What Are Bisphenols?

Bisphenol A (BPA) is a synthetic chemical widely used in consumer products. It is known as an endocrine disruptor, meaning it can interfere with hormone systems. BPA exposure has been linked to:

• Reproductive toxicity
• Cancer
• Immune system toxicity
• Asthma
• Cognitive and behavioral issues in children
• Chronic diseases

BPA Alternatives: Not Necessarily Safer

Products labeled “BPA-free” often contain alternatives like BPS, BPF, and BPAF. These substitutes have similar chemical structures and are believed to cause similar health effects, including endocrine disruption and obesity in children. Their safety is not yet fully understood.

Who Is Most at Risk?

Pregnant women and children are the most vulnerable to the harmful effects of bisphenol exposure due to their developing systems and higher sensitivity. In pregnant women, exposure is especially concerning because these substances can affect both their health and the development of their unborn baby.

How Are We Exposed?

Although about 90% of BPA exposure comes from diet, indoor environments are a major source of non-dietary exposure:

• Dust ingestion: 60%
• Inhalation: 36%
• Skin contact: 4%

Indoor air and dust often contain higher concentrations of bisphenols than outdoor environments. This is especially concerning since people in developed countries spend over 90% of their time indoors.

Why Indoor Environments Matter

Residential homes are key exposure sites due to the widespread use of BP-containing products and limited ventilation. These products contribute to the continuous presence of bisphenols in indoor air and dust, making exposure persistent, even though BPA itself is not environmentally persistent.