https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42755 35%). Good correlations were obtained (R values 0.49–0.93, all with p value < 0.05). Higher R values were found for wetter conditions (above ~20%). The wetness indices were also found to relate to pipe-wall maximum pitting corrosion rates (mm/yr) when soil classifications were taken into account, with separate trends for clay, silty clay, sandy clay and sand. Some outliers were detected. These were all associated with pipes for which there is evidence of poor workmanship or quality during installation. In total, 25 catchments from inner city to coastal and lakeside suburbs as well as semi-rural regions were assessed. Results show the potential for terrain indices to indicate relative soil wetness in urban areas and thus potential for pipe failure. This is the first study of its kind. This also may assist water authorities to improve life prediction, management and replacement schedules for water supply pipelines and other underground assets.]]> Wed 28 Sep 2022 14:04:18 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42991 100 countries, and their distribution is extensive and widespread in arid and semi-arid regions of the world. In order to meet the challenges of global food security, it is imperative to bring barren salt-affected soils under cultivation. Various inorganic and organic amendments are used to reclaim the salt-affected lands. The selection of a sustainable ameliorant is largely determined by the site-specific geographical and soil physicochemical parameters. Recently, biochar (solid carbonaceous residue, produced under oxygen-free or oxygen-limited conditions at temperatures ranging from 300 to 1000 ^OC) has attracted considerable attention as a soil amendment. An emerging pool of knowledge shows that biochar addition is effective in improving physical, chemical and biological properties of salt-affected soils. However, some studies have also found an increase in soil salinity and sodicity with biochar application at high rates. Further, the high cost associated with production of biochar and high application rates remains a significant challenge to its widespread use in areas affected by salinity and sodicity. Moreover, there is relatively limited information on the long-term behavior of salt-affected soils subjected to biochar applications. The main objective of the present paper was to review, analyze and discuss the recent studies investigating a role of biochar in improving soil properties and plant growth in salt-affected soils. This review emphasizes that using biochar as an organic amendment for sustainable and profitable use of salt-affected soils would not be practicable as long as low-cost methods for the production of biochar are not devised.]]> Wed 28 Feb 2024 15:22:05 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36282 Wed 28 Feb 2024 15:20:41 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47549 Wed 28 Feb 2024 15:20:35 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54320 Wed 28 Feb 2024 15:14:29 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36533 20 cm, SOC became increasingly homogenous for both datasets with little difference observed. The results suggest that the influence of the exclusion area on SOC accumulation at the site was only within the top 10-20 cm of the soil profile. The results highlight the importance of soil depth in quantifying SOC within the soil profile and SOC sequestration potential for sites at depth.]]> Wed 28 Feb 2024 14:57:49 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33383 Wed 28 Feb 2024 14:57:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41745 Wed 28 Feb 2024 14:56:53 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47852 Wed 28 Feb 2024 14:55:59 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42653 Wed 28 Feb 2024 14:54:03 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46301 −1 lamb meat, and 0.28 pg g(⁻¹-2.75 ng g⁻¹ bovine meat), heavy metals (0.5–33.0 mg kg⁻¹ lettuce), organochlorine pesticides (11–199 μg g⁻¹ carrots), cyclodienes, hexachlorocyclohexanes, hexabromocyclododecane (2–3 times higher than in conventionally produced porcine meat), hexachlorobenzene (1.38–14.49 ng g⁻¹ fat in milk), and non-brominated flame retardants (1.3–3.2 times higher than in conventional produce of greenhouse-grown tomato and cucumber). Moreover, some pollutants like per- and polyfluoroalkyl substances with a longer half-life (1.50–9.10 yrs) are reported to occur in several organic products. In fact, several legacy persistent organic pollutants are known for their significant trophic magnification in an urban terrestrial ecosystem. In addition, many plant functionalities are adversely affected in organic farming. Therefore, the long-term usage of organic products containing such pollutants poses a significant threat to human health. The major limitation in organic livestock production is the severe shortage of organic feed. Several variable standards and technical regulations set by the government and private agencies are the major obstacles in the global marketing of organic products. The present review critically addresses the impact of organic farming on hidden risks due to the use of composts as the amendment resources that enhance the phytoaccumulation and trophic transfer of pollutants, the functional diversity of the ecosystems, and poor harmonization among the policies and regulations in different countries for organic farming. The future directions of research have been suggested to mitigate unintended flows of pollutants into the organic products.]]