definiens: means ( a ) any hazardous materials, hazardous wastes, hazardous substances, toxicwastes and toxic substances as those or similar terms are defined under any Environmental Laws ; ( b ) any asbestosor any material that contains any hydrated mineral silicate, including chrysolite, amosite, crocidolite, tremolite, anthophylite and/or actinolite, whether friable or non - friable ; ( c ) PCBs or PCB - containing materials or fluids ; ( d ) radon;(e ) any other hazardous, radioactive, toxic or noxious substance, material, pollutant, contaminant, constituent, orsolid, liquid or gaseous waste, including medical wastes, regulated under any Environmental Law ; ( f ) any petroleum, petroleum hydrocarbons, petroleum products, crude oil and any fractions or derivatives thereof, any oil or gasexploration or production waste and any natural gas, synthetic gas and any mixtures thereof ; ( g ) any biologicalhazardous materials, including but not limited to blood, blood products, bodily fluids, tissues, or other similar materialswhich may contain potentially infectious materials ; and ( h ) any substance that, whether by its nature or its use, issubject to regulation under any Environmental Laws or with respect to which any Environmental Laws orGovernmental Authority requires environmental investigation, monitoring or remediation