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Nana AS, Falkenberg T, Rechenburg A, Ntajal J, Kamau JW, Ayo A, Borgemeister C. Seasonal variation and risks of potentially toxic elements in agricultural lowlands of central Cameroon. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:4007-4023. [PMID: 36631578 DOI: 10.1007/s10653-022-01473-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 12/27/2022] [Indexed: 06/01/2023]
Abstract
Intensive urban agriculture is expanding in Cameroon, which increases the risks of environmental pollution, particularly in the lowlands. This study assessed the seasonal characteristics of some potentially toxic elements and their ecological risks during the dry and wet seasons in urban agricultural soils in four lowlands in Yaoundé. The area and seasonal variation of some potentially toxic elements (Cu, Pb, Zn, Cd, Cr, and Ni) were evaluated using mixed-effects modeling. The pollution status of these elements in the soil was evaluated and interpreted using parameters such as the single pollution (SPI) and Nemerow composite pollution (NCPI) indices. In addition, the effect of these metals in the environment was assessed using the potential ecological risk index (PERI). The distribution of all the studied elements showed an area effect, while a seasonal effect was only noticeable for Cu. The concentration of Cu, Pb, and Zn was higher than the recommended threshold values in one of the areas sampled, while Cr exceeded these threshold values in all areas during both seasons. Cr exhibited the highest SPI among all studied elements during the dry and wet seasons in all areas. Except for the NCPI in one area, where grade V (strong) soil pollution was recorded during the wet season, the soil from all the study areas exhibited a slight pollution level (grade III) with a mean NCPI between 1 and 2. The PERI value of all areas was below the reference values during both seasons, suggesting an overall low potential contamination risk of the soil biota. The results indicate that preventive action to limit the heavy metal contamination in the lowlands of Yaoundé needs to be taken, for instance, through the promotion of more sustainable use of agrochemicals like pesticides and mineral fertilizers.
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Affiliation(s)
- Annie Stephanie Nana
- Center for Development Research (ZEF), University of Bonn, 53113, Bonn, Germany.
- Laboratory of Biotechnology and Environment, Department of Plant Biology, Faculty of Science, University of Yaoundé I, 812, Yaoundé, Cameroon.
| | - Timo Falkenberg
- Center for Development Research (ZEF), University of Bonn, 53113, Bonn, Germany
- Institute of Hygiene and Public Health, Medical Faculty, University of Bonn, 53127, Bonn, Germany
| | - Andrea Rechenburg
- Institute of Hygiene and Public Health, Medical Faculty, University of Bonn, 53127, Bonn, Germany
| | - Joshua Ntajal
- Department of Geography, University of Bonn, 53115, Bonn, Germany
| | | | - Anne Ayo
- Laboratory of Biotechnology and Environment, Department of Plant Biology, Faculty of Science, University of Yaoundé I, 812, Yaoundé, Cameroon
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Bertoldo LA, Ribeiro A, Reis CES, Frachini E, Kroetz BL, Abrão T, Santos MJ. Environmental risk assessment of potentially toxic elements in Doce River watershed after mining sludge dam breakdown in Mariana, MG, Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:539. [PMID: 37017824 DOI: 10.1007/s10661-023-11080-5] [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: 08/25/2022] [Accepted: 03/02/2023] [Indexed: 06/19/2023]
Abstract
Faced with a potential risk of a colossal amount of sludge released into the Doce River basin in the most shocking Brazilian mining disaster, we proposed to assess the environmental risk from a new perspective: Understanding the mobilization of potentially toxic elements (PTE) with the geochemical fractions. Soil and sediment samples were taken in nine sites throughout the basin and characterized. The environmental risk was assessed from the PTE sequential extraction in three fractions: soluble, reducible, and oxidizable, in addition to the pseudo-total concentration. The potential mobile fraction (PMF) showed a considerable PTE mobilization from the soil and sediment samples. Principal component statistical analysis indicated the sludge as the single source of PTE. The risk assessment depended on the fractional distribution and the PTE enrichment degree in the affected samples. The fractional distribution contributed mainly to Mn, Sb, and Pb mobility, with PMF of 96%, 81%, and 100%, respectively. The mobilization of Cd, Co, Ag, Ni, Pb, Zn, and Cu was predominantly related to the degree of enrichment. The risk assessment from the geochemical fractions pointed to the magnitude of the disaster and the dispersion of PTE with severe effects on the affected populations. Therefore, more strongly enforced regulations in the basin are needed, in addition to the urgent use of more secure containment dams. It is also essential to emphasize the transferability of the design of this study to other environmental units in mining disaster conditions.
