Monitoring and assessment of toxic metals in Gulf War oil spill contaminated soil using laser-induced breakdown spectroscopy |
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| Authors: | T Hussain M A Gondal |
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| Institution: | (1) Institute of Environmental Science & Engineering, National University of Sciences and Technology (NUST), Tamiz Ud din Road, Rawalpindi, Pakistan;(2) Laser Research Laboratory, Physics Department King Fahd University of Petroleum & Minerals, Box 5047, Dhahran, 31261, Saudi Arabia |
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| Abstract: | Laser-induced breakdown spectroscopy (LIBS) was applied for the detection of toxic metals in oil spill contaminated soil (OSCS).
The OSCS samples were collected from Khursania Saudi Arabia along the coast of Persian Gulf exposed to oil spills in 1991
Gulf war. Environmentally important elements like Aluminum Magnesium, Calcium, Chromium, Titanium, Strontium, Iron, Barium,
Sodium, potassium, Zirconium and Vanadium from the contaminated soil have been detected. Optimal experimental conditions for
analysis were investigated. The LIBS system was calibrated using standard samples containing these trace elements. The results
obtained using Laser-Induced Breakdown Spectroscopy (LIBS) were compared with the results obtained using Inductively Coupled
Plasma Emission Spectroscopy (ICP). The concentrations of some elements (Ba and Cr) were found higher than permissible safe
limits. Health risks associated with exposure to such toxic elements are also discussed. |
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| Keywords: | LIBS Multi-elemental analysis Oil spill contaminated soil Environmental effects Laser spectroscopy and its applications Health risk assessment Trace metals Gulf War 1991 oil spill disaster |
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