Comparison of DA levels with previous studies (n- indicates the number of positive samples).

 
 
  Part of: Peteva ZV, Georgieva SK, Knock B, Max T, Stancheva MD, Valkova S (2023) ´╗┐Occurrence of marine biotoxins on Bulgarian Black Sea coastal waters in 2021. In: Chankova S, Danova K, Beltcheva M, Radeva G, Petrova V, Vassilev K (Eds) Actual problems of Ecology. BioRisk 20: 71-81. https://doi.org/10.3897/biorisk.20.97557