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Huang Y, Zhang N, Ge Z, Lv C, Zhu L, Ding C, Liu C, Peng P, Wu T, Wang Y. Determining soil conservation strategies: Ecological risk thresholds of arsenic and the influence of soil properties. ECO-ENVIRONMENT & HEALTH 2024; 3:238-246. [PMID: 38693960 PMCID: PMC11061221 DOI: 10.1016/j.eehl.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/18/2024] [Accepted: 02/03/2024] [Indexed: 05/03/2024]
Abstract
The establishment of ecological risk thresholds for arsenic (As) plays a pivotal role in developing soil conservation strategies. However, despite many studies regarding the toxicological profile of As, such thresholds varying by diverse soil properties have rarely been established. This study aims to address this gap by compiling and critically examining an extensive dataset of As toxicity data sourced from existing literature. Furthermore, to augment the existing information, experimental studies on As toxicity focusing on barley-root elongation were carried out across various soil types. The As concentrations varied from 12.01 to 437.25 mg/kg for the effective concentrations that inhibited 10% of barley-root growth (EC10). The present study applied a machine-learning approach to investigate the complex associations between the toxicity thresholds of As and diverse soil properties. The results revealed that Mn-/Fe-ox and clay content emerged as the most influential factors in predicting the EC10 contribution. Additionally, by using a species sensitivity distribution model and toxicity data from 21 different species, the hazardous concentration for x% of species (HCx) was calculated for four representative soil scenarios. The HC5 values for acidic, neutral, alkaline, and alkaline calcareous soils were 80, 47, 40, and 28 mg/kg, respectively. This study establishes an evidence-based methodology for deriving soil-specific guidance concerning As toxicity thresholds.
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Affiliation(s)
- Yihang Huang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Naichi Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zixuan Ge
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, China
| | - Chen Lv
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, China
| | - Linfang Zhu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Changfeng Ding
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Cun Liu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Peiqin Peng
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Tongliang Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yujun Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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2
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Ponce-Peña P, López-Ortega AR, Anguiano-Vega GA, Sosa-Rodríguez FS, Vázquez-Arenas J, Ramírez-Aldaba H, González-Lozano MA, Trejo G, Ruiz-Baca E, Labastida I, Escobedo-Bretado MA, Lara RH. Ecotoxic effect in Allium cepa due to sphalerite weathering arising in calcareous conditions. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:87. [PMID: 38367090 DOI: 10.1007/s10653-024-01857-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/03/2024] [Indexed: 02/19/2024]
Abstract
The ecotoxic effect of Zn species arising from the weathering of the marmatite-like sphalerite ((Fe, Zn)S) in Allium cepa systems was herein evaluated in calcareous soils and connected with its sulfide oxidation mechanism to determine the chemical speciation responsible of this outcome. Mineralogical analyses (X-ray diffraction patterns, Raman spectroscopy, scanning electron microscopy and atomic force microscopy), chemical study of leachates (total Fe, Zn, Cd, oxidation-reduction potential, pH, sulfates and total alkalinity) and electrochemical assessments (chronoamperometry, chronopotentiometry, cyclic voltammetry, and electrochemical impedance spectroscopy) were carried out using (Fe, Zn)S samples to elucidate interfacial mechanisms simulating calcareous soil conditions. Results indicate the formation of polysulfides (Sn2-), elemental sulfur (S0), siderite (FeCO3)-like, hematite (Fe2O3)-like with sorbed CO32- species, gunningite (ZnSO4·H2O)-like phase and smithsonite (ZnCO3)-like compounds in altered surface under calcareous conditions. However, the generation of gunningite (ZnSO4·H2O)-like phase was predominant bulk-solution system. Quantification of damage rates ranges from 75 to 90% of bulb cells under non-carbonated conditions after 15-30 days, while 50-75% of damage level is determined under neutral-alkaline carbonated conditions. Damage ratios are 70.08 and 30.26 at the highest level, respectively. These findings revealed lower ecotoxic damage due to ZnCO3-like precipitation, indicating the effect of carbonates on Zn compounds during vegetable up-taking (exposure). Other environmental suggestions of the (Fe, Zn)S weathering and ecotoxic effects under calcareous soil conditions are discussed.
