Variations in the bioavailability of XXXX in industrial and agricultural soils after bioremediation.

@entity2556 @entity19213 @entity2555
UNASSIGNED: The aim of this study was to demonstrate the variations in bioavailability remaining in industrial and agricultural soils contaminated by @entity2555 ( @entity2556 ) after bioremediation. After inoculation of Mycobacterium sp. and Mucor sp., @entity2556 biodegradation was tested on a manufactured gas plant (MGP) soil and an agricultural soil. @entity2556 bioavailability was assessed before and after biodegradation using solid-phase extraction (Tenax-TA extraction) and solid-phase micro-extraction (SPME) to represent bioaccessibility and chemical activity of @entity2556 , respectively. Only 3- and 4-ring @entity2556 were noticeably biodegradable in the MGP soil. @entity2556 biodegradation in the agricultural soil was different from that in the MGP soil. The rapidly desorbing fractions ( @entity19213 ) extracted by Tenax-TA and the freely dissolved concentrations of 3- and 4-ring @entity2556 determined by SPME from the MGP soil decreased after 30 days biodegradation; those values of the 5- and 6-ring @entity2556 changed to a lesser degree. For the agricultural soil, the @entity19213 values of the 3- and 4-ring @entity2556 also decreased after the biodegradation experiment. The Tenax-TA extraction and the SPME have the potential to assess variations in the bioavailability of @entity2556 and the degree of biodegradation in contaminated MGP soils. In addition, Tenax-TA extraction is more sensitive than SPME when used in the agricultural soil.
