definiens: ) any Hazardous Materials ( as hereinafter defined ) on, from or affecting any Property ( as hereinafterdefined ) in any manner or by any means in violation of any Environmental Laws and to the Company ’s knowledge afterdue investigation, there is no threat of such Release . As used herein, the term shall include, without limitation, land, buildings and laboratory facilities owned or leased by the Company or as to which the Company now has anyduties, responsibilities ( for cleanup, remedy or otherwise ) or liabilities under any Environmental Laws, or as to which theCompany or any Subsidiary of the Company may have such duties, responsibilities or liabilities because of past acts oromissions of the Company or any such Subsidiary or their predecessors, or because the Company or any such Subsidiaryor their predecessors in the past was such an owner or operator of, or bore some other relationship with, such land, buildings or laboratory facilities . The term shall include, without 11limitation, any flammable explosives, petroleum products, petroleum by - products, radioactive materials, hazardouswastes, hazardous substances, toxic substances or related materials as defined by Environmental Laws