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Tao MT, Sun X, Ding TT, Xu YQ, Liu SS. Screening for frequently detected quaternary ammonium mixture systems in waters based on frequent itemset mining and prediction of their toxicity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116581. [PMID: 38875820 DOI: 10.1016/j.ecoenv.2024.116581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 06/04/2024] [Accepted: 06/09/2024] [Indexed: 06/16/2024]
Abstract
Screening and prioritizing research on frequently detected mixture systems in the environment is of great significance, as conducting toxicity testing on all mixtures is impractical. Therefore, the frequent itemset mining (FIM) was introduced and applied in this paper to identify variables that commonly co-occur in a dataset. Based on the dataset of the quaternary ammonium compounds (QACs) in the water environment, the four frequent QAC mixture systems with detection rate ≥ 35 % were found, including [BDMM]+Cl--[BTMM]+Cl- (M1), [BDMM]+Cl--[BHMM]+Cl- (M2), [BTMM]+Cl- -[BHMM]+Cl- (M3), and [BDMM]+Cl--[BTMM]+Cl--[BHMM]+Cl- (M4). [BDMM]+Cl-, [BTMM]+Cl-, and [BHMM]+Cl- are benzyl dodecyl dimethyl ammonium chloride, benzyl tetradecyl dimethyl ammonium chloride, and benzyl hexadecyl dimethyl ammonium chloride, respectively. Then, the toxicity of the representative mixture rays and components for the four frequently detected mixture systems was tested using Vibrio qinghaiensis sp.-Q67 (Q67) as a luminescent indicator organism at 0.25 and 12 h. The toxicity of the mixtures was predicted using concentration addition (CA) and independent action (IA) models. It was shown that both the components and the representative mixture rays for the four frequently detected mixture systems exhibited obvious acute and chronic toxicity to Q67, and their median effective concentrations (EC50) were below 7 mg/L. Both CA and IA models predicted the toxicity of the four mixture systems well. However, the CA model had a better predictive ability for the toxicity of the M3 and M4 mixtures than IA at 12 h.
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Affiliation(s)
- Meng-Ting Tao
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Xiao Sun
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Ting-Ting Ding
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Ya-Qian Xu
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Shu-Shen Liu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China.
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2
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Cheng Y, Liu C, Lv Z, Liang Y, Xie Y, Wang C, Wan S, Leng X, Hu M, Zheng G. High-Resolution Mass Spectrometry Screening of Quaternary Ammonium Compounds (QACs) in Dust from Homes and Various Microenvironments in South China. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 38276914 DOI: 10.1021/acs.est.3c09942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Despite their ubiquitous use, information regarding the presence of quaternary ammonium compounds (QACs) in various microenvironments remains scarce and only a small subset of QACs has been monitored using targeted chemical analysis. In this study, a total of 111 dust samples were collected from homes and various public settings in South China during the COVID-19 pandemic and were analyzed for traditional and emerging QACs using high-resolution mass spectrometry. The total traditional QAC concentrations in residential dust (∑traditional QAC, sum of 18 traditional QACs) ranged from 13.8 to 150 μg/g with a median concentration of 42.2 μg/g. Twenty-eight emerging QACs were identified in these samples, and the composition of ∑emerging QAC (sum of emerging QACs) to ∑QAC (sum of traditional and emerging QACs) ranged from 19 to 42% across various microenvironments, indicating the widespread existence of emerging QACs in indoor environments. Additionally, dust samples from cinemas exhibited higher ∑QAC concentrations compared to homes (medians 65.9 μg/g vs 58.3 μg/g, respectively), indicating heavier emission sources of QACs in these places. Interestingly, significantly higher ∑QAC concentrations were observed in dust from the rooms with carpets than those without (medians 65.6 μg/g vs 32.6 μg/g, p < 0.05, respectively). Overall, this study sheds light on the ubiquitous occurrence of QACs in indoor environments in South China.
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Affiliation(s)
- Yao Cheng
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chenglin Liu
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong Lv
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuge Liang
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yichun Xie
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chen Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Sheng Wan
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xinrui Leng
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Min Hu
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Guomao Zheng
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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3
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Arnold W, Blum A, Branyan J, Bruton TA, Carignan CC, Cortopassi G, Datta S, DeWitt J, Doherty AC, Halden RU, Harari H, Hartmann EM, Hrubec TC, Iyer S, Kwiatkowski CF, LaPier J, Li D, Li L, Muñiz Ortiz JG, Salamova A, Schettler T, Seguin RP, Soehl A, Sutton R, Xu L, Zheng G. Quaternary Ammonium Compounds: A Chemical Class of Emerging Concern. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:7645-7665. [PMID: 37157132 PMCID: PMC10210541 DOI: 10.1021/acs.est.2c08244] [Citation(s) in RCA: 47] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 05/10/2023]
Abstract
Quaternary ammonium compounds (QACs), a large class of chemicals that includes high production volume substances, have been used for decades as antimicrobials, preservatives, and antistatic agents and for other functions in cleaning, disinfecting, personal care products, and durable consumer goods. QAC use has accelerated in response to the COVID-19 pandemic and the banning of 19 antimicrobials from several personal care products by the US Food and Drug Administration in 2016. Studies conducted before and after the onset of the pandemic indicate increased human exposure to QACs. Environmental releases of these chemicals have also increased. Emerging information on adverse environmental and human health impacts of QACs is motivating a reconsideration of the risks and benefits across the life cycle of their production, use, and disposal. This work presents a critical review of the literature and scientific perspective developed by a multidisciplinary, multi-institutional team of authors from academia, governmental, and nonprofit organizations. The review evaluates currently available information on the ecological and human health profile of QACs and identifies multiple areas of potential concern. Adverse ecological effects include acute and chronic toxicity to susceptible aquatic organisms, with concentrations of some QACs approaching levels of concern. Suspected or known adverse health outcomes include dermal and respiratory effects, developmental and reproductive toxicity, disruption of metabolic function such as lipid homeostasis, and impairment of mitochondrial function. QACs' role in antimicrobial resistance has also been demonstrated. In the US regulatory system, how a QAC is managed depends on how it is used, for example in pesticides or personal care products. This can result in the same QACs receiving different degrees of scrutiny depending on the use and the agency regulating it. Further, the US Environmental Protection Agency's current method of grouping QACs based on structure, first proposed in 1988, is insufficient to address the wide range of QAC chemistries, potential toxicities, and exposure scenarios. Consequently, exposures to common mixtures of QACs and from multiple sources remain largely unassessed. Some restrictions on the use of QACs have been implemented in the US and elsewhere, primarily focused on personal care products. Assessing the risks posed by QACs is hampered by their vast structural diversity and a lack of quantitative data on exposure and toxicity for the majority of these compounds. This review identifies important data gaps and provides research and policy recommendations for preserving the utility of QAC chemistries while also seeking to limit adverse environmental and human health effects.
