PMID- 28865066 OWN - NLM STAT- MEDLINE DCOM- 20180816 LR - 20181113 IS - 1573-2983 (Electronic) IS - 0269-4042 (Linking) VI - 40 IP - 2 DP - 2018 Apr TI - Spatial distribution and human health risk assessment of mercury in street dust resulting from various land-use in Ahvaz, Iran. PG - 693-704 LID - 10.1007/s10653-017-0016-5 [doi] AB - Mercury as a toxic element and its associated health hazard has been an important topic of research for urban pollution for many years. In this paper, the spatial distribution, pollution assessment, and health risk associated with Hg in roadside dust 96 street dust samples, representing differing land-uses, have been investigated. Land-uses included residential areas (RA), industrial areas (IA), public gardens (PG), roadside areas (RS), and suburban areas (SA) in the city of Ahvaz, Iran were investigated. Compared with other cities, the concentration of Hg in Ahvaz was considerably higher with a mean value of 2.53 mg kg(-1), ranging from 0.02 to 8.75 mg kg(-1). Residential areas exhibited higher Hg in street dust than other areas, as demonstrated by spatial mapping illustrating hot spots associated with old urban areas with high residential density, high volume traffic of roadside areas, and industrial districts: including oil-drilling activities, steel smelting-related industries, and small industrial towns around Ahvaz. However, Hg concentrations in street dust near to the public gardens (PG) and suburban areas (SA) were not at elevated levels compared other land-uses investigated in this study. A health risk assessment model of non-carcinogenic effects was evaluated for both children and adults. The HQ values also revealed that the main exposures route for children and adults decreased as follows: vapour > ingestion > dermal contact > inhalation. The hazard index (HI) in each area is less than the safe level (HI IA > RA > SA > PG, which indicates potentially serious health hazards for children in the study areas. FAU - Nazarpour, Ahad AU - Nazarpour A AD - Department of Geology, Islamic Azad University, Ahvaz Branch, Ahvaz, Iran. A.nazarpour@iauahvaz.ac.ir. FAU - Ghanavati, Navid AU - Ghanavati N AD - Department of Soil Science, Islamic Azad University, Ahvaz Branch, Ahvaz, Iran. FAU - Watts, Michael J AU - Watts MJ AD - Inorganic Geochemistry, Centre for Environmental Geochemistry, British Geological Survey Keyworth, Keyworth, UK. LA - eng PT - Journal Article DEP - 20170901 PL - Netherlands TA - Environ Geochem Health JT - Environmental geochemistry and health JID - 8903118 RN - 0 (Dust) RN - 0 (Vehicle Emissions) RN - FXS1BY2PGL (Mercury) SB - IM MH - Adult MH - Child MH - Dust/*analysis MH - *Environmental Exposure MH - Humans MH - Industry MH - Iran MH - Mercury/*analysis/toxicity MH - *Population Health MH - Risk Assessment MH - Vehicle Emissions OTO - NOTNLM OT - Ahvaz OT - Health assessment OT - Iran OT - Mercury OT - Street dust EDAT- 2017/09/03 06:00 MHDA- 2018/08/17 06:00 CRDT- 2017/09/03 06:00 PHST- 2017/03/24 00:00 [received] PHST- 2017/08/11 00:00 [accepted] PHST- 2017/09/03 06:00 [pubmed] PHST- 2018/08/17 06:00 [medline] PHST- 2017/09/03 06:00 [entrez] AID - 10.1007/s10653-017-0016-5 [pii] AID - 10.1007/s10653-017-0016-5 [doi] PST - ppublish SO - Environ Geochem Health. 2018 Apr;40(2):693-704. doi: 10.1007/s10653-017-0016-5. Epub 2017 Sep 1.