If there is a toxic spill or exposure, proceed immediately to an area where you are no longer exposed and call 911. Give Building address, floor and phone number, and what type of spill has occurred. Take appropriate action to contain the hazard, close doors behind you, and always follow all safety procedures when working with toxic materials.
Natural Gas is not currently an energy source in 1818 Market Street. However, the restaurant at 1818 does utilize it for cooking.