Emerging Contaminants最新文献

{"title":"A comprehensive review on environmental and human health impacts of chemical pesticide usage","authors":"","doi":"10.1016/j.emcon.2024.100410","DOIUrl":"10.1016/j.emcon.2024.100410","url":null,"abstract":"<div><p>This review critically examines the multifaceted impacts of chemical pesticides on environmental ecosystems and human health, highlighting the urgent need for sustainable pest management practices. The widespread use of pesticides, such as organochlorine compounds (e.g., DDT, endrin) known for their persistence and bioaccumulation, poses significant risks to biodiversity, water quality, and food safety. By accumulating in the food chain, these substances threaten higher trophic levels and amplify the potential for adverse health outcomes, including acute poisoning, cancer, and neurological disorders. Specific examples such as glyphosate and atrazine illustrate the pervasive nature of pesticide contamination in various environments. Key findings include the association of pesticide exposure with increased risks of non-Hodgkin lymphoma and Parkinson's disease, and the development of antibiotic resistance in microbial communities. The review discusses potential remediation methods, including physicochemical techniques like photodegradation and advanced oxidation processes, as well as bioremediation strategies involving microbial degradation. Photodegradation rates are influenced by environmental factors such as sunlight intensity, soil properties, and organic matter content. Bioremediation using specific microbial consortia has shown promise in degrading persistent pesticides, enhancing soil recovery. Emphasizing the importance of integrated pest management (IPM), enhanced regulatory frameworks, and user education, this review advocates for a strategic shift towards practices that minimize environmental harm and safeguard human health. Implementing these measures can significantly contribute to the advancement of sustainable agriculture by reducing pesticide reliance and promoting ecological balance.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024001112/pdfft?md5=70bf5c24ce40066d8914158a898a1d66&pid=1-s2.0-S2405665024001112-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142088281","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}

{"title":"A systematic review of occurrence and concentrations of selected phthalic acid esters in waste processing and management facilities: Challenges and the future research perspectives","authors":"","doi":"10.1016/j.emcon.2024.100407","DOIUrl":"10.1016/j.emcon.2024.100407","url":null,"abstract":"<div><p>Municipal waste management and processing facilities produce various pollutants, including phthalic acid esters (PAEs), which are released into the environment depending on waste components, process type, and time elapsed. PAEs are widely used in industries, particularly in plastics, but their mismanagement poses risks to human health and the environment. The review aims to assess the levels of PAEs in different units of waste processing and management facilities and their health effects. This systematic review collected and analyzed studies investigating the levels of selected PAEs (DMP, DEP, DBP, BBP, DEHP, and DNOP) in waste processing and management facilities. The databases of Scopus, PubMed, and Web of Science were searched from the inception of the studies up to Oct 14, 2022. Studies were screened, duplicates removed, and relevant studies selected independently by two reviewers. Data from the final articles were extracted according to the study's objectives. A total of 26 studies were analyzed to assess the levels of PAEs, focusing on landfill leachate, soil, air, surface, and groundwater. The findings revealed that approximately 37 % of the studies were conducted in landfills, with DEHP having the highest concentration of PAEs. Moreover, all reviewed studies reported DEHP as the most prevalent PAE in leachate. Around 23 % of the studies were conducted on air and soil media, with DEHP, DBP, and DEP identified as the primary phthalates, comprising over 94 % of all the studied phthalates.</p><p>The levels of PAEs in waste management facilities were often high, posing potential health risks to workers. Therefore, reducing plastic use and subsequently reducing waste generation should be considered as the priority action. Also, preventive measures such as dust control, personal protective equipment, and using anti-leak materials and membranes in waste processing and management sites should be implemented to reduce environmental pollution and human exposure.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024001082/pdfft?md5=2ab8234e43654185c1a38c4c43b430e7&pid=1-s2.0-S2405665024001082-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142077258","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}

