Chemical Exposure and Bladder Cancer Risk 

Chemical exposure can increase the risk of bladder cancer. Researchers have linked certain workplace chemicals, PFAS, arsenic in drinking water, and other environmental contaminants to higher bladder cancer rates. The level of risk depends on the type of chemical, duration of exposure, and individual factors. 

Can chemical exposure increase the risk of bladder cancer? 

Yes. Exposure to certain chemicals in the workplace and environment has been linked to an increased risk of bladder cancer. Researchers have found several substances that may damage the bladder over time, including aromatic amines used in manufacturing, PFAS (“forever chemicals”), arsenic in drinking water, and nitrate contamination. 

The risk generally depends on the type of chemical, the level of exposure, and how long a person is exposed. While not everyone exposed to these substances develops bladder cancer, reducing exposure whenever possible may help lower risk. 

Which chemicals are linked to bladder cancer? 

Several chemical exposures have been associated with an increased risk of bladder cancer, including: 

• Aromatic amines used in industrial manufacturing 

• PFAS (per- and polyfluoroalkyl substances) 

• Arsenic in drinking water 

• Nitrate contamination in drinking water 

• Certain chemicals used in dye, rubber, leather, paint, textile, and printing industries 

Many of these substances can enter the body through inhalation, skin contact, or contaminated water and are eventually filtered through the kidneys into the urine, where they touch the bladder’s lining. 

Can workplace chemicals increase bladder cancer risk? 

Yes. Occupational exposure to certain chemicals has long been recognized as a bladder cancer risk factor. 

Industries with higher occupational exposure:

Rubber manufacturing 

Leather processing 

Printing 

Textile production 

Paint manufacturing 

Dye production 

Workers in rubber, dye, leather, paint, printing, and textile manufacturing may be exposed to chemicals that can enter the body through inhalation or skin contact. Long-term exposure has been associated with an increased risk of bladder cancer.

What are aromatic amines? 

Aromatic amines are chemicals used in dyes, pigments, rubber production, and other industrial processes. Some aromatic amines have been classified as cancer-causing substances by public health agencies. 

People who have worked around these chemicals for many years should discuss their exposure history with a healthcare provider, especially if they experience symptoms such as blood in the urine. 

What are PFAS and how are they linked to bladder cancer? 

PFAS (per- and polyfluoroalkyl substances) are a large group of human-made chemicals used in industrial and consumer products. They are often called “forever chemicals” because they break down slowly in the environment and the human body. 

Research suggests PFAS exposure may increase the risk of several health conditions, including some cancers. Scientists continue to study the relationship between PFAS exposure and bladder cancer. 

PFAS may be found in: 

Nonstick cookware 

Water-resistant clothing and fabrics 

Firefighting foam 

Food packaging 

Industrial manufacturing sites 

Because PFAS can contaminate drinking water supplies, they have become an increasing public health concern. 

Can arsenic in drinking water increase bladder cancer risk? 

Research suggests that long-term exposure to arsenic in drinking water may increase the risk of bladder cancer. 

Arsenic can occur naturally in groundwater or enter water supplies through industrial and agricultural contamination. Studies conducted around the world have consistently found higher bladder cancer rates among people exposed to elevated arsenic levels. 

Learn More 

A study of wells in northern New England found that drinking water from private wells may have contributed to the elevated risk of bladder cancer 

Can nitrate in drinking water increase bladder cancer risk? 

Nitrate is a common drinking water contaminant that often originates from: 

• Agricultural fertilizers 

• Septic systems 

• Animal waste runoff 

Some research suggests that long-term exposure to elevated nitrate levels may increase bladder cancer risk, although more studies are needed. 

Learn More 

The Iowa Women’s Health Study showed elevated nitrate in drinking water was associated with an increased risk of bladder cancer.

How can I reduce exposure to contaminants in drinking water? 

While it may not be possible to eliminate all exposure, several steps can help reduce risk. 

Test your water regularly 

If you use a private well, the U.S. Environmental Protection Agency (EPA) recommends annual testing for: 

• Nitrate 

• Bacteria 

• Arsenic 

• Pesticides 

• Volatile organic compounds (VOCs) 

Consider water filtration 

Some contaminants can be removed through: 

• Reverse osmosis systems 

• Distillation systems 

• Ion exchange systems 

Not all household water filters remove arsenic or nitrate, so choosing a filtration system based on your water quality results is important. 

Review local water quality reports 

Public water systems provide annual water quality reports that can help you understand potential contaminants in your area. 

Contact your water utility 

Ask about contaminant testing, treatment methods, and efforts to reduce disinfection byproducts and other chemicals. 

Key Takeaways 

• Certain workplace and environmental chemicals have been linked to bladder cancer. 

• Occupational exposure to aromatic amines is a well-established risk factor. 

• PFAS, arsenic, and nitrate contamination are active areas of bladder cancer research. 

• Testing private well water and reducing exposure to known contaminants may help lower risk. 

• Anyone concerned about chemical exposure should discuss their history with a healthcare provider. 

Resources

Smoking and Bladder Cancer

Bladder Cancer Risk Factors

Blood in Urine (Hematuria)

Bladder Cancer Symptoms