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Affiliation(s)
- William
A. Arnold
- University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Arlene Blum
- Green
Science Policy Institute, Berkeley, California 94709, United States
- University
of California, Berkeley, California 94720, United States
| | - Jennifer Branyan
- California
Department of Toxic Substances Control, Sacramento, California 95814, United States
| | - Thomas A. Bruton
- California
Department of Toxic Substances Control, Sacramento, California 95814, United States
| | | | - Gino Cortopassi
- University
of California, Davis, California 95616, United States
| | - Sandipan Datta
- University
of California, Davis, California 95616, United States
| | - Jamie DeWitt
- East
Carolina University, Greenville, North Carolina 27834, United States
| | - Anne-Cooper Doherty
- California
Department of Toxic Substances Control, Sacramento, California 95814, United States
| | - Rolf U. Halden
- Arizona
State University, Tempe, Arizona 85287, United States
| | - Homero Harari
- Icahn
School of Medicine at Mount Sinai, New York, New York 10029, United States
| | | | - Terry C. Hrubec
- Edward Via College of Osteopathic Medicine, Blacksburg, Virginia 24060, United States
| | - Shoba Iyer
- California Office of Environmental Health Hazard Assessment, Oakland, California 94612, United States
| | - Carol F. Kwiatkowski
- Green
Science Policy Institute, Berkeley, California 94709, United States
- North Carolina State University, Raleigh, North Carolina 27695 United States
| | - Jonas LaPier
- Green
Science Policy Institute, Berkeley, California 94709, United States
| | - Dingsheng Li
- University
of Nevada, Reno, Nevada 89557, United States
| | - Li Li
- University
of Nevada, Reno, Nevada 89557, United States
| | | | - Amina Salamova
- Indiana University, Atlanta, Georgia 30322, United States
| | - Ted Schettler
- Science and Environmental Health Network, Bolinas, California 94924, United States
| | - Ryan P. Seguin
- University of Washington, Seattle, Washington 98195, United States
| | - Anna Soehl
- Green
Science Policy Institute, Berkeley, California 94709, United States
| | - Rebecca Sutton
- San Francisco Estuary Institute, Richmond, California 94804, United States
| | - Libin Xu
- University of Washington, Seattle, Washington 98195, United States
| | - Guomao Zheng
- Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
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Zhang L, Tang C, Li M, Wang H, Zhang S, Wang J, Dong X, Fang D, Bai H, Sun Y, Yue D. Identification of key surfactant in municipal solid waste leachate foaming and its influence mechanism. WATER RESEARCH 2023; 231:119487. [PMID: 36680826 DOI: 10.1016/j.watres.2022.119487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/16/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Serious foaming problems and the excessive consumption of defoamer have undoubtedly become one of the most critical problems that hinder municipal solid waste (MSW) leachate treatment efficiency and industry development. Since there is limited research penetrating the foaming mechanism and identification of the key surfactants, current defoaming and surfactant removal techniques lack pertinence and orientation. In this study, a foaming characterization device was developed and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC/MS/MS) was optimized to accurately identify the key surfactants affecting leachate foaming and offer a glimpse into their interaction mechanisms. This study collected leachate samples from 9 typical landfills and waste-to-energy facilities of various waste compositions, climatic conditions, ages, and geographical locations. The foaming problem of leachate was mainly centered on raw leachate and nanofiltration membrane concentrate (NFC). Fresh leachate performed with relatively low foaming capacity and foam stability, associated with low surfactant concentration. The pH value of the system was positively correlated with the concentration of anionic surfactants, indicating significant impacts on surfactant release in MSW. Since the distribution characteristics of linear alkylbenzene sulfonate (LAS) in leachate were consistent with the variety of foaming performances, LAS proved to be an indispensable surfactant in the leachate involved in this study, and its content proportion escalated to 92.87% in aged leachate.
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Affiliation(s)
- Lingyue Zhang
- School of Environment, Tsinghua University, Beijing 100084, China; Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Chu Tang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Mingchun Li
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Huijing Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Sijia Zhang
- Research Institute for Environmental Innovation (Suzhou), Tsinghua, Suzhou 215163, China
| | - Jianchao Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Xinwei Dong
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Ding Fang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Hao Bai
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yue Sun
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Dongbei Yue
- School of Environment, Tsinghua University, Beijing 100084, China; Research Institute for Environmental Innovation (Suzhou), Tsinghua, Suzhou 215163, China.
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5
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Zheng G, Schreder E, Sathyanarayana S, Salamova A. The first detection of quaternary ammonium compounds in breast milk: Implications for early-life exposure. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2022; 32:682-688. [PMID: 35437305 PMCID: PMC9015285 DOI: 10.1038/s41370-022-00439-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 03/25/2022] [Accepted: 03/31/2022] [Indexed: 05/08/2023]
Abstract
BACKGROUND Quaternary ammonium compounds (QACs), commonly used in cleaning, disinfecting, and personal care products, have recently gained worldwide attention due to the massive use of disinfectants during the COVID-19 pandemic. However, despite extensive use of these chemicals, no studies have focused on the analysis of QACs in human milk, a major route of exposure for infants. OBJECTIVE Our objectives were to identify and measure QACs in breast milk and evaluate early-life exposure to this group of compounds for nursing infants. METHODS Eighteen QACs, including 6 benzylalkyldimethyl ammonium compounds (BACs, with alkyl chain lengths of C8-C18), 6 dialkyldimethyl ammonium compounds (DDACs, C8-C18), and 6 alkyltrimethyl ammonium compounds (ATMACs, C8-C18), were measured in breast milk samples collected from U.S. mothers. Daily lactational intake was estimated based on the determined concentrations for 0-12 month old nursing infants. RESULTS Thirteen of the 18 QACs were detected in breast milk and 7 of them were found in more than half of the samples. The total QAC concentrations (ΣQAC) ranged from 0.33 to 7.4 ng/mL (median 1.5 ng/mL). The most abundant QAC was C14-BAC with a median concentration of 0.45 ng/mL. The highest median ΣQAC estimated daily intake (EDI) was determined for <1-month old infants based on the average (using the median concentration) and high (using the 95th percentile concentration) exposure scenarios (230 and 750 ng/kg body weight/day, respectively). SIGNIFICANCE Our findings provide the first evidence of the detection of several QACs in breast milk and identify breastfeeding as an exposure pathway to QACs for nursing infants. IMPACT STATEMENT Our findings provide the first evidence of QAC occurrence in breast milk and identify breastfeeding as one of the exposure pathways to QACs for nursing infants.
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Affiliation(s)
- Guomao Zheng
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | | | - Sheela Sathyanarayana
- Department of Pediatrics, University of Washington/Seattle Children's Research Institute, Seattle, WA, 91807, USA
| | - Amina Salamova
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, 30322, USA.
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6
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Arora J, Ranjan A, Chauhan A, Biswas R, Rajput VD, Sushkova S, Mandzhieva S, Minkina T, Jindal T. Surfactant Pollution, an Emerging Threat to Ecosystem: Approaches for Effective Bacterial Degradation. J Appl Microbiol 2022; 133:1229-1244. [PMID: 35598183 DOI: 10.1111/jam.15631] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/30/2022] [Accepted: 05/13/2022] [Indexed: 12/08/2022]
Abstract
The use of surfactants in households and industries is inevitable and so is their discharge into the environment, especially into the water bodies as effluents. Being surface-active agents, their utilization is mostly seen in soaps, detergents, personal care products, emulsifiers, wetting agents, etc. Anionic surfactants are the most used class. These surfactants are responsible for the foam and froth in the water bodies and cause potential adverse effects to both biotic and abiotic components of the ecosystem. Surfactants are capable of penetrating the cell membrane and thus cause toxicity to living organisms. Accumulation of these compounds has been known to cause significant gill damage and loss of sight in fish. Alteration of physiological and biochemical parameters of water decreases the amount of dissolved oxygen and thus affecting the entire ecosystem. Microbes utilizing surfactants as substrates for energy form the basis of the biodegradation of these compounds. The main organisms for surfactant biodegradation, both in sewage and natural waters, are bacteria. Several Pseudomonas and Bacillus spp. have shown efficient degradation of anionic surfactants namely: sodium dodecyl sulphate (SDS), linear alkylbenzene sulphonate (LAS), sodium dodecylbenzenesulphonate (SDBS). Also, several microbial consortia constituting Alcaligenes spp., Citrobacter spp., etc. have shown efficacy in the degradation of surfactants. The biodegradation efficiency studies of these microbes/microbial consortia would be of immense help in formulating better solutions for the bioremediation of surfactants and help to reduce their potential environmental hazards.
