Skip to main content

Table 9 Hair mercury levels in the Tapajós River Basin, Occupational Groups

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

Study

Locations

and groups

N

Hg mean μg/g

(median) [SD]

Range μg/g

> 10 μg/ga

Fish

consumption

Harada et al. 2001

Fishermen and families

     
 

   Barreiras

76

16.4 [10.6]

1.8-53.8

75%

 
 

   Rainha

12

14.1 [9.3]

3.1-34.5

67%

 
 

   São Luís do Tapajós

44

20.8 [10.6]

5.1-42.2

86%

 

Lebel et al. 1997

Brasília Legal

     
 

   Fishermen

14

(27.3)

 

> 50%

68.8% of total meals

Lebel et al. 1998

Brasília Legal

     
 

   Fishermen

11

23.9 [9.3]

   

Santos, de Jesus et al. 2002

Sai Cinza

324

16.0 [18.9]

4,5-90,4

  
 

   Agriculture

127

17.3

6.8-90.4

  
 

   Gold mining

6

13.8

10.7-18.5

  
 

   Both of the above

25

13.8

6.9-25.7

  
 

   Others

11

12.3

6.6-20.6

  
 

   Children up to 6 y/o

93

16.8

4.5-66.6

  
 

   Students

38

15.1

9.0-38.7

  
 

   Without information

24

17.0

9.6-30.8

  
  1. aPercentage of the population with hair mercury levels higher than 10 μg/g.