> Wed 28 Feb 2024 14:51:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45995 P > S > C. While in the black soil, it suggested that there is increasing microbial demand for only N and S. In the warmer months (May to Sep.), the microbial nutrient demands in the two soils were opposite to the colder months. The results suggested differential changes in microbial nutrient limitation with warming, which has significant implications for the carbon stocks management in farmlands under the changing global climate.]]> Wed 28 Feb 2024 14:47:23 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54991 Wed 27 Mar 2024 16:32:43 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36405 Wed 24 May 2023 09:45:52 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45426 2-Cd was negatively related to soil available Si (p < 0.05). The synergistic effect of BR and Si induced liming effect and co-precipitation of Cd with Si compounds during the aging process of biochar. Thus, we suggest that an alkaline silicon supplementation is used as an amendment to BR, which could be used as a strategic approach for tackling Cd contamination in South China rice paddies.]]> Wed 22 Mar 2023 19:01:08 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48367 Wed 15 Mar 2023 12:44:36 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33382 Wed 15 Mar 2023 10:18:11 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47136 4⁻ and .OH in DFUS/PS is ~1.6 times and ~2.5 times as much, respectively, as in high frequency US/PS. The relative contributions to the synergistic TPH degradation in the DFUS/PS system are: SO.₄⁻ (PS activation via the heat induced by US) > pyrolysis inside the bubbles (hydrophobicity of TPH) > SO.₄⁻ (PS activation via US cavitation) > .OH. Finally, the hypothesis is confirmed via the evaluation of the degradation kinetics, which shows that the combined process of DFUS/PS is not a simple addition of the US and PS, but provides a highly effective process of synergistic degradation.]]> Wed 14 Dec 2022 15:20:32 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34788 Wed 13 Mar 2024 09:37:15 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44361 Wed 12 Oct 2022 09:14:23 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50272 Wed 12 Jul 2023 14:11:21 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50259 Wed 12 Jul 2023 10:41:19 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53693 Wed 10 Jan 2024 10:41:41 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40633 Wed 10 Aug 2022 15:39:15 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40042 Wed 07 Feb 2024 17:04:38 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46620 2 = 0.75–0.81). Socioeconomic (R² = 0.44–0.66) and development (R² = 27–0.44) factors have weak to moderate effects on the ESs. Furthermore, the joint effects of the driving factors are much higher than their individual effects. Among the six spatial regression models, Geographical Weighted Regression (GWR) performs the most accurately and explains the maximum model variances. The proposed hybrid valuation method aggregates biophysical and economic estimates of ESs and addresses methodological biases existing in the valuation process. The presented framework can be generalized and applied to other ecosystems at different scales. The outcome of this study could be a reference for decision-makers, planners, land administrators in formulating a suitable action plan and adopting relevant management practices to improve the overall socio-ecological status of the region.]]> Wed 07 Feb 2024 16:52:46 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39503 −1) and lead (Pb = 736.2 mg kg⁻¹). Soil properties, microbial activities, and the geochemical fractions and potential availabilities of As and Pb were determined in the non-treated (control) and biochar-treated soil. Modification of PB (pH = 10.6) and GWB (pH = 9.3) with Fe caused a decrease in their pH to 4.4 and 3.4, respectively. The application of PB and GWB significantly increased soil pH, while Fe-PB and Fe-GWB decreased soil pH, as compared to the control. Application of Fe-GWB and Fe-PB decreased the NH₄H₂PO₄-extractable As by 32.8 and 35.9%, which was more effective than addition of GWB and PB. However, PB and GWB were more effective than Fe-PB and Fe-GWB in Pb immobilization. Compared to the control, the DTPA-extractable Pb decreased by 20.6 and 21.7%, respectively, following PB and GWB application. Both biochars, particularly PB significantly increased the 16S rRNA bacterial gene copy numbers, indicating that biochar amendments enhanced the bacterial abundance, implying an alleviation of As and Pb bio-toxicity to soil bacteria. The results demonstrated that pristine pig carcass and green waste biochars were more effective in immobilizing Pb, while their Fe-engineered biochars were more effective in As immobilization in co-contaminated soils.]]