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Lee YS, Chul Park B, Beom Lee D, Min HG, Kim MS, Kim SC, Ok Won S, Wee J, Chae E, Sim C, Kim Y, Kim JG, Keun Kim Y, Cho K. Crystallization-based upcycling of iron oxyhydroxide for efficient arsenic capture in contaminated soils. ENVIRONMENT INTERNATIONAL 2023; 175:107963. [PMID: 37192573 DOI: 10.1016/j.envint.2023.107963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/08/2023] [Accepted: 05/05/2023] [Indexed: 05/18/2023]
Abstract
Arsenic (As)-contaminated soil inevitably exists in nature and has become a global challenge for a sustainable future. Current processes for As capture using natural and structurally engineered nanomaterials are neither scientifically nor economically viable. Here, we established a feasible strategy to enhance As-capture efficiency and ecosystem health by structurally reorganizing iron oxyhydroxide, a natural As stabilizer. We propose crystallization to reorganize FeOOH-acetate nanoplatelets (r-FAN), which is universal for either scalable chemical synthesis or reproduction from natural iron oxyhydroxide phases. The r-FAN with wide interlayer spacing immobilizes As species through a synergistic mechanism of electrostatic intercalation and surface chemisorption. The r-FAN rehabilitates the ecological fitness of As-contaminated artificial and mine soils, as manifested by the integrated bioassay results of collembolan and plants. Our findings will serve as a cornerstone for crystallization-based material engineering for sustainable environmental applications and for understanding the interactions between soil, nanoparticles, and contaminants.
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Affiliation(s)
- Yun-Sik Lee
- Department of Biology Education, Pusan National University, Busan 46241, Republic of Korea
| | - Bum Chul Park
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Dae Beom Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea; Brain Korea Center for Smart Materials and Devices, Korea University, Seoul 02841, Republic of Korea
| | - Hyun-Gi Min
- Ojeong Eco-Resilience Institute, Korea University, Seoul 02841, Republic of Korea
| | - Min-Suk Kim
- Waste Resources Management Division Resource Recirculation Bureau, Ministry of Environment, Sejong-si 30103, Republic of Korea
| | - Sung-Chul Kim
- Advanced Analysis and Data Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Sung Ok Won
- Advanced Analysis and Data Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - June Wee
- Ojeong Eco-Resilience Institute, Korea University, Seoul 02841, Republic of Korea
| | - Eunji Chae
- Ojeong Eco-Resilience Institute, Korea University, Seoul 02841, Republic of Korea
| | - Cheolho Sim
- Department of Biology, Baylor University, Waco, TX 76706, USA
| | - Youngeun Kim
- Ojeong Eco-Resilience Institute, Korea University, Seoul 02841, Republic of Korea
| | - Jeong-Gyu Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Young Keun Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea; Brain Korea Center for Smart Materials and Devices, Korea University, Seoul 02841, Republic of Korea.
| | - Kijong Cho
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.
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Wang D, Su L, Ruan HD, Chen J, Lu J, Lee CH, Jiang SY. Quantitative and qualitative determination of microplastics in oyster, seawater and sediment from the coastal areas in Zhuhai, China. MARINE POLLUTION BULLETIN 2021; 164:112000. [PMID: 33515819 DOI: 10.1016/j.marpolbul.2021.112000] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
Microplastics as a new class of environmental contaminants have become the hot issue of global concern. We conducted quantitative and qualitative experiments to investigate microplastics in oyster, seawater and sediment along the Zhuhai coastline. The soft tissues of oysters were digested with potassium hydroxide (10%) and hydrogen peroxide (30%), seawaters and sediments with hydrogen peroxide (30%) to degrade organic matter, and analyzed using a digital camera, optical microscopy and micro-ATR-FTIR. The abundance of microplastics were in the range of 0.14-7.90 n/g in oysters (wet weight), 10.00-27.50 n/L in seawaters and 0.053-0.26 n/g in sediments. The fiber and fragment shape, black color, 101-500 μm of size and polyethylene composition were all classified as the major constituents of microplastics. The level of contaminants in oysters was correlated to those in their surrounding environments. Therefore, oysters may serve as a promising sentinel species for the indication of microplastic pollution in the coastal zone of Zhuhai.