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Affiliation(s)
- Patricia Ponce-Peña
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico
| | - Aldo R López-Ortega
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico
| | - Gerardo A Anguiano-Vega
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico
| | - Fabiola S Sosa-Rodríguez
- Area de Investigación y Desarrollo Económico y Ambiental, Universidad Autónoma Metropolitana (UAM-A), Azcapotzalco, Av. San Pablo 180, 02200, Mexico City, Mexico.
| | - Jorge Vázquez-Arenas
- Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional, Av. Acueducto S/N, Col. La Laguna Ticomán, 07340, Mexico City, Mexico
| | - Hugo Ramírez-Aldaba
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico
| | - Ma Azucena González-Lozano
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico
| | - Gabriel Trejo
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica (CIDETEQ), Parque Tecnológico Sanfandila, 76703, Querétaro, Mexico
| | - Estela Ruiz-Baca
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico
| | - Israel Labastida
- Departamento de Energia, Universidad Autónoma Metropolitana (UAM-A), Azcapotzalco, Av. San Pablo 180, 02200, Mexico City, Mexico
| | - Miguel A Escobedo-Bretado
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico
| | - René H Lara
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria S/N, Circuito Universitario, 34120, Durango, DGO, Mexico.
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3
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Jalil S, Nazir MM, Ali Q, Zulfiqar F, Moosa A, Altaf MA, Zaid A, Nafees M, Yong JWH, Jin X. Zinc and nano zinc mediated alleviation of heavy metals and metalloids in plants: an overview. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:870-888. [PMID: 37598713 DOI: 10.1071/fp23021] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 07/30/2023] [Indexed: 08/22/2023]
Abstract
Heavy metals and metalloids (HMs) contamination in the environment has heightened recently due to increasing global concern for food safety and human livability. Zinc (Zn2+ ) is an important nutrient required for the normal development of plants. It is an essential cofactor for the vital enzymes involved in various biological mechanisms of plants. Interestingly, Zn2+ has an additional role in the detoxification of HMs in plants due to its unique biochemical-mediating role in several soil and plant processes. During any exposure to high levels of HMs, the application of Zn2+ would confer greater plant resilience by decreasing oxidative stress, maintaining uptake of nutrients, photosynthesis productivity and optimising osmolytes concentration. Zn2+ also has an important role in ameliorating HMs toxicity by regulating metal uptake through the expression of certain metal transporter genes, targeted chelation and translocation from roots to shoots. This review examined the vital roles of Zn2+ and nano Zn in plants and described their involvement in alleviating HMs toxicity in plants. Moving forward, a broad understanding of uptake, transport, signalling and tolerance mechanisms of Zn2+ /zinc and its nanoparticles in alleviating HMs toxicity of plants will be the first step towards a wider incorporation of Zn2+ into agricultural practices.
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Affiliation(s)
- Sanaullah Jalil
- The Key Laboratory for Crop Germplasm Resource of Zhejiang Province, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | | | - Qurban Ali
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, Punjab University, Lahore 54590, Pakistan
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Anam Moosa
- Department of Plant Pathology, Faculty of Agricultural and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Abbu Zaid
- Department of Botany, Government Gandhi Memorial Science College, Jammu, India
| | - Muhammad Nafees
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp 23456, Sweden
| | - Xiaoli Jin
- The Key Laboratory for Crop Germplasm Resource of Zhejiang Province, Zhejiang University, Hangzhou, Zhejiang 310058, China
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Wang Q, Wang J, Cheng J, Zhu Y, Geng J, Wang X, Feng X, Hou H. A New Method for Ecological Risk Assessment of Combined Contaminated Soil. TOXICS 2023; 11:toxics11050411. [PMID: 37235226 DOI: 10.3390/toxics11050411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/11/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023]
Abstract
Ecological risk assessment of combined polluted soil has been conducted mostly on the basis of the risk screening value (RSV) of a single pollutant. However, due to its defects, this method is not accurate enough. Not only were the effects of soil properties neglected, but the interactions among different pollutants were also overlooked. In this study, the ecological risks of 22 soils collected from four smelting sites were assessed by toxicity tests using soil invertebrates (Eisenia fetida, Folsomia candida, Caenorhabditis elegans) as subjects. Besides a risk assessment based on RSVs, a new method was developed and applied. A toxicity effect index (EI) was introduced to normalize the toxicity effects of different toxicity endpoints, rendering assessments comparable based on different toxicity endpoints. Additionally, an assessment method of ecological risk probability (RP), based on the cumulative probability distribution of EI, was established. Significant correlation was found between EI-based RP and the RSV-based Nemerow ecological risk index (NRI) (p < 0.05). In addition, the new method can visually present the probability distribution of different toxicity endpoints, which is conducive to aiding risk managers in establishing more reasonable risk management plans to protect key species. The new method is expected to be combined with a complex dose-effect relationship prediction model constructed by machine learning algorithm, providing a new method and idea for the ecological risk assessment of combined contaminated soil.