{"title":"Toxic risk assessment of selected metals in infant formula milk commercially available in Lebanon: A novel approach based on feeding parameters versus toxicity","authors":"","doi":"10.1016/j.emcon.2024.100409","DOIUrl":"10.1016/j.emcon.2024.100409","url":null,"abstract":"<div><p>Infant formula milk (IFM) is increasingly utilized as a substitute for natural breastfeeding despite the fact that breast milk has been always recognized as the optimal nourishment method. While IFMs are fortified with essential nutrients that are crucial for proper growth, they can also harbor non-essential toxic metal contaminants from various sources during the production process. Given the heightened vulnerability of newborns to such contaminants, it is imperative to thoroughly analyze, evaluate, and minimize the toxicity associated with the consumption of such IFMs. However, classical approaches to date, have been always adopted for assessing such risks by finding first the analytical concentration of metals in the IFMs followed by multiplying it by the average daily powder intake (ADI) then dividing by the average infant weight. The outcome is then compared to an established standard such a PTWI to assess the extent of toxicity. The drawback with such studies is the use of a fixed ADI for all samples as if all samples have the same and exact preparation directions while using somewhat different infant masses.</p><p>Accordingly, this study aims at assessing the toxic risk amongst newborns from IFM consumption through the identification and application of various highly important and toxicity-contributing parameters from each IFM and its directions of preparation label separately which are discussed here for the first time while providing comparisons between the classical approach versus our new approach to highlight its importance.</p><p>Seventy-three IFMs (0–6 months) were analyzed for lead (Pb), cadmium (Cd), arsenic (As), and aluminum (Al) levels and unlike previous studies, this work incorporated various feeding parameters from each IFM for calculating the intakes thus, revealing potential toxicity risks even in IFMs that are considered safe by the classical approach. Metal contamination was significant, with 97.3 % of samples containing detectable Pb, 41.1 % Cd, 16.4 % As, and 93.2 % Al while highlighting Pb in exceeding its maximum allowable level (MAL). This novel approach, which considers new diverse feeding schedules/parameters that are ironically suggested by manufacturers that have been previously overlooked elsewhere, emphasized IFMs' potential as sources of heightened metal toxicity in comparison to classical approaches. Results highlighted Pb and Al as major concerns, with As and Cd of lesser concern. Findings also emphasized the importance of such new parameters for safeguarding newborn health and should be payed attention to by caregivers. The study strongly and highly recommends adherence to <em>minimum feeding schedules (MFS)</em> and proper scooping techniques to reduce newborn exposure to toxic metals. It also suggests continuous monitoring and stricter regulations by health authorities at the production level of such products so as to provide a safer commodity in the first degree and to also provide better and so","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024001100/pdfft?md5=e6c4d8eb4dc2982e8131219de60f85e4&pid=1-s2.0-S2405665024001100-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142040057","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}

{"title":"Biodegradation of polypropylene microplastics by Bacillus pasteurii isolated from a gold mine tailing","authors":"","doi":"10.1016/j.emcon.2024.100397","DOIUrl":"10.1016/j.emcon.2024.100397","url":null,"abstract":"<div><p>Microplastics (MPs) are present throughout the environment, and due to their nature, they are extremely difficult to decompose. Reportedly, microorganisms play an important role in degrading and decomposing MPs. <em>Bacillus pasteurii</em> can degrade various complex organic matter, including MPs, which are a class of polymeric organic compounds. This study investigated the degradation effect of <em>B. pasteurii</em> on polypropylene MPs (PP-MPs) in soil. <em>B. pasteurii</em> was extracted from gold mine tailings. Herein, three experimental groups were established—a blank control treatment group, a group with bacteria without Ca²⁺ added (T2 group), and a group with bacteria supplemented with Ca²⁺ (T3 group)—for a 30-day indoor simulation of MP degradation in MP-treated soil. The results showed that the total mass change rate of the PP-MPs in the T2 group was 20.95 %, and grooves and holes appeared on the PP-MP surfaces. The total mass change rate of the PP-MPs in the T3 group was 23.22 %, and abundant fissures and pits appeared on the PP-MP surfaces. Additionally, new dominant phyla, such as <em>Bacteroidetes</em> and <em>Firmicutes</em>, appeared after bacterial addition. The relative abundance of several common soil genera, such as <em>Bacillus</em>, <em>Brevundimonas</em>, <em>Flavobacterium</em>, and <em>Arthrobacter</em>, and genera capable of breaking down complex compounds increased after <em>B. pasteurii</em> addition. The soil microbial community diversity improved, with the distribution of each species being relatively uniform. These findings indicated that the <em>B. pasteurii</em> strain can be used to degrade PP-MPs. Additionally, the addition of Ca²⁺ generated microbially induced calcium carbonate precipitation, which further improved the degradation of MPs. This study provides theoretical support for studying the degradation mechanism of PP-MPs.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000982/pdfft?md5=4cc1dc5870e24b4c6adb269dd16e1faa&pid=1-s2.0-S2405665024000982-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141953966","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}

