River, Important Basin of the Aegean Region. 爱琴海地区重要盆地 Küçük Menderes 河的非法物质分析与环境风险评估。
IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-19 DOI: 10.1007/s00128-024-03961-3
Duygu Yeşim Ovat, Rukiye Aslan, Melike Aydoğdu, Serap Annette Akgür

Water-based studies have come into prominence for illegal substance monitoring. There are limited studies on the detection of these substances in the surface waters as opposed to wastewater. This study aims to evaluate amphetamine, benzoylecgonine, cocaine, codeine, 3,4-methylenedioxy-N-methylamphetamine, morphine, and 11-nor-Δ9- tetrahydrocannabinol-9-carboxylic acid in the Küçük Menderes (KM) River at four different stations during three different periods and assess the environmental risks. Environmental risk assessment of psychoactive substances based on the calculation of Risk Quotients (RQ) were evaluated. RQ values for amphetamine and benzoylecgonine were < 0.01 at all sampling points during all sampling periods, indicating little risk for aquatic life. Cocaine was found as environmentally high risk (RQ > 1) based on its RQ values of 1.22 and 1.37 at KM-01 and KM-02 sampling points. This research is the first report to investigate the presence of psychoactive substances and define the environmental risks of these substances in Türkiye.

以水为基础的研究在非法物质监测方面的作用日益突出。与废水相比,在地表水中检测这些物质的研究十分有限。本研究旨在评估 Küçük Menderes (KM) 河四个不同站点在三个不同时期的安非他明、苯甲酰可待因、可卡因、可待因、3,4-亚甲二氧基-N-甲基安非他明、吗啡和 11-去甲-Δ9-四氢大麻酚-9-羧酸的含量,并评估其环境风险。根据风险商数(RQ)的计算方法,对精神活性物质的环境风险评估进行了评价。根据 KM-01 和 KM-02 采样点的 RQ 值 1.22 和 1.37,得出了苯丙胺和苯甲酰可待因的 RQ 值。这项研究是土耳其首次调查精神活性物质的存在并确定这些物质的环境风险的报告。
{"title":"Illegal Substance Analysis and Environmental Risk Assessment in Küçük Menderes River, Important Basin of the Aegean Region.","authors":"Duygu Yeşim Ovat, Rukiye Aslan, Melike Aydoğdu, Serap Annette Akgür","doi":"10.1007/s00128-024-03961-3","DOIUrl":"10.1007/s00128-024-03961-3","url":null,"abstract":"<p><p>Water-based studies have come into prominence for illegal substance monitoring. There are limited studies on the detection of these substances in the surface waters as opposed to wastewater. This study aims to evaluate amphetamine, benzoylecgonine, cocaine, codeine, 3,4-methylenedioxy-N-methylamphetamine, morphine, and 11-nor-Δ9- tetrahydrocannabinol-9-carboxylic acid in the Küçük Menderes (KM) River at four different stations during three different periods and assess the environmental risks. Environmental risk assessment of psychoactive substances based on the calculation of Risk Quotients (RQ) were evaluated. RQ values for amphetamine and benzoylecgonine were < 0.01 at all sampling points during all sampling periods, indicating little risk for aquatic life. Cocaine was found as environmentally high risk (RQ > 1) based on its RQ values of 1.22 and 1.37 at KM-01 and KM-02 sampling points. This research is the first report to investigate the presence of psychoactive substances and define the environmental risks of these substances in Türkiye.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"113 5","pages":"56"},"PeriodicalIF":2.7,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
期刊
Bulletin of Environmental Contamination and Toxicology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1