Wanfu Zhao, Yinxian Song, Wei Li, Yubo Wen, Junfeng Ji
{"title":"Health Risk of Heavy Metal and Implication for Ecological Threat in Soils Weathered from the Black Shale.","authors":"Wanfu Zhao, Yinxian Song, Wei Li, Yubo Wen, Junfeng Ji","doi":"10.1007/s00128-024-03989-5","DOIUrl":"10.1007/s00128-024-03989-5","url":null,"abstract":"<p><p>Heavy metals were analyzed in rhizosphere soils and rice grains collected from typical black shale areas. The concentrations of As, Cd, Cu, and Zn in the rhizosphere soil exceeded the current soil environmental quality standards. Cd exhibited the highest bioaccumulation capacity, with 45% of rice grains exceeding food safety limit. Structural equation modeling (SEM) revealed that soil organic matter indicated that 34.79% of rice Cd accumulation and approximately 10%-25% of other metals were inhibited. Multiple regression modelling showed that in areas with high geological background of black shales, the screening and intervention values for soil Cd were adjusted to 0.24 mg kg<sup>-1</sup> and 0.42 mg kg<sup>-1</sup> for pH ≤ 5.5 and 0.27 mg kg<sup>-1</sup> and 1.66 mg kg<sup>-1</sup> for pH 5.5 - 6.5 respectively. Primary exposure pathways for non-carcinogenic risks were identified as food ingestion and skin contact. This study provides fundamental information for land use application and development in region with high geological background.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"16"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998120","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}
Xin Wen, Qiu Jin, Jie Xu, Wei Yang, Huazu Liu, Chaowei Yuan, Shenhua Qian, Wei Li
{"title":"Synchronicity Between the Rates of Reaeration and Pollutants Degradation During Self-Purification in a Large River.","authors":"Xin Wen, Qiu Jin, Jie Xu, Wei Yang, Huazu Liu, Chaowei Yuan, Shenhua Qian, Wei Li","doi":"10.1007/s00128-024-03998-4","DOIUrl":"10.1007/s00128-024-03998-4","url":null,"abstract":"<p><p>The pollutants after were discharged into the water can gradually degrade through the self-purification. The oxygen consumption and pollutant degradation rates characterize the self-purification of small and medium-sized streams, while the dynamics of the two characteristics for large rivers has not been reported yet. The in-situ investigation for 297 sites in the 1700 km stream of the Yangtze River was conducted. The oxygen consumption rate was 0.003d<sup>- 1</sup>, and the degradation rate of organic pollutants was greater than that of inorganics. The degradation of anion surfactant was the fastest, while the degradation of TN was the slowest, with rates of 0.043 and 0.001 d<sup>- 1</sup>, respectively. The oxygen consumption rate was negatively correlated with the degradation rate of COD, anion surfactant, and TP, indicating the synchronicity between reaeration and degradation during the self-purification. This study highlighted the role of synchronicity in modelling of water quality and estimation of environmental capacity for large rivers.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"20"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998164","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}
Zhihan Cao, Changhae Kim, Jinyoung Song, Zhihua Li, Jinho Jung
{"title":"Distinct Effect of Benzophenone-3 Additive Leaching from Polyethylene Microplastics on Daphnia magna Population Dynamics.","authors":"Zhihan Cao, Changhae Kim, Jinyoung Song, Zhihua Li, Jinho Jung","doi":"10.1007/s00128-024-03995-7","DOIUrl":"10.1007/s00128-024-03995-7","url":null,"abstract":"<p><p>The adverse effect of chemical additives leaching from microplastics (MPs) on Daphnia magna populations is not fully understood. In this study, D. magna populations were exposed to polyethylene (PE) MP fragments (5.0 mg/L), PE MP fragments containing the ultraviolet stabilizer benzophenone-3 (MP/BP-3 fragments, 5.0 mg/L), and BP-3 leachate (79 ± 10 µg/L) from PE MP/BP-3 fragments. The test duration was 42 days to observe the population dynamics of D. magna. BP-3 leachate delayed the development and somatic growth of D. magna, resulting in a significantly lower (p < 0.05) population size (number of organisms) compared with the control group. For instance, the population size was 7.7 ± 8.1 and 115 ± 3.5 (n = 3), respectively, at 18 d. However, both MP and MP/BP-3 fragments did not significantly decrease (p > 0.05) the population size of D. magna until day 18. These findings suggest that chemical additive leachates from MPs may have a distinct adverse effect on aquatic organisms, requiring further comprehensive investigation.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"18"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998108","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}
Linglong Chu, Wenli Zheng, Xiaoxiang Zhao, Xinshan Song
