Mercury and Lead Contamination in Three Fish Species and Sediments from Lake Rukwa and Catchment Areas in Tanzania

Mshana, Johnson Grayson

doi:10.5696/i2156-9614-5-8.7

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…High levels of exposure to nonessential elements among local populations can occur in low‐ and middle‐income countries as a result of unregulated industrial practices and limited attention to waste management (Bose‐O’Reilly et al ; Nyanza et al ). In Tanzania, environmental monitoring studies in areas of artisanal and small‐scale gold mining have reported high arsenic (As) and mercury (Hg) concentrations in water, plant, and agricultural field soil samples, as well as from fish obtained from local rivers and ponds (Taylor et al ; Bose‐O’Reilly et al ; Nyanza et al ; Mshana ). Mercury is used in the amalgamation process to bind gold, whereas As is a constituent of most of the gold ore (Taylor et al ; Nyanza et al ).…”

Section: Introductionmentioning

confidence: 99%

Validation of Dried Blood Spots for Maternal Biomonitoring of Nonessential Elements in an Artisanal and Small‐Scale Gold Mining Area of Tanzania

Nyanza

Dewey

Bernier

et al. 2019

Environ Toxicol Chem

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Biomonitoring studies of vulnerable populations in low‐ and middle‐income countries are limited because traditional sampling methods are challenging to implement in low‐resource settings. The present study examined the feasibility, precision, and accuracy of dried blood spots (DBS) for human biomonitoring of nonessential elements (cadmium [Cd], mercury [Hg], and lead [Pb]) in an area of northern Tanzania with artisanal and small‐scale gold mining activities. Pregnant women (n = 44) were recruited in Geita during antenatal clinic visits, and DBS from capillary blood were collected on filter paper. As a gold‐standard comparison, venous blood was sampled from the same participants and compared with the DBS. Venous blood, DBS, and quality control samples were analyzed for chemical elements by inductively coupled plasma mass spectrometry. Field blanks were very clean for most elements, generally only twice as high as corresponding laboratory filter blanks. No significant differences were found between duplicate DBS samples taken from the same participants, with near perfect intraclass correlation coefficients (0.99) for Cd, Hg, and Pb, indicating excellent reliability. Moreover, correlation was strong (r2 > 0.9) and significant (p < 0.0001) between DBS and the quantitative venous blood, with regression line slopes close to 1.0 (0.847, 0.976, and 0.969 for Cd, Hg, and Pb, respectively), indicating high accuracy of the DBS method compared with the gold‐standard approach. The DBS method is minimally invasive and was a feasible, precise, and accurate means of measuring exposure to Cd, Hg, and Pb in pregnant women in a low‐resource setting. Environ Toxicol Chem 2019;38:1285–1293. © 2019 SETAC

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Section: Introductionmentioning

confidence: 99%

Validation of Dried Blood Spots for Maternal Biomonitoring of Nonessential Elements in an Artisanal and Small‐Scale Gold Mining Area of Tanzania

Nyanza

Dewey

Bernier

et al. 2019

Environ Toxicol Chem

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“…Figure 2: Health care delivery in Tanzania (Mshana, 2004) Statistics indicate there are 55 district hospitals, 13 designated district hospitals owned by Faith…”

Section: Existing Health Information Systems For Hospitals In Tanzaniamentioning

confidence: 99%

Reducing fragmentation in sharing of information in e-medical recording systems: case of open Mrs and care2x

Rweikiza¹

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Integration of the Electronic Medical Records (EMR) with clinical research systems has the potential to greatly enhance the efficiency, speed, and safety of medical research. New hypotheses could be generated through mining of EMR data, observational studies may be conducted more rapidly, and clinical trial recruitment and conduct could be greatly facilitated. Such enhancements will be accomplished through secondary use of EMR data for research and the development of automated decision support systems that rely on EMR data. In this study we defined the various types of EMR and clinical research data systems in use and described the goals and rationale for integrating these two types of systems to enhance research as well as quality of care. The various approaches and benefits to integrating EMR and clinical research systems are discussed and data integration was prototyped on Open MRS and Care2X health information systems. Medical Records Exchange System (MRES) prototype was developed for exchange of information on Open MRS and Care2x hospital information systems. While major benefits are conferred by such system integration, many challenges exist as well, such as the need for stringent data quality assurance, appropriate granularity, metadata and person index management, and extremely careful handling of data access and security issues. Furthermore, the movement toward the EMR within Tanzania has been slow to date, hampering these data integration efforts. However, recent legislation to incentivize the adoption of EMRs will make the feasibility and utility of EMR data integration to support clinical research more promising in the near future.

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Hydrochemical properties and heavy metal concentrations (ecological and human risk) of lake Rukwa

Lameck,

Saeed,

Justine

et al. 2024

Environmental Challenges

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Mercury and Lead Contamination in Three Fish Species and Sediments from Lake Rukwa and Catchment Areas in Tanzania

Cited by 7 publications

References 10 publications

Validation of Dried Blood Spots for Maternal Biomonitoring of Nonessential Elements in an Artisanal and Small‐Scale Gold Mining Area of Tanzania

Validation of Dried Blood Spots for Maternal Biomonitoring of Nonessential Elements in an Artisanal and Small‐Scale Gold Mining Area of Tanzania

Reducing fragmentation in sharing of information in e-medical recording systems: case of open Mrs and care2x

Hydrochemical properties and heavy metal concentrations (ecological and human risk) of lake Rukwa

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