{"title":"Affinity of endosulfan and HCB with human serum albumin affects serum concentrations in a general population","authors":"","doi":"10.1016/j.emcon.2024.100392","DOIUrl":"10.1016/j.emcon.2024.100392","url":null,"abstract":"<div><p>Endosulfan and hexachlorobenzene (HCB) were previously widely used organochlorine pesticides. Much attention has been paid to trends in human exposure to endosulfan and HCB and to the transport and distribution of endosulfan and HCB within the body. We determined endosulfan I, endosulfan II, and HCB concentrations in serum samples collected from the general population of Wuxi in Jiangsu Province (China) between 2012 and 2016. The endosulfan concentrations varied little throughout the study period, but the HCB concentrations increased. The HCB concentrations were significantly higher in serum from overweight people and smokers than in serum from normal weight people (p = 0.028) and non-smokers (p = 0.011), respectively. HCB binds to human serum albumin (HSA) and can form halogen bonds to CYS-461 and ARG-484 at site II (subdomain IIIA). Fatty acids and nicotine increase the affinity between HCB and HSA, explaining the higher HCB concentrations in serum from overweight people and smokers than normal weight people and non-smokers, respectively.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000933/pdfft?md5=a7174adf7f8728564e0fd89ef6338330&pid=1-s2.0-S2405665024000933-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141952485","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}

{"title":"Perfluorononanoic acid as a risk factor for metabolic syndrome: A case-control study","authors":"","doi":"10.1016/j.emcon.2024.100396","DOIUrl":"10.1016/j.emcon.2024.100396","url":null,"abstract":"<div><h3>Background</h3><p>Current epidemiological results from studies linking per- and poly-fluoroalkyl substances (PFASs) to metabolic syndrome (MetS) remain inconsistent.</p></div><div><h3>Objectives</h3><p>We aim to investigate the association between serum PFASs and MetS using data from the National Health and Nutrition Examination Survey in the United States (US NHANES) 2017–2018.</p></div><div><h3>Methods</h3><p>The Bayesian kernel regression (BKMR) and weighted quantiles sum regression (WQS) models were used to assess the association of serum PFASs with MetS and calculate the weight of each substance. Stratification analysis and sensitivity analysis were used to study the effect modification and the robustness of the study results, respectively.</p></div><div><h3>Results</h3><p>All statistical models used in this study consistently indicated that serum perfluorononanoic acid (PFNA) was positively associated with an increased risk of MetS. The BKMR model revealed that serum PFASs mixtures had a combined toxic effect on MetS and its components, and serum PFNA could contribute the most to driving the overall association. Specifically, the combined exposure of PFASs was significantly associated with lipids (LP), among which serum PFNA contributed significantly to high density lipoprotein cholesterol (HDL-C), and serum perfluorodecanoate (PFDeA) was significantly positively correlated with triglyceride (TG). Besides, a nonlinear dose-response relationship between PFASs and MetS was observed. The final stratified analysis results underscore the critical importance of maintaining a healthy lifestyle, as obesity, smoking, and consume carryout/delivered foods exhibit effect modification on the association between PFASs and MetS.</p></div><div><h3>Conclusion</h3><p>Our findings point to PFNA as a risk factor for metabolic diseases, particularly affecting lipids.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000970/pdfft?md5=3e8c6b8d935d9e395871cd9e2b2755e7&pid=1-s2.0-S2405665024000970-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141960992","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}