> Wed 07 Feb 2024 16:39:44 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52210 2 (amorphous) from ICP standard solution, but a mixture of Be(OH)₂ (alpha), Be(OH)₂ (beta) and ternary Na/S-Be (ΙΙ)-OH(s) solid phase were formed from BeSO₄ solutions. The precipitation of Be started at relatively lower pH at higher concentrations than at the lower Be concentration as indicated by both laboratory data and simulation. Across the pH range, the Be sorption curve was divided into three phases, these being pH 3-6, pH 6-10, and pH > 10, within which sorption of Be with soil was 9-97%, 90-97%, and 66-90%, respectively. Beryllium solubility was limited at pH > 7, but a sorption study with soil showed chemisorption under both acidic and alkaline pH (pH 5.5 and 8) conditions, which was confirmed by FTIR and XPS analysis. At pH 5.5 (specifically relevant to the study site), sorption of Be was 72-95%, in which 77% and 46% Be was respectively sorbed by separated fulvic and humic acid fractions. The irreversible chemisorption mechanism was controlled by SOM at higher pH, and by metal oxyhydroxides at lower pH. Both organic and inorganic components synergistically influence the specific chemisorption of Be at the intermediate pH 5.5 of field soil.]]> Wed 07 Feb 2024 14:46:21 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51885 Wed 07 Feb 2024 14:25:54 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44791 Wed 07 Feb 2024 14:24:40 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54634 Wed 06 Mar 2024 10:59:51 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43945 Wed 05 Oct 2022 12:58:22 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52928 Wed 01 Nov 2023 09:37:25 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47612 Tue 24 Jan 2023 11:35:47 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53312 Tue 21 Nov 2023 12:36:31 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33381 Tue 21 Mar 2023 15:45:24 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47398 Tue 17 Jan 2023 11:21:30 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41991 Tue 16 Aug 2022 16:02:20 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46333 Daphnia carinata) using a battery of comprehensive toxicity tests, including a 48 h acute and a 21-day chronic assays. The survival, growth, and reproduction of D. carinata were monitored over a 21-day life cycle. PFOS exhibited higher toxicity than PFOA. The 48 h LC₅₀ values (confidence interval) based on acute toxicity for PFOA and PFOS were 78.2 (54.9–105) mg L⁻¹ and 8.8 (6.4–11.6) mg L⁻¹, respectively. Chronic exposure to PFOS for 21 days displayed mortality and reproductive defects in D. carinata at a concentration as low as 0.001 mg L⁻¹. Genotoxicity assessment using comet assay revealed that exposure for 96 h to PFOS at 1 and 10.0 mg L⁻¹ significantly damaged the organism's genetic makeup. The results of this study have great implications for risk assessment of PFOS and PFOA in aquatic ecosystems, given the potential of PFOS to pose a risk to Daphnia even at lower concentrations (1 μg L⁻¹).]]> Tue 15 Nov 2022 12:49:03 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24008 -1 and which now showed complete removal of this concentration of diesel within 30days was compared to that of a freshly inoculated new anode MFC (showing 83.4% removal of diesel) with a simultaneous power generation of 90.81mW/m² and 15.04mW/m² respectively. The behaviour of pre-cultured anodes at a higher concentration of PH (8000mgl^-1) was also investigated. Scanning electron microscopy observation revealed a thick biofilm covering the pre-cultured anodic electrode but not the anode from the freshly inoculated MFC. High resolution imaging showed the presence of thin 60nm diametre pilus-like projections emanating from the cells. Anodic microbial community profiling confirmed that the selection for diesel degrading exoelectrogenic bacteria had occurred. Identification of a biodegradative gene (alkB) provided strong evidence of the catabolic pathway used for diesel degradation in the DMFCs.]]> Tue 14 Nov 2023 13:55:11 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47998 Tue 14 Feb 2023 16:22:00 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47997 Tue 14 Feb 2023 16:15:07 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43106 Tue 13 Sep 2022 12:54:31 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54236 Tue 13 Feb 2024 13:18:30 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47043 Tue 13 Dec 2022 14:22:30 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47038 Tue 13 Dec 2022 14:22:22 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47011 Tue 13 Dec 2022 11:41:23 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39454 SWARA-BBO, GALDIT_SI-BBO, GALDIT_SWARA-DE and GALDIT_SI-DE models, respectively. The results from the GALDIT_SI-DE model outperformed all other models at improving the accuracy of the vulnerability assessment. Moreover, the statistical-metaheuristic method yielded more accurate results than SWARA-metaheuristic hybrid models. The vulnerability map of the studied region indicates that the northwestern and western areas are very highly vulnerable. According to GALDIT_SI-DE model, 42%, 17%, 18% and 22% of the aquifer areas respectively have a low, medium, high and very high vulnerability to seawater intrusion. The research findings could be applied by regional authorities to manage and protect groundwater resources.]]