Study Reveals Ubiquitous Presence of Potential Breast Carcinogens in U.S. Environment
A recent study published in Environmental Health Perspectives indicates that potential breast carcinogens are widespread throughout the U.S. environment. These chemicals are found in various everyday sources, including consumer products, food, drinking water, and pesticides. Researchers compiled a list of 921 chemicals with breast cancer-relevant bioactivities (BC-Chems), which can induce mammary tumors in rodents or disrupt hormones like estradiol, progesterone, or estrogen. Analysis of U.S. government databases revealed that 143 BC-Chems were produced in quantities exceeding 1 million pounds in 2019, with petrochemicals used in plastics manufacturing being a major source. The study found that 500 BC-Chems are known or predicted to be in consumer products, 485 in pesticide formulations, 462 in dietary sources, 162 in drinking water, 142 in pharmaceuticals, and 106 in construction materials. Predicted median daily intake of these chemicals was higher for females, especially those of reproductive age.
