definiens: means ( a ) any or as designated, list ed or defined ( whether expressly or by reference ) in any Environmental Law ; ( b ) any other pollutant, chemica l, substance, toxic, infectious, carcinogenic, reactiv e, corrosive, ignitable or flammable chemical, or c hemical compound, or hazardous substance, material or waste, whether solid, liquid or gas, that is subject to regulation, control or 13 OC\1994682.10 remediation under any Environmental Laws, including any quantity of asbestos in any form, urea, formal dehyde, polychlorinated biphenyls ( PCBs ), radon gas, petrol eum, waste oil, crude oil, or any fraction thereof, all forms of natural gas, petroleum products or by - products or d erivatives ; and ( c ) any compound, mixture, solution, product or other substance or material that contains any ha zardous substance or material referred to in clause and above