{"title":"Effects of Different Ionic Liquids on Microbial Growth and Microbial Communities' Structure of Soil.","authors":"Linglong Chu, Wenli Zheng, Xiaoxiang Zhao, Xinshan Song","doi":"10.1007/s00128-024-03997-5","DOIUrl":"10.1007/s00128-024-03997-5","url":null,"abstract":"<p><p>Ionic liquids (ILs) are widely used \"green solvent\" as they have a low vapor pressure and can replace volatile solvents in industry. However, ILs are difficult to biodegrade and are potentially harmful to the environment. This study, herein, investigated the toxicity of three imidazole ILs ([C<sub>8</sub>MIM]Cl, [C<sub>8</sub>MIM]Br, and [C<sub>8</sub>DMIM]Br) towards soil microorganisms. The results showed that the ILs inhibited the growth of soil culturable microorganisms and affected the activity of soil enzyme. In addition, microbial communities' species and abundance in soil were altered. Finally, functional prediction analysis revealed that ILs mainly affected the carbohydrate metabolism and amino acid metabolic processes of the microorganisms. ILs with single methyl substituent had a more pronounced effect than those with double methyl substituents. The study indicates that the use of ILs with double methyl substituents is more environmentally safe, and that the toxicity of ILs should be taken into account in industrial production for the design and production of more environmentally safe types, such as ILs with double methyl substituents.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"19"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998109","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}
Chao Wang, Jiaqi Shi, Kun Liu, Lihua Bai, Changsheng Qu
{"title":"Mechanistic Insights into the Effects of Aged Polystyrene Nanoplastics on the Toxicity of Cadmium to Triticum Aestivum.","authors":"Chao Wang, Jiaqi Shi, Kun Liu, Lihua Bai, Changsheng Qu","doi":"10.1007/s00128-024-04004-7","DOIUrl":"10.1007/s00128-024-04004-7","url":null,"abstract":"<p><p>The widespread concern over nanoplastics (NPs) has prompted extensive research into their environmental impact. Concurrently, the study examined the combined toxicity of PS NPs and cadmium (Cd) on wheat. As indicated by the results of in situ Micro-ATR/FTIR, the aging process of PS NPs (50 nm) led to an increase in carbonyl and hydroxyl groups on their surface, enhancing hydrophilicity and consequently, the adsorption capacity for Cd. The toxicity assessment, measured by the impact on wheat leaf and root biomass after 7 d culture, revealed that pristine PS NPs with concentrations of 0-5000 mg·kg⁻¹ had a negligible effect on Cd toxicity to wheat leaves. However, aged PS NPs significantly intensified the inhibitory effect on wheat root growth, particularly at low Cd concentrations (≤ 5.0 mg·kg⁻¹). This synergistic toxicity between aged PS NPs and Cd is suspected to stem from the increased bioaccumulation of Cd in wheat, likely facilitated by the aged NPs. Thus, the study shed light on the aging behavior of soil surface NPs and its implications for environmental risk assessment.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"25"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998124","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}
{"title":"Potential Degradation of Low- and High-Density Polyethylene Films by Ochrobactrum intermedium SA1 from Sewage Sludge.","authors":"Sakshi Sharma, Nupur Mathur, Anuradha Singh, Shruti Ahlawat","doi":"10.1007/s00128-024-04001-w","DOIUrl":"10.1007/s00128-024-04001-w","url":null,"abstract":"<p><p>Accumulation of plastic waste is an alarming environmental concern across globe. For which, microbial degradation offers an efficient ecofriendly solution. Thus, the present study focuses on the exploration of new bacterium that can grow on and utilize polyethylene. Ochrobactrum intermedium SA1 isolated from sewage sludge (Jaipur, India) was characterized and evaluated for growth on both thermally pre-treated and untreated low-density polyethylene (LDPE) and high-density polyethylene (HDPE) films in synthetic medium at 35 °C and pH 6.5 for 30 days. The bacterium was grown successfully on the polyethylene films such that 3.458 ± 0.373% and 1.586 ± 0.142% gravimetric weight loss was observed for LDPE and HDPE films, respectively. Further, LDPE and HDPE films showed highest decrease in tensile strength of 126.67% and 75.62%, respectively which was corelated with atomic force microscopy analysis depicting the increase in surface roughness after incubation with the bacterial isolate. Therefore, we believe that more detailed studies will establish Ochrobactrum intermedium SA1 as a potential tool in clearing the global burden of plastics.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"23"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998163","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}
Jassiara da S Pessoa, Ana Claudia O de Almeida, Lais F Dos Santos, Therezinha M N de Oliveira, Cesar C Martins, William G Matias, Silvia P Melegari
{"title":"Optical Insight: Spectrophotometry as a Tool to Quantify Cell Density of Green Microalgae in Suspension, with Emphasis on Growing Conditions and Toxicological Evaluations.","authors":"Jassiara da S Pessoa, Ana Claudia O de Almeida, Lais F Dos Santos, Therezinha M N de Oliveira, Cesar C Martins, William G Matias, Silvia P Melegari","doi":"10.1007/s00128-024-03999-3","DOIUrl":"10.1007/s00128-024-03999-3","url":null,"abstract":"<p><p>Microalgae are often used in different industrial sectors and can be used as indicators of aquatic environmental health. An essential step for cultivating microalgae is assessing the cell density, which is traditionally performed through cell counting by optical microscopy (OM). However, this method has limitations, mainly in terms of runtime and low reproducibility. Assessing the optical density (OD) by spectrophotometry was investigated as an affordable alternative. The OD of the green microalgae Desmodesmus subspicatus and Tetraselmis sp. was detected at 680 nm. The correlation between the cell density and OD was suitable for both microalgae and the accuracy was comparable to traditional OM counting. In toxicological tests, the OD technique allowed the monitoring of microalgal growth in the presence of the chemicals K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>, KCl and sodium dodecyl sulfate. This study sheds some light on this well-known technique, which is an important contribution since few articles have explored its potentialities and fragilities.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"21"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998126","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}