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Affiliation(s)
- Jayati Arora
- Amity Institute of Environmental Science, Amity University, Noida, Uttar Pradesh, India
| | - Anuj Ranjan
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Abhishek Chauhan
- Amity Institute of Environmental Toxicology, Safety and Management, Amity University, Noida, Uttar Pradesh, India
| | - Rima Biswas
- CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Svetlana Sushkova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Saglara Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Tanu Jindal
- Amity Institute of Environmental Toxicology, Safety and Management, Amity University, Noida, Uttar Pradesh, India
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7
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Ultrasound-assisted sample preparation for simultaneous extraction of anionic, cationic and non-ionic surfactants in sediment. Talanta 2022; 241:123220. [DOI: 10.1016/j.talanta.2022.123220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 11/23/2022]
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8
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Schinkel L, Lara-Martín PA, Giger W, Hollender J, Berg M. Synthetic surfactants in Swiss sewage sludges: Analytical challenges, concentrations and per capita loads. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:151361. [PMID: 34808174 DOI: 10.1016/j.scitotenv.2021.151361] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 06/13/2023]
Abstract
Surfactants are high-production-volume chemicals that are among the most abundant organic pollutants in municipal wastewater. In this study, sewage sludge samples of 36 Swiss wastewater treatment plants (WWTPs), serving 32% of the country's population, were analyzed for major surfactant classes by liquid chromatography mass spectrometry (LC-MS). The analyses required a variety of complementary approaches due to different analytical challenges, including matrix effects (which can affect adduct ion formation) and the lack of reference standards. The most abundant contaminants were linear alkylbenzene sulfonates (LAS; weighted mean [WM] concentration of 3700 μg g-1 dry weight), followed by secondary alkane sulfonates (SAS; 190 μg g-1). Alcohol polyethoxylates (AEO; 8.3 μg g-1), nonylphenol polyethoxylates (NPEO; 16 μg g-1), nonylphenol (NP; 3.1 μg g-1), nonylphenol ethoxy carboxylates (NPEC; 0.35 μg g-1) and tert-octylphenol (tert-OP, 1.8 μg g-1) were present at much lower concentrations. This concentration pattern agrees with the production volumes of the surfactants and their fates in WWTPs. Branched AEO homologues dominated over linear homologues, probably due to higher persistence. Sludge concentrations of LAS, SAS, and NP were positively correlated with the residence time in the anaerobic digester. Derivation of the per capita loads successfully revealed potential industrial/commercial emission sources. Comparison of recent versus historic data showed a decrease in NPEO and NP levels by one or two orders of magnitude since their ban in the 1980s. By contrast, LAS still exhibit similar concentrations compared to 30 years ago.
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Affiliation(s)
- Lena Schinkel
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland.
| | - Pablo A Lara-Martín
- Department of Physical Chemistry, Faculty of Marine and Environmental Sciences, University of Cadiz, Puerto Real 11510, Spain
| | - Walter Giger
- Giger Research Consulting, 8049 Zürich, Switzerland
| | - Juliane Hollender
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH Zurich, 8092 Zurich, Switzerland
| | - Michael Berg
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland.
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9
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Poklonov VA, Glebov VV, Askarova DA, Erofeeva VV, Anikina EV. Study of the Toxicity of Synthetic Surfactant-Containing Composite Detergents on Plant Hydrobionts under Laboratory Conditions. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363221130193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Athullya MK, Dineep D, Mathew ML, Aravindakumar CT, Aravind UK. Identification of micropollutants from graywater of different complexity and remediation using multilayered membranes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:4206-4218. [PMID: 34405325 DOI: 10.1007/s11356-021-15516-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
Graywater reuse is one of the important concepts in attaining water sustainability. A major challenge in this area is to realize various components present in graywater. The present study involves the identification of the chemical components of graywater collected from three different environments and to investigate the efficiency of removal of some of these chemical components using ultrafiltration membranes (polyelectrolyte multilayer (PEM) membranes). The chemical components were analyzed using liquid chromatography connected with quadrupole time-of-flight (UPLC-Q-ToF-MS). A number of micropollutants including surfactants and certain contaminants of emerging concern (CECs) were identified from these samples. Out of 16 compounds identified, 13 were surfactants and the remaining were caffeine, oxybenzone, and benzophenone. These surfactants are mostly the ingredients of various detergents. Low-pressure filtration studies of the collected samples were carried out utilizing chitosan/polyacrylic acid (CHI/PAA) multilayer membranes. A 5.5 bilayer membrane showed more than 95% rejection of the identified compounds in the selected samples and significant improvement in the water quality parameters. This demonstrates that the membrane used in this work is effective in the removal of various chemicals from graywater as well as enhancing the water quality.
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Affiliation(s)
- Manappillil K Athullya
- School of Environmental Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Devadasan Dineep
- Inter University Instrumentation Centre, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Mary L Mathew
- School of Environmental Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Charuvila T Aravindakumar
- School of Environmental Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India.
- Inter University Instrumentation Centre, Mahatma Gandhi University, Kottayam, Kerala, 686560, India.
| | - Usha K Aravind
- School of Environmental Studies, Cochin University of Science and Technology, Kochi, Kerala, 682022, India.
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11
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McLaughlin MC, McDevitt B, Miller H, Amundson KK, Wilkins MJ, Warner NR, Blotevogel J, Borch T. Constructed wetlands for polishing oil and gas produced water releases. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2021; 23:1961-1976. [PMID: 34723304 DOI: 10.1039/d1em00311a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Produced water (PW) is the largest waste stream associated with oil and gas (O&G) operations and contains petroleum hydrocarbons, heavy metals, salts, naturally occurring radioactive materials and any remaining chemical additives. In some areas in Wyoming, constructed wetlands (CWs) are used to polish PW downstream of National Pollutant Discharge Elimination System (NPDES) PW release points. In recent years, there has been increased interest in finding lower cost options, such as CWs, for PW treatment. The goal of this study was to understand the efficacy of removal and environmental fate of O&G organic chemical additives in CW systems used to treat PW released for agricultural beneficial reuse. To achieve this goal, we analyzed water and sediment samples for organic O&G chemical additives and conducted 16S rRNA gene sequencing for microbial community characterization on three such systems in Wyoming, USA. Three surfactants (polyethylene glycols, polypropylene glycols, and nonylphenol ethoxylates) and one biocide (alkyldimethylammonium chloride) were detected in all three PW discharges and >94% removal of all species from PW was achieved after treatment in two CWs in series. These O&G extraction additives were detected in all sediment samples collected downstream of PW discharges. Chemical and microbial analyses indicated that sorption and biodegradation were the main attenuation mechanisms for these species. Additionally, all three discharges showed a trend of increasingly diverse, but similar, microbial communities with greater distance from NPDES PW discharge points. Results of this study can be used to inform design and management of constructed wetlands for produced water treatment.
