Evaluation of Cancer Risk of Heavy Metals in the Air of a High Traffic Urban Region and Its Source Identification
Journal Title: Journal of Human Environment and Health Promotion - Year 2017, Vol 2, Issue 2
Abstract
Background: Sampling was conducted on particles smaller than ten microns (PM10) in a high-traffic urban region once a week for two years in which fifteen heavy metals were measured. Methods: positive matrix factorization (EPA-PMF5), was used for source apportionment and characterization of the collected PM10. Assessment of cancer risk resulting from metals including arsenic, cadmium, chromium, nickel and lead was conducted in three concentration ranges of maximum, average and minimum. Results: Results for children and adults living in the region indicated that cancer risk indexes at different concentration ranges of carcinogenic metals were between 10-4 to 10-6 for adults and children. Since EPA recommendations suggest that planning should be conducted if cancer risk is in the range of 10-4 to 10-6, using PMF5 model, source characterization of pollutants was implemented by all measured heavy metals. Conclusion: It was found that 41.5% of PM10 resulted from fuel and combustion, 12% from waste dump soil of lead and zinc industries, 35.7% from suspended open soil and 11% from industrial activities. It was also found that cadmium, nickel and, chromium have higher cancer risk than other metals and, suspended open soil, industrial activities and industrial fuel and combustion are the main sources of these metals respectively.
Authors and Affiliations
Zohre Farahmandkia, Faramarz Moattar *, Farid Zayeri, Mohammad Sadegh Sekhavatjou, Nabiollah Mansouri
Keywords
Related Articles
- EP ID EP184457
- DOI -
- Views 89
- Downloads 0
Lead Uptake and Its Effects on the Quantitative Indices of C. aronia and J. polycarpus Seedlings in the Environment
Background: Removal of mineral pollutants from polluted soil is considered to be major environmental concern in the modern era. The present study aimed to investigate the capability of lead uptake and transfer in various...
Development and Validation of an Awareness Assessment Instrument of Safe Work for Laboratory Staff
Background: Chemistry laboratories of universities are dangerous. However, there is no appropriate instrument to assess staffs' awareness. The present study aims at developing a standardized instrument for awareness asse...
Batch Removal of Acid Blue 292dye by Biosorption onto Lemna minor: Equilibrium and Kinetic Studies
Background: Recently, there has been a great concern about the consumption of dyes because of their toxicity, mutagenicity, carcinogenicity, and persistence in the aquatic environment. Therefore, the aim of this study wa...
Effect of Applying Sunflower Residues as a Green Manure on Increasing Zn Concentration of Two Iranian Wheat Cultivars in a Pb and Cd Polluted Soil
Background: This research was investigated to evaluate effect of applying sunflower residues as a green manure on increasing zinc (Zn) concentration of two Iranian wheat cultivars in a Pb and cadmium (Cd) polluted soil....
Application of Live, Dead, and Dried Biomasses of Aspergillus Versicolor for Cadmium Biotreatment
Background: Various industries produce and discharge wastes containing different heavy metals into the environment. Apart from using living biomass, dead and dried biomasses have been introduced as a new field of biotrea...