Photographic chemicals are, with a few relatively rare exceptions, of no greater concern than those "chemicals" you are likely to have in your laundry room, under your kitchen sink, or in a garden shed.
Originally Posted by TheDreadPirateRobins
In other words, most are completely safe, if stored and handled with reasonable care (e.g. labelled properly, and stored in a locked cupboard, if you have young children).
I've been handling them both at home and in commercial environments for more than 4 decades all together, and with only the most obvious level of prudence, it just hasn't been a problem.
Oh, and welcome to APUG - where it's lots of fun.