> Tue 09 Aug 2022 14:28:09 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:50669 Tue 01 Aug 2023 14:30:56 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53498 Thu 30 Nov 2023 15:51:05 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37211 a]P) in soils. In this study, we investigated the influence of pH, EC and ageing on the extractability of B[a]P in two contracting soils (varied largely in soil texture, clay mineralogy and organic carbon content) over 4 months. Dilute sodium hydroxide (0.2 mol L^-1) and sodium chloride (0.1 mol L^-1) solutions were used to adjust soil pH and EC either separately or simultaneously. Extractability of B[a]P in these soils was monitored using a mild solvent extraction using butanol (BuOH, end-over-end shake over 24h), and an exhaustive mix-solvent extraction using dichloromethane/acetone (DCM/Ace, v:v = 1:1) facilitated by sonication and a subsequent NaOH saponification method following the DCM/Ace extraction. Results showed that increased pH and/or EC significantly increased the B[a]P extractability in the sandy soil (GIA). Variance analysis of contribution of pH and/or EC modification and ageing time on changes in B[a]P extractability indicated that in GIA > 55% and over 25% of the changes in B[a]P extractability was attributed to increased pH&EC and pH only respectively. While ageing resulted in >85% of the change in B[a]P extractability in the clayey soil (BDA), following by increased pH&EC (contribution < 15%). Large amount of non-extractable residue (NER) were formed over the ageing period, up to 95% and 79% in GIA/BDA and its modified soils, respectively. Significant correlations were observed between B[a]P BuOH extractability and the exhaustive sequential extraction using DCM/Ace followed by NaOH saponification for all soils (p < 0.001). With slopes of the correlations close to 1, our results indicated that the simple mild solvent BuOH extraction was equivalent to the complex sequential DCM/Ace and NaOH saponification extraction in these soils.]]> Thu 30 Mar 2023 09:35:27 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47273 Thu 23 Mar 2023 13:51:52 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:31018 Thu 20 Oct 2022 09:42:46 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47417 Thu 19 Jan 2023 12:49:24 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35116 Thu 11 May 2023 10:20:13 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53754 Thu 11 Jan 2024 12:21:40 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47935 Thu 09 Feb 2023 15:44:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42485 p = .006), whereas no significant differences were found between the means of the two groups using the standard L/N ratio (p = .063). The modified L/N ratios also showed a statistically significant difference between the means of the bores impacted by municipal waste versus those impacted by non-putrescible waste (p = .003), indicating they are a much more sensitive indicator of both the existence and type of landfill leachate impact on groundwater than previously reported. This new index may prove particularly useful in complex urban areas where multiple potential contamination sources exist, and land use histories are either unknown or complicated. Capsule: Conventional methods for leachate detection in groundwater surrounding legacy landfills have been analysed and further developed via the inclusion of perfluoroalkyl acids, to better understand contaminant sources, fate and transport.]]> Thu 08 Feb 2024 10:42:49 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47324 500 km2) catchment scales using field-sampled SOC data and remote sensed vegetation indices located in eastern Australia (Krui River catchment - 562 km2; Merriwa River catchment – 808 km2) on grazing land-use basalt soil. The SOC data obtained was compared to digital elevation model (DEM) derived elevation and insolation data, as well as Normalised Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI) values corresponding to each sample site. These indices were obtained from the MODIS sensor (Terra/Aqua) and Landsat series satellites. Vegetation Indices (VI) captured immediately prior to sampling demonstrated a poor correlation with SOC. The use of multiple, aggregated, prior VI data sets provided a good match with SOC. The strongest match occurred for Landsat 8 EVI, indicating that VIs with higher spatial and spectral resolution, which can account for atmospheric interference, have the potential to produce more accurate SOC mapping (Krui samples in 2006, R2 = 0.31, P < 0.01; Krui sampled in 2014, R2 = 0.41, P < 0.01; Merriwa samples in 2015, R2 = 0.37, P < 0.01). A sensitivity test for both remote sensing platforms demonstrated that the findings were robust. The results demonstrate that VIs are a reliable surrogate for historical vegetation growth in pasture dominated landscapes and therefore soil carbon inputs allowing for mapping of SOC across large catchment scales. Both Landsat and MODIS produced similar results and demonstrate that SOC can be reliably predicted at the large catchment scale and for different catchments in this environment with RMSE range of 0.79 to 1.06. The method and data can be applied globally and provides a new method for environmental assessment.]]