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Affiliation(s)
- Duojia Wang
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong Province 519085, PR China
| | - Lingcheng Su
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong Province 519085, PR China
| | - Huada Daniel Ruan
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong Province 519085, PR China.
| | - Jiajun Chen
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong Province 519085, PR China
| | - Jianzun Lu
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong Province 519085, PR China
| | - Chiu-Hong Lee
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong Province 519085, PR China
| | - Sabrina Yanan Jiang
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong Province 519085, PR China.
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Son J, Kim JG, Hyun S, Cho K. Screening level ecological risk assessment of abandoned metal mines using chemical and ecotoxicological lines of evidence. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 249:1081-1090. [PMID: 31146314 DOI: 10.1016/j.envpol.2019.03.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/26/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
In the present study, a screening level site-specific ecological risk assessment (ERA) was conducted on 10 abandoned metal mines in Korea to determine the ecological risk and prioritize the mines requiring further investigation. A cost-saving approach was adopted by combining both the chemical (ChemLoE) and the ecotoxicological (EcotoxLoE) lines of evidence for the evaluation of integrated risk (IR), rather than applying the full spectrum of Triad, including ecological LoE. The risk values for ChemLoE were derived by calculating the toxic pressure based on the total and 0.01 M CaCl2 extractable metal(loid) concentrations. The risk values for EcotoxLoE were based on the mortality and reproduction of the collembolan species Paronychiurus kimi in the mine soils. A response surface model with a central composite design (CCD) was constructed to standardize the effects of soil physicochemical properties (i.e., organic matter content, clay content, and soil pH) on the reproduction of P. kimi. The predicted number of offspring was used as a reference for the calculation of risk value for reproduction. The ChemLoE and EcotoxLoE values ranged from 0.34 to 1.00 and 0.12 to 0.49, respectively, in the surveyed mines. The contribution of the ChemLoE value to the IR was higher than that of the EcotoxLoE value for all mines. Overall, two of the 10 mines were classified as high-risk soils with high IR values (IR > 0.76), but large deviations were also observed between the LoEs in these mines, suggesting the need for further studies to confirm the potential risks. The future investigations of these mines should focus particularly on providing additional evidence to reduce the degree of uncertainty for risk assessment.
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Affiliation(s)
- Jino Son
- Ojeong Eco-Resilience Institute, Korea University, Seoul, 02841, Republic of Korea
| | - Jeong-Gyu Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Seunghun Hyun
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Kijong Cho
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
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Lee YS, Lee SE, Son J, Kim Y, Wee J, Cho K. Toxicity effects and biomarkers of tebufenozide exposure in Yuukianura szeptyckii (Collembola: Neanuridae). ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2018; 40:2773-2784. [PMID: 29981014 DOI: 10.1007/s10653-018-0143-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 06/29/2018] [Indexed: 06/08/2023]
Abstract
Tebufenozide is an insect growth regulator used to control pest caterpillar populations. As an ecdysone agonist, tebufenozide is equally toxic to several non-target arthropod species, binding the receptor sites of the molting hormone 20-hydroxyecdysone and causing premature and lethal molting. In this study, the toxic effects of tebufenozide were assessed, and biomarkers of tebufenozide exposure were identified, in the non-target soil collembolan species Yuukianura szeptyckii. Adult mortality and reproduction in Y. szeptyckii exposed to tebufenozide were evaluated after 28 days of exposure and were used to calculate LC50 and EC50, respectively. The LC50 could not be determined, because the mortality values observed were below 50%, even when exposed to the highest concentration tested (700 mg/kg), but the EC50 was 95.5 mg/kg. Effects on hatching and molting rates were evaluated using compressed soils, to prevent experimental individuals from burrowing; thus, all eggs and exuviae were detectable on the soil surface. Significant negative effects of tebufenozide exposure on the hatching rate and molting frequency were observed only at the highest concentration tested (700 mg/kg). Proteomic analyses were conducted to detect the cryptic effects of toxicity in adult collembolans exposed for 28 days to 43.8 mg/kg of tebufenozide, a concentration at which no toxicity effects were observed. The production rates of two ribosomal proteins, as well as proteins involved in apoptotic cell signaling, were higher in collembolans exposed to tebufenozide than in the control group. However, the production of proteins involved in glycolysis and energy production was downregulated. Therefore, the ecotoxicoproteomic approach is a promising tool for measuring the cryptic effects of tebufenozide exposure in Y. szeptyckii at low concentrations.
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Affiliation(s)
- Yun-Sik Lee
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sung-Eun Lee
- School of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Jino Son
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Yongeun Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - June Wee
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Kijong Cho
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
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