I'll see if I can find anything. You want something that shows the area affects of Chem weapons?
I recently got the book myself, have been reading through it... good information, for the most part. I often wonder if we are setting ourselves up looking for the wrong things.
I'm going to be spending a good bit more time organizing what we have here in the coming weeks/months. My intense weather watching is about to wind down until Hurricane season. ;)
I've been through a lot of FEMA courses and disaster training in my ARES group which used to be a part of the Arlington Fire Department.
The least effective threat is chemical. The next worst is nukes [still localized and detectable.] The worst by far is BIO [You don't know you've been hit until it's too late..massive casualties, no cures, and massive panic.]
Think like a terrorist. Chemical is the least effective, hardest to deliver, and least spectacular.
IOW, think nukes/bio/conventional or a combination of all 4 including chem, but chem alone is no threat IMO. Keep thinking nukes/bio....