DDT, which is a toxic pesticide, transfers from a mother sea lion to a pup through nursing. Even if the pup is not directly exposed to the DDT, it can be indirectly exposed through its mother's milk.
DDT gets into animal tissue and remains there, building up over time. It typically gets into the animal from the things that the animal eats. With very young animals, the DDT get from the mother to the pup after the pup is born by passing through the mother's milk and into the pup.
It passes from the mothers bloodstream, and into the pup
Breastfeeding can influence the concentration of DDT (dichlorodiphenyltrichloroethane) in both mother and baby because DDT and its metabolites can accumulate in human fat tissues, including breast milk. When a mother who has been exposed to DDT breastfeeds, the chemical can be transferred to the infant through the milk, potentially leading to higher concentrations in the baby than in the mother. Additionally, the duration and exclusivity of breastfeeding can impact the levels of DDT exposure, as prolonged breastfeeding may lead to a cumulative effect in the infant. Consequently, monitoring and managing DDT exposure in breastfeeding mothers is crucial for infant health.
Many animals migrate at specific times of the year. An organism with DDT in its tissues may migrate a distance from the area it was sprayed; it may be consumed by a carnivore that would store a higher concentration of DDT in its body tissue. Migrating birds can carry DDT in their bodies even though they inhabit and can be consumed in an ecosystem that is distant from the one that is sprayed. The peregrine falcon is a species of bird found to have high concentrations of DDT in its body. The habitat of the falcon is quite broad, ranging from the North American boreal forest to areas of the southern United States. Falcon prey on organisms in areas where use of DDT is still prevalent, then migrate to areas where the use of DDT has been banned.
DDT can be stored in fatty tissues of humans. In women who are pregnant, DDT exposure can occur even in the fetus.
animals that live near crops
Many animals migrate at specific times of the year. An organism with DDT in its tissues may migrate a distance from the area it was sprayed; it may be consumed by a carnivore that would store a higher concentration of DDT in its body tissue. Migrating birds can carry DDT in their bodies even though they inhabit and can be consumed in an ecosystem that is distant from the one that is sprayed. The peregrine falcon is a species of bird found to have high concentrations of DDT in its body. The habitat of the falcon is quite broad, ranging from the North American boreal forest to areas of the southern United States. Falcon prey on organisms in areas where use of DDT is still prevalent, then migrate to areas where the use of DDT has been banned.
DDT is an insecticide.
DDT is a pesticide.
DDT is dichlorodiphenyltrichlorethane; biomagnification of DDT in some organisms is possible.
Top carnivores.
Typically, zooplankton accumulate higher concentrations of DDT in their bodies compared to small fish. This is due to a process called biomagnification, where toxins like DDT become more concentrated at each level of the food chain. Zooplankton, being at the base, absorb DDT from the water and sediments, and when small fish consume them, the concentration of DDT increases in the fish. Thus, while both may contain DDT, small fish generally have higher levels due to their position in the food web.