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Affiliation(s)
- Qiaoping Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Junhuan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Jiaqi Cheng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yingying Zhu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
- College of Resources and Environment, Shanxi Agricultural University, Taigu 030801, China
| | - Jian Geng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China
| | - Xin Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China
| | - Xianjie Feng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Hong Hou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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Zhang J, Liu Z, Tian B, Li J, Luo J, Wang X, Ai S, Wang X. Assessment of soil heavy metal pollution in provinces of China based on different soil types: From normalization to soil quality criteria and ecological risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2023; 441:129891. [PMID: 36103763 DOI: 10.1016/j.jhazmat.2022.129891] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/23/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Ecological risks can vary dramatically depending on abiotic factors, such as soil properties and the background values of elements. This study developed a framework for an integrated risk assessment system to derive soil quality criteria (SQC) for heavy metals (HMs) applicable to different soil types and to assess ecological risks at a multi-regional scale. Through the construction of normalization and species sensitivity distribution models, 248 SQC values for Cd, Pb, Zn, As, Cu, Cr, Sb, and Ni in 31 Chinese provinces were derived. These SQC considered the soil types and background values of the elements and effectively reduced the uncertainty caused by spatial heterogeneity. Using the derived SQC values, the qualitative and quantitative ecological risks of HMs in the terrestrial environment of China were comprehensively assessed using a three-level ecological risk assessment (ERA) approach. Compared to traditional ERA methods, the new methodology reached a more quantitative conclusion. The mean overall probabilities of ecological risk in China were 2.42 % (Cd), 2.82 % (Pb), 12.17 % (Zn), 14.89 % (As), 10.42 % (Cu), 32.20 %(Cr), and 8.88 % (Ni). The new framework could be useful for the ERA of various soil types.
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Affiliation(s)
- Jiawen Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Zhengtao Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China.
| | - Biao Tian
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Ji Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Jingjing Luo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Xusheng Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Shunhao Ai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China; The College of Life Science, Nanchang University, Nanchang 330047, PR China
| | - Xiaonan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China.
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Li S, Yang B, Wang M, Zhang R, Chen K, He Z, Shi H, Chen S. Environmental quality standards for agricultural land in China: What should be improved on derivation methodology? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 324:116334. [PMID: 36352708 DOI: 10.1016/j.jenvman.2022.116334] [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: 03/05/2022] [Revised: 08/31/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
Soil pollution has caused increasingly widespread attention in China. The environmental risk threshold of pollutants is a yardstick to measure soil environmental quality. For decades, plenty of research on soil environmental quality standards (SEQSs) has been carried out, providing scientific basis for the investigation and supervision of soil environmental quality. This paper summaries the development of SEQSs in China, the corresponding influencing factors and methodology of SEQSs derivation. In the current version of SEQSs (GB15618-2018), the thresholds of soil pollutants are derived by the methods of environmental risk assessment, which are more methodologically scientific than geochemical method and ecological effect method used in the previous version (GB15618-1995). Abundant toxicology data on related species is required for risk assessment of soil pollution using extrapolation; however, basic toxicological data is insufficient and few valid data is available at present. Besides, the inadequate consideration on influencing factors for the derivation of soil pollutant threshold would affect the scientificity and rationality of SEQSs, such as biotic factors (species type, test endpoint etc.) and abiotic factors (aging effect, leaching effect, synergistic or antagonistic effects of elements etc.). These problems should be paid close attention in future research on soil environmental quality standards. The contents summarized in this review may provide reference for decision-making on supervision of soil environmental quality and point out important directions for future studies.
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Affiliation(s)
- Shanshan Li
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, PR China
| | - Bing Yang
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, PR China
| | - Meng Wang
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture and Rural Affairs/ Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China
| | - Rong Zhang
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, PR China
| | - Kun Chen
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, PR China
| | - Zexin He
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, PR China
| | - Huading Shi
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, PR China.
| | - Shibao Chen
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture and Rural Affairs/ Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China.
