Asbestos was never a safe material. It was a cheap one. For most of the 20th century, the U.S. mined it aggressively, used it in thousands of products, and disposed of it with almost no regulatory oversight. The environmental consequences of that are still active. Contaminated mine sites, asbestos-laced soil, and improperly managed demolition waste continue to expose people who never worked a day in a mine or a shipyard.
This Earth Day, the question worth asking is not whether asbestos harmed the environment. It did. The more useful question is where that contamination still exists and who is still being exposed because of it.
How Did Asbestos Mining Contaminate Communities?
The United States mined asbestos commercially from the mid-1800s through the 1970s. The largest operations were concentrated in California, Montana, Vermont, and Arizona. When mining stops, the contamination does not.
Asbestos ore leaves behind tailings, which are piles of crushed rock that still contain loose mineral fibers. Those piles sit exposed to wind and rain. Over time, fibers migrate into surrounding soil, groundwater, and the air during dry or windy conditions. In some former mining towns, residents used mine tailings as gravel for driveways and playground surfaces before anyone fully understood what they were handling.
Libby, Montana is the most documented example of this in U.S. history. The W.R. Grace vermiculite mine operated there for decades and contaminated the entire town. The EPA designated Libby a public health emergency in 2009, the first time that designation had been applied to a specific community in the agency’s history. Hundreds of Libby residents have died from asbestos-related disease. Cleanup operations have continued for more than 20 years and are still not complete.
Libby is not an isolated case. It is the most studied one.
What Is the Problem With Asbestos Disposal?
Asbestos-containing materials removed during building demolition and renovation are classified as hazardous waste under federal law. They must be wetted, sealed in approved containers, labeled, transported by licensed haulers, and deposited at permitted landfills that maintain asbestos-specific disposal protocols.
In practice, that system breaks down in several ways.
Illegal dumping remains a documented problem in states with active demolition activity. Asbestos-containing drywall, pipe insulation, and floor tiles are sometimes disposed of in municipal landfills or open lots rather than permitted hazardous waste facilities, either to avoid cost or because contractors misidentify the materials.
Landfill integrity is a separate concern. Even in permitted facilities, asbestos-containing waste can become a risk if the landfill is disturbed, if containment barriers degrade, or if the site is redeveloped without full knowledge of what is buried there. Many older landfills that accepted asbestos waste before modern regulations were in place are not marked or documented with the accuracy needed for safe future land use.
Demolition without testing is the most common exposure pathway created by disposal failures. Federal regulations require that buildings be inspected for asbestos before demolition or renovation. When that step is skipped, workers and nearby residents can be exposed to airborne fibers without knowing it.
The EPA’s National Emission Standards for Hazardous Air Pollutants for asbestos govern demolition and disposal practices. The core requirements, including sealing waste in leak-tight containers while wet, using only permitted landfills, and providing at least ten days advance notice before any demolition begins, remain in force. Enforcement, however, is complaint-driven and often inconsistent at the state level.
What Are Asbestos Superfund Sites and Who Lives Near Them?
The EPA’s Superfund program identifies and prioritizes the country’s most contaminated hazardous waste sites for cleanup. Asbestos contamination is present at a significant number of active Superfund sites. Some of these are former mine sites. Others are manufacturing facilities, former Navy yards, and illegal dump sites.
People who live near Superfund sites are not necessarily at immediate risk, but the designation signals that contamination is present at levels that require active management. In some cases, residents have been found to have measurable asbestos fiber burdens in their lungs without any occupational exposure. The contamination came from the environment they lived in.
The challenge with Superfund cleanup timelines is that they are measured in decades, not years. Libby is the most visible example, but similar dynamics play out at smaller sites where there is less public attention and fewer resources driving cleanup forward.
If you are uncertain whether a former residence or community is near a designated asbestos contamination site, the EPA’s Superfund site search tool is publicly accessible and searchable by state and zip code.
Does Environmental Asbestos Exposure Cause Mesothelioma?
Yes. There is no safe level of asbestos exposure established by science. Mesothelioma, the cancer most directly linked to asbestos, has been diagnosed in people with no occupational history but documented environmental exposure. This includes individuals who grew up near mines, lived in homes with heavily disturbed asbestos-containing materials, or resided in communities with contaminated soil.
The latency period for mesothelioma is typically 20 to 50 years from first exposure to diagnosis. This is why people are still being diagnosed from exposures that happened in the 1970s and 1980s. It is also why environmental contamination from mining and improper disposal is not a historical problem. It is an ongoing one.
Asbestos-related lung cancer carries a similar risk profile. Both diseases are largely preventable. Both are still occurring because the material remains in buildings, soil, and waste sites throughout the country.
What Is Happening Right Now With Federal Asbestos Regulation?
This Earth Day lands at an unusually consequential moment for asbestos policy.
In March 2024, the EPA finalized a rule banning the ongoing use of chrysotile asbestos, the only form still being imported into the United States, under the Toxic Substances Control Act. It was the most significant federal regulatory action on asbestos in decades. Industry groups, including chemical manufacturers, immediately challenged the rule in the Fifth Circuit Court of Appeals.
That challenge succeeded in slowing the rule down. In mid-2025, the Fifth Circuit granted the EPA’s own request to pause the litigation while the agency reconsidered the ban. The EPA has since announced that it will not reconsider the ban and is allowing the legal challenge to proceed forward in the Fifth Circuit. Oral argument is scheduled for June 2026.
The underlying rules governing demolition, renovation, and disposal remain in effect. But the broader question of whether the U.S. will fully eliminate remaining asbestos uses, something more than 55 countries have already done, is unresolved and actively contested.
What Should You Do If You Lived Near a Contaminated Site?
If you lived near a former asbestos mine, a Superfund site with asbestos contamination, or a community with a documented history of asbestos exposure and you have developed mesothelioma or asbestos-related lung cancer, that exposure history is legally relevant. Contact an attorney experienced in representing mesothelioma victims to discuss your legal options.
