Table 6.
Hair mercury levels in the Tapajós River Basin, General Population
| Study | Location | N | Hg mean μg/g (median) [SD] |
Range μg/g | > 10 μg/ga | Fish consumption |
|---|---|---|---|---|---|---|
| Akagi et al. 1995 | Rainha | 11 | 15.8 | 2.4-31.0 | ||
| Brasília Legal | 56 | 22.6 | 3.5-151.0 | |||
| Ponta de Pedra | 10 | 10.2 | 6.2-12.6 | |||
| Jacareacanga | 48 | 16.6 | 1.5-46.0 | |||
| Barbosa et al. 1997 | Apiacás Reservation | 55 | 34.2 (42.8) | ?-128 | 93% | ≈ 6 times/week |
| Crompton et al. 2002 | Jacareacanga | 205 | 8.6 | 0.3-83.2 | ||
| Dorea et al. 2005 | Kaburuá | 89 | 2.5 [1.4] | 22 g/day | ||
| Cururu Mission | 138 | 3.7 [1.6] | 32 g/day | |||
| Terra Preta | 22 | 6.0 [2.9] | 52 g/day | |||
| Kayabi | 47 | 12.8 [7.0] | 110 g/day | |||
| Malm et al. 1995 | Jacareacanga | 10 | 25.0 | 5.7-52.0 | ||
| Brasília Legal | 13-29 | 26.0 | 4.7-151.0 | |||
| Ponta de Pedra | 4-26 | 12.0 | ||||
| Santarem | 11 | 2.7 | ||||
| Pinheiro, Guimarães et al. 2000 | Rainha | 29 | 17.2 | |||
| Barreiras | 111 | 18.9 | ||||
| São Luís do Tapajós | 30 | 25.3 | ||||
| Paranα-Mirim | 21 | 9.2 | ||||
| Pinheiro, Nakanishi et al. 2000 | Rainha | 29 | 17.6 | |||
| Barreiras | 78 | 19.1 | ||||
| Santos et al. 2000 | Brasília Legal | 220 | 11.8 [8.0] | 0.5-50.0 | 10 meals/week | |
| São Luís do Tapajós | 327 | 19.9 [12.0] | 0.1-94.5 | 13 meals/week | ||
| Santana do Ituquí | 321 | 4.3 [1.9] | 0.4-11.6 | 13 meals/week | ||
| Santos, Camara et al 2002 | Santana do Ituquí | 321 | 4.3 [2.2] | 0.4-12.0 | 12.7 meals/week | |
| Aldeia do Lago Grande | 316 | 4.0 [2.1] | 0.4-12.0 | 12.0 meals/week | ||
| Vila do Tabatinga | 499 | 5.4 [3.1] | 0.4-17.0 | 10.5 meals/week | ||
| Santos, de Jesus et al. 2002 | Sai Cinza | 324 | 16.0 [18.9] | 4,5-90,4 | ||
| Silva et al. 2004 | Jacareacanga | 140 | (8.0) | 0.3-58.5 | ||
| Rio-Rato | 98 | 0.01-81.4 | ||||
a Percentage of the population with hair mercury levels higher than 10 μg/g.