Exposure to Nanoparticles - Environmental and Human Health Impacts of Nanotechnology - page 320

100

80

60

40

20

0

Figure 8.2 Number of products in various categories in the Woodrow Wilson inventory.

Table 8.3 Potential exposure routs for consumer products.

Route Product Type

Inhalation Skin care (spray)

Sunscreen (spray)
Air fresheners
Sealants
Paints and coatings

Dermal Skin care (cream)

Sunscreen (cream)
Sealants
Paints and coatings

Ingestion Food supplements

Food additives and colourings
Food packaging
Health supplements

For many of the product types identifi ed in this database there is the possibility
for consumer exposure by a variety of routes. These have been summarised in Table
8.3. From this it may be seen that exposure by inhalation, dermal and ingestion is
possible for a wide range of consumer products already in the marketplace. The
level of exposure in each case will be dependent on the nature of the product, the
way it is used and the frequency of use.
In a review carried out on the behalf of DEFRA, Boxall et al. (2007) used a
simple modelling approach to estimate possible exposure by inhalation from