Agriculture Reference
In-Depth Information
and suspensions that contain no organic solvents or active ingredients that
behave as solvents, any PPE item that is a barrier to water would be expected
to provide protection. Of concern would be the integrity of the seams, inter-
faces, edges, and closures. Those formulations that contain active ingredients
that behave as solvents must be treated similarly to those that contain an or-
ganic solvent. It is for those pesticide formulations that contain an organic
solvent that the selection process becomes complex, requiring consideration of
the potential for chemical permeation and degradation.
Figure 6.12
Assorted PPE that can be used for vario us tasks invol ving
hazardous chemicals and pesticides.
b.
Control of Exposure
Pesticide formulations and handling situations vary in the degree of expo-
sure that a pesticide handler can expect. For example, some solids are in the
form of wettable powders. In one scenario, the pesticide handler might be
required to open and pour a bag of such a powder into a mixing tank contain-
ing water. Depending on the wind, the rate of pouring, and size and shape of
the tank into which the powder is poured, the worker may be exposed to a
cloud of the powder. Alternatively, that same powder might be available in a
water-soluble bag. In this case, the bag does not have to be opened and can be
added directly into the mixing tank; the potential for exposure is greatly re-
