The explosives used is Amatol (not exclusive) one of the ingredients is meta-dinitro benzeen, hazardous to the skin and carcinogenic. It is not my field so I stand-by to be corrected.
I think you mean 1,3-dinitrobenzene or
m-dinitrobenzene (m = meta), not 'meta-dinitro benzeen'?
The warheads of some later V-1 flying bombs and V-2 ballistic missiles were changed from the original straight Amatol (TNT/Ammonium nitrate), to Amatol 35 or Amatol 40 due to shortages of TNT.
The constituents of both later explosive formulations below.
Amatol 39 (50% DNB, 35% ammonium nitrate, 15% RDX)
Amatol 40 (50% DNAN, 35% ammonium nitrate, 15% RDX)
DNB = Dinitrobenzene (1,2-, 1,3- and 1,4-)
DNAN = 2,4-Dinitroanisole
All DNB versions are acutely toxic, via inhalation, swallowing, or via the skin. As such it's very advisable to wear protective clothing if there's a chance it's present!
https://pubchem.ncbi.nlm.nih.gov/compound/10707#section=Safety-and-Hazards
https://pubchem.ncbi.nlm.nih.gov/compound/7452#section=Safety-and-Hazards
https://pubchem.ncbi.nlm.nih.gov/compound/7492#section=Safety-and-Hazards
DNAN is a skin irritant, toxic if swallowed, and a potential carcinogen. So again, it's probably worth wearing protective clothing.
https://pubchem.ncbi.nlm.nih.gov/compound/8385#section=Safety-and-Hazards
Hope that answers your query Michel?
Neil