> Thu 02 May 2024 15:03:08 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48135 Thu 02 Mar 2023 16:16:31 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42716 Thu 01 Sep 2022 11:33:23 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45518 μSM) have shown promising results over arid and semi-arid landscapes. However, the linearity of these algorithms is affected by factors such as vegetation, soil texture and meteorology in a complex manner. This study tested a (i) Regression Tree (RT), an Artificial Neural Network (ANN), and a Gaussian Process Regression (GPR) model based on the soil thermal inertia theory over a semi-arid agricultural landscape in Australia, given the ability of machine learning algorithms to capture complex, non-linear relationships between predictors and responses. Downscaled soil moisture from the RT, ANN and GPR models showed root mean square errors (RMSEs) of 0.03, 0.09 and 0.07 cm³/cm³ compared to airborne retrievals and unbiased RMSEs (ubRMSEs) of 0.07, 0.08 and 0.05 cm³/cm³ compared to in-situ observations, respectively. The study showed encouraging results to integrate machine learning techniques in estimating near-surface soil moisture at a high spatial resolution.]]> Mon 31 Oct 2022 14:02:59 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38393 Mon 29 Jan 2024 18:44:27 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34743 2H₃O₂)₂), Pb₃(PO₄)₂, PbSiO₃, and PbCO₃. On phytoliths in CFB500, Pb²⁺ ions were mainly sorbed on the sites of silicate with a structure similar to PbSiO₃. The contribution of binding sites for Pb²⁺ sorption was ascribed to the outer-wall of carbon skeleton of CFB500, which was stronger than that provided by the mineral oxide aggregate and phytoliths on CFB500. Organic carbon functional groups, inorganic carbonates, silicates and phosphates on CFB500 mostly dominated the sorption sites for Pb²⁺. Our results suggest that CFB500 was a promising material for the remediation of Pb-contaminated aqueous environments (e.g., wastewater).]]> Mon 29 Jan 2024 17:59:04 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38448 *10⁻⁷ (industrial soils) to 2.3^*10⁻⁶ (residential soils), indicating negligible cancer risks. This is the first known study on the occurrence and concentrations of polar and non-polar PAHs in any Australian city, and the results may serve a baseline purpose for improved risk assessment of contaminated sites.]]> Mon 29 Jan 2024 17:56:07 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48453 Mon 29 Jan 2024 17:52:57 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38482 Mon 29 Apr 2024 15:04:00 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53429 Mon 27 Nov 2023 11:40:44 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52714 90 % removal) for diuron even at extremely high initial pollutant concentrations (240 μg L−1), demonstrating its capacity to handle varying contaminant loads in stormwater. Energy consumption analysis revealed that flow rate as the primary factor influenced the specific energy consumption rate. Higher flow rate (e.g., 610 mL min−1) were preferable in flow reactor due to its well-balanced performance between removal and energy consumption. These findings confirm that the PECO flow system offers an efficient and promising approach for stormwater treatment applications.]]> Mon 23 Oct 2023 16:12:30 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47560 Mon 23 Jan 2023 13:04:27 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47484 Mon 23 Jan 2023 11:48:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51791 Mon 18 Sep 2023 15:18:56 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51792 Mon 18 Sep 2023 15:18:10 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47970 Mon 13 Feb 2023 15:59:12 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50223 Mon 10 Jul 2023 10:44:41 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50219 Mon 10 Jul 2023 09:56:09 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42817 Mon 05 Sep 2022 11:14:24 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33434 Mon 03 Apr 2023 16:46:48 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35153 Mon 03 Apr 2023 16:28:20 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50577 Fri 28 Jul 2023 13:05:48 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42580 Fri 26 Aug 2022 08:13:57 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51936 Fri 22 Sep 2023 12:38:22 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42254 Fri 19 Aug 2022 13:48:24 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53182 100 years) for two sub-catchments in the lower MDB, confirm that flow persistence can be non-stationary through time, with some ‘perennial’ systems exhibiting sustained periods of cease to flow (i.e. becoming non-perennial) during prolonged droughts. This study demonstrates that due consideration is required in developing baseline classification of perennial freshwater systems for assessing future changes and measuring adaptive capacity.]]