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Affiliation(s)
- Molly C McLaughlin
- Department of Civil and Environmental Engineering, Colorado State University, 1320 Campus Delivery, Fort Collins, CO, 80523, USA.
| | - Bonnie McDevitt
- Department of Civil and Environmental Engineering, The Pennsylvania State University, 212 Sackett Building, University Park, PA 16801, USA
| | - Hannah Miller
- Department of Soil and Crop Sciences, Colorado State University, 1170 Campus Delivery, Fort Collins, Colorado 80523, USA
| | - Kaela K Amundson
- Department of Soil and Crop Sciences, Colorado State University, 1170 Campus Delivery, Fort Collins, Colorado 80523, USA
| | - Michael J Wilkins
- Department of Soil and Crop Sciences, Colorado State University, 1170 Campus Delivery, Fort Collins, Colorado 80523, USA
| | - Nathaniel R Warner
- Department of Civil and Environmental Engineering, The Pennsylvania State University, 212 Sackett Building, University Park, PA 16801, USA
| | - Jens Blotevogel
- Department of Civil and Environmental Engineering, Colorado State University, 1320 Campus Delivery, Fort Collins, CO, 80523, USA.
| | - Thomas Borch
- Department of Civil and Environmental Engineering, Colorado State University, 1320 Campus Delivery, Fort Collins, CO, 80523, USA.
- Department of Soil and Crop Sciences, Colorado State University, 1170 Campus Delivery, Fort Collins, Colorado 80523, USA
- Department of Chemistry, Colorado State University, 1872 Campus Delivery, Fort Collins, Colorado, 80523, USA
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12
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Zheng G, Webster TF, Salamova A. Quaternary Ammonium Compounds: Bioaccumulation Potentials in Humans and Levels in Blood before and during the Covid-19 Pandemic. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:14689-14698. [PMID: 34662096 PMCID: PMC8547165 DOI: 10.1021/acs.est.1c01654] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 05/10/2023]
Abstract
Quaternary ammonium compounds (QACs) are commonly used in a variety of consumer, pharmaceutical, and medical products. In this study, bioaccumulation potentials of 18 QACs with alkyl chain lengths of C8-C18 were determined in the in vitro-in vivo extrapolation (IVIVE) model using the results of human hepatic metabolism and serum protein binding experiments. The slowest in vivo clearance rates were estimated for C12-QACs, suggesting that these compounds may preferentially build up in blood. The bioaccumulation of QACs was further confirmed by the analysis of human blood (sera) samples (n = 222). Fifteen out of the 18 targeted QACs were detected in blood with the ΣQAC concentrations reaching up to 68.6 ng/mL. The blood samples were collected during two distinct time periods: before the outbreak of the COVID-19 pandemic (2019; n = 111) and during the pandemic (2020, n = 111). The ΣQAC concentrations were significantly higher in samples collected during the pandemic (median 6.04 ng/mL) than in those collected before (median 3.41 ng/mL). This is the first comprehensive study on the bioaccumulation and biomonitoring of the three major QAC groups and our results provide valuable information for future epidemiological, toxicological, and risk assessment studies targeting these chemicals.
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Affiliation(s)
- Guomao Zheng
- O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington 47405, United States
| | - Thomas F. Webster
- School of Public Health, Boston University, Boston, Massachusetts 02118, United States
| | - Amina Salamova
- O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington 47405, United States
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13
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Badmus SO, Amusa HK, Oyehan TA, Saleh TA. Environmental risks and toxicity of surfactants: overview of analysis, assessment, and remediation techniques. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:62085-62104. [PMID: 34590224 PMCID: PMC8480275 DOI: 10.1007/s11356-021-16483-w] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/07/2021] [Indexed: 05/08/2023]
Abstract
This work comprehensively reviewed the toxicity and risks of various surfactants and their degraded products in the environmental matrices, various analytical procedures, and remediation methods for these surfactants. The findings revealed that the elevated concentration of surfactants and their degraded products disrupt microbial dynamics and their important biogeochemical processes, hinder plant-surviving processes and their ecological niche, and retard the human organic and systemic functionalities. The enormous adverse effects of surfactants on health and the environment necessitate the need to develop, select, and advance the various analytical and assessment techniques to achieve effective identification and quantification of several surfactants in different environmental matrices. Considering the presence of surfactants in trace concentration and environmental matrices, excellent analysis can only be achieved with appropriate extraction, purification, and preconcentration. Despite these pre-treatment procedures, the chromatographic technique is the preferred analytical technique considering its advancement and shortcomings of other techniques. In the literature, the choice or selection of remediation techniques for surfactants depends largely on eco-friendliness, cost-implications, energy requirements, regeneration potential, and generated sludge composition and volume. Hence, the applications of foam fractionation, electrochemical advanced oxidation processes, thermophilic aerobic membranes reactors, and advanced adsorbents are impressive in the clean-up of the surfactants in the environment. This article presents a compendium of knowledge on environmental toxicity and risks, analytical techniques, and remediation methods of surfactants as a guide for policymakers and researchers.
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Affiliation(s)
- Suaibu O Badmus
- Center for Integrative Petroleum Research, King Fahd University of Petroleum & Minerals, 31261, Dhahran, Saudi Arabia
| | - Hussein K Amusa
- Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Tajudeen A Oyehan
- Center for Integrative Petroleum Research, King Fahd University of Petroleum & Minerals, 31261, Dhahran, Saudi Arabia
| | - Tawfik A Saleh
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
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14
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Liu W, Liu D, Yin H, Yang C, Lu K. Foam fractionation for the separation of SDBS from its aqueous solution: Process optimization and property test. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Abbott T, Kor-Bicakci G, Islam MS, Eskicioglu C. A Review on the Fate of Legacy and Alternative Antimicrobials and Their Metabolites during Wastewater and Sludge Treatment. Int J Mol Sci 2020; 21:ijms21239241. [PMID: 33287448 PMCID: PMC7729486 DOI: 10.3390/ijms21239241] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/30/2020] [Accepted: 11/30/2020] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial compounds are used in a broad range of personal care, consumer and healthcare products and are frequently encountered in modern life. The use of these compounds is being reexamined as their safety, effectiveness and necessity are increasingly being questioned by regulators and consumers alike. Wastewater often contains significant amounts of these chemicals, much of which ends up being released into the environment as existing wastewater and sludge treatment processes are simply not designed to treat many of these contaminants. Furthermore, many biotic and abiotic processes during wastewater treatment can generate significant quantities of potentially toxic and persistent antimicrobial metabolites and byproducts, many of which may be even more concerning than their parent antimicrobials. This review article explores the occurrence and fate of two of the most common legacy antimicrobials, triclosan and triclocarban, their metabolites/byproducts during wastewater and sludge treatment and their potential impacts on the environment. This article also explores the fate and transformation of emerging alternative antimicrobials and addresses some of the growing concerns regarding these compounds. This is becoming increasingly important as consumers and regulators alike shift away from legacy antimicrobials to alternative chemicals which may have similar environmental and human health concerns.
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Affiliation(s)
- Timothy Abbott
- UBC Bioreactor Technology Group, School of Engineering, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada; (T.A.); (G.K.-B.); (M.S.I.)
| | - Gokce Kor-Bicakci
- UBC Bioreactor Technology Group, School of Engineering, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada; (T.A.); (G.K.-B.); (M.S.I.)
- Institute of Environmental Sciences, Bogazici University, Bebek, 34342 Istanbul, Turkey
| | - Mohammad S. Islam
- UBC Bioreactor Technology Group, School of Engineering, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada; (T.A.); (G.K.-B.); (M.S.I.)
| | - Cigdem Eskicioglu
- UBC Bioreactor Technology Group, School of Engineering, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada; (T.A.); (G.K.-B.); (M.S.I.)