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Affiliation(s)
- Leticia A Bertoldo
- Chemistry Department, Londrina State University, Celso Garcia Cid Highway, Londrina, 86057-970, Paraná, Brazil
| | - Angelita Ribeiro
- Chemistry Department, Londrina State University, Celso Garcia Cid Highway, Londrina, 86057-970, Paraná, Brazil
| | - Cecília E S Reis
- Chemistry Department, Londrina State University, Celso Garcia Cid Highway, Londrina, 86057-970, Paraná, Brazil
| | - Emilli Frachini
- Chemistry Department, Londrina State University, Celso Garcia Cid Highway, Londrina, 86057-970, Paraná, Brazil
| | - Barbara L Kroetz
- Chemistry Department, Londrina State University, Celso Garcia Cid Highway, Londrina, 86057-970, Paraná, Brazil
| | - Taufik Abrão
- Electrical Engineering Department, Londrina State University, Celso Garcia Cid Highway, Londrina, 86057-970, Paraná, Brazil
| | - Maria Josefa Santos
- Chemistry Department, Londrina State University, Celso Garcia Cid Highway, Londrina, 86057-970, Paraná, Brazil.
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Queiroz LG, do Prado CCA, da Silva DCVR, Gomes LET, Marassi RJ, Almeida ÉC, Pinto E, da Silva FT, de Paiva TCB. Ecological risk of imidacloprid on the Brazilian non-target freshwater organisms Chironomus sancticaroli and Poecilia reticulata. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:751. [PMID: 36074195 DOI: 10.1007/s10661-022-10418-9] [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: 05/04/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Imidacloprid (IMI) is a neonicotinoid insecticide widely used in agriculture worldwide. This pesticide has been found in freshwater ecosystems, including Brazilian freshwaters. For this reason, studies are being conducted to detect the presence of IMI in freshwater and understand its effects on the aquatic biota. In the present study, the acute toxic effect of the imidacloprid commercial formulation (ICF) Galeão® on the Brazilian non-target aquatic organisms Chironomus sancticaroli and Poecilia reticulata was evaluated. Enzymatic activities (glutathione S-transferase (GST), catalase (CAT), and ascorbate peroxidase (APX)) were also determined. Moreover, we considered 11 studies that detected IMI concentrations up to 3.65 µg.L-1 in 28 different Brazilian freshwaters to evaluate the acute ecological risk of IMI in these environments. From the ecotoxicological assays, we determined the LC50 values for C. sancticaroli (LC50-48 h 1.52 µg.L-1) and P. reticulata (LC50-96 h 122.65 mg.L-1). The high sensitivity of C. sancticaroli demonstrates that this species could be used as a bioindicator in studies investigating the contamination of freshwater by IMI. Enzymatic activity changes were observed in both organisms and offered sublethal responses to the effects of the pollution by IMI on aquatic biota. Our results suggest that the presence of IMI in Brazilian aquatic ecosystems can represent a potential ecological risk for the aquatic insect populations and, consequently, cause an imbalance in these ecosystems. The present study provides relevant and comparable toxicity information that may be useful to develop public policies to protect the Brazilian aquatic ecosystem from IMI contamination.
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Affiliation(s)
- Lucas Gonçalves Queiroz
- Department of Biotechnology, School of Engineering of Lorena, University of São Paulo, Lorena, São Paulo, Brazil.
