Nezha Mejjad , Amine El Mahdi Safhi , Abdelmourhit Laissaoui
{"title":"Insightful analytical review of potential impacts of microplastic pollution on coastal and marine ecosystem services","authors":"Nezha Mejjad , Amine El Mahdi Safhi , Abdelmourhit Laissaoui","doi":"10.1016/j.hazadv.2024.100578","DOIUrl":"10.1016/j.hazadv.2024.100578","url":null,"abstract":"<div><div>The increasing volume of plastic waste and the widespread use of plastic products pose significant challenges to the effectiveness of strategies, policies, and management projects aimed at combating ocean plastic pollution. Three billion people's livelihoods depend on marine and coastal resources, and the market value of these resources and related blue industries is estimated at US$3 trillion annually, which is about 5 % of global GDP. Plastics make up around 80 % of the total waste discarded in the ocean, and each year, over 13 million metric tons of plastic enter the marine environment threatening biodiversity and affecting ecosystem services upon which the economy of coastal countries depends. This paper explores the impact of plastic waste on understudied marine and coastal ecosystem services, utilizing the Millennium Ecosystem Assessment framework as a guide. This study reveals that prioritizing the assessment and study of supporting services is critical for maintaining and sustaining other services. This review provides data on the impact of plastic on marine ecosystem services and highlights the need for effective plastic waste management to sustain these services. Coordinated global actions and initiatives among regions, nations, and industries remain crucial steps in addressing and tackling plastic pollution in the ocean.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100578"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143175908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Community level vulnerability of groundwater fluoride contamination and exposure by the application of multi-criteria model","authors":"Kousik Das , Harish Puppala , Ghanshyam Pandey , Mijanur Mondal , Pankaj Pathak , Uttiya Dey , Sudeshna Chell , Sumana Dutta , Pankaj Kumar","doi":"10.1016/j.hazadv.2024.100555","DOIUrl":"10.1016/j.hazadv.2024.100555","url":null,"abstract":"<div><div>Elevated fluoride (F⁻) levels in groundwater, primarily due to geogenic processes, pose significant health risks, including dental and skeletal fluorosis and neurological disorders. This study aimed to quantify source-dependent F⁻ exposure at the community level in selected tropical dry regions of Andhra Pradesh, India. These locations include Chintal Cheruvu, Rompicharala, Shantamangalur, Thimmapur, and Nadendla. Community surveys and drinking water sample analyses were conducted in these regions. Dental Fluorosis Index (DFI) was used to estimate exposure levels across age and sex groups. Findings of surveys indicate that groundwater consumption with high F⁻ (4.3 mg/L) results in the highest exposure dose (0.62 mg/kg/day), with Chintal Cheruvu identified as the most affected. A strong positive correlation was observed between exposure dose, water F⁻ content, and the Community Fluorosis Index (CFI), with R² values of 0.98 and 0.97, respectively. Dental fluorosis prevalence exceeded 80% across all age groups, and household surveys revealed 100% unawareness of F⁻ exposure risks. Though there exist many ways to determine the impact of fluoride, the hierarchy of regions may change with the type of parameter chosen. To address this, we developed the Fluoride Impact Index (FII), a multi-criteria index computed considering various parameters indicating the impact of fluoride in a region. The magnitude of FII for Chintal Cheruvu is 0.563 which is highest among the considered regions indicating that it is most impacted region that needs remedial measures first in the hierarchy. Rompicharala with FII as 0.252, Nadendla (0.223), Shantamangalur (0.214), and Thimmapur (0.188) follows the hierarchy. These findings highlight the urgent need to raise awareness about F⁻ exposure risks and to identify sustainable alternative water sources. Immediate interventions, including human health risk assessments using the USEPA approach and the provision of safe drinking water, are critical to achieving SDG-6 of safe drinking water for all by 2030.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100555"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enikő Mészáros , Attila Bodor , Kamilla Kovács , Sarolta Papp , Etelka Kovács , Katalin Perei , Kata Frei , Gábor Feigl