{"title":"Parasitoid of Aphis gossypii, Binodoxys communis Gahan exhibits metabolic changes in symbiotic bacterial community upon exposure of insecticides","authors":"","doi":"10.1016/j.emcon.2024.100395","DOIUrl":"10.1016/j.emcon.2024.100395","url":null,"abstract":"<div><p>Insecticides play a crucial role in safeguarding crops from pest. However, prior to their release, it is essential to assess the efficacy and potential effects of these protectants. Flupyradifurone (FBF) and sulfoxaflor (SFX), two insecticides commonly used to control aphids, have been found to exert negative effects on the growth and development of <em>Binodoxys communis</em> Gahan, a beneficial parasitic wasp that targets aphids. However, it remains unknown if FBF and SFX influence the symbiotic bacteria residing within <em>B. communis</em>. In this study, 16SrRNA sequencing was utilized to assess the populations of <em>B. communis</em> symbionts exposed to sublethal concentrations (LC₁₀ and LC₂₅) of FBF and SFX. The control and treatment groups exhibited similar bacterial community structures, with <em>Bacteroidota</em> identified as the dominant phylum in each. After exposure to FBF and SFX, the diversity and richness of symbionts <em>(Firmicutes, Bacteroidota,</em> and <em>Actinobacteriota)</em> in <em>B. communis</em> changed notably. The two different insecticides and exposure durations exerted distinct effects on the microbial community. For instance, SFX stress resulted in a decrease in <em>Akkermansia</em> and an increase in <em>Escherichia Shigella</em> 1h after exposure, with both returning to baseline levels after 3d. In contrast, FBF exposure caused a reduction in <em>Akkermansia</em> presence after 1h, which persisted even after 3d. This study represents the first assessment of the effects of FBF and SFX exposure on symbiotic bacteria in <em>B. communis</em>, expanding our understanding of how insecticides influence natural enemies and their symbiotic bacterial relationships. This study provides theoretical guidance for field applications of FBF and SFX, as well as a reasonable basis for exploring chemical resistance conferred by symbiotic bacteria.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000969/pdfft?md5=2d976570f4ec3733b9e48917a864b4f4&pid=1-s2.0-S2405665024000969-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141952934","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}

{"title":"Biochemical investigation of association of arsenic exposed polymorphic variants and disease susceptibility","authors":"","doi":"10.1016/j.emcon.2024.100393","DOIUrl":"10.1016/j.emcon.2024.100393","url":null,"abstract":"<div><p>Our study aimed to establish the association of polymorphic variants and disease susceptibility in arsenic-induced metabolic disorders raised due to the variability of arsenic methylation in human population exposed to arsenic in drinking water. Water samples were systematically collected from various regions of Faisalabad, Pakistan, and subjected to arsenic quantification through inductively coupled plasma emission spectrophotometry (ICP-OES). The groundwater exhibited significantly elevated arsenic concentrations (68.18 ± 21.28 μg/L) in comparison to both water and sanitation agency Faisalabad (WASA)-supplied water (9.81 ± 1.2 μg/L) and locally filtered water (8.12 ± 1.42 μg/L), as determined by one-way ANOVA followed by Bonferroni's post-test at <em>P</em> &lt; 0.05. An association was established between arsenic concentration and the incidence of disease, such as diabetes mellitus. A cohort of 120 participants residing in six areas of District Faisalabad was recruited. Urine and blood specimens were collected for analysis. Urine samples underwent ICP-MS analysis in helium collision mode, utilizing germanium as an internal standard. Blood samples were collected for biomarker assessments, including HbA1c, BUN, creatinine, CRP, ALT, AST, GSH, SOD, and MDA, to investigate the evidence of diabetes mellitus. Urinary arsenic concentrations were found to be considerably higher (<em>P</em> &lt; 0.05) in about 22.50 % of the participants, with a mean value of 68.43 ± 16.73 ppb. Biomarker analysis in these participants revealed mean values for BUN (37.19 ± 2.87 mg/dL), creatinine (2.58 ± 0.18 mg/dL), IL-6 (11.35 ± 6.98 pg/mL), CRP (1.90 ± 0.26 mg/dL), MDA (3.70 ± 0.18 nmol/mL), ALT (40.27 ± 5.41 U/L), and AST (38.92 ± 4.72 U/L). Furthermore, the gender-based analysis indicated the higher levels of DMA, MMA, TAs, and TiAs in males compared to females when urine samples were analyzed with HPLC-ICP-MS. Participants with the positive genotype of GSTM exhibited significantly higher levels of TAs, and TiAs concentration in their urine than those with the null genotype of GSTM. Moreover, participants with positive genotypes for GSTT1 and GSTM1 demonstrated elevated levels of DMA in their urine compared to those with genotypes of GSTT1 (−) and GSTM1 (−), although this difference did not attain statistical significance. Participants with the genotype of GSTT1 (+) displayed a considerably higher secondary methylation index than those with genotype of GSTT1 (−). MMA and DMA levels were found to be correlated with the genotypes of GSTT1 and GSTM1 and the amounts of TAs in urine. In conclusion, our findings suggest a linkage between arsenic methylation, particularly levels of DMA and SMI, and GSTT1 and GSTM1 polymorphisms.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000945/pdfft?md5=bdd2304a320d732c5a04ad7ac646ce67&pid=1-s2.0-S2405665024000945-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141845979","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}