| | - Caio César Achiles do Prado
- Department of Biotechnology, School of Engineering of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
| | | | - Luiz Eduardo Thans Gomes
- Department of Biotechnology, School of Engineering of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
| | - Rodrigo José Marassi
- Department of Biotechnology, School of Engineering of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
| | - Éryka Costa Almeida
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Ernani Pinto
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Flávio Teixeira da Silva
- Department of Biotechnology, School of Engineering of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
| | - Teresa Cristina Brazil de Paiva
- Department of Basic and Environmental Sciences, School of Engineering of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
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Zhen Y, Ge L, Chen Q, Xu J, Duan Z, Loor JJ, Wang M. Latent Benefits and Toxicity Risks Transmission Chain of High Dietary Copper along the Livestock-Environment-Plant-Human Health Axis and Microbial Homeostasis: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:6943-6962. [PMID: 35666880 DOI: 10.1021/acs.jafc.2c01367] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The extensive use of high-concentration copper (Cu) in feed additives, fertilizers, pesticides, and nanoparticles (NPs) inevitably causes significant pollution in the ecological environment. This type of chain pollution begins with animal husbandry: first, Cu accumulation in animals poisons them; second, high Cu enters the soil and water sources with the feces and urine to cause toxicity, which may further lead to crop and plant pollution; third, this process ultimately endangers human health through consumption of livestock products, aquatic foods, plants, and even drinking water. High Cu potentially alters the antibiotic resistance of soil and water sources and further aggravates human disease risks. Thus, it is necessary to formulate reasonable Cu emission regulations because the benefits of Cu for livestock and plants cannot be ignored. The present review evaluates the potential hazards and benefits of high Cu in livestock, the environment, the plant industry, and human health. We also discuss aspects related to bacterial and fungal resistance and homeostasis and perspectives on the application of Cu-NPs and microbial high-Cu removal technology to reduce the spread of toxicity risks to humans.
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Affiliation(s)
- Yongkang Zhen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, Xinjiang 832000, China
| | - Ling Ge
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Qiaoqing Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Jun Xu
- Institute for Quality and Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330000, China
| | - Zhenyu Duan
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, Xinjiang 832000, China
| | - Juan J Loor
- Mammalian Nutrition Physiology Genomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, Illinois 61801, United States
| | - Mengzhi Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, Xinjiang 832000, China
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Gong D, Bai X, Weng Y, Kang M, Huang Y, Li F, Chen Y. Phytotoxicity of binary nanoparticles and humic acid on Lactuca sativa L. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2022; 24:586-597. [PMID: 35289347 DOI: 10.1039/d2em00014h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nanoplastics and metal oxide nanoparticles are serious threats that inevitably enter the environment. Their similar particle properties likely lead to interaction and thus cause more unpredictable ecotoxicity to organisms. In this study, it was found that polystyrene nanoplastics (PS NPs) aggravate the toxic effect of iron oxide nanoparticles (Fe2O3 NPs) on Lactuca sativa L. by inducing severe oxidative stress and root deformation, and the expansion of damaged cells from the xylem to the epidermis was observed using confocal laser scanning. Exposure to PS NPs + Fe2O3 NPs correspondingly elevated iron accumulation in the roots and leaves by 1.39 and 1.17 times compared to the amount observed with Fe2O3 NPs individually. Examination of the physicochemical properties, iron ion release, and molecular interactions of the NPs indicated that PS NPs interact with Fe2O3 NPs to form heteroaggregates and facilitate leaching of iron ions, which resulted in aggravating the toxic effect. These were alleviated by the addition of humic acid (HA), which dispersed the heteroaggregates and reduced the release of iron ions. The findings in the present study provide new perspectives for the ecotoxicological risk of binary nano-pollution in the natural environment.
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Affiliation(s)
- Dongqing Gong
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Xue Bai
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
- Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, China
| | - Yuzhu Weng
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Mengen Kang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Yue Huang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Fengjie Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Yanling Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
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Marques JA, Costa SR, Maraschi AC, Vieira CED, Costa PG, de Martinez Gaspar Martins C, Santos HF, Souza MM, Sandrini JZ, Bianchini A. Biochemical response and metals bioaccumulation in planktonic communities from marine areas impacted by the Fundão mine dam rupture (southeast Brazil). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150727. [PMID: 34610403 DOI: 10.1016/j.scitotenv.2021.150727] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 09/11/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
The rupture of the Fundão dam (Mariana, MG, southeast Brazil) released a huge flood of mine tailings to Doce river basin and its adjacent coastal area, in November 2015. This catastrophic event exposed aquatic communities to metal contamination related to mine tailings, but its biological effects are still poorly understood. This study investigates how biochemical response related to metal exposure vary between locations and seasons during the years of 2018-2020, in planktonic communities (micro and mesoplankton). Marine microplankton collected in sectors in front and south of the Doce river mouth presented the highest lipid peroxidation (LPO) and induction of metallothioneins (MT). Mesoplankton collected in sectors in front and north of the Doce river mouth presented highest LPO, while MT in this size class did not respond to a clear spatial pattern. Our results showed that metals affected biomarkers in a non-linear pattern and highlighted the complex relationship between metals, biochemical parameters, and seasonality. The variation in biochemical biomarkers indicates physiological stress related to metals, once sectors contaminated by metals, especially Fe, Mn and Cd, presented stronger biochemical responses. Comparison of metal levels with bioaccumulation data collected before the impact indicates Fe, Cd, Cr and Cu more than 2-fold higher after disaster in sectors closer to the river. Literature showed that these sectors present zooplanktonic assemblages with lower biomass and biodiversity, suggesting that the opportunistic species that thrives in the area are also under biochemical stress, but possibly relies on repair or defense mechanisms. The physiological stress detected by this study is possibly related to the mine tailings, considering the metals that stood out and the proximity with the Doce river mouth. This suggests that the impacts related to the failure of Fundão dam are still affecting the marine planktonic community even three to four years after the environmental disaster.
