1
|
Braga-Neto JT, Tozetto SO, Oliveira FS, Conceição TA, Santos WPC, Fernandes MS, Baliza MD. Comet assay to evaluate chromosomal changes in chickens (Gallus gallus domesticus) contaminated by lead in a city in Bahia. BRAZ J BIOL 2023; 83:e274806. [PMID: 38126633 DOI: 10.1590/1519-6984.274806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023] Open
Abstract
Chicken (Gallus gallus domesticus) is one of the primary sources of animal protein for the Brazilian population. Thus, the safety of this food is highly relevant. This study was based on the evidence of severe contamination of these animals by metals such as lead in Santo Amaro, Bahia. This exploratory study aimed to evaluate associations between lead levels in blood of chicken exposed to a contaminated area with the occurrence of chromosomal alterations, evidencing genotoxic effects. Serum lead analysis was performed by GF-AAS after dilution with a matrix modifier solution (Triton X-100 0.2% v/v and HNO3 0.1% v/v), while chromosomal damage was evaluated using the comet assay. The results showed genotoxic effects (positive comet assay) only for the specimen sample with higher serum lead concentrations (33.9 µg dL-1), suggesting the occurrence of toxic effects at this level of exposure. This work evaluated a relationship between the reduction of serum lead levels in chicken and increased distance from the primary polluting source - a lead processing plant (COBRAC). It also showed that lead is bioavailable in this territory, contaminating chicken and causing genotoxic effects in these animals, further expanding the concern with the local biota and the health of the residents of Santo Amaro.
Collapse
Affiliation(s)
- J T Braga-Neto
- Universidade Federal do Recôncavo da Bahia - UFRB, Centro de Ciências da Saúde, Complexo Multidisciplinar de Estudos e Pesquisa em Saúde, Santo Antônio de Jesus, BA, Brasil
| | - S O Tozetto
- Universidade Federal do Recôncavo da Bahia - UFRB, Centro de Ciências da Saúde, Complexo Multidisciplinar de Estudos e Pesquisa em Saúde, Santo Antônio de Jesus, BA, Brasil
| | - F S Oliveira
- Universidade Federal do Recôncavo da Bahia - UFRB, Centro de Ciências da Saúde, Complexo Multidisciplinar de Estudos e Pesquisa em Saúde, Santo Antônio de Jesus, BA, Brasil
| | - T A Conceição
- Universidade Federal do Recôncavo da Bahia - UFRB, Centro de Ciências da Saúde, Complexo Multidisciplinar de Estudos e Pesquisa em Saúde, Santo Antônio de Jesus, BA, Brasil
| | - W P C Santos
- Instituto Federal de Educação, Ciência e Tecnologia da Bahia - IFBA, Salvador, BA, Brasil
| | - M S Fernandes
- Universidade Federal da Fronteira Sul - UFFS, Campus Passo Fundo, Passo Fundo, RS, Brasil
| | - M D Baliza
- Universidade Federal do Recôncavo da Bahia - UFRB, Centro de Ciências da Saúde, Complexo Multidisciplinar de Estudos e Pesquisa em Saúde, Santo Antônio de Jesus, BA, Brasil
| |
Collapse
|
2
|
Qian J, Li YH, Su F, Wu JG, Sun JR, Huang TC. Citric acid-based deep eutectic solvent (CA-DES) as a new soil detergent for the removal of cadmium from coking sites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:2118-2127. [PMID: 35930153 DOI: 10.1007/s11356-022-22287-3] [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: 04/27/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
In order to solve the problem of soil pollution caused by excess heavy metals, cadmium (Cd), a novel soil-washing agent organic chelating acid-based deep eutectic solvent (OCA-DES), was investigated for the removal of Cd from the contaminated soil of coking plant. Four kinds of OCA-DES were prepared by mixing choline chloride (Ch-Cl) with four organic chelating acids (citric acid, oxalic acid, tartaric acid, and malic acid), respectively, to compare their washing efficiency of Cd from soil. The effects of washing operation conditions on the Cd removal efficiency were investigated. Side effects of citric acid-based deep eutectic solvent (CA-DES) on soil were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR). The results showed that CA-DES had the best Cd removal efficiency and could reach as high as 93.75%, under ideal conditions. CA-DES mainly washed extractable and reducible Cd. The CA-DES washing process has less side effects on soil and hardly eroded the soil or changed the mineral structure of the soil. The main roles of CA-DES washing Cd include (1) hydrogen bonds capturing Cd; (2) the carboxyl group(-COOH) forming soluble chelate with Cd; and (3) releasing H+ ions in exchange for Cd. This study demonstrates that CA-DES, a novel soil-washing agent, has excellent removal of cadmium from soil and is environment-friendly.