- Correspondence: ; Tel.: +1-250-807-8544 (C.E)
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16
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Yang L, Xiao S, Yang Q, Luan T, Tam NFY. Recovery of subtropical coastal intertidal system prokaryotes from a destruction event and the role of extracellular polymeric substances in the presence of endocrine disrupting chemicals. ENVIRONMENT INTERNATIONAL 2020; 144:106023. [PMID: 32822926 DOI: 10.1016/j.envint.2020.106023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Intertidal sediments constitute the micro-environment for the co-existence of endocrine disrupting chemicals (EDCs) and biofilms consisting of the microbial community and extracellular polymeric substances (EPS). However, the interactions and the resulting eco-function of this community are complex and poorly characterized, especially after a destruction event. This study evaluates the re-construction of biofilms in terms of the abundance of prokaryotic cells and related EPS characterization in two destroyed sedimentary matrices from subtropical environments simulated by sterilization in the presence of EDCs and investigates the role of EPS. The results show that benthic prokaryotes recover from the deposition of active prokaryotes in natural seawater and form biofilms after sterilization. Sterilization triggers the release of polysaccharides and protein from lysed native microbial cells and bound EPS in sedimentary organic matter, thus increasing their concentrations. The increased portion of EPS also acts as a persistent stress on re-colonizing prokaryotes and leads to the overproduction of sedimentary EPS. Due to the protective role mediated by EPS, the effect of EDCs on biofilm composition in sterilized sediment is not significant. The sedimentary matrix is the most important determinant of the composition of the biofilm and the occurrence of EDCs. At the end of an 84-day experiment, the abundance of prokaryotic cells and the concentrations of polysaccharides and protein in mangrove sediment are 1.6-1.8 times higher than those in sandflat sediment, regardless of EDCs. Sandflat sediment exhibits higher concentrations of nonylphenol and bisphenol A but a lower concentration of 17α-ethinylestradiol than mangrove sediment. This study enhances our understanding of the role of sedimentary biofilms and the fate of EDCs in intertidal systems and highlights the benefit of a destructive event in enhancing ecosystem function, particularly tolerance to EDC adversity due to EPS production.
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Affiliation(s)
- Lihua Yang
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China; Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region
| | - Sirui Xiao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region; State Key Laboratory of Biocontrol, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Qian Yang
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Tiangang Luan
- State Key Laboratory of Biocontrol, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Nora F Y Tam
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region.
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17
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Li J, Gao J, Thai PK, Mueller JF, Yuan Z, Jiang G. Transformation of Illicit Drugs and Pharmaceuticals in Sewer Sediments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:13056-13065. [PMID: 32951431 DOI: 10.1021/acs.est.0c04266] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In-sewer stability of human excreted biomarkers is a critical factor of wastewater-based epidemiology in back-estimating illicit drug and pharmaceutical use in the community. Biomarker stability has been investigated in sewers with the presence of biofilms, but the understanding in sewer sediments is still lacking. This study for the first time employed a laboratory sediment reactor to measure 18 illicit drug and pharmaceutical biomarkers under gravity sewer environments with the presence of sediments. Biomarkers exhibited various stability patterns due to transformation processes occurring in the bulk wastewater and sediments. The attenuation of a biomarker by sediments is driven by complex processes involving biodegradation, diffusion, and sorption, which is directly proportional to the ratio of sediment surface area against wastewater volume. The sediment-driven transformation coefficients of biomarkers are higher than the accordingly biofilm-mediated rates because of stronger microbial activities in sediments. Additionally, the stability of most biomarkers was insensitive to the natural pH variation in sewers, except for a few compounds (e.g., methadone, ketamine, and paracetamol) susceptible to pH changes. In general, this study delineates the stability data of various biomarkers in gravity sewers with sediments, which are novel and long-missing information for wastewater-based epidemiology and improve the reliability of back-estimation in complex sewer networks.
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Affiliation(s)
- Jiaying Li
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Jianfa Gao
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane, QLD 4102, Australia
- College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen 518060, China
| | - Phong K Thai
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane, QLD 4102, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane, QLD 4102, Australia
| | - Zhiguo Yuan
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Guangming Jiang
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD 4072, Australia
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health and Medical Research Institute (IHMRI), University of Wollongong, Wollongong 2522, Australia
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18
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Zheng G, Filippelli GM, Salamova A. Increased Indoor Exposure to Commonly Used Disinfectants during the COVID-19 Pandemic. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 2020; 7:760-765. [PMID: 37566290 PMCID: PMC7482546 DOI: 10.1021/acs.estlett.0c00587] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 05/20/2023]
Abstract
Quaternary ammonium compounds (QACs or "quats") make up a class of chemicals used as disinfectants in cleaning and other consumer products. While disinfection is recommended for maintaining a safe environment during the COVID-19 pandemic, the increased use of QACs is concerning as exposure to these compounds has been associated with adverse effects on reproductive and respiratory systems. We have determined the occurrence of 19 QACs in residential dust collected before and during the COVID-19 pandemic. QACs were detected in >90% of the samples collected during the pandemic at concentrations ranging from 1.95 to 531 μg/g (n = 40; median of 58.9 μg/g). The total QAC concentrations in these samples were significantly higher than in samples collected before the COVID-19 pandemic (p < 0.05; n = 21; median of 36.3 μg/g). Higher QAC concentrations were found in households that generally disinfected more frequently (p < 0.05). Disinfecting products commonly used in these homes were analyzed, and the QAC profiles in dust and in products were similar, suggesting that these products can be a significant source of QACs. Our findings indicate that indoor exposure to QACs is widespread and has increased during the pandemic.
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Affiliation(s)
- Guomao Zheng
- Paul H. O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405
| | - Gabriel M. Filippelli
- Center for Urban Health, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, Indiana 46202
- Environmental Resilience Institute, Indiana University, Bloomington, Indiana 47405
| | - Amina Salamova
- Paul H. O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405
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19
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Hora PI, Pati SG, McNamara PJ, Arnold WA. Increased Use of Quaternary Ammonium Compounds during the SARS-CoV-2 Pandemic and Beyond: Consideration of Environmental Implications. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 2020; 7:622-631. [PMID: 37566314 PMCID: PMC7341688 DOI: 10.1021/acs.estlett.0c00437] [Citation(s) in RCA: 190] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 05/17/2023]
Abstract
Quaternary ammonium compounds (QACs) are active ingredients in over 200 disinfectants currently recommended by the U.S. EPA for use to inactivate the SARS-CoV-2 (COVID-19) virus. The amounts of these compounds used in household, workplace, and industry settings has very likely increased, and usage will continue to be elevated given the scope of the pandemic. QACs have been previously detected in wastewater, surface waters, and sediments, and effects on antibiotic resistance have been explored. Thus, it is important to assess potential environmental and engineering impacts of elevated QAC usage, which may include disruption of wastewater treatment unit operations, proliferation of antibiotic resistance, formation of nitrosamine disinfection byproducts, and impacts on biota in surface waters. The threat caused by COVID-19 is clear, and a reasonable response is elevated use of QACs to mitigate spread of infection. Exploration of potential effects, environmental fate, and technologies to minimize environmental releases of QACs, however, is warranted.
