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da Silva Bonifácio A, de Lima Brum R, Tavella RA, Ramires PF, Lessa IM, Dos Santos M, da Silva Júnior FMR. Human health risk assessment of metals and anions in surface water from a mineral coal region in Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:567. [PMID: 34383141 DOI: 10.1007/s10661-021-09359-6] [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: 02/09/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Coal mining releases high concentration elements to the environment, which can be deposited in surface water, causing several human health problems. Candiota mine in the south of Brazil is the largest coal reserves in the country, representing approximately 40% of total national coal reserves. Therefore, the present study aimed to estimate the chronic daily dose and the non-carcinogenic risk index for metals and anions in surface waters of Candiota Region, using the USEPA protocols for Human Health Risk Assessment. A total of eight water samples were collected over a distance of up to 15 km from the emission sources of the thermal power generation companies, then the Chronic Daily Intake (CDI), Hazard Quotient (HQ), Hazard Index (HI), and sum of Hazard Index (ΣHI) were calculated. All the elements and anions evaluated showed natural concentrations for continental fresh waters according to Brazilian legislation, except Pb. Individually, none of the metals Pb, As, Cd, Ni, and Se or anions F- and NO3- showed an HI value greater than 1. However, the sum of HI (ΣHI) (five metals and two anions) by sample point showed values close to 1, for one of the eight points analyzed. Pb and Fe were the elements that most contribute to the risk values in the sample points of the study area. Although, there is no human health risk in this scenario, this investigation highlight priority elements to future investigations in coal mine areas. In the current region, Pb and F- as priority elements for future studies.
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Affiliation(s)
- Alicia da Silva Bonifácio
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
| | - Rodrigo de Lima Brum
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Ronan Adler Tavella
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Paula Florêncio Ramires
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Ingrid Medeiros Lessa
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Educação Ambiental, Instituto de Educação (IE), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
| | - Marina Dos Santos
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Flavio Manoel Rodrigues da Silva Júnior
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
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Hobbs M, Wade A, Jones P, Marek L, Tomintz M, Sharma K, McCarthy J, Mattingley B, Campbell M, Kingham S. Area-level deprivation, childhood dental ambulatory sensitive hospitalizations and community water fluoridation: evidence from New Zealand. Int J Epidemiol 2020; 49:908-916. [DOI: 10.1093/ije/dyaa043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2020] [Indexed: 12/15/2022] Open
Abstract
Abstract
Background
We examined the association between area-level deprivation and dental ambulatory sensitive hospitalizations (ASH) and considered the moderating effect of community water fluoridation (CWF). The hypothesis was that higher levels of deprivation are associated with higher dental ASH rates and that CWF will moderate this association such that children living in the most deprived areas have greater health gain from CWF.
Methods
Dental ASH conditions (dental caries and diseases of pulp/periapical tissues), age, gender and home address identifier (meshblock) were extracted from pooled cross-sectional data (Q3, 2011 to Q2, 2017) on children aged 0–4 and 5–12 years from the National Minimum Dataset, New Zealand (NZ) Ministry of Health. CWF was obtained for 2011 and 2016 from the NZ Institute of Environmental Science and Research. Dental ASH rates for children aged 0–4 and 5–12 years (/1000) were calculated for census area units (CAUs). Multilevel negative binomial models investigated associations between area-level deprivation, dental ASH rate and moderation by CWF status.
Results
Relative to CWF (2011 and 2016), no CWF (2011 and 2016) was associated with increased dental ASH rates in children aged 0–4 [incidence rate ratio (IRR) = 1.171 (95% confidence interval 1.064, 1.288)] and aged 5–12 years [IRR = 1.181 (1.084, 1.286)]. An interaction between area-level deprivation and CWF showed that the association between CWF and dental ASH rates was greatest within the most deprived quintile of children aged 0–4 years [IRR = 1.316 (1.052, 1.645)].
Conclusions
CWF was associated with a reduced dental ASH rate for children aged 0–4 and 5–12 years. Children living in the most deprived areas showed the greatest effect of CWF on dental ASH rates, indicating that the greater health gain from CWF occurred for those with the highest socio-economic disadvantage. Variation in CWF contributes to structural inequities in oral-health outcomes for children.
