Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering最新文献

{"title":"<i>Escherichia coli</i> removal in down-flow hanging sponge reactors: insights from laboratory reactor studies.","authors":"Noriko Tomioka, Thao Tran P, Masataka Aoki, Yasuyuki Takemura, Kazuaki Syutsubo","doi":"10.1080/10934529.2024.2384205","DOIUrl":"10.1080/10934529.2024.2384205","url":null,"abstract":"<p><p>Down-flow hanging sponge (DHS) reactors, employed in domestic wastewater treatment, have demonstrated efficacy in eliminating <i>Escherichia coli</i> and other potentially pathogenic bacteria. The aim of this study was to elucidate the mechanism of removal of <i>E. coli</i> by employing a cube-shaped polyurethane sponge carrier within a compact hanging reactor. An <i>E. coli</i> removal experiment was conducted on this prepared sponge. <i>Escherichia. coli</i> level was found to decrease by more than 2 logs after passing through five nutrient-restricted DHS sponges. Conversely, a newly introduced sponge did not exhibit a comparable reduction in <i>E. coli</i> level. Furthermore, under conditions of optimal nutritional status, the reduction in <i>E. coli</i> level was limited to 0.5 logs, underscoring the crucial role of nutrient restriction in achieving effective elimination. Analysis of the sponge-associated bacterial community revealed the presence of a type VI secretion system (T6SS), a competitive mechanism observed in bacteria. This finding suggests that T6SS might play a pivotal role in contributing to the observed decline in <i>E. coli</i> level.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"295-304"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141874987","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":"Mercury distribution and contamination in the soils of the Mitrovica region, Republic of Kosovo.","authors":"Milihate Aliu, Robert Šajn, Trajče Stafilov","doi":"10.1080/10934529.2024.2331944","DOIUrl":"10.1080/10934529.2024.2331944","url":null,"abstract":"<p><p>The study was carried out to define the distribution of mercury in surface soils in the Mitrovica region, Republic of Kosovo and to assess the level and extent of contamination. A total of 156 soil samples were collected from a depth of 5 cm at each grid point of 1.4 × 1.4 km in an area of 301.5 km². The mercury content was found to be between 0.02 mg/kg and 11.16 mg/kg. The average Hg content (0.49 mg/kg) exceeded the mean content in European (0.037 mg/kg) and world (0.06 mg/kg) soils by 13.2 and 8.2 times, respectively. From the calculated enrichment factors (EF) and the geo-accumulation index (I-geo), as well as from the distribution map of Hg content, it is evident that the soils of the study area are highly contaminated with mercury, with extremely high enrichment of Hg in the soils of Zone I, which was classified as the most contaminated zone with Hg and other potentially toxic elements in the study area as well as in the towns of Zveçan and Mitrovica. The higher Hg content is of anthropogenic origin, mainly due to lead and zinc mining and metallurgical activities in the study area. The mercury levels were also found to exceed the New Dutch List target value (0.3 mg/kg) in 90 km² of the study area.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"76-86"},"PeriodicalIF":2.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140193837","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":"Moss biomonitoring of lithogenic impact on the distribution of various chemical elements in the air in the region of Mariovo, North Macedonia.","authors":"Trajče Stafilov, Robert Šajn, Danica Damčevska, Claudiu Tănăselia","doi":"10.1080/10934529.2024.2440690","DOIUrl":"10.1080/10934529.2024.2440690","url":null,"abstract":"<p><p>A study was conducted to investigate the air deposition and explore the distribution of potentially toxic elements in the Mariovo region, North Macedonia, using moss samples as biomonitors of air pollution. The distribution of 44 chemical elements was detected in 20 moss samples collected in the area. The moss samples were analyzed after microwave digestion using inductively coupled plasma - atomic emission spectrometry (ICP-AES) and inductively coupled plasma-mass spectrometry (ICP-MS). It was found that atmospheric deposition for some potentially toxic elements in the moss samples in the study area was influenced only by lithogenic origin. R-mode factor analysis was used to identify and characterize elemental associations. Three factors were separated from the group of macroelements determined by ICP-AES: Factor 1 (Cr, Fe, Ni, V, Al, Zn, Pb, and Li), F2 (Li, Sr, and Ba), and F3 (P, and K); and two associations were separated from the group of trace elements determined by ICP-MS: Factor 1 (Ga, Sc, Ti, Co, Zr, Rb, As, Cs, Ge, Y, Sn, Mo, and rare earth elements - REEs) and Factor 2 (Br, B, Cd, I, and Sb).