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Liu Y, Bahar MM, Samarasinghe SVAC, Qi F, Carles S, Richmond WR, Dong Z, Naidu R. Ecological risk assessment for perfluorohexanesulfonic acid (PFHxS) in soil using species sensitivity distribution (SSD) approach. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129667. [PMID: 36104899 DOI: 10.1016/j.jhazmat.2022.129667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/09/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Perfluorohexanesulfonic acid (PFHxS) is one of the persistent organic pollutants that has been recommended to be listed in Annex A of the Stockholm Convention. It has gained increasing attention in recent years due to its toxic effects. The guideline values of PFHxS are commonly associated with PFOS in various countries and regulatory agencies. In this study, multispecies bioassays were conducted to determine the ecological toxic effects of PFHxS, including plants, soil invertebrates, and soil microorganisms, which indicated the EC10/NOEC values ranged from 2.9 to 250 mg/kg. Where possible, logistic models were used to calculate the EC30 values for various endpoints. The species sensitivity distributions were employed to estimate the ecological investigation levels for PFHxS contamination in soils using toxicity results from literature and this study. The calculation using EC10/NOEC values from both literature and this study indicated a most conservative HC5 as 1.0 mg/kg (hazardous concentration for 5 % of the species being impacted). However, utilisation of EC30 values derived from this study resulted in a much higher HC5 for PFHxS in contaminated soils (13.0 mg/kg) which is at the higher end of the existing guideline values for PFOS for protecting ecological systems. The results obtained in this study can be useful in risk assessment processes to minimize any uncertainty using combined values with PFOS.
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Affiliation(s)
- Yanju Liu
- Global Centre for Environmental Remediation, College of Engineering, Science and Environment, University of Newcastle, Callaghan, NSW 2308, Australia; CRC for Contamination Assessment and Remediation of the Environment (CRC CARE), Callaghan, NSW 2308, Australia.
| | - Md Mezbaul Bahar
- Global Centre for Environmental Remediation, College of Engineering, Science and Environment, University of Newcastle, Callaghan, NSW 2308, Australia; CRC for Contamination Assessment and Remediation of the Environment (CRC CARE), Callaghan, NSW 2308, Australia.
| | - S V A Chamila Samarasinghe
- Global Centre for Environmental Remediation, College of Engineering, Science and Environment, University of Newcastle, Callaghan, NSW 2308, Australia; CRC for Contamination Assessment and Remediation of the Environment (CRC CARE), Callaghan, NSW 2308, Australia.
| | - Fangjie Qi
- Global Centre for Environmental Remediation, College of Engineering, Science and Environment, University of Newcastle, Callaghan, NSW 2308, Australia; CRC for Contamination Assessment and Remediation of the Environment (CRC CARE), Callaghan, NSW 2308, Australia.
| | | | - William R Richmond
- Department of Water and Environmental Regulation, Government of Western Australia, 8 Davidson Terrace, Joondalup WA 6027, Australia.
| | - Zhaomin Dong
- School of Space and Environment, Beihang University, Beijging 100191, China.
| | - Ravi Naidu
- Global Centre for Environmental Remediation, College of Engineering, Science and Environment, University of Newcastle, Callaghan, NSW 2308, Australia; CRC for Contamination Assessment and Remediation of the Environment (CRC CARE), Callaghan, NSW 2308, Australia.
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Lv X, Wu Y, Chen G, Yu L, Zhou Y, Yu Y, Lan S, Hu J. The strategy for estrogen receptor mediated-risk assessment in environmental water: A combination of species sensitivity distributions and in silico approaches. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 309:119763. [PMID: 35841995 DOI: 10.1016/j.envpol.2022.119763] [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: 12/07/2021] [Revised: 07/03/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Risk assessment for molecular toxicity endpoints of environmental matrices may be a pressing issue. Here, we combined chemical analysis with species sensitivity distributions (SSD) and in silico docking for multi-species estrogen receptor mediated-risk assessment in water from Dongjiang River, China. The water contains high levels of phenolic endocrine-disrupting chemicals (PEDCs) and phthalic acid esters (PAEs). The concentration of ∑4PEDCs and ∑6PAEs ranged from 2202 to 3404 ng/L and 834-4368 ng/L, with an average of 3241 and 2215 ng/L, respectively. The SSD approach showed that 4-NP, BPA, E2 of PEDCs, and DBP, DOP, and DEHP could severely threaten the aquatic ecosystems, while most other target compounds posed low-to-medium risks. Moreover, binding affinities from molecular docking among PEDCs, PAEs, and estrogen receptors (ERα, Erβ, and GPER) were applied as toxic equivalency factors. Estrogen receptor-mediated risk suggested that PEDCs were the main contributors, containing 53.37-69.79% of total risk. They potentially pose more severe estrogen-receptor toxicity to zebrafish, turtles, and frogs. ERβ was the major contributor, followed by ERα and GPER. This study is the first attempt to assess the estrogen receptor-mediated risk of river water in multiple aquatic organisms. The in silico simulation approach could complement toxic effect evaluations in molecular endpoints.
