Which state has a quarantine on mussels from May 1 to Oct 31?

The correct answer indicates that California has a quarantine on mussels from May 1 to October 31. This seasonal ban is primarily a public health measure aimed at protecting consumers from potential health risks associated with the consumption of mussels during certain times of the year when the levels of toxins, particularly domoic acid, can become elevated.

During the warmer months, conditions can lead to harmful algal blooms that produce toxins harmful to humans and marine life. Consequently, the state implements this quarantine to minimize the risk of those toxins entering the food chain, thereby ensuring that seafood remains safe for consumption.

In contrast, other states listed may have different regulations or do not have a specific quarantine period for mussels aligned with those dates, which is why the focus is on California for this particular question. Understanding these regulations is crucial for food safety and public health.