</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"536-549"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142828742","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":"Phytotoxicity of the aqueous solutions of some dishwashing detergents for dishwashers with phosphonates and without phosphates.","authors":"Nataliia Tkachuk, Liubov Zelena","doi":"10.1080/10934529.2025.2450920","DOIUrl":"10.1080/10934529.2025.2450920","url":null,"abstract":"<p><p>The influx of insufficiently purified or untreated domestic wastewater into aquatic ecosystems raises the question of the production of environmentally friendly detergents. The purpose of this work was to investigate the toxicity of phosphonate-containing and phosphate-free dishwashing detergents for dishwashers according to the phytotest with a garden cress (<i>Lepidium sativum</i> L.). Dishwashing detergents for dishwashers (\"All in 1\"), widely available in the retail network of Ukraine, were used in concentrations the aqueous solutions from 0.005% to 10.0% for their effect on test indicators of garden cress: energy of seed germination, seed germination and biometric and morphometric indicators of seedlings, which were processed statistically. Some phytotoxic indices were determined for the tested aqueous solutions. It was established that the studied solutions of both phosphonate-containing and phosphate-free detergents are extremely and high toxic according to the calculated indices. The obtained data indicate the danger of the investigated detergents for the hydrosphere, the need to replace with a less toxic agents, in particular, based on biosurfactants.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"574-582"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142949987","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":"Analyzing the interactions between 2-ethylhexyl 4-methoxycinnamate and bovine serum albumin under coexistence and encapsulation of β-cyclodextrin.","authors":"Xinming Li, Jiali Gu, Hongrui Liu, Yang Gao","doi":"10.1080/10934529.2025.2460324","DOIUrl":"10.1080/10934529.2025.2460324","url":null,"abstract":"<p><p>2-ethylhexyl 4-methoxycinnamate (EHMC), a UV filter commonly used in sunscreen products, is also an emerging environmental pollutant that interferes with the structure and function of bovine serum albumin (BSA). A study was conducted on the interaction between EHMC and BSA when they coexist and are encapsulated within β-cyclodextrin (β-CD). Multiple spectra demonstrate, both qualitatively and quantitatively, that β-CD coexistence and encapsulation weaken the interaction between EHMC and BSA, resulting in a more difficult binding process between the two and inhibiting EHMC-induced conformational changes in BSA. Once encapsulated by β-CD, the inclusion complex (IC) was weakly bound to BSA (<i>K_b</i>=(7.63 ± 0.01)×10⁴ M^-1), and it had no significant impact on BSA's structure. Despite this, β-CD did not significantly alter EHMC's UV shielding ability.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"622-630"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143189416","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":"Evaluation of photocatalysis inactivation in indoor air purification of pathogenic microbes by using the different nanomaterials based on TiO₂ nanomaterials.","authors":"Leila Fatolahi","doi":"10.1080/10934529.2024.2352312","DOIUrl":"10.1080/10934529.2024.2352312","url":null,"abstract":"<p><p>The photocatalytic technology for indoor air disinfection has been broadly studied in the last decade. Selecting proper photocatalysts with high disinfection efficiency remains to be a challenge. By doping with the incorporation of metals, the bandgap can be narrowed while avoiding the recombination of photogenerated charge. Three photocatalysts (Ag-TiO₂, MnO₂-TiO₂, and