Long-Term Explosive Contamination in Soil: Effects on Soil Microbial Community and Bioremediation
作者： Susan K. Meyers , Shiping Deng , Nick T. Basta , William W. Clarkson , Gregory G. Wilber
DOI: 10.1080/15320380601077859
关键词:
摘要: Explosive contamination in soil is a great concern for environmental health. Following 50 years of munitions manufacturing and loading, soils from two different sites contained ≥ 6,435 mg 2,4,6-trinitrotoluene (TNT), 2,933 hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) 2,135 octahydrol-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) kg− 1 soil. Extractable nitrate-N was as high 315 ammonium-N reached 150 N Water leachates the highly contaminated showed near saturation levels TNT RDX, suggesting risk to water quality. The long-term resulted undetectable fungal populations low 180 bacterial colony forming units (CFU) g–1 In most severely soil, dehydrogenase activity microbial biomass carbon very (< 3.4 C mic kg–1 soil). diminished biological consequence because short-term (14 d) at up 5000 di...
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