{"title":"Quality of Wastewater from Lithium-Brine Mining","authors":"Gordon D. Z. Williams, and , Avner Vengosh*, ","doi":"10.1021/acs.estlett.4c0112410.1021/acs.estlett.4c01124","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01124https://doi.org/10.1021/acs.estlett.4c01124","url":null,"abstract":"<p >The sustainability of lithium mining is one of the critical factors for a successful transition to renewable energy. A potential practice to alleviate brine level decline and loss of adjacent fresh groundwater from brine pumping in the salt pans (salars) is through injection of spent brines into the subsurface. The quality and possible impacts of injecting spent brines have not been fully investigated. Here we present data for major and trace elements in natural brines, brines and salts from evaporation ponds, and wastewaters from a lithium processing plant at the Salar de Uyuni in Bolivia, the largest known global lithium deposit. The investigation reveals that evaporation of natural brines results in highly saline brines (TDS ≈ 360 g/kg) with low pH (3.2) and elevated concentrations of lithium, boron, and arsenic (up to ∼50 mg/kg) that could modify the chemical composition and mineral saturation upon release to the environment. The extremely high arsenic concenrations and low pH also have potential environmental impacts. In contrast, the processing plant generates saline and low-saline wastewater streams with high pH (∼10) and lower solute concentrations that could dilute the natural lithium reservoir, while the high pH limits their disposal options.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"151–157 151–157"},"PeriodicalIF":8.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143376268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Jon Iriarte, Núria Trilla-Prieto, Naiara Berrojalbiz, Maria Vila-Costa* and Jordi Dachs,
{"title":"Bacterial Production Modulates the Persistence of Organophosphate Ester Flame Retardants and Plasticizers in the Ocean","authors":"Jon Iriarte, Núria Trilla-Prieto, Naiara Berrojalbiz, Maria Vila-Costa* and Jordi Dachs, ","doi":"10.1021/acs.estlett.4c0112810.1021/acs.estlett.4c01128","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01128https://doi.org/10.1021/acs.estlett.4c01128","url":null,"abstract":"<p >Understanding the biodegradation of organic pollutants is crucial for assessing the persistence and fate of these contaminants and improve their risk assessment, eventually drawing policy. The occurrence of organophosphate ester (OPE) flame retardants and plasticizers has been widely reported in the marine environment. However, few studies have assessed the potential of marine microorganisms to degrade them, particularly under oceanic conditions. Here, we report the results of six degradation experiments where in situ bacterial communities were challenged with environmentally relevant concentrations of OPEs in the Atlantic and Southern Oceans. Hydrophobic aryl-OPEs significantly decreased by 60% and 25% in the Atlantic and Southern Oceans, respectively. In Atlantic waters, up to 40% of OPE depletion was due to sorption to cells and close to 20% to biodegradation. The cold temperatures of the Southern Ocean resulted in a slower, nondetectable biodegradation, further confirmed by bacterial production results. Bacterial composition exposed to OPEs also showed a larger degree of changes in the Atlantic than in the Southern Ocean. Significant negative correlations were found between the fold changes in bacterial production and the decreases in OPE concentrations, suggesting that bacterial carbon demand is directly related to OPE biodegradation in the oceans.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"158–165 158–165"},"PeriodicalIF":8.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143376177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Marwan A. Alhinaai, Daniel P. Cassidy*, Donald M. Reeves, Stephen E. Kaczmarek, Michael Foster, John Jacobson and Mark S. Kieser,
{"title":"Chloride Removal from Stormwater and Lakes Impacted by Road Salt Application: Experimental Assessment of Friedel’s Salt Reactions","authors":"Marwan A. Alhinaai, Daniel P. Cassidy*, Donald M. Reeves, Stephen E. Kaczmarek, Michael Foster, John Jacobson and Mark S. Kieser, ","doi":"10.1021/acs.estlett.4c0115210.1021/acs.estlett.4c01152","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01152https://doi.org/10.1021/acs.estlett.4c01152","url":null,"abstract":"<p >Road salt (e.g., NaCl) application in cold-temperature regions has increased Cl<sup>–</sup> concentrations in freshwater. Removing Cl<sup>–</sup> from water is challenging because it is highly soluble. This paper is the first to demonstrate and characterize the removal of Cl<sup>–</sup> from stormwater via Friedel’s salt (Ca<sub>4</sub>Al<sub>2</sub>(OH)<sub>12</sub>Cl<sub>2</sub>(H<sub>2</sub>O)<sub>4</sub>) precipitation (FSP), achieved by adding calcium oxide (CaO) and sodium aluminate (NaAlO<sub>2</sub>). Laboratory tests were done on Cl<sup>–</sup> removal with FSP using a range of Ca/Al/Cl ratios in deionized (DI) water and stormwater samples impacted by road salt. Even the lowest doses resulted in significant removal of Cl<sup>–</sup> with maximum removal rates for comparable Ca/Al/Cl ratios of 72% and 84% in stormwater and DI water, respectively. Temporal experiments in stormwater and DI water indicate that most of the Cl<sup>–</sup> removal occurred within the first 10 min of reaction time. Potential applications of FSP were demonstrated for two hypothetical scenarios based on a well-characterized, salt-impacted lake. The first scenario indicates that a 30% reduction in stormwater Cl<sup>–</sup> mass is sufficient to maintain concentrations below 150 mg/L. A second scenario with an initial 300 mg/L lake water concentration shows the potential for implementing FSP in low-flow pump and treat systems for the rehabilitation of road-salt-impaired lakes.