The Acute Toxicity of HEPA Filters on Reactive Oxygen Species (ROS) and the Heavy Metal Analysis in the Common Carp Fish (Cyprinus carpio)

This study aimed to investigate the acute toxicity (LC50) of a HEPA filter and its impact on the levels of reactive oxygen species (ROS) and heavy metal accumulation in common carp fish. In this study, carp observing approximately 8-9 cm in length were subjected to various concentrations of HEPA filters, such as 5%, 10%, 20%, 30%, and 40%. The findings of the study indicated that the utilization of a HEPA filter had an obvious effect on the levels of reactive oxygen species (ROS) in common carp fish. especially it was observed that the ROS level experienced a significant increase at a concentration of 40% (40 pg/mL). The concentrations of heavy metals Ag and Cu in the gill tissue exhibited a significant increase at a concentration of 40%, with values of 0.04 ppm and 0.013 ppm, respectively. In the gastric tissue, there was a notable increase in the concentration of heavy metals at 40% (approximately 0.015 ppm and 0.010 ppm, respectively).  The HEPA filter exhibits acute toxicity with an LC50 value of 39.65% concentration. In addition to this specific concentration, it has the potential to adversely impact the health of aquatic organisms at the tissue and organ levels.