Collapse
Affiliation(s)
- Jie Qian
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110004, China
| | - Ying-Hua Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110004, China.
| | - Fei Su
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110004, China
| | - Ji-Guo Wu
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110004, China
| | - Jia-Ru Sun
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110004, China
| | - Tian-Ci Huang
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110004, China
| |
Collapse
|
3
|
Cenci MP, Dal Berto FC, Castillo BW, Veit HM. Precious and critical metals from wasted LED lamps: characterization and evaluation. ENVIRONMENTAL TECHNOLOGY 2022; 43:1870-1881. [PMID: 33241733 DOI: 10.1080/09593330.2020.1856939] [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: 06/10/2020] [Accepted: 11/19/2020] [Indexed: 06/11/2023]
Abstract
LED lamps already conquered the market of general lighting and are expected to generate a substantial stream of e-waste in the coming years. The challenge of recycling LED lamps have emerged, and it is essential to address both environmental and economic aspects to achieve a circular economy. LED lamps contain precious and critical metals, which can be found in electrical components and in the LED itself, making them a prospective waste for recycling initiatives. However, data about the concentration and distribution of these metals in the LED lamp's components are still scarce and uncertain. This work aims to characterise the various components of different brands of LED lamps to provide novel data on the precious and critical metals' amounts. Gold and silver were found in all brands of lamp, and we highlight the occurrence of gold in all analysed components, in concentrations between 0.01% and 0.07%, which is relevant to the economic viability of future recycling routes (gold and silver can contribute with USD 4340.00 per ton of LED lamps). The critical metals gallium, yttrium, and cerium were found in LEDs, while cobalt, barium, gallium, antimony, and manganese were found in printed circuit boards (PCBs). Additionally, the elements lead, cadmium, and arsenic were characterised due to their association with environmental and human toxicity.
Collapse
Affiliation(s)
- Marcelo Pilotto Cenci
- LACOR, Department of Materials Engineering, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Frederico Christ Dal Berto
- LACOR, Department of Materials Engineering, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Bianca Wurlitzer Castillo
- LACOR, Department of Materials Engineering, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Hugo Marcelo Veit
- LACOR, Department of Materials Engineering, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| |
Collapse
|
4
|
Lopes BCH, Zeppelini D, Pontes DS, Amado EM. First characterization of multixenobiotic activity in Collembola: An approach on cadmium-induced response. Comp Biochem Physiol C Toxicol Pharmacol 2021; 239:108850. [PMID: 32777464 DOI: 10.1016/j.cbpc.2020.108850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 07/12/2020] [Accepted: 07/22/2020] [Indexed: 10/23/2022]
Abstract
ATP-binding cassette (ABC) efflux pumps mediate the activity of the Multixenobiotic Resistance (MXR) mechanism and have been proposed as a biomarker of environmental pollution mainly in aquatic invertebrates. MXR activity was never investigated in Collembola and represents a potential tool for soil biomonitoring. This study aimed to characterize for the first time the activity of ABC efflux pumps in the gut of collembolan species, and investigate its responsiveness to cadmium (Cd), a common stressor found in polluted soils. We performed in vitro rhodamine-B accumulation assays in the presence of model inhibitors of ABC efflux pumps: verapamil hydrochloride as P-gp (P-glycoprotein) inhibitor, and MK571, as MRPs (multidrug resistance-related proteins) inhibitor. We also performed rhodamine-B accumulation assays under Cd-exposure (209 μg/L;1 μM). Our results showed that all species presented basal (noninduced) level of MXR activity in their gut. Efflux pumps P-gp and/or MRPs activity were confirmed in Cyphoderus innominatus, Cyphoderus similis, and Folsomia candida, the standard species. The rhodamine-B accumulation assays performed with Cd, applied as soil pollutant, showed that the gut of non-standard species C. similis and Trogolaphysa sp. presented an increase of MXR activity for both P-gp and MRP transporters, indicating the potential of these species as test organisms for soil ecotoxicology studies in Neotropical region. Our findings suggest a functional role of ABC transporters in the collembolan gut and their cellular involvement in Cd defense response, corroborating that MXR phenotype in Collembola can be a promising tool for bioindication of soil contamination.
