Autor segons l'article: Khajooee N; Modabberi S; Khoshmanesh Zadeh B; Razavian F; Gayà-Caro N; Sierra J; Rovira J
Departament: Ciències Mèdiques Bàsiques
Autor/s de la URV: Gaya Caro, Nuria / Rovira Solano, Joaquim
Paraules clau: Urban metal source Potentially toxic elements Pollution load index Indoor settled dust Contamination factor
Resum: Tehran, the capital city of Iran, has been facing air pollution for several decades due to rapid urbanization, population growth, improper vehicle use, and the low quality of fuels. In this study, 31 indoor dust samples were collected passively from residential and commercial buildings located in the central and densely populated districts of the city. These samples were analyzed after preparation to measure the concentration of elements (As, Be, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, Se, Sr, V, Zn). Statistical data analyses were employed to compare their relationship across various uses, variations, and for source identification. Geochemical indices of contamination factor (CF) and pollution load index (PLI) were utilized to evaluate the degree of contamination. The mean concentrations of Zn, Cu, and Pb (938, 206, and 176 µg g-1, respectively) are 6, 5, and 3 times higher than their mean values in worldwide urban soils. Additionally, Cd, Mo, and Ni showed concentrations about 1.5 times higher, while As, Co, Cr, Mn, and Sr fell within the range of reference soils. Be, V, and Sb displayed remarkably lower mean values. Building use did not significantly influence element levels in indoor deposited dust except for Pb and Zn. A comparison of indoor concentrations with previously published data for outdoor dusts revealed higher enrichments of Mo, Cu, Pb, and Ni, while As, Cd, and Zn showed lower enrichments in street dust samples. The order of CF values indicated Hg > Zn > Cd > Pb > Cu > As > Ni > Cr > Co > V. For Hg, Zn, Pb, Cd, and Cu, all or almost all samples exhibited very high contamination. PLI values were consistently higher than 1, indicating contamination in all samples. Multivariate statistical analysis and Tehran's specific geological location suggested that mafic-intermediate volcanic rocks are primary sources for Cr, Cu, Fe, and Ni (PC1). As, Pb, and V (PC2) were attributed to fossil fuel combustion in vehicles and residential buildings. Pb is a legacy metal remaining from the use of leaded gasoline, which was phased out in the 1990s. Zn (PC3) is derived from vehicle tires.© 2024. The Author(s), under exclusive licence to Springer Nature B.V.
Àrees temàtiques: Water science and technology Water resources Química Public, environmental & occupational health Planejamento urbano e regional / demografia Medicine (miscellaneous) Medicina ii Materiais Interdisciplinar Geografía Geociências Geochemistry and petrology General environmental science Environmental sciences Environmental science (miscellaneous) Environmental science (all) Environmental engineering Environmental chemistry Engineering, environmental Engenharias ii Engenharias i Ciências biológicas ii Ciências ambientais Ciências agrárias i Biotecnología Biodiversidade
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: joaquim.rovira@urv.cat nuria.gaya@estudiants.urv.cat nuria.gaya@estudiants.urv.cat
Identificador de l'autor: 0000-0003-4399-6138
Data d'alta del registre: 2024-09-21
Versió de l'article dipositat: info:eu-repo/semantics/submittedVersion
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Environmental Geochemistry And Health. 46 (2): 56-56
Referència de l'ítem segons les normes APA: Khajooee N; Modabberi S; Khoshmanesh Zadeh B; Razavian F; Gayà-Caro N; Sierra J; Rovira J (2024). Contamination level, spatial distribution, and sources of potentially toxic elements in indoor settled household dusts in Tehran, Iran. Environmental Geochemistry And Health, 46(2), 56-56. DOI: 10.1007/s10653-023-01838-8
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2024
Tipus de publicació: Journal Publications
Repositori URV