Why was DDT banned?

The rationale behind the ban on DDT stems from its stability and persistence in the environment. DDT, or dichlorodiphenyltrichloroethane, is a synthetic pesticide that does not break down easily when released into the environment. Instead, it can remain in soil and water for many years, leading to bioaccumulation in the food chain. This means that as organisms consume DDT, the concentration of the chemical can increase in their bodies over time, even at low levels of exposure.

The environmental persistence of DDT has led to severe ecological consequences, including the decline of various wildlife populations, particularly birds. Species such as the bald eagle and the peregrine falcon suffered from eggshell thinning, which significantly reduced their reproductive success. The widespread and lasting effects of DDT on ecosystems initiated significant public concern, scientific investigation, and ultimately regulatory actions, leading to its ban in many countries during the 1970s.

While DDT was effective against certain pests at the time of its use, its continued application posed substantial risks to the environment and wildlife. The chemical's toxicity to humans, although a significant consideration, was not the primary factor cited in the banning legislation. Factors like plant growth disruption existed but were not as