Chemical weapons in WW2?

Many of the woods in my county (Bedfordshire) were used as ammunition dumps of one kind or another during the war. One of them was a huge Mustard Gas dump, which was not fully cleared out - in the 1980s they found a load of (full) mustard gas canisters there!

To go off topic a little (again):
One rather unusual placing of an ammo dump - along one road were huts full of grenades. The back of the huts were against a wire fence. On the other side of the fence was a POW camp full of German prisoners!
They were likely to know that the huts were ammo storage - a local lad on a motorbike crashed into a hut and set of a rather large explosion.

 

Once heard a story about a couple of guys in the western desert stopped to have a brew up and unknowly lit their fire on top of a buried fuel dump! A couple of MPs managed to stop them from becoming the first englishmen into space.

 

God was definitely looking out for those two!

 

And imagine that some others are actually looking for weapons buried under forests and fields, fruitlessly...

 

Such is life.