Asbestos kills roughly 230,000 people worldwide every year, making it the leading risk factor for occupational cancer globally. In the United States alone, nearly 55,000 people died from mesothelioma (the cancer most closely linked to asbestos) between 1999 and 2020. And mesothelioma represents only a fraction of total asbestos deaths, which also include lung cancer, asbestosis, and other respiratory diseases.
The Global Death Toll
In 2023, approximately 230,698 deaths worldwide were attributed to cancers caused by occupational asbestos exposure, according to the Global Burden of Disease Study. That figure accounts for 4.1 million disability-adjusted life years, a measure that captures both premature death and years lived with serious illness. These numbers reflect only cancers tied to workplace exposure. Deaths from environmental or secondhand exposure push the real total higher, though precise global counts for those categories remain difficult to pin down.
High-income North America carries the heaviest burden, with 5.1 deaths per 100,000 people. Southern Latin America ranks second at 2.7 per 100,000. The pattern reflects decades of heavy industrial asbestos use in these regions, combined with the unusually long gap between exposure and disease.
U.S. Deaths by the Numbers
From 1999 to 2020, 54,905 Americans died from mesothelioma, averaging about 2,500 deaths per year. The age-adjusted mortality rate dropped from 8.5 per million in 1999 to 5.7 per million in 2020, a decline of roughly 1.9% annually. That downward trend reflects regulations that reduced asbestos use starting in the 1970s and 1980s, though the improvements take decades to show up in death statistics because of how long asbestos diseases take to develop.
Mesothelioma deaths are only part of the picture. Asbestos also causes lung cancer, asbestosis (a scarring disease of the lungs), and cancers of the larynx and ovaries. Lung cancer caused by asbestos is difficult to separate statistically from lung cancer caused by smoking or other factors, which means U.S. totals for all asbestos-related deaths are substantially higher than the mesothelioma count alone.
Why Deaths Happen Decades After Exposure
One of the most striking things about asbestos is how long it hides. The average time between first exposure and disease is about 30 years, but it can stretch to 60 or more. A study of power industry workers found that the median time from asbestos exposure to death was 46 years for mesothelioma and 44 years for lung cancer. Deaths typically occurred between ages 64 and 82.
This extreme latency period explains why asbestos is still killing people in large numbers today, even in countries that restricted its use decades ago. Someone who worked in construction or shipbuilding in the 1970s may only now be developing symptoms. It also means that countries which used asbestos heavily into the 1990s and 2000s have not yet seen their peak death tolls.
Who Is Most at Risk
Men account for the large majority of asbestos deaths, primarily because of occupational exposure in industries like construction, manufacturing, shipbuilding, and power generation. An estimated 85% of mesotheliomas in men are linked to workplace asbestos contact.
Women are affected too, though the pattern differs. Between 1999 and 2020, 12,227 American women died of mesothelioma. Only about 23% of those cases were tied to direct occupational exposure. The rest came from other sources: living with a worker who brought fibers home on clothing, residing near asbestos-containing buildings, or environmental contamination. A mortality study of 878 household contacts of asbestos workers found that 4 out of 115 deaths were from mesothelioma, and the overall cancer death rate was double the expected level.
Age plays a major role as well. Among women who died of mesothelioma in the U.S., over 90% were 55 or older, with the largest group (about 33%) between 75 and 84. Younger cases do occur but are rare, representing less than 3% of deaths among those under 45.
Secondhand and Environmental Exposure
Not everyone who dies from asbestos worked directly with the material. Family members of asbestos workers have long faced elevated risks simply from handling contaminated work clothes or living in homes where fibers were tracked in. The World Health Organization notes that a substantial level of deaths and illness are attributed to asbestos exposure outside the workplace, though global figures for this category are not tracked with precision.
Environmental exposure adds another layer. Communities near naturally occurring asbestos deposits, old mines, or buildings insulated with asbestos-containing materials face chronic low-level exposure that can, over decades, prove fatal. In some countries, asbestos-containing roofing and building materials remain widespread. A Korean study projected that asbestos-containing slate buildings alone would cause up to 555 additional deaths by 2031, with mortality peaking around 2021.
Why the Numbers Are Still Rising in Some Places
In wealthy nations like the U.S., U.K., and Australia, asbestos death rates have begun to level off or decline as bans and regulations from the late 20th century finally take effect. But in countries that continued mining and using asbestos more recently, including parts of Asia, Latin America, and the former Soviet Union, the worst is likely still ahead. Because the latency period stretches 30 to 60 years, peak deaths in these regions may not arrive until the 2030s or 2040s.
Even in countries where rates are falling, the cumulative toll continues to grow. The 230,000 annual deaths globally mean that over the first quarter of the 21st century alone, asbestos will have killed well over 5 million people, a number that dwarfs most other occupational hazards. The long tail of this epidemic is a direct consequence of the decades during which asbestos was considered a miracle material and used in everything from brake pads to ceiling tiles to pipe insulation.