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Affiliation(s)
- Xiaomei Lv
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, Guangdong, China
| | - Yicong Wu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, Guangdong, China
| | - Guilian Chen
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, Guangdong, China
| | - Lili Yu
- Shenzhen People's Hospital, The 2nd Clinical Medical College of Jinan University, Shenzhen, 518020, China
| | - Yi Zhou
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, Guangdong, China
| | - Yingxin Yu
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, Guangdong, China
| | - Shanhong Lan
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, Guangdong, China
| | - Junjie Hu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, Guangdong, China.
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Lv H, Ji C, Ding J, Yu L, Cai H. High Levels of Zinc Affect Nitrogen and Phosphorus Transformation in Rice Rhizosphere Soil by Modifying Microbial Communities. PLANTS 2022; 11:plants11172271. [PMID: 36079652 PMCID: PMC9460630 DOI: 10.3390/plants11172271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/24/2022] [Accepted: 08/28/2022] [Indexed: 11/16/2022]
Abstract
Due to global industrialization in recent decades, large areas have been threatened by heavy metal contamination. Research about the impact of excessive Zn on N and P transformation in farmland has received little attention, and its mechanism is still not completely known. In this study, we planted rice in soils with toxic levels of Zn, and analyzed the plant growth and nutrient uptake, the N and P transformation, enzyme activities and microbial communities in rhizosphere soil to reveal the underlying mechanism. Results showed high levels of Zn severely repressed the plant growth and uptake of N and P, but improved the N availability and promoted the conversion of organic P into inorganic forms in rice rhizosphere soil. Moreover, high levels of Zn significantly elevated the activities of hydrolases including urease, protease, acid phosphatase, sucrase and cellulose, and dehydrogenase, as well as the abundances of Flavisolibacter, Sphingomonas, Gemmatirosa, and subgroup_6, which contributed to the mineralization of organic matter in soil. Additionally, toxic level of Zn repressed the nitrifying process by decreasing the abundance of nitrosifying bacteria Ellin6067 and promoted denitrification by increasing the abundance of Noviherbaspirillum, which resulted in decreased NO3− concentration in rice rhizosphere soil under VHZn condition.
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Affiliation(s)
- Haihan Lv
- Microelement Research Center, Huazhong Agricultural University, Wuhan 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Chenchen Ji
- Microelement Research Center, Huazhong Agricultural University, Wuhan 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Jingli Ding
- Microelement Research Center, Huazhong Agricultural University, Wuhan 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Lu Yu
- Microelement Research Center, Huazhong Agricultural University, Wuhan 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Hongmei Cai
- Microelement Research Center, Huazhong Agricultural University, Wuhan 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence:
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Chu L, He W, Xu F, Tong Y, Xu F. Ecological risk assessment of toxic metal(loid)s for land application of sewage sludge in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 836:155549. [PMID: 35490816 DOI: 10.1016/j.scitotenv.2022.155549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 04/17/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Sewage sludge, including those after biological or thermochemical treatments, has the potential to be used as fertilizers for recycle of resources. However, its potential ecological risk is also of great concern to policy making. This study employed comprehensive ecological risk assessment (ERA) methods to evaluate the risk caused by the toxic metal(loid)s in sewage sludge throughout China. The conventional geo-accumulation index and potential ecological risk index revealed that cadmium (Cd) and mercury (Hg) were of significant concern in treating sewage sludge before land application, but chromium (Cr) and zinc (Zn) were preferred by potential affected proportion (PAF) and overall risk probability (ORP) of species sensitivity distribution (SSD). Because SSD considered both the community and the ecotoxicity of toxic metal(loid)s, it was more advantageous and promising in assessing ecological risks caused by land application of sewage sludge. Based on the predicted no-effect concentration (PNEC) of toxic metal(loid) calculated by hazardous concentration that cause death of 50% of species (HC50) by SSD, the maximum allowable disposal amount (MADA) of sewage sludge in the whole China indicated that chromium (Cr) should be totally eliminated because of its high risks in the present background soil. After excluding Cr, the MADA of sewage sludge in China was 3.24 × 106 t and 6.47 × 107 t under land application scenarios with high and low ecological risks, respectively. Additionally, the MADA could be increased by mixing sewage sludge with deeper soil in wider areas. This study emphasized that local laws and regulations on land application of sewage sludge and the subsequent ERA system need to be addressed in the future.