Collapse
Affiliation(s)
- Bruna Carolline Honório Lopes
- Laboratório de Sistemática de Collembola e Conservação, Universidade Estadual da Paraíba Campus V, Centro de Ciências Biológicas e Sociais Aplicadas, Depto. Biologia. 58070-450 João Pessoa, PB, Brazil; Laboratório de Ecofisiologia Animal, Universidade Estadual da Paraíba Campus V, Centro de Ciências Biológicas e Sociais Aplicadas, Depto. Biologia. 58070-450 João Pessoa, PB, Brazil; Programa de Pós-Graduação em Ciências Biológicas - Zoologia, Universidade Federal da Paraíba Campus I, Centro de Ciências Exatas e da Natureza, Depto. Biologia. 58051-900 João Pessoa, PB, Brazil
| | - Douglas Zeppelini
- Laboratório de Sistemática de Collembola e Conservação, Universidade Estadual da Paraíba Campus V, Centro de Ciências Biológicas e Sociais Aplicadas, Depto. Biologia. 58070-450 João Pessoa, PB, Brazil; Programa de Pós-Graduação em Ciências Biológicas - Zoologia, Universidade Federal da Paraíba Campus I, Centro de Ciências Exatas e da Natureza, Depto. Biologia. 58051-900 João Pessoa, PB, Brazil
| | - Daniela Santos Pontes
- Laboratório de Biologia Molecular, Universidade Estadual da Paraíba Campus V, Centro de Ciências Biológicas e Sociais Aplicadas, Depto. Biologia. 58070-450 João Pessoa, PB, Brazil
| | - Enelise Marcelle Amado
- Laboratório de Ecofisiologia Animal, Universidade Estadual da Paraíba Campus V, Centro de Ciências Biológicas e Sociais Aplicadas, Depto. Biologia. 58070-450 João Pessoa, PB, Brazil.
| |
Collapse
|
5
|
Carvalho FM, Tavares TM, Lins L. Soil Contamination by a Lead Smelter in Brazil in the View of the Local Residents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15102166. [PMID: 30279362 PMCID: PMC6210486 DOI: 10.3390/ijerph15102166] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/24/2018] [Accepted: 09/27/2018] [Indexed: 12/02/2022]
Abstract
A primary lead smelter operated in Santo Amaro City in Brazil from 1960 to 1993, leaving approximately 500,000 tons of industrial dross containing 2–3% of lead and other toxic elements that contaminated the industry grounds and the urban environment. This study aimed to present the local residents’ perception towards soil contamination by the smelter. In a cross-sectional study, 208 residents from randomly selected households were interviewed about dross hazards and proposals for its management. A city map depicts the distribution and concentration of lead, cadmium, arsenic, zinc, nickel, and antimony, measured in the soil of the 39 households with visible smelter dross. Only one site complies with the soil quality reference values; 27 (69.2%) call for preventive measures, and 11 (28.2%) require intervention. The smelter dross continues widely spread over the city. Thirty (76.9%) out of the 39 residents were able to recognize the smelter dross on household surroundings. However, this ability was not associated with the concentrations of toxic elements in the soil of their residences and surroundings. The smelter and the local Prefecture were most frequently held liable for taking soil cleanup actions. The most frequently (38.0%) cited solution for managing the dross found in the households was “to provide the residents with information about health risks related to the dross”.
Collapse
Affiliation(s)
- Fernando M Carvalho
- Health, Environment, and Work Program, School of Medicine, Federal University of Bahia. Largo do Terreiro de Jesus, s/n, Centro Histórico, Salvador, Bahia 40026-010, Brazil.
| | - Tania M Tavares
- Health, Environment, and Work Program, School of Medicine, Federal University of Bahia. Largo do Terreiro de Jesus, s/n, Centro Histórico, Salvador, Bahia 40026-010, Brazil.
| | - Liliane Lins
- Health, Environment, and Work Program, School of Medicine, Federal University of Bahia. Largo do Terreiro de Jesus, s/n, Centro Histórico, Salvador, Bahia 40026-010, Brazil.
