A Subway sandwich location in Pittsburgh was temporarily shut down following a health inspection that flagged mold contamination and improperly stored tuna, reports indicate. Health inspectors likely found evidence of mold growth in food prep or storage areas alongside temperature violations involving tuna salad, which must be kept below 41 degrees Fahrenheit to prevent bacterial growth. Restaurants that fail to meet these standards are subject to immediate closure orders until violations are corrected and reinspected. Mold in food service environments is a serious public health concern, as certain mold species produce mycotoxins that may pose health risks when ingested. The combination of mold and a protein-based food stored at unsafe temperatures would typically prompt regulators to act quickly. According to local news, the closure appeared to be part of routine health department enforcement activity. The location was likely permitted to reopen once inspectors confirmed corrective actions had been taken. Food safety advocates often point to such cases as reminders of the importance of regular restaurant inspections.