Property Types

Dental Offices

Dental Offices have many potential exposures for releasing hazardous substances and environmental liability. Liability can result from events that cause cumulative exposures or a condition or event that causes an immediate release. A leading cause of pollution liability for Dental Offices is a water leak that creates mold growth. Other exposures include poor indoor air quality, which can come from many sources, including biological contaminants, such as mold and bacteria, and disinfectant chemicals. The storage and disposal of hazardous chemicals and materials, including fillings, instrument sharps, and other hazardous materials, can create additional liability.

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Environmental Exposures May Include:

Mold
Asbestos
Sterilization Chemicals
Indoor Air Quality
Waste Management
Mercury Vapor
Ionizing Radiation
Legionella

Mold

Mold growth can result from water and wastewater releases into building materials and subsurfaces due to leaks, overflows, and blocked drains or pipes. Mold may also develop in other water systems, such as refrigeration or HVAC systems and water features. Mold exposure may pose health hazards to building occupants, including severe respiratory issues and systemic toxicity, and can absorb into building materials and create cleanup liability.

Asbestos

Older buildings may contain asbestos. Asbestos-containing material (ACM) may be present in duct insulation, piping, furnaces, boilers, tanks, and fireproofing insulation. ACM may also be present in ceilings, walls, flooring tile, and mastic. Tort claims may result from accidental disturbance or alleged exposure during repair work, renovation, construction, or interior remodeling.

Sterilization Chemicals

Disinfection chemicals such as glutaraldehyde and chlorine-based disinfectants are used to sterilize dental tools and surfaces. Long-term exposure to these chemicals can be harmful if inhaled or absorbed through the skin.

Indoor Air Quality

Indoor air quality can pose environmental risks in buildings. “Sick Building Syndrome” refers to a situation where building inhabitants suffer from health problems that occur and are aggravated while in a building. Sick Building Syndrome is often attributed to poor design, maintenance, or a faulty ventilation system. Asbestos, lead, mold, and bacteria can contribute to an unhealthy indoor environment.

Waste Management

Improper disposal of dental waste, including amalgam fillings, sharp instruments, and other hazardous materials, can contribute to environmental pollution. If not managed properly, it can lead to contamination of water supplies or landfills. In addition, dental offices generate significant amounts of plastic waste, such as gloves, disposable instruments, and packaging. Over time, this can contribute to plastic pollution.

Mercury Vapor

Amalgam fillings, which contain mercury, can release vapor during placement, removal, or polishing. High levels of mercury exposure can be harmful to both dental professionals and patients.

Ionizing Radiation

Although not a form of traditional pollution, dental offices commonly use X-rays, which can emit ionizing radiation. While modern equipment reduces exposure, improper use or safety practices can lead to excessive radiation for both patients and dental staff.

Legionella

Legionella is a bacterium that causes a form of potentially fatal pneumonia. Legionella can thrive in water-containing systems like air conditioning, heating and cooling systems, and water features. It can accumulate in warm, stagnant, pooled, or infrequently- drained water. Poorly maintained systems and inadequate corrosion control or sanitization can result in Legionella growth and airborne dispersal. Exposure to third parties can result in Legionnaires’ disease, Pontiac Fever, or severe complications of existing respiratory diseases.

Environmental Liability Insurance Can Provide Coverage For

On-site cleanup of new and pre-existing pollution conditions

Off-site cleanup of new and pre-existing pollution conditions

Third-party claims for bodily injury and property damage

Third-party claims for cleanup

Both sudden and gradual pollution conditions

Aboveground and underground storage tanks

Business interruption resulting from pollution conditions

First and third-party transportation pollution liability

Mold, bacteria, viruses, legionella, and more

Loading and unloading

Defense of third-party claims

Civil fines and penalties

Illicit abandonment

Non-owned disposal sites

Claims Scenarios & Examples

A dental office had a water leak behind the interior walls that was not detected for several months. Mold started to grow and employees began feeling sick. An investigation found the water leak, which was repaired, however the mold growth resulted in over $55,000 of cleanup costs, building renovation, and additional costs due to business interruption.
A dental practice was fined $61,000 for hazardous waste violations. The company was cited for violating 26 regulations, including, but not limited to, failing to implement an adequate hazard communication and training program, improperly labeling chemicals, and not maintaining material safety data sheets for the chemicals used on-site. In addition, the company was ordered to pay for the cleanup of chemicals that were improperly dipsosed of at a solid waste landfill due to the labeling issue.
A dental practice flushed its mercury-containing amalgam waste into chair-side drains that discharged into an on-site septic system. When the practice moved to a new location, and investigation was completed that included sampling of the septic syustem and leach field. Mercury contamination was found and the dental practice was ordered to pay for the cleanup.
Employees of a dental practice began to feel sick and patients developed respiratory issues following treatments, prompting the owner to conduct air testing. Mold was found to be in the air conditioning system of the building. The building owner had to cover the mold remediation costs of $25,000 and settle the bodily injury claims for $125,000.

Final Consideration

Your business can be faced with the cost to defend itself against allegations or legal action from pollution related events, regardless if you are at fault or not. Having the proper insurance coverage in place will help fund the expenses incurred to investigate or defend against a claim or suit and provide you with environmental claims handling expertise.

This environmental risk overview offers a general understanding of potential risks and may not reflect all risks associated with your business. Environmental Risk Professionals has compiled this overview for informational purposes only. This overview does not constitute legal opinion or advice, nor does it establish a consultant-client relationship. This overview is not intended to guide project parties in interpreting specific contracts or resolving disputes; such decisions may require consultation with counsel and depend on various factors. © 2025 Environmental Risk Professionals, LLC

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