https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53573 Wed 15 May 2024 15:05:18 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42895 Tue 06 Sep 2022 14:39:21 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52585 Thu 14 Mar 2024 09:00:29 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:31331 Sat 24 Mar 2018 08:44:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27744 Pseudomonas sp. strain were also carried out. Results showed that after 1 and 25 d, HPCD at pH 7 extracted significantly more View the MathML source14C-phenanthrene (p<0.05)(p<0.05) from BC-amended soils than the other two solutions (un-buffered and pH 8), while HPCD at pH 8 extracted statistically similar (p>0.05)(p>0.05) amounts of phenanthrene compared to the un-buffered solution. At 50 d, HPCD at pH 8 generally extracted more ¹⁴C-phenanthrene from all treatments. It was proposed that higher pH promoted the dissolution of soil organic matter (SOM), leading to a greater solubility of phenanthrene in the solvent phase and enhancing the extractive capability of HPCD solutions. Although correlations between extractability and biodegradability of ¹⁴C-phenanthrene in BC-amended soils were poor, increasing pH was demonstrated a viable approach to enhancing HPCD extractive capability for the ¹⁴C-PAH from soil with BC.]]> Sat 24 Mar 2018 07:27:45 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53514 coal tar > pitch. Increases in Frap of cPAHs were observed in coal tar-treated soils after 48 d soil incubation (0.33%–1.16% for soil M, p ≥ 0.05, 6.24%–9.21% for soil G, p < 0.05) and was attributed to the continuous migration of coal tar as a non-aqueous phase liquid (NAPL) into soil pore structures. Slow desorption was dominated by source materials, whereas the extents and rates of rapid desorption (Frap and krap) were more controlled by the quantity of soil organic matter (SOM), rather than quality of SOM (as in solvent-spiked soils). The results of this study challenged the role of PAH source materials as ‘sinks’ and led to the proposed roles of coal tar and pitch and source materials alike as ‘reservoirs’ with a risk-driven perspective.]]> Fri 01 Dec 2023 10:58:45 AEDT ]]>