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Affiliation(s)
- Priya I. Hora
- Department of Civil, Environmental, and Geo-
Engineering, University of Minnesota − Twin Cities, 500
Pillsbury Drive SE, Minneapolis, Minnesota 55455, United States
| | - Sarah G. Pati
- Department of Environmental Sciences,
University of Basel, Bernoullistrasse 30, 4056 Basel,
Switzerland
| | - Patrick J. McNamara
- Department of Civil, Construction, and Environmental
Engineering, Marquette University, P.O. Box 1881, Milwaukee,
Wisconsin 53233, United States
| | - William A. Arnold
- Department of Civil, Environmental, and Geo-
Engineering, University of Minnesota − Twin Cities, 500
Pillsbury Drive SE, Minneapolis, Minnesota 55455, United States
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20
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Fernandes S, Nogueira V, Antunes F, Lopes I, Pereira R. Studying the toxicity of SLE nS-LAS micelles to collembolans and plants: Influence of ethylene oxide units in the head groups. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122522. [PMID: 32200241 DOI: 10.1016/j.jhazmat.2020.122522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/09/2020] [Accepted: 03/10/2020] [Indexed: 06/10/2023]
Abstract
Mixed micelles of linear alkylbenzene sulfonic acid (LAS) and ether sulfate-based surfactants (SLEnS) can be added in household products and cleaning agents. SLEnS with higher ethylene oxide (EO) units in the head groups have economic and environmental advantages. This work aims to assess the influence of the number of EO units in the ecotoxicity of seven variants of SLEnS-LAS micelles (0-50 EO units) in soils. Ecotoxicological tests were carried out to assess emergence and growth of four plants species and reproduction of collembolans. Most of the variants inhibited plants growth at the highest concentrations (1237.5 μg SLEnS kg-1 of soildw). For reproduction, lower number of EO units resulted in EC50 from 924.2 (95 % CL: 760.7-1063.4) to 963.2 (95 % CL: 676.9-1249.6) μg SLEnS kg-1 of soildw, whereas for higher number of EO units (50 and 30) no inhibition was reported. Based on these results, we suggest that a higher number of EO units contribute to less hazardous formulations, confirming that different designs of surfactants may contribute to changes in the responses of terrestrial organisms. Therefore, we demonstrate that standardized ecotoxicological assays may contribute to more sustainable and effective formulations, when used upstream, prior to manufacture and marketing.
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Affiliation(s)
- S Fernandes
- GreenUPorto - Sustainable Agrifood Production Research Center and Department of Biology, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal.
| | - V Nogueira
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
| | - F Antunes
- Department of Chemical Engineering & Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), University of Coimbra, Coimbra, Portugal
| | - I Lopes
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, Aveiro, Portugal
| | - R Pereira
- GreenUPorto - Sustainable Agrifood Production Research Center and Department of Biology, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
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21
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Hora PI, Arnold WA. Photochemical fate of quaternary ammonium compounds in river water. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:1368-1381. [PMID: 32406464 DOI: 10.1039/d0em00086h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Quaternary ammonium compounds (QACs) are not completely removed during wastewater treatment and are frequently detected in surface waters and sediments. The photochemical transformation of QACs has not been thoroughly investigated as a potential degradation pathway affecting their fate in the environment. Kinetic studies of common QACs with and without aromatic groups under simulated and natural sunlight conditions were performed with model sensitizers and dissolved organic matter to estimate photochemical half-lives in the aquatic environment. All QACs investigated react with hydroxyl radicals at diffusion-controlled rates (∼2.9 × 109 to 1.2 × 1010 M-1 s-1). Benzethonium reacted via direct photolysis (ΦBZT,outdoor = 1.7 × 10-2 (mol Ei-1)). Benzethonium also reacted with the triplet excited state model sensitizer 2-acetylnaphthalene, but evidence suggests this reaction pathway is unimportant in natural waters due to faster quenching of the triplet 2-acetylnapthalene by oxygen. Reactivity with singlet oxygen for the QACs was minimal. Overall, reactions with hydroxyl radicals will dominate over direct photolysis due to limited spectral overlap of sunlight emission and QAC absorbance. Photolysis half-lives are predicted to be 12 to 94 days, indicating slow abiotic degradation in surface water.
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Affiliation(s)
- Priya I Hora
- Department of Civil, Environmental, and Geo- Engineering, University of Minnesota - Twin Cities, 500 Pillsbury Drive SE, Minneapolis, Minnesota 55455, USA.
| | - William A Arnold
- Department of Civil, Environmental, and Geo- Engineering, University of Minnesota - Twin Cities, 500 Pillsbury Drive SE, Minneapolis, Minnesota 55455, USA.
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22
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Zhang ZG, Wu QT, Shang E, Wang X, Wang K, Zhao J, Duan J, Liu Y, Li Y. Aggregation kinetics and mechanisms of silver nanoparticles in simulated pollution water under UV light irradiation. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:840-849. [PMID: 31730245 DOI: 10.1002/wer.1276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/25/2019] [Accepted: 11/10/2019] [Indexed: 05/25/2023]
Abstract
This paper investigated the effect mechanism of complex components (fulvic acid [FA], sodium dodecylbenzene sulfonate [SDBS], and sodium nitrate [NaNO3 ]) on the aggregation kinetics of polyvinylpyrrolidone-modified silver nanoparticles (PVP-AgNPs) under UV irradiation. The results showed that FA and NaNO3 alone did not cause aggregation due to the high steric hindrance and/or electrostatic repulsive forces. In high concentration of SDBS solution (20-50 mM), the stability of PVP-AgNPs was reduced by adsorbing SDBS on nanoparticle surface and replacing their PVP coatings. A mixed system of two pollutants had a synergistic effect on PVP-AgNPs aggregation. In the mixed system of SDBS and FA, the interaction of SDBS and PVP-AgNPs dominated the aggregation of PVP-AgNPs. NaNO3 significantly improved the aggregation rate of PVP-AgNPs in SDBS solution due to the charge neutralization effect of electrolyte. In 20 mg/L FA solution, the aggregation rate increased slightly with increasing NaNO3 concentration from 50 to 200 mM due to the charge neutralization effect, while the hydrodynamic diameters of PVP-AgNPs increased linearly and rapidly to micrometer size because the spatial conformation of adsorbed FA became compact in high-salinity solution. The calculation results of eDLVO theory were basically consistent with most of the experimental results. PRACTITIONER POINTS: PVP-AgNPs was uniformly dispersed in NaNO3 or FA solution under UV irradiation. PVP-AgNPs formed aggregates in SDBS solutions under UV irradiation. A system with two mixed pollutants had a synergistic effect on promoting aggregation of PVP-AgNPs. eDLVO theory could explain the aggregation results in different chemical conditions except in NaNO3 solution.
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Affiliation(s)
- Zhi-Guo Zhang
- College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
| | - Qi-Tang Wu
- College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
| | - Enxiang Shang
- College of Science and Technology, Hebei Agricultural University, Huanghua, China
| | - Xinjie Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, China
| | - Kaixuan Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, China
| | - Jian Zhao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, China
| | - Jiajun Duan
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, China
| | - Yuan Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, China
| | - Yang Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, China
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Masoudian Z, Salehi-Lisar SY, Norastehnia A. Phytoremediation potential of Azolla filiculoides for sodium dodecyl benzene sulfonate (SDBS) surfactant considering some physiological responses, effects of operational parameters and biodegradation of surfactant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:20358-20369. [PMID: 32240507 DOI: 10.1007/s11356-020-08286-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 03/02/2020] [Indexed: 05/27/2023]
Abstract
In this study, phytoremediation potential of the Azolla filiculoides Lam. was examined for sodium dodecyl benzene sulfonate (SDBS) anionic surfactant. Furthermore, the effect of surfactant treatment on some physiological characteristics of Azolla was studied. The surfactant bioremoval efficiency was studied under variable conditions including treatment time, initial surfactant concentration, Azolla fresh weight, temperature, and pH. Results showed that surfactant removal efficiency of A. filiculoides was significantly enhanced with increasing of temperature, initial surfactant concentration, and amount of Azolla. SDBS led to a reduction in growth rate and total chlorophyll content, but effect index of Azolla increased by higher concentrations of surfactant. In contrast, antioxidant enzymes activities including polyphenol oxidase, ascorbate peroxidase, catalase, and peroxidase, as well as nonenzymatic antioxidants such as total carotenoids and anthocyanin contents significantly increased probably due to the ability of plant to overcome oxidative stress induced by SDBS. An increase in antioxidant activity based on 2, 2-diphenyl-1-picrylhydrazil (DPPH) confirmed this fact. An increase in the amount of hydrogen peroxide and reduction in membrane stability index indicated the induction of oxidative stress. As a result of SDBS biodegradation, 6 homologs of sulfophenyl carboxylates (SPCs) including C2 to C7-SPC and benzenesulfonate ring were identified by liquid chromatography-mass spectroscopy (LC-MS) analysis.
