Monitoring of PCBs at facilities related with PCB-containing products and wastes in South Korea

► PCB monitoring at facilities related with PCB-containing products in South Korea was conducted. ► PCA analysis shows that the PCB homologue patterns in air samples were similar to those in some of PCB commercial products. ► PCB mass balance was calculated in a facility related to PCB-containing products and wastes. ► PCB emissions from PCB-containing products and wastes may be an important source to atmospheric PCBs.