Abstract
This study sought to define the metals bioaccumulation from street dust in Baghdad, Iraq for the first time. The samples were collected that research the levels, sources, and health hazard model Cd, Cr, Zn and Cu. The geo accumulation Index (Igeo) found that the contamination level for Cd was moderately to strongly polluted in Karada, Jihad and Kinidi streets. Hence, it is important to measure the level of cadmium in the local environment. The relative bioaccumulation of chromium was high in Jadriyah Street (87.2%). The PCA showed two major sources of these minerals in Baghdad road dust that Cd, Zn are likely to originate from tire wear, brake wear and vehicular emissions as well as the fact that Cr and Cu originate from metal-processing industries. Assessing hazard to human health utilized measure population show suggested both non-carcinogenic and carcinogenic hazards minerals Baghdad road dust harmless to human environment.
Highlights
Industrialization and urbanization in Baghdad are major sources of air contamination constituting heavy metal content in urban dust due to human activity, such as traffic exhaust fumes, garbage, city construction, power generation plants and industrial production that are giving way to the reduction of the quality of urban environments [1]
Whole bioaccumulation metals levels in street dusts of Baghdad Mean concentrations of total and bioaccumulation of Cd, Cr, Zn and Cu from all the collection sites are presented in Table
Weighted bioaccessible Zn condensations all specimens are much decrease than general Zn condensations ranging from highest in Jadriyah Street (16.58 mg/kg) to less Karada Street (0.12 mg/kg), increasing of Bio-Zn in study area is because high anthropogenic actions like battery factories,oil refinery which are concentrated in these locations
Summary
Industrialization and urbanization in Baghdad are major sources of air contamination constituting heavy metal content in urban dust due to human activity, such as traffic exhaust fumes, garbage, city construction, power generation plants and industrial production that are giving way to the reduction of the quality of urban environments [1]. Necessarily to check heavy metal pollution/contamination heavy populated cities. Several researches in road dust concentrate on weighty Minerals contents, researchers found metals in road dust higher than those in soil, trace elements in street dust perhaps facilely absorbed by people over assimilation, inspiration and touching the skin [4]. Using bioaccumulation is accurate and more feasible to measure the health risks as heavy metals dissolve in gastrointestinal fluid and simulate Biochemistry situations in people digestive [6]
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