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Affiliation(s)
- Matthew Hobbs
- GeoHealth Laboratory, Geospatial Research Institute, University of Canterbury, Christchurch, Canterbury, New Zealand
- Health Sciences, University of Canterbury, Christchurch, New Zealand
| | | | | | - Lukas Marek
- GeoHealth Laboratory, Geospatial Research Institute, University of Canterbury, Christchurch, Canterbury, New Zealand
| | - Melanie Tomintz
- GeoHealth Laboratory, Geospatial Research Institute, University of Canterbury, Christchurch, Canterbury, New Zealand
| | | | | | - Barry Mattingley
- Institute of Environmental Science and Research Limited (ESR), Christchurch, Canterbury, New Zealand
| | - Malcolm Campbell
- GeoHealth Laboratory, Geospatial Research Institute, University of Canterbury, Christchurch, Canterbury, New Zealand
| | - Simon Kingham
- GeoHealth Laboratory, Geospatial Research Institute, University of Canterbury, Christchurch, Canterbury, New Zealand
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BEZERRA MED, RIBEIRO TM, FORTE FDS, SAMPAIO FC, NUNES JMFF. External control of water fluoridation in a small municipality of northeast of Brazil. REVISTA DE ODONTOLOGIA DA UNESP 2020. [DOI: 10.1590/1807-2577.01720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Introduction Fluoridation of public water supply is an important measure in the prevention of dental caries. Objective This study aimed to monitor the fluoride (F) concentrations of a public water supply with water fluoridation program in a small municipality in the Northeast region of Brazil. Material and method It is a quantitative study with a descriptive approach. Three points of the urban area were selected for collecting water samples twice a month for 12 months. The average of F concentrations was calculated considering these three samples of each collection point at the same occasion. F concentrations in the water samples were determined by potentiometry and the results were classified according to the criterion proposed by criterion set down by Collaborating Center of the Brazilian Ministry of Health for Oral Health Surveillance. The samples were classified according to the best risk-benefit adjustment (0.55 – 0.84 mg F /L). Result Less than 10% of the samples were within the ideal range. Conclusion It was observed that water fluoridation in this municipality was interrupted since many water samples showed f-levels below the minimal acceptable values.
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Cormick G, Belizán JM. Calcium Intake and Health. Nutrients 2019; 11:nu11071606. [PMID: 31311164 PMCID: PMC6683260 DOI: 10.3390/nu11071606] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 12/20/2022] Open
Abstract
There are striking inequities in calcium intake between rich and poor populations. Appropriate calcium intake has shown many health benefits, such as reduction of hypertensive disorders of pregnancy, lower blood pressure particularly among young people, prevention of osteoporosis and colorectal adenomas, lower cholesterol values, and lower blood pressure in the progeny of mothers taking sufficient calcium during pregnancy. Studies have refuted some calcium supplementation side effects like damage to the iron status, formation of renal stones and myocardial infarction in older people. Attention should be given to bone resorption in post-partum women after calcium supplementation withdrawal. Mechanisms linking low calcium intake and blood pressure are mediated by parathyroid hormone raise that increases intracellular calcium in vascular smooth muscle cells leading to vasoconstriction. At the population level, an increase of around 400–500 mg/day could reduce the differences in calcium intake between high- and middle-low-income countries. The fortification of food and water seems a possible strategy to reach this goal.
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Affiliation(s)
- Gabriela Cormick
- Department of Mother and Child Health Research, Institute for Clinical Effectiveness and Health Policy (IECS-CONICET), Emilio Ravignani 2024, Buenos Aires 1414, Argentina.
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town 7725, South Africa.
- Departamento de Salud, Universidad Nacional de La Matanza, San Justo 1903, Argentina.
| | - Jose M Belizán
- Department of Mother and Child Health Research, Institute for Clinical Effectiveness and Health Policy (IECS-CONICET), Emilio Ravignani 2024, Buenos Aires 1414, Argentina
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