MnS₂-TiO₂) were tested in photocatalytic sterilization process. The results revealed that Ag-TiO₂ had the best antibacterial performance. Within 20 min, the concentration of <i>Serratia marcescens</i> (the tested bacteria) decreased log number of ln 4.04 under 640 w/m² light intensity with 1000 µg/mL of Ag-TiO₂. During the process of inactivating bacteria, the cell membranes of bacterial was destructed and thus decreasing the activity of enzymes and releasing the cell contents, due to the generation of reactive oxygen species (O₂•^- and •OH) and thermal effect. Spectral regulation has the greatest impact on the sterilization efficiency of MnO₂-TiO₂, which reduces the probability of photocatalytic materials being excited.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"213-222"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140921871","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":"Regulatory compliance of PCDD/F emissions by a municipal solid waste incinerator. A case study in Sant Adrià de Besòs, Catalonia, Spain.","authors":"José L Domingo, Martí Nadal, Joaquim Rovira","doi":"10.1080/10934529.2024.2375902","DOIUrl":"10.1080/10934529.2024.2375902","url":null,"abstract":"<p><p>Despite incineration is an important emission source of toxic pollutants, such as heavy metals and polychlorinated dibenzo<i>-p-</i>dioxins and dibenzofurans (PCDD/Fs), it is still one of the most widely used methods for the management of municipal solid waste. The current paper summarizes the results of a 20-year follow-up study of the emissions of PCDD/Fs by a municipal solid waste incinerator (MSWI) in Sant Adrià de Besòs (Catalonia, Spain). Samples of ambient air, soils and herbage were periodically collected near the facility and the content of PCDD/Fs was analyzed. In the last (2017) survey, mean levels in soil were 3.60 ng WHO-TEQ/kg (range: 0.40-10.6), being considerably higher than the mean concentrations of PCDD/Fs in soil samples collected near other MSWIs in Catalonia. Moreover, air PCDD/F concentrations were even higher than those found in a previous (2014) survey, as they increased from 0.026 to 0.044 pg WHO-TEQ/m³. Ultimately, the PCDD/F exposure would be associated to a cancer risk (2.5 × 10^-6) for the population living in the surrounding area. Globally, this information indicates that the MSWI of Sant Adrià de Besòs could have had a negative impact on the environment and potentially on public health, being an example of a possible inappropriate management for years. The application of Best Available Techniques to minimize the emission of PCDD/Fs and other chemicals is critical.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"273-279"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141534568","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":"Groundwater quality assessment in upper Kabul basin and Paghman aquifer.","authors":"Mohammad Hamid Hamdard, Saif Rahman Rahmani, Zakeria Shnizai, Bjørn Kløve","doi":"10.1080/10934529.2024.2384803","DOIUrl":"10.1080/10934529.2024.2384803","url":null,"abstract":"<p><p>In Afghanistan, groundwater is widely used for drinking water, but its quality poses a health threat. This study investigates the physical, chemical, and bacteriological characteristics of groundwater in the Upper Kabul Sub-basin. Fifteen samples were collected and analyzed from different parts of the study area. The qualitative determination of parameters such as pH, Electrical conductivity (EC), Total dissolved solids (TDS), Salinity, Total hardness, Calcium, Magnesium, Sodium, Chloride, Fluoride, Sulfate, Phosphate, Potassium, Nitrite, Nitrate, Ammonia, Iron, Manganese, Copper, Aluminum, Arsenic, Total coliform, and Fecal coliform bacteria was carried out. The results were compared with WHO and ANSA standards to assess their suitability for drinking purposes. The analyzed samples indicate that physical parameters generally fall within permissible limits according to WHO and ANSA standards. However, certain wells exhibited elevated levels of chemical and bacteriological contaminants. Specifically, Magnesium concentrations exceeded the WHO guideline of 30 mg/L in all of the samples, and Calcium levels surpassed the recommended limit of 75 mg/L in 53% of the samples. Total coliform bacteria were detected in 33.33% of the samples, while fecal coliform bacteria were within the WHO and ANSA permissible limit for drinking water. The Pearson's correlation coefficient (R) suggested significant correlations between EC, TDS, and total hardness with other physical and chemical parameters. For instance, EC showed a strong positive correlation (<i>R</i> = 1.00) with TDS, EC and Salinity (<i>R</i> = 0.981), EC and Fluoride (<i>R</i> = 0.838) EC and Sulfate (<i>R</i> = 0.853), TDS and Salinity (<i>R</i> = 0. 