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Table 1 Hair mercury levels in Andean Amazonian Countries

From: Hair mercury levels in Amazonian populations: spatial distribution and trends

Studied population Study N Hg mean μg/g Range > 10 μg/ga Fish
Country, River Basin    (median) [SD] μg/g   
General population       
Barbieri et al. 2009 Cachuela Esperanza 150 3.76 (3.01) [2.52] 0.42-15.65 3% 10.5 meals/week
   Bolivia, Beni River       
Monrroy et al. 2008 Upper Beni River 556 5.3 (4.0) [4.3] 0.08-34. ≈ 14.0%  
   Bolivia, Beni River    Children 393 5.2 (3.9) [4.4] 0.08-34.1   
     Mothers 163 5.5 (4.4) [4.1] 0.15-20.0   
     Pregnant women 18 3.2 (3.3) [2.1] 0.2-7.8   
     Breastfeeding (BF) 57 6.2 (5.5) [4.1] 0.5-18.3   
     Non pregnant, non BF 93 5.4 (4.1) [4.1] 0.15-20.0   
Maurice-Bourgoin et al. 2000 Rurrenabaque 80     
   Bolivia, Beni River    Esse-Ejjas indigenous 37 9.8 4.3-19.5   
Webb et al. 2004 Coca 45 1.9(1.5) 0.03-10.0   7.5 meals/month
   Ecuador, Napo River Añangu 27 8.7 (7.8) 2.2-20.5   17.2 meals/month
  Pañacocha 27 5.3 (5.0) 1.5-13.6   33.9 meals/month
Children       
Counter et al. 2005 Nambija gold-mining 80 2.8b (2.0) [17.5] 1.0-135.0 <10%  
   Ecuador, Nambija River settlement      
  1. aPercentage of the population with hair mercury levels higher than 10 μg/g. bGeometric mean.
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