| |
Collapse
|
6
|
Andrade RLB, Hatje V, Masqué P, Zurbrick CM, Boyle EA, Santos WPC. Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil). MARINE POLLUTION BULLETIN 2017; 125:459-471. [PMID: 28800910 DOI: 10.1016/j.marpolbul.2017.07.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/19/2017] [Accepted: 07/22/2017] [Indexed: 05/13/2023]
Abstract
The evolution of the impacts of anthropogenic activities in Todos os Santos Bay was evaluated by profiles of trace metals and Pb isotopes determined in sediment cores. Fluxes of metals increased up to 12, 4 and 2 times for Cu, Pb, and Zn, respectively, compared to those recorded in the beginning of the 20th century. Stable Pb isotopes identified a decommissioned lead smelter and burning of fossil fuels as the main sources of Pb. Most metals showed minor to moderate enrichment factors (EF<4), but Cu and Pb were highly enriched (EF=28 and 6, respectively) at the Aratu harbor. Temporal changes in sediments were associated to different activities, namely Pb smelting, burning of fossil fuels, maritime traffic, petroleum related activities, inputs of domestic effluents, and changes in land uses. The effects of the implementation of environmental policies to improve the waters of the bay could not be identified in the evaluated cores.
Collapse
Affiliation(s)
- R L B Andrade
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, Salvador, BA 40170-290, Brazil.
| | - V Hatje
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, Salvador, BA 40170-290, Brazil
| | - P Masqué
- Centre for Marine Ecosystems Research, School of Science, Edith Cowan University, Joondalup, WA 6027, Australia; Institut de Ciència i Tecnologia Ambientals, Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Oceans Institute & School of Physics, The University of Western Australia, Crawley, WA 6009, Australia
| | - C M Zurbrick
- Earth, Atmospheric, and Planetary Sciences (EAPS), Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - E A Boyle
- Earth, Atmospheric, and Planetary Sciences (EAPS), Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - W P C Santos
- Departamento de Química (DAQ-SSA), Instituto Federal da Bahia, Salvador, BA 40301-015, Brazil
| |
Collapse
|
7
|
A study of bio-hybrid silsesquioxane/yeast: Biosorption and neuronal toxicity of lead. J Biotechnol 2017; 264:43-50. [DOI: 10.1016/j.jbiotec.2017.10.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 10/10/2017] [Accepted: 10/25/2017] [Indexed: 12/22/2022]
|
8
|
Dos Santos NM, do Nascimento CWA, Matschullat J, de Olinda RA. Assessment of the Spatial Distribution of Metal(Oid)s in Soils Around an Abandoned Pb-Smelter Plant. ENVIRONMENTAL MANAGEMENT 2017; 59:522-530. [PMID: 27826694 DOI: 10.1007/s00267-016-0796-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 10/31/2016] [Indexed: 06/06/2023]
Abstract
Todos os Santos (All Saints) Bay area, NE-Brazil, is known for one of the most important cases of urban lead (Pb) contamination in the world. The main objective of this work was to assess and interpret the spatial distribution of As, Cd, Hg, Pb, and Zn in "background" soils of this environmentally impacted bay area, using a combination of geostatistical and multivariate analytical methods to distinguish between natural and anthropogenic sources of those metal(oid)s in soils. We collected 114 topsoil samples (0.0-0.2 m depth) from 38 sites. The median values for trace metal concentrations in soils (mg kg-1) followed the order Pb (33.9) > Zn (8.8) > As (1.2) > Cd (0.2) > Hg (0.07), clearly reflecting a Pb-contamination issue. Principal component analysis linked Cd, Pb, and Zn to the same factor (F1), chiefly corroborating their anthropogenic origin; yet, both Pb and Zn are also influenced by natural lithogenic sources. Arsenic and Hg concentrations (F2) are likely related to the natural component alone; their parent material (igneous-metamorphic rocks) seemingly confirm this hypothesis. The heterogeneity of sources and the complexity of the spatial distribution of metals in large areas such as the Todos os Santos Bay warrant, the importance of multivariate and geostatistical analyses in the interpretation of environmental data.