{"title":"Co-occurrence of microplastics and heavy metals in a freshwater lake system in Indian Himalaya: Distribution and influencing factors","authors":"","doi":"10.1016/j.emcon.2024.100394","DOIUrl":"10.1016/j.emcon.2024.100394","url":null,"abstract":"<div><p>Microplastic (MP) contamination in freshwater systems is a prevalent and persistent environmental issue, yet their occurrence and distribution remain poorly constrained. The present study examines the MPs abundance in sediment and water samples and factors controlling their distribution in the Manasbal Lake, north-western (NW) Himalaya. Additionally, the study investigates the relationship between heavy metals and the distribution of MPs in sediment, as well as their potential interactions. The MPs counts in lake surface sediment and water samples varied from 840 nkg⁻¹ to 4020 nkg⁻¹ and 13 nL⁻¹ to 89 nL⁻¹, respectively. The MPs distribution in Manasbal Lake exhibited spatial heterogeneity, with the greatest abundance observed in the eastern and northeastern areas near lake inlets. Grain size and land use appear to collectively modulate the variability of MPs in Manasbal Lake sediments. Five main MPs types were identified: beads/pellets, fragments, fibres, foams, and films, with beads being the predominant type. Polypropylene, polyethylene, and polystyrene are the dominant constituents of the observed MPs, with domestic sewage suggested as the predominant source for their abundance in the lake. Furthermore, the contamination factor for heavy metals indicated a high level of lead contamination in surface sediments, while copper and cobalt showed moderate contamination near the lake inlet. The SEM-EDS analysis illustrated the presence of toxic elements such as Hg, Zn, Pb, Cr, Cd, Ni, and Cu to the surface of MPs. This study expands the baseline characterization of MPs in freshwater systems and enhances our understanding of the potential sources and factors influencing MP distribution.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000957/pdfft?md5=db40ceae065c50f9a44da8330f7db7d3&pid=1-s2.0-S2405665024000957-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141841735","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}

{"title":"Current status and risk assessment of perfluoroalkyl acids in surface water and sediments of the Yellow River in Shandong, China","authors":"","doi":"10.1016/j.emcon.2024.100391","DOIUrl":"10.1016/j.emcon.2024.100391","url":null,"abstract":"<div><p>The Yellow River is the main source of water for urban and rural area and agricultural irrigation in northern China. Herein, the distribution and risk assessment of perfluoroalkyl acids (PFAAs) were investigated from the Yellow River in Shandong Province, China. The total concentration of PFAAs (∑PFAAs) in surface water and sediments were 37.5–2128 ng/L (mean: 167 ng/L) and not detected−6.95 ng/g dry weight (dw) (mean: 1.02 ng/g dw), respectively. Short-chain PFAAs-perfluorobutanoic acid (PFBA), perfluorohexanoic acid (PFHxA), and perfluorobutane sulfonic acid (PFBS) were the most prevalent PFAAs in surface water. Source analysis showed that firefighting foam (proportion: 31.3 %) and textile treatments and food packaging (proportion: 30.3 %) were the main sources of PFAAs in water. Based on the concentration of PFAAs in water, ecological and potential human health risks were assessed. Perfluorooctanoic acid (PFOA), perfluorononanoate (PFNA), perfluorodecanoate (PFDA) and perfluoroundecanoic acid (PFUnDA) posed nonnegligible ecological risk for some aquatic organisms. Levels of PFAAs (e.g., PFOA, PFNA, and PFDA etc.) in some water samples were higher than the advisory guidelines of PFAAs concentrations in water worldwide, indicating a potential human health risk. Therefore, PFOA, PFNA, PFDA, and PFUnDA are the key focus of pollutants in the water of the Yellow River in Shandong Province, and the standards and limits of these PFAAs in environments including surface water and sediment should be promoted.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000921/pdfft?md5=0a7328455dda0bafb1d99cef6281cddd&pid=1-s2.0-S2405665024000921-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141848001","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}