Spatial characteristics and health risks assessments of trace metal pollution from road dusts in the industrialized city of Bangladesh

• DOI: 10.1016/j.heliyon.2025.e42008
• Publication Date: 2025-01-18T18:03:20Z
• Authors: Masum Howlader; Ashik Md Mamun; Mohammad Mahfuzur...; Md Hasibur Rahman; Sadhon Chandra Sw...; Mahfuza Sultana; Md Tanvir Rahman; Tusar Kumar Das
• Keywords: Trace metal; TRACE (psycholinguistics); Road dust

This study aimed to explore the presence of trace metallic pollutants and its associated health hazards in street dust from Gazipur City, one Bangladesh's heavily industrialized urban centers. Thirty samples were collected, considering city's industrial activity population density. These underwent analysis using ICP-MS detect potential toxic metals. Subsequently, level pollution human risks evaluated. The mean concentration Bi (3.56 ± 2.10 mg/kg), Cd (0.71 0.29 Co (4.03 1.09 Cr (29.05 25.44 Cu (17.36 40.56 Ga (134.96 45.39 In (2.25 1.32 Mn (195.13 191.15 Ni (20.31 19.67 Pb (16.28 3.68 Ti (1.72 1.51 mg/kg) Zn (44.96 22.40 mg/kg). element-specific environmental indices represent that geo-accumulation index follows descending order (3.55 1.54) > (3.48 1.08) (2.51 0.48) (1.06 0.73) (-0.23 0.33), while contamination factor fallows (22.54 12.57) (20.96 12.13) (8.99 2.97) (3.53 1.41) (1.30 0.29) (0.64 0.31). average calculated load is 0.68. results dendrogram showed those mainly originate two different sources. PCA (principal component analysis) also support dendrogram, which illustrate corrosion weathering automobile parts other metal materials are main contributors Cd, Co, Cr, Pb. contrast, use leaded gasoline, car surfaces road paint lead dust. hazard (HI) impose moderate high non-carcinogenic risks. infant's cancer risk for (1.66-05) (1.59-04) very close upper limit (10-4 10-6). Additional protective measures ought be contemplated diminish exposure among adults infants.