What I have read is that RKN can be blown in by dusty winds.
Also gardening tools can have RKN on them.
RKN can also be spread by dirt on our hands/clothing.
Shoes tracking dirt is another RKN transport.
Also mowing the yard - a dog shaking off dirt - anything that moves dirt from one place to another.
Last edited by AlittleSalt; August 21, 2017 at 12:13 PM.
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