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"237–242 237–242"},"PeriodicalIF":8.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c01152","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375988","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}
Yujia Chen, Wenjing Su*, Zhuang Wang*, Yanfeng Huo, Shangpei Xun, Xintong Chen, Binfang He and Cheng Liu*,
{"title":"Application of Space-Based Glyoxal Observation for Estimating Global Nonmethane Volatile Organic Compounds Emissions from Urban Sources and Biomass Burning","authors":"Yujia Chen, Wenjing Su*, Zhuang Wang*, Yanfeng Huo, Shangpei Xun, Xintong Chen, Binfang He and Cheng Liu*, ","doi":"10.1021/acs.estlett.4c0104110.1021/acs.estlett.4c01041","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01041https://doi.org/10.1021/acs.estlett.4c01041","url":null,"abstract":"<p >Nonmethane volatile organic compound (NMVOC) pollution severely impacts urban atmospheric quality. We propose a top-down method for estimating NMVOC emissions based on glyoxal─an important oxidation product of NMVOCs observed from space. We applied the wind rotation aggregation and exponential modified Gaussian methods to estimate the glyoxal effective lifetime and production rate in the glyoxal plumes downwind. These methods were applied to 60 cities worldwide, and the effective production rate of glyoxal was screened out in 22 cities, ranging from 0.8 ± 0.3 to 13.7 ± 3.3 mol/s. The results indicate significant correlation with total NMVOC emission from bottom-up inventory (<i>r</i> = 0.85, <i>p</i> < 0.01). Additionally, we utilized daily satellite results to identify biomass burning emission sources in Australian fire events. Our research offers a novel perspective on monitoring of urban and transient NMVOC emissions and provides a new data source for emission reduction policymaking.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"209–215 209–215"},"PeriodicalIF":8.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Celebrating the 2025 Winners of the Outstanding Achievements in Environmental Science & Technology Award and the James J. Morgan Early Career Award","authors":"Bryan W. Brooks*, and , Julie B. Zimmerman*, ","doi":"10.1021/acs.estlett.4c0109710.1021/acs.estlett.4c01097","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01097https://doi.org/10.1021/acs.estlett.4c01097","url":null,"abstract":"","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 1","pages":"1–4 1–4"},"PeriodicalIF":8.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143088721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Muchuan Niu, Yuan Yao, Haoxuan Chen, Luke Villanueva and Yifang Zhu*,
{"title":"Fine and Ultrafine Particle Concentrations in a Cannabis Consumption Lounge","authors":"Muchuan Niu, Yuan Yao, Haoxuan Chen, Luke Villanueva and Yifang Zhu*, ","doi":"10.1021/acs.estlett.4c0101910.1021/acs.estlett.4c01019","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01019https://doi.org/10.1021/acs.estlett.4c01019","url":null,"abstract":"<p >With widespread adult-use cannabis legalization in the United States, cannabis consumption lounges have rapidly emerged. However, studies of indoor cannabis exposure are still lacking, particularly in public spaces. We measured fine particle (PM<sub>2.5</sub>) mass concentrations and particle number concentrations at a cannabis consumption lounge in Los Angeles, California. We compared particle concentrations at the street front, backyard, and two smoking cabins and identified three busyness levels to investigate concentration differences in the smoking cabin. The results showed that PM<sub>2.5</sub> concentrations in the smoking cabin exceeded 1600 μg/m<sup>3</sup>. During busy hours (12:00 p.m. to 10:00 p.m.), the median (IQR) PM<sub>2.5</sub> concentration [31.2 (317.3) μg/m<sup>3</sup>] was >10 times higher than overnight (10:00 p.m. to 9:00 a.m.) concentrations [3.0 (1.3) μg/m<sup>3</sup>] and >3 times higher than concentrations [8.5 (13.8) μg/m<sup>3</sup>] during less busy hours (9:00 a.m. to 12:00 p.m.). The particle number concentration during active cannabis use [median of 1.9 × 10<sup>4</sup>, interquartile range (IQR) of 1.3 × 10<sup>4</sup> particles/cm<sup>3</sup>] was significantly higher than the baseline (median of 0.9 × 10<sup>4</sup>, IQR of 0.3 × 10<sup>4</sup> particles/cm<sup>3</sup>). Our research shows high fine and ultrafine particle concentrations in a cannabis consumption lounge, which could facilitate future studies of related health effects and the development of targeted regulations.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"183–188 183–188"},"PeriodicalIF":8.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c01019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375971","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}
