Collecting samples of the spray raining down on us

This is a link to a California Department of Pesticide Regulation document (PDF file) detailing how to collect pesticide application samples.

You can find the link in context on page
http://www.cdpr.ca.gov/docs/emon/pubs/sopfield.htm
which also has a number of other collection methods.

I carried out a simplified version of this during the first round of spraying:

1. Tape or glue together two layers of cardboard roughly a foot square

2. Fashion some way of placing this board in a location with ideally a 45 degree view of the sky in all directions (no vertical obstacles nearby). I used more duct tape looped to produce double sided stickyness and placed it on an outdoor table.

3. On the night of spraying affix a sheet of paper towel to the cardboard with push-pins.

4. Next morning fold the paper towel without touching it (use the push-pins to lift it) and place between a folded sheet of alufoil.

5. Seal inside a large ziploc bag and mark date and place of collection, and place in freezer.

I have yet to figure out where to send it for analysis, but will work on that.
My idea with this was to both document coverage of areas that are supposed to be sprayed and those that are not, which is why one of our collection sites was in the Monterey Marina.