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Affiliation(s)
- Joseane A Marques
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil.
| | - Simone R Costa
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
| | - Anieli C Maraschi
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
| | - Carlos E D Vieira
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
| | - Patricia G Costa
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
| | - Camila de Martinez Gaspar Martins
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
| | - Henrique Fragoso Santos
- Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil; Departamento de Biologia Marinha, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - Marta M Souza
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
| | - Juliana Z Sandrini
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
| | - Adalto Bianchini
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, s/n, Carreiros, Rio Grande, RS, Brazil; Fundação Espírito-santense de Tecnologia - FEST. Av. Fernando Ferrari, 845 - Goiabeiras, Vitória, ES, Brazil
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Frachini E, S Reis Ferreira C, Kroetz BL, Urbano A, Abrão T, Santos MJ. Modeling the kinetics of potentially toxic elements desorption in sediment affected by a dam breakdown disaster in Doce River - Brazil. CHEMOSPHERE 2021; 283:131157. [PMID: 34182633 DOI: 10.1016/j.chemosphere.2021.131157] [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: 02/19/2021] [Revised: 04/28/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
On November 5th, 2015, a mining dam spilled a huge plume of mining waste in the Doce River. Even though many studies have reported the environmental impact from the Doce River's tragedy, the transport of potentially toxic elements (PTE) by kinetic modeling to determine how long the basin takes to achieve the natural balance has not been described. Therefore, samples of sludge, sediment, and water were collected along the Doce River basin, to assess the elements' total leaching by kinetic modeling. The elements Fe, Al, Mn, Cu, Ag, Pb, Cd, and As were evaluated. An innovative mobilization factor (FS/D) indicated that Mn2+, Ag+, and Cd2+ can be mobilized about 80, 89, and 57 times more than its initial concentration. Besides, in low pH, the Al and Pb ions can be mobilized. The desorption kinetics showed a lower rate constant (k) and higher initial desorption constant (h) for Mn2+ than Cd2+ and Ag+, suggesting both high- and low-affinity interaction sites for Mn2+. The exponential decay demonstrated that metals can leach for months or years. Thus, the long-lasting release of metals from mining tailing waste in concentrations that endanger the ecosystem and human health makes clear the need for long-term monitoring.
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Affiliation(s)
- Emilli Frachini
- Chemistry Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | | | | | - Alexandre Urbano
- Physics Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Taufik Abrão
- Electrical Engineering Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Maria Josefa Santos
- Chemistry Department, Universidade Estadual de Londrina, Londrina, Paraná, Brazil.
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Moreira AJ, Freschi CD, Pereira EC, Freschi GPG. N-compounds speciation analysis in environmental samples using ultrasound-assisted solid-liquid extraction and non-chromatographic techniques. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:297. [PMID: 33893885 DOI: 10.1007/s10661-021-09088-w] [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: 10/19/2020] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
A fast, efficient, and non-chromatographic method was presented in this study for nitrite, nitrate, and p-nitrophenol (N-compounds) extraction and speciation analysis of environmental samples. By applying ultrasound-assisted solid-liquid extraction (USLE), analytes were efficiently extracted from water, soil, or sediment collected in areas of environmental disaster. These analytes were selectively converted to NO(g) through UV photolysis (NO3-), H2O2/UV photocatalysis (PNP), and direct conversion (NO2-). Following conversion, NO(g) was separated from the liquid phase and determined by high-resolution continuum source molecular absorption spectrometry (HR-CS MAS). The LODs obtained were 0.097 ± 0.004 mg L-1 for nitrite, 0.119 ± 0.004 mg L-1 for nitrate, and 0.090 ± 0.006 mg L-1 for p-nitrophenol. On applying this speciation method to environmental samples, concentrations were found to be up to 0.99 ± 0.03 mg L-1 (NO2-), 49.80 ± 2.5 mg L-1 (NO3-), and 0.10 ± 0.02 mg L-1 (PNP). Finally, addition/recovery study of real water, soil, and sediment samples showed 101 ± 2% recovery for NO2-, 100 ± 1% for NO3-, and 96 ± 5% for PNP.
