Journal
AIR QUALITY ATMOSPHERE AND HEALTH
Volume 15, Issue 4, Pages 731-738Publisher
SPRINGER
DOI: 10.1007/s11869-021-01130-7
Keywords
Street dust; Heavy metals; Oxidative potential; Dithiothreitol; Acellular chemical test
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Funding
- Vice-Chancellor for Research and Technology of Kerman University of Medical Sciences [98000810]
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The study focused on investigating the oxidative potential (OP), spatial distribution, and correlations with heavy metals (HMs) in street dust in Kerman city, Iran. Results showed higher OP values in dust samples from the center and west of the city, with a strong correlation between the concentrations of As and Cr and OP values.
The current study aimed to consider oxidative potential (OP), its spatial distribution, and correlations with heavy metals (HMs) in street dust in Kerman city, Iran. The concentration of HMs in 35 street dust samples was detected by ICP-AES. The OP in samples was measured through dithiothreitol (DTT). The mean concentration of elements followed Zn > Cu > Pb > Cr > As > Cd. The OP value was found to be 7.17 +/- 2.98 nmol/min. mu g dust in the current study. A strong correlation was observed among the concentrations of As and Cr and OP values in dust samples. More values of OP were observed in the center and west of the Kerman city. According to results of the current study, it could be concluded that OP can be applied as metrics of pollution originated from different sources and human health effects. The amount of OP in the street dust in the Kerman city can be reduced through the use of clean fuels.
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