Collapse
Affiliation(s)
- Nielson Machado Dos Santos
- Department of Agronomy, Federal Rural University of Pernambuco Dom Manuel de Medeiros street, Dois Irmãos, Recife, PE, 52171-900, Brazil
| | | | - Jörg Matschullat
- TU Bergakademie Freiberg, Interdisciplinary Environmental Research Centre, Brennhausgasse 14, Freiberg, 09599, Germany
| | - Ricardo Alves de Olinda
- Science and Technology Center, State University of Paraíba, Juvêncio Arruda street,-Campus Universitário-Bodocongó, Campina Grande, PB, 58109-790, Brazil
| |
Collapse
|
9
|
Ayadi A, Chorriba A, Fourati A, Gargouri-Bouzid R. Investigation of the effect of phosphogypsum amendment on two Arabidopsis thaliana ecotype growth and development. ENVIRONMENTAL TECHNOLOGY 2015; 36:1547-1555. [PMID: 25495660 DOI: 10.1080/09593330.2014.997296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The production of phosphoric acid from natural phosphate rock leads to an industrial waste called phosphogypsum (PG). About 5 tons of PG are generated per ton of phosphoric acid produced. This acidic waste (pH 2.2) is mostly disposed of by dumping into large stockpiles close to fertilizer production units, where they occupy large land areas that can cause serious environmental damages. Several attempts were made to test PG valorization via soil amendment because of its phosphate, sulphate and calcium content. The aim of the this study was to evaluate the potential use of PG as phosphate amendment in soil using two wild-type Arabidopsis thaliana ecotypes (Wassilewskija and Colombia) as model plants. Plants were grown in a greenhouse for 30 days, on substrates containing various PG concentrations (0%, 15%, 25%, 40% and 50%). The growth rate and physiological parameters (fresh weight, phosphate and chlorophyll content) were determined. The data revealed that 15% PG did not alter plant survival and leaf's dry weight, and the inorganic phosphate (Pi) uptake by plant seemed to be efficient. However, some alterations in Chlorophyll a/Chlorophyll b ratio were noticed. Higher PG concentrations (40 and 50% PG) exhibited an enhanced negative effect on plant growth, survival and Pi uptake. These inhibitory effects of the substrates may be related to the acidity of the medium in addition to its Cd content.
Collapse
Affiliation(s)
- Amal Ayadi
- a Laboratoire des Biotechnologies Végétales Appliquées à l'Amélioration des Cultures , Ecole Nationale d'Ingénieurs de Sfax , B.P 1173, Sfax 3038 , Tunisia
| | | | | | | |
Collapse
|
10
|
Voglar D, Lestan D. Chelant soil-washing technology for metal-contaminated soil. ENVIRONMENTAL TECHNOLOGY 2014; 35:1389-1400. [PMID: 24701937 DOI: 10.1080/09593330.2013.869265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We demonstrate here, in a pilot-scale experiment, the feasibility of ethylenediaminetetraacetate (EDTA)based washing technology for soils contaminated with potentially toxic metals. Acid precipitation coupled to initial alkaline toxic metal removal and an electrochemical advanced oxidation process were used for average recovery of 76 +/- 2% of EDTA per batch and total recycle of water in a closed process loop. No waste water was generated; solid wastes were efficiently bitumen-stabilized before disposal. The technology embodiment, using conventional process equipment, such as a mixer for soil extraction, screen for soil/gravel separation, filter chamber presses for soil/liquid and recycled EDTA separation and soil rinsing, continuous centrifuge separator for removal of precipitated metals and electrolytic cells for process water cleansing, removed up to 72%, 25% and 66% of Pb, Zn and Cd from garden soil contaminated with up to 6960, 3797 and 32.6 mg kg(-1) of Pb, Zn and Cd, respectively, in nine 60kg soil batches. Concentrations of Pb and Zn remaining in the remediated soil and bioaccessible from the simulated human intestinal phase soil were reduced by 97% and 96% and were brought under the level of determination for Cd. In the most cost-effective operation mode, the material and energy costs of remediation amounted to 50.5 Euros ton(-1) soil and the total cost to 299 Euros ton(-1).
Collapse
|
11
|
Lima LRPDA. Letter to the editor regarding a study of the routes of contamination by lead and cadmium in Santo Amaro, Brazil. ENVIRONMENTAL TECHNOLOGY 2013; 34:2903-2904. [PMID: 24527656 DOI: 10.1080/09593330.2013.788071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
|
12
|
Machado S, Carvalho MDF, Magna G, Portella R. A study of the routes of contamination by lead and cadmium in Santo Amaro, Brazil: a response to the comments of Andrade Lima. ENVIRONMENTAL TECHNOLOGY 2013; 34:2905-2915. [PMID: 24527657 DOI: 10.1080/09593330.2013.788044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This text is part of the discussion about the case of contamination by heavy metals in Santo Amaro, Brazil and the routes of contamination still active in the city. It is presented the point of view of the authors about the questions raised in the text of Prof. Andrade Pinho, presented in this journal issue, as well as the replies considered pertinent by the authors.
Collapse
|