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Affiliation(s)
- Zahra Masoudian
- Department of Plant Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, East Azerbaijan, 5166616471, Iran
| | - Seyed Yahya Salehi-Lisar
- Department of Plant Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, East Azerbaijan, 5166616471, Iran.
| | - Akbar Norastehnia
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
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24
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Ndabambi M, Kwon JH. Benzalkonium ion sorption to peat and clays: Relative contributions of ion exchange and van der Waals interactions. CHEMOSPHERE 2020; 247:125924. [PMID: 31978661 DOI: 10.1016/j.chemosphere.2020.125924] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/11/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Due to their use in various domestic and industrial formulations, benzalkonium compounds have been isolated in many environmental matrices. Sorption to soil components has been shown to play a key role in their environmental fate. Whereas sorption of benzalkonium compounds to soils is attributed to cation exchange and van der Waals forces, the relative contributions of these two mechanisms at environmental levels have not been clearly defined. In this study a previously reported algal toxicity assay-based method was employed to determine the distribution coefficients (Kd) of benzalkonium compounds between water and soil components, at environmental concentrations. Cation exchange capacity corrected Kd values for organic matter and clays were all within one order of magnitude. This implies that ion exchange is the dominant mechanism of sorption for benzalkonium compounds. When the sorption data were used to compute sorption energies for four homologues of benzalkonium ions, the magnitude of the free energy change of sorption increased with size of the molecule. The increase in sorption energy could be partly explained by increased energy of hydration with addition of methylene groups to the alkyl chain. A model that predicts sorption coefficients of benzalkonium compounds to soils using organic carbon content and cation exchange capacity was also defined. When tested using an artificial soil, the model estimates were all within one order of magnitude of the experimental values.
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Affiliation(s)
- Mlamuli Ndabambi
- Division of Environmental Science and Ecological Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul, 02841, Republic of Korea; Department of Civil and Environmental Engineering, Pusan National University, 63 Beon-gil, Busandaehak-ro, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Jung-Hwan Kwon
- Division of Environmental Science and Ecological Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul, 02841, Republic of Korea.
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25
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Pati SG, Arnold WA. Comprehensive screening of quaternary ammonium surfactants and ionic liquids in wastewater effluents and lake sediments. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:430-441. [PMID: 32003378 DOI: 10.1039/c9em00554d] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Quaternary ammonium compounds (QACs) are widely applied as surfactants and biocides in cleaning and personal-care products. Because of incomplete removal during wastewater treatment, QACs are present in wastewater effluents, with which they are discharged into natural waters, where they accumulate in sediments. To assess the levels of QACs in aquatic environments, a liquid chromatography high-resolution mass spectrometry method using both target and suspect screening was developed. The water and sediment sample preparation, measurement, and data analysis workflow were optimized for 22 target compounds with a wide range of hydrophobicity, including ionic liquids that have potential use as solvents and QACs common in personal-care and sanitizing products. In wastewater effluents, average concentrations of all target and suspect QACs combined ranged from 0.4 μg L-1 to 6.6 μg L-1. Various homologs of benzylalkyldimethylammonium (BAC) and dialkyldimethylammonium (DADMAC) as well as the ionic liquid butylpyridinium and 15 suspect QACs were detected in at least one wastewater effluent sample. A spatial profile of sediment samples in a lake demonstrated potential inputs from both municipal wastewater effluent and agricultural sources for BACs. In sediment cores, two distinct trends of temporal QAC accumulation were observed. In lakes with large watersheds and mixed domestic and industrial wastewater sources (Lake Pepin and Duluth Harbor), peak concentrations of QACs were found at depths corresponding to deposition in the 1980s and decreases after this time are attributed to improved wastewater treatment and source control. In a smaller lake with predominantly domestic wastewater inputs (Lake Winona), concentrations of QACs increased slowly over time until today.
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Affiliation(s)
- Sarah G Pati
- Department of Civil, Environmental, and Geo- Engineering, University of Minnesota, 500 Pillsbury Drive SE, Minneapolis, Minnesota 55455-0116, USA.
| | - William A Arnold
- Department of Civil, Environmental, and Geo- Engineering, University of Minnesota, 500 Pillsbury Drive SE, Minneapolis, Minnesota 55455-0116, USA.
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26
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Porter AW, Wolfson SJ, Häggblom M, Young LY. Microbial transformation of widely used pharmaceutical and personal care product compounds. F1000Res 2020; 9. [PMID: 32148768 PMCID: PMC7043110 DOI: 10.12688/f1000research.21827.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/18/2020] [Indexed: 01/17/2023] Open
Abstract
Pharmaceutical and personal care products (PPCPs) are commonly used chemicals that are increasingly detected in urban-impacted environments, particularly those receiving treated wastewater. PPCPs may have toxicological effects on the macrofauna that are exposed through contaminated water; thus, there is interest in microbially mediated transformations that may degrade PPCPs. This review discusses specific examples of PPCP transformations that may occur in anoxic environments, including O-methylation and O-demethylation.
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Affiliation(s)
- Abigail W Porter
- Department of Environmental Sciences, School of Environmental and Biological Sciences, Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Sarah J Wolfson
- Department of Environmental Sciences, School of Environmental and Biological Sciences, Rutgers, the State University of New Jersey, New Brunswick, NJ, USA.,Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Max Häggblom
- Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Lily Y Young
- Department of Environmental Sciences, School of Environmental and Biological Sciences, Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
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27
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Zhang W, Zhang L, Hua T, Li Y, Zhou X, Wang W, You Z, Wang H, Li M. The mechanism for adsorption of Cr(VI) ions by PE microplastics in ternary system of natural water environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 257:113440. [PMID: 31706754 DOI: 10.1016/j.envpol.2019.113440] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 09/20/2019] [Accepted: 10/18/2019] [Indexed: 05/11/2023]
Abstract
More attention was paid to the attachment between microplastics and environmental pollutants. The adsorption performance of Polyethylene (PE) beads (a typical type of microplastics) and Cr(VI) ions with the existence of sodium dodecyl benzene sulfonate (SDBS) was investigated in this paper. The adsorption experiments of Cr(VI) ions by PE microplastics were conducted at different conditions, i.e. PE doses, pH and SDBS concentrations, respectively. The adsorption capability of Cr(VI) ions was increased from 0.39 to 1.36 mg⋅g-1 when the dosage of PE microplastics was increased from 2 to 14 g ⋅L-1 at pH of 5 with addition of SDBS, compared with increasing adsorption capability from 0.03 to 0.32 mg⋅g-1 without addition of SDBS. The pH would influence the adsorption capability with and without the addition of SDBS. When the pH was less than 6, the adsorption capability of Cr(VI) would be promoted by the addition of SDBS; however, there was a contrast tendency when the pH was more than 6, which was attributed to that SDBS would compete with CrO42- for occupying the adsorption sites of PE microplastic. The SDBS concentration would affect the adsorption performance of Cr(VI) ions onto PE microplastics. The peak of the adsorption capacity was at SDBS concentration between 1 and 1.5 mM. This research would provide a basis for investigating the influence of SDBS on adsorption performance of heavy metal by PE microplastics to simulate the surface attachment model of those three kinds of pollutants.
