Preliminary assessment of uranium mining legacy and environmental radioactivity levels in Sabugal region, Portugal

Carvalho, Fernando P.; Oliveira, João M.; Malta, Margarida

doi:10.1007/s40095-016-0219-z

Cited by 17 publications

(8 citation statements)

References 19 publications

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“…The mean specific activity for 226 Ra obtained in this study was about 40 times greater than the WHO reference value of 0.050 Bq/kg and one to two orders of magnitudes higher than the results of similar studies. The mean specific activity of 232 Th from this study was also one to two orders of magnitudes higher than the values reported from similar studies of Choi et al (2008), Harb (2015) and Carvalho, Oliveira, and Malta (2016) and about 56 times greater than the WHO reference values of 0.015 Bq/kg for leafy vegetables. The mean specific activity recorded in this study for 40 K was about 50% lower than the result reported by Choi et al (2008) but about 32% higher than the average results reported by Shanthi et al (2010) and Harb (2015).…”

Section: Resultscontrasting

confidence: 72%

Natural radioactivity contents in commonly consumed leafy vegetables cultivated through surface water irrigation in Lagos state, Nigeria

Adedokun

Aweda

Maleka

et al. 2019

Journal of Radiation Research and Applied Sciences

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In the industrialized area of Lagos, vegetables are mostly cultivated through surface water irrigation. Untreated surface water has the potential of being contaminated with radionuclides from industrial effluents. This study evaluated the concentration of radionuclides in the leafy vegetables cultivated through surface water irrigation in Lagos metropolis and the potential health risks associated with their consumption. The specific activities of 226 Ra, 232 Th and 40 K in some commonly consumed leafy vegetables were determined using High Purity Germanium (HPGe) detector. To assess the radiation hazards associated with the consumption of these vegetables, annual effective dose (AED) and excess lifetime cancer risk (ELCR) were also determined. The specific activities of 226 Ra, 232 Th and 40 K in the investigated samples ranged from 0.49±044 to 6.00±1.19 Bq/kg, with an average value of 2.08±0.59 Bq/ for 226 Ra, from 0.10±0.07 to 0.61±0.12 Bq/kg with an average value of 0.85 ±0.08 Bq/kg for 232 Th and from 28.69±3.09 to 126.71±5.86 Bq/kg with an average value of 72.56±5.36 Bq/kg for 40 K. The mean activities of 226 Ra and 232 Th were 40 and 56 times higher than the World Health Organization (WHO) reference values for 226 Ra and 232 Th in leafy vegetables respectively. The AED estimated from the consumption of vegetables was 0.048 mSv/y, which is about 16 % of the reference AED value for radionuclides of natural origin in the total diet while leafy vegetable represents about 8 % of the total diet of an adult in Lagos. The ELCR obtained from this study was this is lower than the world's average value. This study has found elevated concentrations of 226 Ra and 232 Th in leafy vegetables, and noticeable increase in AED associated with 226 Ra exposure in the consumption of leafy vegetables cultivated in Lagos. There are therefore potential radiological health risks to the health of the public from long-term consumption of leafy vegetables cultivated through surface water irrigation in Lagos, Nigeria.

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Section: Resultscontrasting

confidence: 72%

Natural radioactivity contents in commonly consumed leafy vegetables cultivated through surface water irrigation in Lagos state, Nigeria

Adedokun

Aweda

Maleka

et al. 2019

Journal of Radiation Research and Applied Sciences

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“…Also known as air pollution, it refers to the contamination of the air by gases, liquids and suspended solid particles, biological matter and even energy. The consequences of environmental pollution in Boké are caused by mining [22]. Bauxite dust on crops, water and their health, the populations living along the roads and mining sites of Boké periodically revolt against the authorities whom they accuse of being kind to the mining companies [23].…”

Section: Literature Review Environmental Impact Caused By Mining Exploration (Air Pollution Caused By Mining)mentioning

confidence: 99%

Uncovering Problems Caused by Mining Exploration Activities in Sangaredi

Camara¹

2021

GJES

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Exploration of bauxite mining has created numerous issues of concern in communities of operations and this has triggered engineering researchers and consultancy agencies to engage in investigations to establish causes of problems reported by communities regarding mining operations. The thrust for mineral exploration in different parts of the world has led to the destruction of many communities and their habitats. This study however focuses on uncovering problems caused by mining activities in Sangaredi and therefore employed primary data collection to enhance its objectives. The study reviewed pieces of literature from books, journal articles, magazines and other periodicals published on the subject matter. This study developed suitable data collection methods, which led to the design of questionnaires used to obtain first-hand information. A sample size of 300 was used, which facilitated the gathering of first-hand information that led to thorough analysis, discussion and conclusion. The study however used descriptive statistics and correlational methods to analyses survey data with the help of statistical package for social science (SPSS). Data analyzed disclosed issues such as air pollution, water and land pollution and increased poverty, which has adversely affected the Sangaredi community. Respondents emphasized that air pollution has caused permanent blindness and lungs problems in the lives of community people and that mining exploration exercises have change the community landscape, which has caused degradation and adversely affect agricultural activities. In consideration to the aforementioned negative effects caused by mining operations, it is but fitting for government and mining companies to dialogue and find appropriate solution towards community development deterrent. This study is however significant to mining practitioners, researchers in mining and exploration activities, Sangaredi community and the Government of the Republic of Guinea.

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“…Acid mine drainage often results from exposure of rock minerals and ore deposits to water and oxygen facilitating the mobilization of chemical elements and increasing their concentrations in waters and food chains, with detrimental effects on ecosystems’ health and human health (Carvalho et al. , ,b; Hudson‐Edwards et al. ; Nordstrom ).…”

Section: Mining Industry and Legacy Impactsmentioning

confidence: 99%

“…For example, in USA, Germany, France, and Portugal, it was concluded that tailings and acid mine drainage were sources of radioactive contaminants enhancing environmental radioactivity in water, soils, and agriculture products (IAEA, ; Merkel and Arab (); Carvalho et al. , ,b). Environmental remediation projects were implemented and many of these former uranium sites went through clean up and remediation measures which include relocation of waste piles, coverage of solid waste, and treatment of radioactive water and even replacement of water supplies in contaminated areas with noncontaminated water brought from elsewhere.…”

Section: Mining Sectors and Metals In The Societymentioning

confidence: 99%

Mining industry and sustainable development: time for change

Carvalho

2017

Food and Energy Security

Self Cite

319

113

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Mining industries provide most of the materials we rely on to build infrastructures and instruments of daily use, to obtain large amounts of energy, and to supply agriculture with fertilizers that enable most of foods produced. At the same time, mining is the human activity that has been more disturbing to environment and is linked to large social impacts and inequalities. Notwithstanding, our future is deeply depending on mining. Several mining sectors, from phosphate to uranium, are reviewed and their current impacts and challenges are discussed. The mining legacy and environmental remediation, the present mining and challenges, and the future mining and society are discussed in relationship with environmental health and sustainable development. It is concluded that current mining practices need to change and contribute to community development with more equity, and to protect better natural resources and ecosystems in order to be environmentally acceptable and compliant with sustainable development objectives. 62

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Preliminary assessment of uranium mining legacy and environmental radioactivity levels in Sabugal region, Portugal

Cited by 17 publications

References 19 publications

Natural radioactivity contents in commonly consumed leafy vegetables cultivated through surface water irrigation in Lagos state, Nigeria

Natural radioactivity contents in commonly consumed leafy vegetables cultivated through surface water irrigation in Lagos state, Nigeria

Uncovering Problems Caused by Mining Exploration Activities in Sangaredi

Mining industry and sustainable development: time for change

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