981), TDS and Fluoride (<i>R</i> = 0.838), TDS and Sulfate (<i>R</i> = 0.853). The findings demonstrate that correlation coefficient analyses of water quality parameters provide a valuable means for monitoring water quality. These results offer critical insights for ensuring a safe water supply in the region.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"321-333"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142000034","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":"Study on adsorption behavior of humic acid on aluminum in <i>Enteromorpha prolifera</i>.","authors":"Yuke Mo, Liping Zhou, Shiqian Fu, Huicheng Yang, Bangchu Lin, Jinjie Zhang, Yongjiang Lou, Yongyong Li","doi":"10.1080/10934529.2024.2396728","DOIUrl":"10.1080/10934529.2024.2396728","url":null,"abstract":"<p><p>High level of aluminum content in <i>Enteromorpha prolifera</i> posed a growing threat to both its growth and human health. This study focused on exploring the factors, impacts, and process of removing aluminum from <i>Enteromorpha prolifera</i> using humic acid. The results showed that under experimental conditions of 0.0330 g·L^-1 humic acid concentration, pH 3.80, 34 °C, and a duration of 40 min, the removal rate was up to 80.18%. The levels of major flavor components, proteins, and amino acids in <i>Enteromorpha prolifera</i> increased significantly after treatment, while polysaccharides and trace elements like calcium and magnesium decreased significantly. Infrared spectroscopy demonstrated that the main functional groups involved in binding with Al³⁺ during humic acid adsorption were hydroxyl, carboxyl, phenol, and other oxygen-containing groups. The adsorption process of Al³⁺ by humic acid was a spontaneous phenomenon divided into three key stages: fast adsorption, slow adsorption, and adsorption equilibrium, which resulted from both physical and chemical adsorption effects. This study provided a safe and efficient method in algae metal removal.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"342-357"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142107963","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":"Application of supervised learning models for enhanced lead (II) removal from wastewater via modified cellulose nanocrystals (CNCs).","authors":"Linda L Sibali, Banza M Jean Claude","doi":"10.1080/10934529.2025.2452722","DOIUrl":"10.1080/10934529.2025.2452722","url":null,"abstract":"<p><p>Heavy metal ions are acknowledged to impact the environment and human health adversely. CNCs are effective materials for removing heavy metal ions in industrial applications and process innovations since they can be used in static and dynamic adsorption processes. Cost-effective, uncomplicated water treatment technologies must be developed using biodegradable polymers, namely, modified cellulose nanocrystals. Adaptive neuro-fuzzy inference systems (ANFISs) and artificial neural networks (ANNs) were used to evaluate and examine the efficacy of modified cellulose nanocrystals in removing lead(II) from wastewater. The research indicated that the maximum adsorption capacity attained was 260 mg/g at a pH of 6, an initial concentration of 200 mg/L, a contact duration of 300 min, and a 5 g/200 mL dose. Influence of four input variables on the Pb(II) adsorption capacity: The experimental data were juxtaposed with the outcomes from ANN and ANFIS to ascertain the pH, contact time, starting concentration, and dose. The correlations of 0.9916 for the created artificial neural network (ANN) and 0.9953 for the adaptive neuro-fuzzy inference system ANFIS indicate that the study data may be predicted with precision. ANFIS had a Pearson's chi-square value of 0.638, surpassing the ANN's score of 0.979.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"583-592"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143005798","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}