{"title":"An Over 30-Year Analysis of Heavy Metal Deposition in Daya Bay Sediments.","authors":"Min-Jie Hu, Yayuan Xiao, Li Zhang, Xun Wang","doi":"10.1007/s00128-024-04003-8","DOIUrl":"10.1007/s00128-024-04003-8","url":null,"abstract":"<p><p>Sediment cores were collected from the nearshore to bay mouth region in Daya Bay, aiming to describe the historical patterns of heavy metals deposition in the sediment. During the last 40 years, the heavy metals exhibited significant different deposition behaviors in the sediment, in which As, Zn, Cr were more enriched and contributed to metals pollution in this area. Moreover, heavy metals deposition exhibited completely opposite behaviors from the nearshore to bay mouth region. An increasing of pollution level and ecological risk was observed in the nearshore, whereas a decreasing trend was detected in the bay mouth. Principal component analysis suggested that heavy metals were possibly derived from anthropogenic activities in the nearshore, whereas natural sources were the main sources in bay mouth. The results indicated the urgency of implementing efficient measures to mitigate heavy metals contamination in the adjacent sea.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"24"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998104","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}
{"title":"Insights into the Spectral Characteristics and Sources of Dissolved Organic Matter in a Water Supply Reservoir.","authors":"Yong Wei, Haibin Li, Guijian Liu, Xingming Wang, Shiwen Miao","doi":"10.1007/s00128-024-03994-8","DOIUrl":"10.1007/s00128-024-03994-8","url":null,"abstract":"<p><p>This study focuses on the composition and sources of dissolved organic matter (DOM) in the Fancun Reservoir, located in Ningguo City, Anhui Province, China. The investigation was conducted by analyzing the spectral characteristics of DOM using UV-Vis absorption spectra and fluorescence spectroscopy. The humic substances were dominated by fulvic acid, with an average DOM concentration of 30.54 mg/L at the reservoir outlet primarily originating from internal release. Fluorescence indices suggested a strong autochthonous contribution of DOM and weak humus characteristics. Three DOM components were identified through parallel factor analysis. Aromatic protein substances in DOM ranged from 0.52 to 4.49%, suggesting minimal anthropogenic influence. The average fluorescence lifetime increased from 0.81 ns at the reservoir entrance to 0.91 ns at the outlet, with an average relative quantum yield of 4.99%, implying stabilization throughout the reservoir. Correlation analysis indicated positive correlations (P < 0.001) between absorption coefficients at specific wavelengths. Principal component analysis explained 67.7% of the total variance, indicating highly common DOM sources across sites.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"17"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998122","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}
María Florencia Gonzalez, Iohanna Filippi, María Valeria Amé
{"title":"Optimized Metolachlor, Epoxiconazole and Chlorantraniliprole Mixture Analysis for Aquatic Toxicity Testing Using UHPLC-MS/MS.","authors":"María Florencia Gonzalez, Iohanna Filippi, María Valeria Amé","doi":"10.1007/s00128-024-04000-x","DOIUrl":"10.1007/s00128-024-04000-x","url":null,"abstract":"<p><p>The co-occurrence of pesticides in aquatic ecosystems highlights the need for studies investigating their potential toxicity as mixtures to the aquatic biota. Well-designed studies are essential to assess the presence and toxicity of relevant pesticide mixtures, particularly those such as the chloroacetamide herbicide metolachlor (MET), the triazole fungicide epoxiconazole (EP) and the diamide anthranilic insecticide chlorantraniliprole (CAP), which have not been previously tested, and whose co-occurrence is possible in waters close to cultivated areas. A solid phase extraction ultra-performance liquid chromatography-tandem quadrupole mass spectrometry method was developed to quantify equivalent toxicity concentrations for CAP, EP, and MET in artificial freshwater during acute toxicity tests. Compounds were separated within 1.30 min, showing linearity over the calibration ranges of 2-150 µgL<sup>-1</sup> for CAP and 50-3000 µgL<sup>-1</sup> for EP and MET. Detection and quantification limits were (µgL<sup>-1</sup>): 0.001 and 0.0037 MET; 0.000038 and 0.00013 EP; and 0.002 and 0.007 CAP, respectively. Precision and accuracy met intra-assay validation requirements. Recoveries were tested at low and high concentration levels and were between 77% and 120%. Additionally, matrix effect showed different behavior among compounds. In an acute toxicity test proposed, MET and EP remained stable (24 h), while CAP decayed 27% ± 4% in the same period. The method proved effective despite different concentrations in toxicity testing design.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 2","pages":"22"},"PeriodicalIF":2.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998162","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}