Which toxin category includes toxins associated with algae?

• A. Mycotoxins
• B. Bacterial
• C. Algal
• D. Plant

Answer: (C)

Toxins are grouped by the organism that produces them, so those linked to algae fall under the algal category. Algal toxins come from organisms associated with algae in aquatic environments, such as dinoflagellates and cyanobacteria, and they can contaminate water and seafood (for example, toxins produced during harmful algal blooms). The other categories refer to toxins from other origins: mycotoxins come from fungi, bacterial toxins from bacteria, and plant toxins from plants. While cyanobacteria are bacteria, their toxin classification is often discussed as algal toxins in the context of bloom-related risks, which is why this category is the best fit for toxins associated with algae.