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Affiliation(s)
- Liquan Chu
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing 100083, China; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Wei He
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Fuliu Xu
- MOE Key Laboratory for Earth Surface Process, College of Urban & Environmental Sciences, Peking University, Beijing 100871, China
| | - Yindong Tong
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Fuqing Xu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, 710049, China
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Li J, Xia C, Cheng R, Lan J, Chen F, Li X, Li S, Chen J, Zeng T, Hou H. Passivation of multiple heavy metals in lead-zinc tailings facilitated by straw biochar-loaded N-doped carbon aerogel nanoparticles: Mechanisms and microbial community evolution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 803:149866. [PMID: 34525768 DOI: 10.1016/j.scitotenv.2021.149866] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
Heavy metal (HM) soil pollution has become an increasingly serious problem with the development of industries. Application of biochar in HMs remediation from contaminated environment has attracted considerable research attention during the past decade. Although the mechanism of HMs passivation with biochar has been investigated, effects and mechanisms of interaction among soil-indigenous microbes and novel carbon matrix composites for HMs adsorption and passivation are still unclear. Four different biochar-loaded aerogels, namely, BNCA-1-600, BNCA-1-900, BNCA-2-600, and BNCA-2-900, were synthesized in this study. Adsorption capacity of four kinds of synthetic materials and two types of contrast biochars (BC600 and BC900) to HMs in aqueous solution, passivation capacity of HMs in soil, and effects on soil organic matter and microbial community were explored. Results showed that BNCA-2-900 exhibits excellent adsorption property and a maximum removal capacity of 205.07 mg·g-1 at 25 °C for Pb(II), 105.56 mg·g-1 for Cd(II), and 137.89 mg·g-1 for Zn(II). Leaching concentration of HMs in contaminated soil can meet the national standard of China (GB/T 5085.3-2007) within 120 days. Results of this study confirmed that the additive BNCA-2-900 and coexistence of indigenous microorganisms can effectively reduce bioavailability of HMs. Another potential mechanism may be to remove the passivation of HMs by porous structure and surface functional groups as well as improve the content of organic matter and microbial abundance. The research results may provide a novel perceptive for the development of functional materials and strategies for eco-friendly and sustainable multiple HMs remediation in contaminated soil and water by using a combination of carbon matrix composites and soil-indigenous microorganisms.
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Affiliation(s)
- Jiahao Li
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China; Zhaoqing (Wuhan University) Environmental Technology Research Institute, Zhaoqing 526200, Guangdong, China
| | - Chenggong Xia
- Central-southern Safety & Environmental Technology Institute Co., Ltd, Wuhan 430071, Hubei, China
| | - Rong Cheng
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China
| | - Jirong Lan
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China
| | - Fangyuan Chen
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China
| | - Xuli Li
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China
| | - Shiyao Li
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China
| | - Jiaao Chen
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China
| | - Tianyu Zeng
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China; Zhaoqing (Wuhan University) Environmental Technology Research Institute, Zhaoqing 526200, Guangdong, China.
| | - Haobo Hou
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China; Zhaoqing (Wuhan University) Environmental Technology Research Institute, Zhaoqing 526200, Guangdong, China.
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Abstract
Deep eutectic solvents (DESs) are a relatively new type of solvent that have attracted the attention of the scientific community due to their environmentally friendly properties and their versatility in many applications. Many possible DESs have been described and, thus, it is not easy to unequivocally characterize and generalize their properties. This is especially important in the case of the (eco)toxicity information that can be found for these mixtures. In this review, we collect data on the human and environmental toxicity of DESs, with the aim of gathering and exploring the behavioral patterns of DESs. The toxicity data found were analyzed attending to different factors: hydrogen bond donors or acceptors that form part of the eutectic mixture, pH, and the presence of organic acids in the DES molar ratio of the components, or interactions with natural compounds. In the case of ecotoxicity, results generally depend on the biomodel studied, along with other factors that have been also revised. Finally, we also carried out a revision of the biodegradation of DESs.
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