Abstract
In this investigation, results of 33 elements in airborne samples collected continuously over nine urban locations are discussed. Inductively coupled plasma-atomic emission spectrometry technique was used for determining concentration of metals. Quality control was established prior to analysis of real air samples. The guidelines followed are based on USEPA Compendium Method IO-3.4. Uncertainty in analysis was also established. Based on the concentration of metals in airborne particulates, we attempted to study the metal distribution characteristics in ambient air at various urban locations. Metals such as Al, Ca, Fe were comparatively at higher concentrations than the other elements under study at most of the locations. The city vehicles operate on lead-free fuels; however, concentration of lead in urban dust was observed in the concentration range of 0.33–6.24 μg/m3. Soil samples were also collected from sites close to the air sampling locations. Soil samples were also analysed for metal content. Enrichment factor was determined for elements measured at nine urban locations. The data supports interpretation of results in terms of contribution of metals in airborne particulates from anthropogenic and noncrustal origin.
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Acknowledgments
We are thankful to Kavita, Yogesh, Sandeep and all staff at Anacon labs for their enthusiastic support in carrying out this investigation.
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Garway, S.D., Bhaisare, S.R., Garway, D.G. et al. Study of quality control and metal distribution in urban airborne particulates. Accred Qual Assur 15, 111–118 (2010). https://doi.org/10.1007/s00769-009-0556-1
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DOI: https://doi.org/10.1007/s00769-009-0556-1