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Affiliation(s)
- Wei Zhang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China; Zhengzhou Key Laboratory of Water Resource and Environment, Zhengzhou, 450001, China; Henan Key Laboratory of Groundwater Pollution Prevention and Rehabilitation, Zhengzhou, 450001, China; Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, Henan, PR China
| | - Liying Zhang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China; Zhengzhou Key Laboratory of Water Resource and Environment, Zhengzhou, 450001, China; Henan Key Laboratory of Groundwater Pollution Prevention and Rehabilitation, Zhengzhou, 450001, China
| | - Tian Hua
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China; Zhengzhou Key Laboratory of Water Resource and Environment, Zhengzhou, 450001, China; Henan Key Laboratory of Groundwater Pollution Prevention and Rehabilitation, Zhengzhou, 450001, China
| | - Yonggan Li
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China; Zhengzhou Key Laboratory of Water Resource and Environment, Zhengzhou, 450001, China; Henan Key Laboratory of Groundwater Pollution Prevention and Rehabilitation, Zhengzhou, 450001, China
| | - Xing Zhou
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, PR China
| | - Wenxia Wang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China; Zhengzhou Key Laboratory of Water Resource and Environment, Zhengzhou, 450001, China; Henan Key Laboratory of Groundwater Pollution Prevention and Rehabilitation, Zhengzhou, 450001, China
| | - Zhangchao You
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China; Zhengzhou Key Laboratory of Water Resource and Environment, Zhengzhou, 450001, China; Henan Key Laboratory of Groundwater Pollution Prevention and Rehabilitation, Zhengzhou, 450001, China
| | - Huiliang Wang
- School of Water Conservancy & Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China.
| | - Mengjia Li
- School of Materials Science and Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China
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28
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Shiu RF, Jiang JJ, Kao HY, Fang MD, Liang YJ, Tang CC, Lee CL. Alkylphenol ethoxylate metabolites in coastal sediments off southwestern Taiwan: Spatiotemporal variations, possible sources, and ecological risk. CHEMOSPHERE 2019; 225:9-18. [PMID: 30856475 DOI: 10.1016/j.chemosphere.2019.02.136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/17/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
Alkylphenol ethoxylates (APEOs) are one of the most widely used classes of surfactants, but they are also ubiquitous environmental pollutants and known endocrin-disrupting chemicals. This study is the first to investigate the spatiotemporal variations and possible sources of APEOs and their metabolites, including nonylphenol ethoxylates (NPEOs) and octylphenol ethoxylates (OPEOs), in coastal sediments off southwestern Taiwan. The highest APEO concentration in the dry season was observed for the Kaohsiung coastal area, whereas the highest alkylphenol (AP) concentration in the wet season was found offshore at the Tainan Canal exit. No continuous accumulation of alkylphenol metabolites was evident in the area. One possible reason is that seasonal current and wind waves disperse the coastal pollutants. Application of multivariate statistical tools (hierarchical cluster analysis and principal component analysis) confirmed the role of rivers and the Tainan Canal in transporting contaminants to coastal environments, suggesting influences of industrial and human activities on APEO distribution. A further comparison with the predicted no-effect concentrations (PNECs) proposed by the European Union indicates that nonylphenol (NP) and octylphenol (OP) might pose potential ecological risks to the aquatic environment in the studied area. These findings provide useful information for environmental policy implementation and ecological assessments of different types of endocrine-disrupting chemicals and raise warnings about surfactant applications.
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Affiliation(s)
- Ruei-Feng Shiu
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Jheng-Jie Jiang
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan, 32023, Taiwan
| | - Hui-Yu Kao
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Meng-Der Fang
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu, 30011, Taiwan
| | - Yu-Jen Liang
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu, 30011, Taiwan
| | - Chih-Cheng Tang
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Chon-Lin Lee
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan; Department of Public Health, College of Health Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan; Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
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29
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Li F, Kuang Y, Liu N, Ge F. Extracellular polymeric substrates of Chlorella vulgaris F1068 weaken stress of cetyltrimethyl ammonium chloride on ammonium uptake. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 661:678-684. [PMID: 30684836 DOI: 10.1016/j.scitotenv.2018.12.472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/29/2018] [Accepted: 12/31/2018] [Indexed: 06/09/2023]
Abstract
This study investigated the influences of cetyltrimethyl trimethyl ammonium chloride (CTAC), an emerging pollutant quaternary ammonium compound (QAC) in municipal effluents, on the transfer and uptake of NH4+ by Chlorella vulgaris F1068 cells removed EPS artificially (EPS-R) and coated EPS naturally (EPS-C) under different scenarios (e.g., the presence or absence of CTAC, different photoperiod sequences (light 12 h: dark 12 h or dark 12 h: light 12 h)). The results showed that the removal of EPS increased the transfer and uptake of NH4+ but the presence of EPS caged NH4+ and effectively weakened the stress of CTAC (<0.5 mg/L) on NH4+ uptake. The main mechanism was considered that CTAC in the concentration range from 0.1 to 0.5 mg/L induced an increased amount of polysaccharide and protein in EPS and thus protected algal normal physiological functions (including cell membrane permeability and glutamine synthetase activity) from the damage of CTAC (0.1 to 0.5 mg/L) regardless of the photoperiod sequences. Thereby, the findings of this study provided an insight into the role of algal EPS in transfer and uptake of nutrients under the coexisted toxics for the future algae-based sewage treatment application.
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Affiliation(s)
- Feng Li
- College of Environment and Resources, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for High Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, China
| | - Yangduo Kuang
- College of Environment and Resources, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for High Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, China
| | - Na Liu
- College of Environment and Resources, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for High Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, China
| | - Fei Ge
- College of Environment and Resources, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for High Efficiency Purification Technology and its Application on Complex Heavy Metal Wastewater Treatment, Xiangtan 411105, China.
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30
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Dai X, Wang C, Lam JCW, Yamashita N, Yamazaki E, Horii Y, Chen W, Li X. Accumulation of quaternary ammonium compounds as emerging contaminants in sediments collected from the Pearl River Estuary, China and Tokyo Bay, Japan. MARINE POLLUTION BULLETIN 2018; 136:276-281. [PMID: 30509808 DOI: 10.1016/j.marpolbul.2018.09.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/12/2018] [Accepted: 09/15/2018] [Indexed: 06/09/2023]
Abstract
In this work, the distribution of quaternary ammonium compounds (QACs) in two dated sediment cores, collected from the Pearl River Estuary (PRE) and Tokyo Bay (TB), were investigated to understand the historical input of QACs and their diagenetic behavior in urban estuarine environments. The vertical variation profiles of QAC concentrations showed that benzylalkyldimethyl ammonium compounds (BACs) and dialkyldimethyl ammonium compounds (DADMACs) were widely used during 1970s and 1980s both in China and Japan. The declining environmental concentrations of QACs suggested a compositional change of commodities and the effectiveness of emission control strategies. For the individual QAC homologues, BAC homologues decreased significantly over time, while DADMAC compositions remained relatively stable. The differences in concentration and composition profiles of BACs and DADMACs in the sediment cores provided useful information on the patterns of use of QACs in China and Japan, as well as their diagenetic behaviors in the sediments.
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Affiliation(s)
- Xi Dai
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China
| | - Cuicui Wang
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China
| | - James C W Lam
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
| | - Nobuyoshi Yamashita
- National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Eriko Yamazaki
- National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Yuichi Horii
- Center for Environmental Science in Saitama, 914 Kamitanadare, Kazo, Saitama 347-0115, Japan
| | - Weifang Chen
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China
| | - Xiaolin Li
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China.
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