scholarly journals Concurrent Heavy Metal Exposures and Idiopathic Dilated Cardiomyopathy: A Case-Control Study From the Katanga Mining Area of the Democratic Republic of Congo

2021 ◽  
Author(s):  
Didier Malamba-Lez ◽  
Désiré Tshala-Katumbay ◽  
Virginie Bito ◽  
Jean-Michel RIGO ◽  
Richie Kipenge Kyandabike ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Dilated Cardiomyopathy ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Mining Area ◽  
Idiopathic Dilated Cardiomyopathy ◽  
Republic Of Congo ◽  
Blood Concentrations ◽  
Multiple Exposures ◽  
Permissible Levels

Blood and/or urine levels of 27 heavy metals were determined by ICPMS in 41 patients with dilated cardiomyopathy (DCM) and 29 presumably healthy subjects from the Katanga Copperbelt (KC), in the Democratic Republic of Congo (DRC). After adjusting for age, gender, education level, and renal function, DCM probability was almost maximal for blood concentrations above 0.75 and 150 µg/dl for arsenic and copper, respectively. Urinary concentrations above 1 for chromium, 20 for copper, 600 for zinc, 30 for selenium, 2 for cadmium, 0.2 for antimony, 0.5 for thallium and 0.05 for uranium, all in μg/g of creatinine, were also associated with increased DCM probability. Concurrent and multiple exposures to heavy metals, well beyond permissible levels, are associated with increased probability for DCM. Study findings warrant screening for metal toxicity in case of DCM and prompt public health measures to reduce exposures in the KC, DRC.

High human exposure to cobalt and other metals in Katanga, a mining area of the Democratic Republic of Congo

2009 ◽  
Vol 109 (6) ◽  
pp. 745-752 ◽  
Author(s):  
Célestin Lubaba Nkulu Banza ◽  
Tim S. Nawrot ◽  
Vincent Haufroid ◽  
Sophie Decrée ◽  
Thierry De Putter ◽  
...  
Keyword(s):  
Human Exposure ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Mining Area ◽  
Republic Of Congo

scholarly journals Heavy metals in urinary stones in the Democratic Republic of Congo

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Pablo Kuntima Diasiama Diangienda ◽  
Dieudonné Molamba Moningo ◽  
Alain Ngoma Mayindu ◽  
Jean-Philippe Haymann ◽  
Michel Daudon
Keyword(s):  
Heavy Metals ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Sampling Site ◽  
Urinary Stones ◽  
Infrared Spectrophotometry ◽  
Republic Of Congo ◽  
X Ray ◽  
Urinary Tract Stones ◽  
Main Components

Abstract Background The Democratic Republic of Congo has been a country of intensive mining activities for centuries, but the data on the presence of heavy metals in stones are lacking. This study aimed to identify different heavy metals in urinary tract stones and to investigate their association with the main components of urinary stones. Methods Thirty-six stones from urolithiasis patients (n = 36) followed in 10 hospitals in the Democratic Republic of Congo between January 2016 and September 2019 were analyzed by Fourier transform infrared spectrophotometry. Further analysis using X-ray fluorescence was conducted at the Laboratory of Solids Physics. Results Eight heavy metals were detected in all the stones analyzed. The average (SD) number of heavy metals detected by stone was 5 (1.2). Iron and strontium were detected in all the stones analyzed. Other heavy metals detected included zinc, copper, bromine, rubidium, lead and nickel. Rubidium had the highest concentration in the stones regardless of the sampling site. There was no statistically significant association between the content of heavy metals at the center level and at the crown level of the stones. Rubidium had more affinity with phosphates and purines (p ˂ 0.001). Iron and strontium exhibited a high affinity with weddellite than with whewellite. Conclusion Iron and Strontium were present in all stones analyzed. The presence of heavy metals in stones analyzed might suggest environmental pollution rather than crystalline induction factors.

Concentrations and forms of heavy metals around two ore processing sites in Katanga, Democratic Republic of Congo

2013 ◽  
Vol 77 ◽  
pp. 22-30 ◽  
Author(s):  
F. Mees ◽  
M.N.N. Masalehdani ◽  
T. De Putter ◽  
C. D’Hollander ◽  
E. Van Biezen ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Republic Of Congo ◽  
Ore Processing

The Role of Gender in Agent Banking: Evidence from the Democratic Republic of Congo

2020 ◽  
Author(s):  
Richard Chamboko ◽  
Robert Cull ◽  
Xavier Gine ◽  
Soren Heitmann ◽  
Fabian Reitzug ◽  
...  
Keyword(s):  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Republic Of Congo

Creative Reconstruction: A Systematic Approach to Reinventing Large Cities in Democratic Republic of Congo

2015 ◽  
Vol 8 (1) ◽  
pp. 1485-1497
Author(s):  
Mia Nsokimieno Misilu Eric
Keyword(s):  
Cultural Values ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Mineral Resources ◽  
Capital City ◽  
African Countries ◽  
Republic Of Congo ◽  
Large Cities ◽  
Current State ◽  
Legacy Cities

The current state of large cities in Democratic Republic of Congo highlights the necessity of reinventing cities. More than fifty years after the independence, these major cities, like Kinshasa the capital city, are in a state of are in a state of disrepair. They are damaged, dysfunctional, and more vulnerable. Today, these legacy cities do not meet the international requirements of livable cities. Democratic Republic of Congo faces the challenge of rebuilding its cities for sustainability. The movement for independence of African countries enabled the shift from colonial cities to legacy cities. It is important to understand the cultural and ideological foundations of colonial city. Commonly, colonial cities served as purpose-built settlements for the extraction and transport of mineral resources toward Europe. What's required is a creative reconstruction to achieve a desired successful urban change. Creative reconstruction tends to ensure urban transformation in relation with urbanization, by making continuous and healthy communities. Creative reconstruction seems appropriate way of building back cities in harmony with cultural values. The article provides a framework for urban regeneration. The study is based on principle of thinking globally and acting locally in building back better cities.

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