> Fri 17 Nov 2023 11:58:46 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47221 Fri 16 Dec 2022 10:16:32 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54826 Fri 15 Mar 2024 11:46:13 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44521 Sporobolus virginicus, across three urbanised estuaries in NSW Australia. Lake Macquarie was the most contaminated estuary, while Sydney Olympic Park, Port Jackson exhibited intermediate metal(loid) loadings and Hunter Wetlands exhibited the lowest loadings among estuaries. Essential metals (Zn and Cu) were more mobile, with sediment:root bioconcentration factors (BCFs) greater than unity and translocation among plant organs greater than, or equal to, unity. Other metal(loid)s were less mobile, with BCFs equal to unity and translocation factors among organs much reduced. Despite these barriers to translocation, all metal(loid)s were accumulated to roots with dose, and further accumulative relationships between metal(loid)s in roots and culms, and culms and leaves, were evidenced (with the exception of Cu). Along with sediment metal(loid)s, increases in sediment pH predicted Cu uptake in roots and increases in soil organic matter predicted Se uptake in roots. Although significant positive linear relationships were observed between sediment metal(loid)s and plant organ metal(loid)s(withholding Cu), the variance explained was low to intermediate for most metal(loid)s suggesting employing S. virginicus as an accumulative bioindicator would be impractical.]]> Fri 14 Oct 2022 11:18:58 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47369 Fri 13 Jan 2023 15:04:30 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47301 Fri 13 Jan 2023 10:52:36 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47291 Fri 13 Jan 2023 10:38:37 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41757 Fri 12 Aug 2022 11:42:23 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46093 2000) across the eastern Himalayan hilly region, which is mostly covered by dense forest and thereby highly susceptible to wildfires. Scattered patches of intense forest fires were also detected in the lower Himalayan and central Indian states. The spatial correlation between the burn indices and NPP were mainly negative (−0.01 to −0.89) for the fire-prone states as compared to the other neighbouring regions. Additionally, the linear approximation between the burn indices and NPP showed a positive relation (0.01 to 0.63), suggesting a moderate to high impact of the forest fires on the ecosystem production and terrestrial carbon emission. The present approach has the potential to quantify the loss of ecosystem productivity due to forest fires.]]> Fri 11 Nov 2022 10:52:37 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42990 Fri 09 Sep 2022 13:56:20 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51538 Fri 08 Sep 2023 14:16:26 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44117 - 1 di-(2-ethylhexyl) phthalate (DEHP) amended with biochar derived from dead pigs, bamboo, and composted sheep manure. The soils were thereafter incubated for 112 days at 25^oC and periodically sampled for monitoring DEHP concentrations. Degradation of DEHP was described by a logistic model. Results showed that the initial degradation rates were slow, but accelerated after 14 days of incubation. The DEHP degradation rates were higher in the HOC soils than in the LOC soils over the incubation period. The half-lives of DEHP were shorter in the LOC soils treated with pig biochar, and bamboo/pig biochar plus compost than in the untreated soil. However, there was no significant difference in the half-lives of DEHP in the HOC control and treated soils. The differential effects of soil amendments on DEHP degradation between LOC and HOC soils could be explained by the properties of the organic amendments, soil pH and the organic carbon contents of the soils.]]> Fri 07 Oct 2022 14:19:32 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52967 liver > gill > muscle > brain. The uptake and depuration of PSNs in zebrafish both followed pseudo-first-order kinetics. It was revealed that the bioaccumulation was concentration, tissue and time dependent. When the PSNs concentration is low, the steady state might take longer time (or not occur) than that of a high concentration. After 16 days of depuration, there were still some PSNs present in the tissues particularly in the brain, where it might take 70 days or more to remove 75 % of PSNs. Overall, this work offers important knowledge on the bioaccumulation of PSNs, which may be useful for future studies into the health hazards of PSNs in aquatic environments.]]> Fri 03 Nov 2023 15:30:38 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52970 Fri 03 Nov 2023 15:30:26 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46847 10 weeks (SMD = −0.33, 95% CI −0.54 to −0.12) showed more significant effect than an exposure time of ≤10 weeks (SMD = −0.22, 95% CI −0.43 to −0.02). Moreover, TBBPA exposure exhibited significant negative effects on sperm count (SMD = −0.49, 95% CI −0.82 to −0.17) while also reduced the content of triiodothyronine (T3), thyroxine (T4), and thyroid stimulating hormone (TSH) hormones. To summarize, our meta-analysis indicated that TBBPA had a toxicity effect to the reproductive system of male rodents.]]> Fri 02 Dec 2022 11:38:00 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46855 Fri 02 Dec 2022 09:27:23 AEDT ]]>