Several trace metals exhibit high enrichment in indoor dust due to urban and indoor sources. Elevated enrichment factor (EF) values highlight long-term deposition from outdoor particle resuspension, material abrasion, and human activities like cleaning and smoking. Cd, Pb, and Zn have extremely high enrichment (EF100), while Cu is also very highly enriched (EF = 86.5). Mn shows moderate enrichment, and Co, Cr, and Ni are significantly enriched, indicating that indoor environments can accumulate trace metals over time.