Under various federal, state and local environmental laws, statutes, ordinances and regulations relating to the protection of the environment, a current or previous owner or operator of real property, such as us, our borrowers and our tenants, may be liable in certain circumstances for the costs of investigation, removal or remediation of contamination, or related to hazardous or toxic substances, materials or wastes, including petroleum and materials containing asbestos or, mold, present or released at, under, on, or from such property. In addition, we also may be liable for costs of remediating contamination at off-site disposal or treatment facilities where we arranged for disposal or treatment of hazardous substances at such facilities. Potential liabilities relating to the forgoing also include government fines and penalties, natural resource damages, and damages for injuries to persons and property. In addition, some environmental laws can create a lien on the contaminated site in favor of the government for damages and the costs it incurs in connection with the contamination. These laws often impose liability without regard to whether the owner or operator knew of, or was responsible for, the presence, release or disposal of such substances, may be joint and several, and may be imposed on the current or former owner or operator of a property in connection with the activities of a tenant or a prior owner or operator at the property. The presence of contamination or the failure to remediate contamination may adversely affect our or our tenants' ability to sell, develop, operate or lease real estate, or to borrow using the real estate as collateral, which, in turn, could reduce our revenues. As an owner or operator of a site, including if we take ownership through foreclosure, we also can be liable under common law to third parties for damages and injuries resulting from environmental contamination at or emanating from the site (e.g., for cleanup costs, natural resource damages, bodily injury or property damage). Some of our properties are or have been used for commercial or industrial purposes involving the use or presence of hazardous substances, materials or waste, which could have resulted in environmental impacts at or from these properties, including contamination of which we are not presently aware.
We are also subject to federal, state and local environmental, health and safety laws and regulations and zoning requirements, including those regarding the handling of regulated substances and wastes, emissions to the environment and fire codes. If we, or our tenants or borrowers, fail to comply with these various laws and requirements, we might incur costs and liabilities, including governmental fines and penalties. Moreover, we do not know whether existing laws and requirements will change or, if they do, whether future laws and requirements will require us to make significant unanticipated expenditures that could have a material adverse effect on our business. Our tenants are subject to the same environmental, health and safety and zoning laws and also may be liable for cleanup or remediation of contamination. Such liability could affect a tenant's ability to make rental payments to us.
Some of our properties may contain, or may have contained, asbestos-containing building materials. Environmental, health and safety laws require that owners or operators of or employers in buildings with ACM properly manage and maintain these materials, adequately inform or train those who may come into contact with ACM and undertake special precautions, including removal or other abatement, in the event that ACM is disturbed during building maintenance, renovation or demolition. These laws may impose fines and penalties on employers, building owners or operators for failure to comply with these requirements. In addition, third parties may seek recovery from employers, owners or operators for personal injury associated with exposure to asbestos.
When excessive moisture accumulates in buildings or on building materials, mold growth may occur, particularly if the moisture problem remains undiscovered or is not addressed over a period of time. Some molds may produce airborne toxins or irritants. Indoor air quality issues also can stem from inadequate ventilation, chemical contamination from indoor or outdoor sources and other biological contaminants such as pollen, viruses and bacteria. Indoor exposure to airborne toxins or irritants above certain levels can be alleged to cause a variety of adverse health effects and symptoms, including allergic or other reactions. As a result, the presence of significant mold or other airborne contaminants at any of our properties could require us to undertake a remediation program to contain or remove the mold or other airborne contaminants from the affected property or increase indoor ventilation. In addition, the presence of significant mold or other airborne contaminants could expose us to liability from our tenants and others if property damage or personal injury occurs.
These costs and liabilities, including for any required investigation, remediation, removal, fines, penalties, costs to comply with environmental law or personal or property injury or damages and our or our tenants' or borrowers' liability could significantly exceed the value of the property without any limits.
The scope of any indemnification our tenants or borrowers have agreed to provide us for environmental liabilities may be limited. For instance, some of our agreements with our tenants or borrowers do not require them to indemnify us for environmental liabilities arising before such tenant or borrower took possession of the premises. Further, we cannot assure stockholders that any such tenant or borrower would be able to fulfill its indemnification obligations. If we were deemed liable for any such environmental liabilities and were unable to seek recovery against our tenant or borrower, our business, financial condition and results of operations could be materially and adversely affected.
Furthermore, we may invest in real estate, or CRE debt secured by real estate or subordinate interests, with environmental impacts or issues that materially impair the value of the real estate. Even as a lender, if we participate in management or take title to collateral with environmental problems or if other circumstances arise, we could be subject to environmental liability. There are substantial risks associated with such an investment.