“California Pistachios Contaminated with Ochratoxin A, Caused by Aspergillus Species”

https://pubmed.ncbi.nlm.nih.gov/38115568

The study found that 20% of California pistachio samples contained Ochratoxin A (OTA), a potent mycotoxin, with 18% exceeding the EU regulatory limit, and identified Aspergillus westerdijkiae, A. ochraceus, and A. melleus as the main causal agents.