I have a table with a list of pollutants.  I have a table of locations, site 
names, counties, etc.  I can join the these tables together and get a list of 
of all the pollutants at a site.  But, what I am really wanting is a list of 
all the pollutants with a integer field, zero for pollutant not here, 1 for 
pollutant here.

So that instead of the list I get now:
benzaldehyde
freon
formaldehyde

I would get:

lead 0
acetone 0
benzaldehyde 1
butane 0
freon 1
formaldehyde 1

How can I return an integer for positive values like this in a query?

--ja
 

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