So I could get some and just release it literally anywhere there are people, at least one of whom would inevitably call the fire department and they’d come out and waste a bunch of resources looking for non-existent propane? Huh.
Could still be an act terrorism, since mercaptan has health and environmental hazards. The concentration used for odorizing natural gas is extremely low, since humans can pick up its scent pretty easily. But anything above 500 ppm and you have problems.
Ethyl Mercaptan, used as the warning odor for natural gas/propane, is not regulated.
So I could get some and just release it literally anywhere there are people, at least one of whom would inevitably call the fire department and they’d come out and waste a bunch of resources looking for non-existent propane? Huh.
Could still be an act terrorism, since mercaptan has health and environmental hazards. The concentration used for odorizing natural gas is extremely low, since humans can pick up its scent pretty easily. But anything above 500 ppm and you have problems.