Dietary uptake is the dominant exposure route for the TGP, but the dominant route for the THEP is inhalation: the median estimate of exposure by inhalation in the THEP is 2.5 times the estimated median exposure through diet.
The study, using satellite data, is the first to make a global estimate of exposure and indicates that almost 90% of the world's children - 2 billion - live in places where outdoor air pollution exceeds World Health Organisation (WHO) limits.
According to EFSA [74], a worst case estimate of exposure to microplastics after consumption of a portion of mussels (225 g) would be 7 μg of plastics.
Concentration of parent drug and/or metabolite(s) in systemic circulation is widely used and accepted as a better estimate of exposure than comparison of administered dose.
In this connection it is important to emphasize that our estimate of exposure did not include the whole time or the entire distance walked on sidewalks or pedestrian streets.
An estimate of exposure via non-food products is difficult because of the large number of possible applications of PFCs such as for jackets, trousers, shoes, carpets, upholstered furniture, and as cleaning agents.
This resulted in a normalized estimate of exposure to stimulus as a function of interface position.
Final study results will provide a better estimate of exposure.
Two urine samples were collected on 2 consecutive days to obtain a representative estimate of exposure.
So an accurate estimate of exposure requires personal air monitoring during specific activities.
This approach allows input variability and uncertainty to be taken into account, thus providing a better estimate of exposure.
