Methyl mercury intake from fish in Beneris
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Scope
MeHg intake from fish describes the exposure to methyl mercury due to fish consumption in the Beneris population.
Definition
MeHg intake from fish is represented as a continuous variable and is indexed by variable age. It applies to Finnish pregnant women (this represents prenatal exposure to MeHg from fish), to the two last age categories (18-55yr, 55yr+) and to indicators such as intelligence quotient (IQ) in children and the risk of CVD mortality in adults.
Causality
List of parents:
- Mercury and methyl mercury concentrations in fish
- Domestic fish consumption of the general population in Finland
- Domestic fish consumption of the pregnant women in Finland
- Body weight in Finland
Data
Data 1
Data 2
Data 2 represents daily intake of methyl mercury by Finnish pregnant women and adults aged 18-55yr and 55yr+ due to fish consumption. The MeHg intakes from sea and freshwater species are estimated separately. The MeHg intake from a given fish species is calculated as a product of the MeHg concentration in this species and daily consumption of this species by target population subgroup divided by the body weight in this subgroup.
Formula
Data 1
<anacode>Concentrationdata*Subgroupconsumption/365/BW</anacode>
Exposure is calculated as a product of concentration data and fish consumption data. This is further divided by bodyweight to report exposure in relation to kg of bodyweight.
Data 2
General formula:
MeHg_Concentration_species(i)*Daily_consumption_species(i)/BW
Unit
Data 1
µg/kg bw/year or mg/kg bw/d?
Data 2
µg/kg bw/d
Results
Data 1
| Fish species | High consumption | Median consumption | Low consumption | General population |
|---|---|---|---|---|
| Farmed salmon (sea+inland) | 1.263e-005 | 3.274e-006 | 2.931e-007 | 3.477e-006 |
| Wild salmon | 7.477e-007 | 1.938e-007 | 1.735e-008 | 2.059e-007 |
| Herring(sea) | 1.332e-007 | 1.554e-008 | 1.554e-008 | 7.449e-007 |
| White fish(sea) | 2.060e-006 | 4.806e-007 | 4.806e-007 | 1.170e-007 |
| Sprat(sea) | 7.094e-013 | 7.094e-013 | 7.094e-013 | 2.915e-008 |
| Perch(sea) | 2.626e-006 | 1.026e-007 | 5.129e-008 | 1.943e-006 |
| Flounder(sea) | 1.774e-012 | 1.774e-012 | 1.774e-012 | 6.914e-009 |
| Pike-perch(sea) | 3.903e-012 | 3.903e-012 | 3.903e-012 | 2.842e-007 |
| Bream(sea) | 2.129e-012 | 2.129e-012 | 2.129e-012 | 5.323e-008 |
| Pike(sea) | 7.138e-006 | 8.551e-008 | 4.275e-008 | 1.807e-006 |
| Vendace(sea) | 1.428e-007 | 7.552e-009 | 1.762e-009 | 5.701e-008 |
| Burbot(sea) | 9.228e-012 | 9.228e-012 | 9.228e-012 | 7.936e-008 |
| Wild salmon(inland) | 1.499e-006 | 3.885e-007 | 3.478e-008 | 4.127e-007 |
| White fish(inland) | 8.716e-006 | 2.034e-006 | 2.034e-006 | 4.952e-007 |
| Perch(inland) | 3.044e-006 | 1.189e-007 | 5.944e-008 | 2.270e-006 |
| Pike-perch(inland) | 1.065e-011 | 1.065e-011 | 1.065e-011 | 1.045e-006 |
| Bream(inland) | 2.129e-012 | 2.129e-012 | 2.129e-012 | 2.401e-007 |
| Pike(inland) | 2.974e-005 | 3.562e-007 | 1.781e-007 | 7.555e-006 |
| Vendace(inland) | 3.589e-006 | 1.898e-007 | 4.429e-008 | 1.433e-006 |
| Burbot(inland) | 7.808e-012 | 7.808e-012 | 7.808e-012 | 4.456e-007 |
Data 2
| Fish species | Mean MeHg intake |
| Baltic Herring | 9.6058e-004 |
| Vendace(inland) | 7.1172e-004 |
| Vendace(sea) | 2.9655e-005 |
| Whitefish(inland) | 1.1148e-003 |
| Whitefish(sea) | 7.1276e-004 |
| Pike(inland) | 4.9823e-003 |
| Pike(sea) | 1.2235e-003 |
| Perch(inland) | 6.169e-004 |
| Perch(sea) | 5.8318e-004 |
| Atlantic Salmon | 1.2333e-003 |
| Pike-perch(inland) | 0 |
| Pike-perch(sea) | 0 |
| Total fish | 0.012169 |