subsurface soil investigations isotope ratio mass spectrometry stable carbon isotopes toluene soil biogeochemistry soil isotopes iron mineral hydroxides iron mineral oxides iron reduction environmental engineering btex dissimilatory iron reduction carbon isotopes environment history experience work career ciivl engineering soil remediation environmental science flood science coastal engineering water resource engineering civil engineering management assessment flood risk flooding coastal statistics research regression analysis predictive analytics predctive analytics mixed effects models data analytics data geochemistry hydrocarbons petroleum natural attenuation bioremediation carbon gas chromatography ios engineering mesocosm experiments mesocosms anaerobic biodegradation
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