Which is NOT considered a chronic effect from chemical exposure?

Acute poisoning is considered a sudden and severe reaction to a toxic substance, resulting in immediate symptoms following exposure. This type of reaction typically requires urgent medical intervention and occurs over a short time frame, distinguishing it from chronic effects, which develop slowly and persist for a long time.

In contrast, allergic reactions, cancer, and endocrine disruption are examples of chronic effects that can take time to develop and may last for extended periods, often requiring long-term management or treatment. Allergic reactions can persist with repeated exposures, cancer can develop after prolonged exposure to carcinogens, and endocrine disruption can influence hormonal systems over time, leading to various health issues. Therefore, acute poisoning is not classified as a chronic effect, highlighting its immediate and transient nature.