definiens: shall mean and include, but shall not be limited to, any petroleumproduct and all hazardous or toxic substances, wastes or substances, any substances which because of theirquantitated concentration, chemical, or active, flammable, explosive, infectious or other characteristics, constitute ormay reasonably be expected to constitute or contribute to a danger or hazard to public health, safety or welfare or tothe environment, including, without limitation, any hazardous or toxic waste or substances which are included under orregulated by law, governmental rules or regulations ( whether now existing or hereafter enacted or promulgated, as theymay be amended from time to time ), including, without limitation, the Comprehensive Environmental Response, Compensation and Liability Act of 1980, 42 U.S.C. Section 9601 et seq . ( ), the Federal ResourceConservation and Recovery Act, 42 U.S.C. Section 6901 et seq ., and similar state laws and regulations adoptedthereunder