What duration is noted for the incubation period of mercury poisoning?

The incubation period for mercury poisoning can vary significantly depending on the form of mercury involved and the level of exposure. Generally, for organic mercury compounds, such as methylmercury, the onset of symptoms can occur over a longer duration, which aligns with the option indicating 1 week or longer. This extended incubation period allows for the gradual accumulation of mercury in the body, which may not elicit immediate symptoms after exposure.

In contrast, other forms of mercury, like elemental mercury, may show symptoms relatively quickly, but the chronic effects linked with organic mercury often manifest after a delay, leading to neurologic and systemic symptoms significantly after the initial exposure. Understanding the different types of mercury and their health implications helps clarify why the incubation period can be extensive in cases of mercury poisoning.