By this definition, a number of chemical warfare agents and a number of pesticides are included in the family of compounds known as nerve agents. (politics.co.uk)
If these chemicals are bad enough to cause cancer, or to be used in chemical warfare, could they possibly be bad for your skin as well? (supernaturalacnetreatment.com)
The same sensors that can detect disease can also be used to do chemical warfare testing. (canadianbusiness.com)