Sion Lee¹, Suin Jeon¹, Sang Tak Lee¹, Hanbyeol Lee¹, Han Bin Oh^1*

Sogang Univ, 35, Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea

With the outbreak of COVID19, quarantine is considered a very important issue worldwide. Among the various quarantine substances, commonly used chemical species is benzalkonium chloride (BKC) which is quaternary ammonium compound. Accordingly, there is a need to conduct a risk assessment of quaternary ammonium compound, a widely used quarantine substance. Inhalation toxicity of BKC has thus been extensively studied worldwide. In the hazard assessment of BKCs, the measurements of the BKC in air after quarantine is important. For this purpose, we have developed a 3D printed passive sampler for BKC. BKC was sprayed using a small ultrasonic injection device in a 125 L chamber, and two passive air samplers were suspended in the air to collect BKC sprayed in the air to analyze the collected amount. It was found that a passive sampmer filled with XAD2 resin can adsorb a relatively small amount of BKCs. As an extension, in near future, the same experiment will be conducted in a large chamber of 5000 L, and intervention research will be conducted with the quarantine company recruited.