{"title":"Plastic contamination from latex and nitrile disposable gloves has the potential to influence plant productivity and soil health","authors":"Enikő Mészáros , Attila Bodor , Kamilla Kovács , Sarolta Papp , Etelka Kovács , Katalin Perei , Kata Frei , Gábor Feigl","doi":"10.1016/j.hazadv.2025.100605","DOIUrl":"10.1016/j.hazadv.2025.100605","url":null,"abstract":"<div><div>The COVID-19 pandemic has led to a surge in plastic waste due to the widespread use of disposable protective gloves (DPGs), which pose a novel risk to the environment and potentially disrupt ecosystems. This study investigated the impact of latex and nitrile DPG fragments on the early growth and development of <em>Brassica napus</em> seedlings and soil microbial activity—an area not previously explored. Short-term <em>in vitro</em> experiments, which were performed under controlled conditions, revealed statistically significant inhibition of primary root length, with latex fragments at a 0.5% concentration reducing growth by up to 30%. To determine whether the surrounding environment of the plastic fragments and roots modulates the effects of DPGs, we also employed rhizotron systems that simulate realistic soil conditions. These systems, highlighting the role of the environment in plant responses, showed that while the effects on root and shoot growth were moderate compared with those in the <em>in vitro</em> setup, significant changes still occurred. The study revealed that latex fragments generally promoted leaf area, whereas nitrile fragments had mixed effects. Additionally, DPG contamination differentially altered soil enzyme activities and microbial biomass, indicating potential shifts in soil health. These findings provide compelling evidence of the complex interactions between DPGs and plant‒soil systems, underscoring the ecological risks associated with this type of pollution and the urgent need for improved plastic waste management to protect agricultural ecosystems.</div><div><strong>Statement of environmental implications</strong></div><div>The presence of disposable plastic glove (DPG) fragments in agricultural environments poses a significant environmental concern, potentially disrupting root growth dynamics, altering shoot morphology, and impacting soil microbial activity. These findings highlight the need for enhanced waste management strategies to mitigate plastic pollution in agricultural settings, safeguarding plant health, soil fertility, and ecosystem resilience.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100605"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unveiling potential biomarkers and associated health risks of chronic experimental exposure to environmentally relevant concentration of metalaxyl: An untargeted metabolomics approach","authors":"Nasreen Nazar , Niladri Sekhar Chatterjee","doi":"10.1016/j.hazadv.2025.100615","DOIUrl":"10.1016/j.hazadv.2025.100615","url":null,"abstract":"<div><div>The aquatic ecosystem elemental for global biodiversity and human sustenance confronts enduring threats from pollutants, notably pesticides. Metalaxyl, a prevalent agrochemical has garnered attention due to its extensive application and potential endocrine-disrupting characteristics. This study has utilized an untargeted metabolomics approach employing UHPLC-Q-Orbitrap MS, to evaluate the metabolic changes associated with chronic experimental exposure (60 days) to Metalaxyl at an environmentally relevant concentration (25 ng/g) using Wistar albino rats. The results demonstrated notable variations in phosphatidylethanolamines, amino acid profiles, and vitamins, suggesting them as potential biomarkers to elucidate the influence of this environmental contaminant on biological systems. Furthermore, the pathway analysis revealed significant alterations in steroid biosynthesis, citric acid (TCA) cycle, Phenylalanine, tyrosine, and tryptophan biosynthesis, purine, and pyrimidine metabolisms. These results on the health implications of Metalaxyl offer valuable insights into its ecotoxicological effects and associated health risks. They also uncover these contaminants' profound and far-reaching impact on biological pathways by providing invaluable insight into their disruptive and influential nature.