We don't know the effects from long-term exposure to low levels of endosulfan. Animal studies have shown effects on the kidneys, testes, developing fetus, and liver from longer-term exposure to low levels of endosulfan. The ability of animals to fight infection was also lowered. The Department of Health and Human Services has not classified endosulfan as to its human carcinogenicity. Animal studies have not shown that endosulfan causes cancer, and no studies in people are available.
Tests are available to measure endosulfan levels in the body.
These tests measure endosulfan in blood, urine, and body tissues. Because endosulfan leaves the body fairly quickly, these methods are useful only for finding exposures that have occurred within the last few days. These tests are not usually available in your doctor's office. However, a sample taken in the doctor's office can be shipped to a special laboratory if necessary. The EPA requires that discharges or spills into the environment of 1 pound or more of endosulfan be reported.