Table 34.
Exposure routes and the definition of the EREQs for individual juvenile or adult reptiles in‐crop (SPG: no mortality)
| Exposure route | Source/location | EREQ | Temporal dimension of EREQ | Remarks | |
|---|---|---|---|---|---|
| Dermal exposure | Direct | Overspray | Mass of substance deposited per individual reptile divided by body mass | Annual maximum | Annual maximum may occur after several consecutive applications. Animals may stay in the field the whole year |
| Soil | Residues on soil surface. | Total concentration in specified soil layer | Annual maximum | Possibly important –the ventral skin was more permeable than the dorsal skin | |
| Plants | Residues on plants | Mass deposited on plants | Annual maximum | Possibly important, e.g. when residing in grass | |
| Water in puddle on field | Runoff from treated field | Concentration in runoff watera | Annual maximum | Likely to be minor route of exposure | |
| Oral exposure | Food (including secondary poisoning) | Daily mass of compound taken in by individual reptile | Annual maximum | Important route, see Section 10 (coverage of reptiles by birds and mammals) | |
| Water | Concentration in runoff watera | Annual maximum | Highest concentrations are expected for drinking water from puddles in crop | ||
| Soil | Daily mass of compound taken in by individual reptile | Annual maximum | Probably accidental ingestion of soil (occasionally surpassing the 5% of the diet) | ||
| Inhalation | Air | – | – | Inhalation exposure is expected to be a minor route compared to dermal and oral exposure | |