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100615"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A comprehensive review on novel zeolite-based adsorbents for environmental pollutant","authors":"Fatemeh Bahmanzadegan, Ahad Ghaemi","doi":"10.1016/j.hazadv.2025.100617","DOIUrl":"10.1016/j.hazadv.2025.100617","url":null,"abstract":"<div><div>Zeolite-based materials have demonstrated exceptional potential in the adsorption and removal of various environmental pollutants due to their tunable properties and high efficiency. This review highlights the significant advancements and comparative performance of various zeolite-based composites and their applications in pollution remediation. Zeolite composites such as Fe-Mn oxide/zeolite exhibit a capacity of 53.35 mg/g for Cu(II) adsorption, while Ni/zeolite achieves a capacity of 147.06 mg/g for the same pollutant. For Pb removal, an activated carbon-zeolite composite exhibits an outstanding capacity of 213.3 mg/g, showcasing the effectiveness of hybrid materials. In dye removal, zeolite X incorporated with karaya gum demonstrated an extraordinary capacity of 409 mg/g for Brilliant Green, underscoring its effectiveness in cationic dye sorption. Notably, chitosan/zeolite composites exhibit an adsorption capacity of 221 mg/g for indigo carmine, demonstrating excellent potential for dye removal. In CO<sub>2</sub> capture, 4A zeolite modified with TEPA achieved a record capacity of 9.4 mmol/g at 25 °C and 5 bar, illustrating the effectiveness of amine-functionalized materials in greenhouse gas mitigation. Zeolite-based materials also show promise in hydrogen sulfide removal, with Na/Y zeolite achieving an impressive adsorption capacity of 204 mg H<sub>2</sub>S/g, surpassing industrial molecular sieves. These findings highlight the adaptability of zeolite-based adsorbents in addressing diverse environmental challenges. This review consolidates state-of-the-art advancements by integrating insights into adsorption mechanisms, isotherms, and material modifications. It provides a strategic framework for future research to optimize zeolite-based materials for specific pollutant removal applications.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100617"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of some physicochemical parameters and health risks associated with potentially toxic elements (PTEs) in agricultural soils from the southwest region of Ethiopia","authors":"Endalkachew Etana , Redwan Hussein , Abire Huluka","doi":"10.1016/j.hazadv.2024.100561","DOIUrl":"10.1016/j.hazadv.2024.100561","url":null,"abstract":"<div><div>In this study, soil samples collected from Burusa and Bure agricultural sectors were analyzed for their physicochemical parameters and potentially toxic elements (Fe, Mn, Zn, Cu, Co, B, Se, Ni, Cr, Pb, Cd, As, and Hg). Physicochemical parameters were analyzed according to AOAC methods. For quantification of PTEs, the soil samples were digested by using aquaregia (HCl: HNO<sub>3</sub>; 3:1) and 5 mL of H<sub>2</sub>O<sub>2</sub> (30%) at a digestion temperature of 250 °C for 3 hours prior to ICP-OES analysis. The percent recoveries (%R) and relative standard deviation (%RSD) of this method ranged from 83 to 106% and 0.39 to 9.2%, respectively. The LODs and LOQ values were in the range of 4.3 × 10<sup>–4</sup>–5.3 × 10<sup>–2</sup> mg/L and 1.4 × 10<sup>–3</sup>–1.76 × 10<sup>–1</sup> mg/L, respectively. The analyzed mean values of physicochemical parameter including pH, temperature, electrical conductivity, moisture, organic matter and nitrogen content were found in the range of 4.85–6.47, 20.5–21.4 °C, 101.6–230.7 µS/cm, 8.67–20.7%, 0.677–1.81% and 5.81–6.85%, respectively. The average amount of potentially toxic elements found in the soil samples were ranged as 57073–81279, 1185–3255, 41.0–72.2, 12.6–29.2, 18.8–50.8, 25.0–40.5, 42.2–60.8, 13.6–34.5, 41.9- 67.2, 25.0–59.4, 9.92–13.3, 0.933–1.12 and 4.97–8.63 in mg/kg for Fe, Mn, Zn, Cu, Co, B, Se, Ni, Cr, Pb, Cd, As and Hg, respectively. The highest concentrations of among the entire PTEs were recorded for Fe, followed by Mn, in the analyzed soil samples. All the studied elements are below the FAO/WHO permissible limit except Fe, Se, Cd, and Hg for all analyzed soil samples and Mn for the Bure soil sample. The target hazard quotient (THQ) and hazard index (HI) values are <1, suggesting an insignificant non-carcinogenic risk of the heavy metals to the adults via ingestion, inhalation, and dermal contact exposure of agricultural