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Affiliation(s)
- Ailton José Moreira
- LAFFEQ, Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil.
- Chemistry Dept, Universidade Federal de São Carlos, UFSCar-SP, São Carlos, SP, 13565-905, Brazil.
| | - Carolina Dakuzaku Freschi
- LAFFEQ, Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil
| | - Ernesto Chaves Pereira
- Chemistry Dept, Universidade Federal de São Carlos, UFSCar-SP, São Carlos, SP, 13565-905, Brazil
| | - Gian Paulo Giovanni Freschi
- LAFFEQ, Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil
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Aguiar VMDC, Neto JAB, Quaresma VDS, Bastos AC, Athayde JPMD. Bioavailability and ecological risks of trace metals in bottom sediments from Doce river continental shelf before and after the biggest environmental disaster in Brazil: The collapse of the Fundão dam. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 272:111086. [PMID: 32854890 DOI: 10.1016/j.jenvman.2020.111086] [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: 05/11/2020] [Revised: 07/02/2020] [Accepted: 07/12/2020] [Indexed: 05/19/2023]
Abstract
The present study deals with bioavailability of trace metals in the Doce river continental shelf, southeast of Brazil. The bottom sediments of the study area were firstly sampled a few weeks before the biggest environmental disaster of Brazil, the collapse of the Fundão dam in November of 2015. The disaster released around 40 Mm3 of iron ore tailings into Doce river basin and an estimate of 10 Mm3 reached the river delta, having the adjacent continental shelf as the final destination. One year and a half later, on April of 2017, the continental shelf was sampled again. A total of 48 stations were evaluated concerning concentrations of trace metals (Zn, Cu, Pb, Ni, Cr) and other ancillary variables before and after the accident. Trace metals were determined through fractionation in order to assess mobility and establish the ecological risk through RAC index. Before the accident, trace metals mobility was Pb > Ni > Cu > Zn > Cr, with Pb Cu, Ni and posing high ecological risk (RAC>30%) in many stations. Differences in concentrations of metal from pre to post accident were significant, and the increase of trace metals was observed. The mobility order after the accident changed to: Cu > Pb > Ni > Zn > Cr. Metal fractionation showed remarkable changes after the accident, with elements such as Cu, Ni and Zn highly associated with reducible fractions originated from the tailings composition. Despite the decrease of RAC to medium risk after the accident in most stations, the bioavilability of Cu, Pb, Ni and Zn increased as show by their higher accumulation in the bioavailable fractions.
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Affiliation(s)
- Valquíria Maria de Carvalho Aguiar
- Universidade Federal Fluminense, Instituto de Geociências, Departamento de Geologia e Geofísica Marinha, Avenida General Milton Tavares de Souza, S/n, Niterói, RJ, CEP: 24210346, Brazil.