Yan Zhang, Changsheng Guo, Shanwei Sun, Minghui Xie, Xue Wang, Shasha Liu, Jian Xu* and Fengchang Wu,
{"title":"Cigarette Filters─A Neglected Source of Phthalate Exposure to Humans","authors":"Yan Zhang, Changsheng Guo, Shanwei Sun, Minghui Xie, Xue Wang, Shasha Liu, Jian Xu* and Fengchang Wu, ","doi":"10.1021/acs.estlett.4c0100210.1021/acs.estlett.4c01002","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01002https://doi.org/10.1021/acs.estlett.4c01002","url":null,"abstract":"<p >Smoking is a significant contributor to premature death globally. While studies often focus on pollutants like nicotine and PAHs generated during smoking, little attention has been given to characteristic pollutants in cigarette filters, such as phthalates. In the present study, 20 phthalates were analyzed in 45 cigarette filters from seven countries. Phthalates were detectable in all samples, with the total concentrations in the range of 391.23–132216.69 ng/g (median: 1876.61 ng/g). Predominant phthalates included bis(2-butoxyethyl) phthalate (DBEP), di-<i>n</i>-butyl phthalate (DBP), and bis(2-ethoxyethyl) phthalate (DEEP), which collectively accounted for over 45% of the total concentrations. Daily exposure doses of phthalates from cigarette filters ranged from 30.99 to 10472.61 ng/(kg-bw day), with men’s median intake approximately 1.25 times higher than women’s. The total daily exposure doses varied by country in the order of Russia (median: 5092.72 ng/(kg-bw day)) > Japan (316.25) > China (240.36) > South Korea (199.37) > Switzerland (88.24) > USA (66.35) > Cuba (41.41). Carcinogenic risks associated with phthalate exposure exceeded 1 × 10<sup>–6</sup>, indicating significant health risks from this source of human exposure. This study for the first time represents a comprehensive evaluation of phthalate exposure from cigarette filters, confirming substantial risks associated with this overlooked source of human exposure.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"137–143 137–143"},"PeriodicalIF":8.9,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Styrofoams Bunched by Plant Roots in Coastal Environments","authors":"Wenjun Zhao, Cuizhu Ma, Yifan Zheng, Yufei Chen, Qiqing Chen and Huahong Shi*, ","doi":"10.1021/acs.estlett.4c0097310.1021/acs.estlett.4c00973","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c00973https://doi.org/10.1021/acs.estlett.4c00973","url":null,"abstract":"<p >Styrofoams are widely used as floats and are likely to be damaged by burrowing animals in mariculture. However, the fate of fragmented Styrofoams and their interaction with organisms are not clear in coastal environments. In the present study, field investigations were conducted in 14 sites along the coast of China from July 2023 to October 2024. Results showed that Styrofoams were buried by sand or soil at a depth of up to 50–60 cm in patchy and belted distribution patterns. The abundances of Styrofoams in the deep layer of sediments ranged from 94 to 3042 items/kg. The buried Styrofoams were bunched by roots of six plant species in three ways, i.e., wrapping, crossing, and clinging. The abundance of bunched foams ranged from 1 to 495 items/plant. Simulation experiments in the laboratory showed that plant roots could interact with Styrofoams after 14 days of exposure and tended to cross through the gaps of foam materials. Our study indicates that the fragmented Styrofoams coming from mariculture floats could remain in the sediments due to the physical and biological factors, providing new insight into the biogeochemical cycle of plastic debris.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"203–208 203–208"},"PeriodicalIF":8.9,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Sumbul Hafeez, Aysha Khanam, Han Cao, Brian P. Chaplin and Wenqing Xu*,
{"title":"Correction to “Novel Conductive and Redox-Active Molecularly Imprinted Polymer for Direct Quantification of Perfluorooctanoic Acid”","authors":"Sumbul Hafeez, Aysha Khanam, Han Cao, Brian P. Chaplin and Wenqing Xu*, ","doi":"10.1021/acs.estlett.4c0115810.1021/acs.estlett.4c01158","DOIUrl":"https://doi.org/10.1021/acs.estlett.4c01158https://doi.org/10.1021/acs.estlett.4c01158","url":null,"abstract":"","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"243 243"},"PeriodicalIF":8.9,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.estlett.4c01158","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375948","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}
Sumbul Hafeez, Aysha Khanam, Han Cao, Brian P Chaplin, Wenqing Xu
{"title":"Correction to \"Novel Conductive and Redox-Active Molecularly Imprinted Polymer for Direct Quantification of Perfluorooctanoic Acid\".","authors":"Sumbul Hafeez, Aysha Khanam, Han Cao, Brian P Chaplin, Wenqing Xu","doi":"10.1021/acs.estlett.4c01158","DOIUrl":"10.1021/acs.estlett.4c01158","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1021/acs.estlett.4c00557.].</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 2","pages":"243"},"PeriodicalIF":8.9,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11823441/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431891","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}