soils. Likewise, the individual element incremental lifetime cancer risk (ILCR) occurrence for all studied soil samples is below 1 × 10<sup>–4</sup>. The total ILCR of potentially toxic heavy metals (Ni, Cr, Pb, Cd and As) resulting from ingestion, inhalation, and dermal contact exposure of agricultural soil by an adult population indicate a slightly higher potential cancer risk (> 1 × 10<sup>–4</sup>) for soil samples obtained from Bure S1, Bure S2, and Bure S3. Therefore, continuous monitoring of these harmful elements should be made by agricultural sectors and responsible government regulatory authorities are crucial to prevent PTEs related to agricultural soils in Ethiopia.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100561"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ran Tao , Rui Hu , Willis Gwenzi , Charles Péguy Nanseu-Njiki , Chicgoua Noubactep
{"title":"Loss of scientific integrity in using metallic iron (Fe0) for water remediation: Letʼs agree to disagree","authors":"Ran Tao , Rui Hu , Willis Gwenzi , Charles Péguy Nanseu-Njiki , Chicgoua Noubactep","doi":"10.1016/j.hazadv.2025.100595","DOIUrl":"10.1016/j.hazadv.2025.100595","url":null,"abstract":"<div><div>Metallic iron (Fe<sup>0</sup>) seems to be a well-acknowledged reactive material for water treatment at several scales. Many operating systems have been designed based on the premise that Fe<sup>0</sup> is a reducing agent, transforming reducible species (E<sup>0</sup> > –0.44 V) under environmental conditions (electrochemical reaction – electrons from Fe<sup>0</sup>). However, Fe<sup>0</sup>-remediation systems developed from this starting point are not optimally suited for harnessing their full potential. In contrast, the alternative approach regarding Fe<sup>0</sup> as a generator of contaminant scavengers (e.g. iron oxides) and reductive species (e.g. Fe<sup>II</sup>, H<sub>2</sub>) can allow for the tailored development of innovative systems capable of achieving various treatment objectives, including contaminant reduction through an indirect mechanism (e.g. electrons from Fe<sup>II</sup>, Fe<sub>3</sub>O<sub>4</sub>, H<sub>2</sub>). This perspective article comparatively analyzes the two distinct approaches for the Fe<sup>0</sup>-based water remediation technology. Results show that the alternative pathway facilitates the design of Fe<sup>0</sup>-remediation systems to accommodate different Fe<sup>0</sup>-driven treatment processes, while potentially accomplishing enhanced treatment efficiency, at reduced costs. The resulting science-based systems have the potential to drive technological revolution in water treatment for achieving water security worldwide.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100595"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniela M. Truchet, Diana M. Villagran, Mirta L. Menone
{"title":"Pollution biomarkers in Latin American and Caribbean marine environments: A review to identify gaps in passive biomonitoring studies","authors":"Daniela M. Truchet, Diana M. Villagran, Mirta L. Menone","doi":"10.1016/j.hazadv.2024.100554","DOIUrl":"10.1016/j.hazadv.2024.100554","url":null,"abstract":"<div><div>Marine environments, particularly coastal areas, are significantly impacted by human activities that introduce pollutants. Consequently, researchers are exploring ways to link contaminant exposure to adverse ecological effects, with biomonitoring using biomarkers proving especially effective.</div><div>This review examines publications from 2000 to 2023 on field passive biomonitoring of contamination in Latin American and Caribbean (LAC) coastal ecosystems, aiming to identify knowledge gaps and improve conservation strategies. Of the 277 articles analyzed, almost 60 % originated from Brazil, with Argentina contributing 15.52 %, Mexico 14.8 %, and other countries 10.10 %. Metals were the most frequently quantified contaminants (28.77 %), followed by hydrocarbons (13.4 %). However, most studies focused on a single contaminant, overlooking the fact that organisms are typically exposed to complex contaminant mixtures.</div><div>The most studied species were bivalves, gastropods, and teleost fishes, representing 24.62 %, 22.73 %, and 22.73 % of the total, respectively. Few studies examined aquatic plants and macroalgae, despite their known effectiveness as bioindicators.</div><div>A majority of the studies (56.21 %) concentrated on a single type of biomarker, with oxidative stress biomarkers being the most common (17.03 %). Although useful as \"early warning\" signals, these biomarkers lack specificity. Future research should prioritize identifying more specific biomarkers for different contaminants. Given the importance of biomonitoring in conservation management, increasing investment in marine sciences and securing stronger government commitment is crucial.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100554"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nikolaos Simantiris , Alexander Theocharis , Markos Avlonitis , Christos L. Chochos , Vasilis G. Gregoriou , Martha Z. Vardaki