| | - José Antônio Baptista Neto
- Universidade Federal Fluminense, Instituto de Geociências, Departamento de Geologia e Geofísica Marinha, Avenida General Milton Tavares de Souza, S/n, Niterói, RJ, CEP: 24210346, Brazil
| | - Valéria da Silva Quaresma
- Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, ES, CEP: 29075-910, Brazil
| | - Alex Cardoso Bastos
- Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, ES, CEP: 29075-910, Brazil
| | - João Pedro Moreno de Athayde
- Universidade Federal Fluminense, Instituto de Geociências, Departamento de Geologia e Geofísica Marinha, Avenida General Milton Tavares de Souza, S/n, Niterói, RJ, CEP: 24210346, Brazil
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Pinheiro BS, Moreira AJ, Gimenes LLS, Freschi CD, Freschi GPG. UV photochemical hydride generation using ZnO nanoparticles for arsenic speciation in waters, sediments, and soils samples. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:331. [PMID: 32377885 DOI: 10.1007/s10661-020-08316-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
The environmental disasters that occurred due to the leakage of mining waste in Mariana-MG (2015) and Brumadinho-MG (2019), located in Brazil, attracted the attention of the scientific community. This designated efforts to investigate the environmental consequences of toxic waste in the affected ecosystem. Therefore, a simple, easily executed and accessible method was presented for arsenic speciation [As(III), As(V), and DMA]. Using an atomic absorption spectrometer coupled to the hydride generation system, the heterogeneous photocatalysis was applied in the reduction of As(V) and DMA to As(III). After the optimization, a calibration curve was constructed, with LODs equivalent to 3.20 μg L-1 As(III), 3.86 μg L-1 As(V), and 6.68 μg L-1 DMA. When applying the method for quantification in environmental samples, a concentration of up to 103.1 ± 9.4 μg L-1 As(V) was determined for surface water samples. The soil samples, 84.1 ± 3.6 μg L-1 As(III) and 112.4 ± 9.9 μg L-1 As(V) were quantified, proving the contamination of the ecosystems impacted by the environmental disasters. We proceeded the study through an addition/recovery method with samples of water, soil, and sediments (collected from impacted environments). Recovery values were equivalent to 99.0% for As(III), 93.8% for As(V), and 99.2% for DMA. Graphical abstract Photocatalytic reduction mechanism of As(V) and DMA to As(III) by heterogeneous photocatalysis.
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Affiliation(s)
- Bianca Santos Pinheiro
- Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil
| | - Ailton José Moreira
- Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil.
- Chemistry Department, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
| | - Luana Lorca Sartori Gimenes
- Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil
| | - Carolina Dakuzaku Freschi
- Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil
| | - Gian Paulo Giovanni Freschi
- Institute of Science and Technology, Federal University of Alfenas, UNIFAL-MG, Poços de Caldas, MG, 37715-400, Brazil
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Souza LRR, Pomarolli LC, da Veiga MAMS. From classic methodologies to application of nanomaterials for soil remediation: an integrated view of methods for decontamination of toxic metal(oid)s. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:10205-10227. [PMID: 32064582 DOI: 10.1007/s11356-020-08032-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
Soil pollution with toxic elements is a recurrent issue due to environmental disasters, fossil fuel burning, urbanization, and industrialization, which have contributed to soil contamination over the years. Therefore, the remediation of toxic metals in soil is always an important topic since contaminated soil can affect the environment, agricultural safety, and human health. Many remediation methods have been developed; however, it is essential to ensure that they are safe, and also take into account the limitation of each methodology (including high energy input and generation of residues). This scenario has motivated this review, where we explore soil contamination with arsenic, lead, mercury, and chromium and summarize information about the methods employed to remediate each of these toxic elements such as phytoremediation, soil washing, electrokinetic remediation, and nanoparticles besides elucidating some mechanisms involved in the remediation. Considering all the discussed techniques, nowadays, different techniques can be combined together in order to improve the efficiency of remediation besides the new approach of the techniques and the use of one technique for remediating more than one contaminant.
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Hydrotransport-Oriented Zn, Cu, and Pb Behavior Assessment and Source Identification in the River Network of a Historically Mined Area in the Hokuroku Basin, Northeast Japan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16203907. [PMID: 31618851 PMCID: PMC6843294 DOI: 10.3390/ijerph16203907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/28/2019] [Accepted: 10/09/2019] [Indexed: 11/21/2022]
Abstract
Aquatic ecosystems continuously receive potentially hazardous heavy metals from natural and anthropogenic sources. Focusing on the origin of heavy metals, this study aims to estimate the load contribution of tributaries from individual watershed and human drainage and to dissect the source of heavy metals, as commonly required for environmental impact assessment. Using integrated water dynamics, Geographic Information System (GIS), and chemical analysis, we identified and evaluated the heavy metal sources of the Kosaka river system in Hokuroku basin, which is a historically mined area in Northeast Japan, both in the high-water and low-water seasons. The migration and diffusion behaviors of heavy metals along with hydro-transport were analyzed, and the effects of mining activities on regional water quality both in the high-water and low-water seasons were clarified. The results indicate that Zn pollution was obvious in the Kosaka River network, especially in the downstream area. The spatial heterogeneity of heavy metal outflows from tributary watersheds was obvious, and the variations had strong correlations with mine site locations. The heavy metal flows in the mainstream increased sharply in the vicinity downstream of the Kosaka refinery drainage outlets. Compared to the low-water season, the influences of human drainage were slighter in high-water season, with lower contribution rates due to the dilution effect of the greater water discharge. Downscale sampling is effective to identify pollutant sources in regional basins.