{"title":"Floating microplastics in a hypersaline Mediterranean coastal lagoon: Abundance, chemical composition, and influence of environmental parameters","authors":"Nikolaos Simantiris , Alexander Theocharis , Markos Avlonitis , Christos L. Chochos , Vasilis G. Gregoriou , Martha Z. Vardaki","doi":"10.1016/j.hazadv.2025.100611","DOIUrl":"10.1016/j.hazadv.2025.100611","url":null,"abstract":"<div><div>Coastal lagoons are marine environments with high economic importance due to their great role in seafood production. However, only a small fraction of coastal lagoons has been investigated for microplastic pollution, and considering hypersaline lagoons, the percentage drops even further. This study investigated microplastics (MPs) pollution for the first time in a Mediterranean hypersaline coastal lagoon. Our work reports an average abundance of 60 MPs/L with a statistically significant positive correlation to salinity. The microplastic particles identified in this study were primarily fragments of semi-synthetic fibers of cellulose acetate. A small amount was determined as polyester polyethylene terephthalate (PET), originating from fishing and touristic activities that occur in the area and potentially transported by the surface circulation of the NE Ionian Sea. Finally, this study shows that the mechanisms controlling the hypersaline conditions in the lagoon (atmospheric forcing and seawater intrusions) are also responsible for the higher concentration of MPs compared to other lagoons.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100611"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143343033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
François Clavero , Jérôme Cachot , Christelle Clérandeau , Laure Sandoval , Fanny Meytraud , Nicolas Picard , Warren Albertin , Gilles de Revel , Rémy Ghidossi , Céline Franc
{"title":"Study of intense pulsed light as a new remediation process for pesticides in water using mass spectrometry and ecotoxicological approaches","authors":"François Clavero , Jérôme Cachot , Christelle Clérandeau , Laure Sandoval , Fanny Meytraud , Nicolas Picard , Warren Albertin , Gilles de Revel , Rémy Ghidossi , Céline Franc","doi":"10.1016/j.hazadv.2024.100577","DOIUrl":"10.1016/j.hazadv.2024.100577","url":null,"abstract":"<div><div>Pulsed light (PL) technology was investigated as a pesticide removal process. The degradation of 20 pesticides in water was monitored by mass spectrometry and revealed 74 photoproducts. Structure hypotheses were proposed for 47 photoproducts according to their fragmentation, isotopic pattern, and literature data. This work enabled the development of a LC-MS method for the relative quantification of photoproducts and for the absolute quantification of their parent pesticides.</div><div>This analytical method was then applied in optimizing the PL parameters. It was demonstrated that increasing voltage and fluence leads to more efficient pesticide degradation, with concentration reduction of 99 % for 14 pesticides. The compound sensitivity seems to be family dependent. Moreover, PL succeeded in degrading the photoproducts themselves.</div><div>Acute toxicity tests were performed on the bacteria <em>A</em>liivibrio <em>fischeri</em>. A significant reduction in toxicity was observed for 10 out of 18 individual pesticides, while no increase was observed for the remaining seven. When applied to a cocktail solution, the toxicity decreased by 7.25-fold between the untreated and the most PL treated solution. This work demonstrates that PL is a promising process for removing pesticides from contaminated water. Further studies are needed to demonstrate the safety of treated wastewater on various trophic links.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100577"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}