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Souza LRR, Bernardes LE, Barbetta MFS, da Veiga MAMS. Iron oxide nanoparticle phytotoxicity to the aquatic plant Lemna minor: effect on reactive oxygen species (ROS) production and chlorophyll a/chlorophyll b ratio. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:24121-24131. [PMID: 31228067 DOI: 10.1007/s11356-019-05713-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 06/07/2019] [Indexed: 06/09/2023]
Abstract
Although iron oxide occurs naturally in the environment, iron oxide nanoparticles have distinct mobility, reactivity, and toxicity, which can harm the human health and nature. This scenario has motivated the investigation of the toxic effects of iron oxide nanoparticles (akaganeite predominance + hematite) on the aquatic plant Lemna minor. First, nanoparticles were synthesized and characterized; then, different iron oxide NP concentrations were added to Lemna minor culture. After 7 days, all the Lemna minor leaves died, irrespective of the added NP concentration. The iron oxide NP impact on the plant was evaluated based on malondialdehyde (MDA) production from thiobarbituric acid reactive substances (TBARS), which was dose-dependent; i.e., lipid peroxidation in the plant increased with rising iron oxide NP concentration. The chlorophyll content decreased at high iron oxide NP concentrations, which disrupted the light absorption mechanism. Fe accumulation in Lemna minor roots also occurred, which can harm nutrient uptake. Therefore, the iron oxide NP toxic impact on plants and related ecosystems requires further studies in order to prevent environmental damage.
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Affiliation(s)
- Lilian Rodrigues Rosa Souza
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil
| | - Luís Eduardo Bernardes
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil
| | - Maike Felipe Santos Barbetta
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil
| | - Márcia Andreia Mesquita Silva da Veiga
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil.
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Xu F, Hu B, Li J, Cui R, Liu Z, Jiang Z, Yin X. Reassessment of heavy metal pollution in riverine sediments of Hainan Island, China: sources and risks. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:1766-1772. [PMID: 29101701 DOI: 10.1007/s11356-017-0562-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 10/23/2017] [Indexed: 06/07/2023]
Abstract
Riverine sediment samples from Hainan Island were collected in 2013 to assess the heavy metal pollution levels, sources, and associated environmental risks. The concentrations of Cr, Ni, Cu, Zn, As, Cd, and Pb measured in this study were 31.6-128.8 mg kg-1, 9.8-70.3 mg kg-1, 18.3-210.8 mg kg-1, 49.3-314.2 mg kg-1, 2.3-69.2 mg kg-1, 0.3-1.5 mg kg-1, and 23.2-113.4 mg kg-1, respectively. The results indicate that the sediment quality of Hainan Island has been obviously influenced by heavy metals. Based on the effect range classification, the heavy metals in Hainan riverine sediments likely have adverse biological effects on local ecosystems. The enrichment factor (EF), geoaccumulation index (Igeo), contamination factor (CF), and pollution load index (PLI) clearly reflect significant metal pollution in this region. The most significant pollution was observed in the northern and eastern parts of Hainan Island. The pollution levels of the three largest rivers on Hainan Island (i.e., the Nandu, Changhua, and Wanquan Rivers) were notably high. The results of this research will be useful in assessing and managing environmental pollution in this region. In the future, greater attention and further investigation should focus on the metal sources linked to further economic development on Hainan Island.
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Affiliation(s)
- Fangjian Xu
- School of Geosciences, China University of Petroleum, Qingdao, 266580, China.
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao Institute of Marine Geology, Ministry of Land and Resources, Qingdao, 266071, China.
- Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
| | - Bangqi Hu
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao Institute of Marine Geology, Ministry of Land and Resources, Qingdao, 266071, China.
- Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
| | - Jun Li
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao Institute of Marine Geology, Ministry of Land and Resources, Qingdao, 266071, China
- Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Ruyong Cui
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao Institute of Marine Geology, Ministry of Land and Resources, Qingdao, 266071, China
- Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Zhaoqing Liu
- School of Geosciences, China University of Petroleum, Qingdao, 266580, China
| | - Zuzhou Jiang
- School of Geosciences, China University of Petroleum, Qingdao, 266580, China
| | - Xuebo Yin
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
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