Phosphorus and trace metals in serpentine-affected soils of the Sumas Basin, British Columbia

BaugéS., M. Y.; LavkulichL., M.; SchreierH., E.

doi:10.4141/cjss2012-138

Cited by 6 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 4 clearly shows that concentrations of these metals and several others (cobalt, iron, manganese) are elevated in the DUs that have higher asbestos concentrations. Similarly, the calcium to magnesium ratio (Ca:Mg) is between 0.01 and 0.03, indicating the presence of serpentinite soils [ 9 , 27 , 28 , 29 ]. The mix of mineral species occurring in the Sumas/Swift Creek sediments are variable and have some very similar or almost the same chemistry as chrysotile, but differ in crystal structure and morphology.…”

Section: Discussionmentioning

confidence: 99%

Comparison of soil sampling and analytical methods for asbestos at the Sumas Mountain Asbestos Site—Working towards a toolbox for better assessment

et al. 2017

View full text Add to dashboard Cite

Established soil sampling methods for asbestos are inadequate to support risk assessment and risk-based decision making at Superfund sites due to difficulties in detecting asbestos at low concentrations and difficulty in extrapolating soil concentrations to air concentrations. Environmental Protection Agency (EPA)’s Office of Land and Emergency Management (OLEM) currently recommends the rigorous process of Activity Based Sampling (ABS) to characterize site exposures. The purpose of this study was to compare three soil analytical methods and two soil sampling methods to determine whether one method, or combination of methods, would yield more reliable soil asbestos data than other methods. Samples were collected using both traditional discrete (“grab”) samples and incremental sampling methodology (ISM). Analyses were conducted using polarized light microscopy (PLM), transmission electron microscopy (TEM) methods or a combination of these two methods. Data show that the fluidized bed asbestos segregator (FBAS) followed by TEM analysis could detect asbestos at locations that were not detected using other analytical methods; however, this method exhibited high relative standard deviations, indicating the results may be more variable than other soil asbestos methods. The comparison of samples collected using ISM versus discrete techniques for asbestos resulted in no clear conclusions regarding preferred sampling method. However, analytical results for metals clearly showed that measured concentrations in ISM samples were less variable than discrete samples.

show abstract

Section: Discussionmentioning

confidence: 99%

Comparison of soil sampling and analytical methods for asbestos at the Sumas Mountain Asbestos Site—Working towards a toolbox for better assessment

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Serpentine soils, derived from the weathering of ultramafic rocks, may release elevated concentrations of heavy metals such as nickel (Ni), chromium (Cr), manganese (Mn), and cobalt (Co) into the environment (Rajapaksha et al 2012;Vithanage et al 2014a). In parts of northwestern Spain (Fernández et al 1999), Canada (Baugé et al 2013), Philippines (Susaya et al 2010), and Japan (Kayama et al 2002), where serpentine-associated soils are often subjected to agriculture and forestry, soils are intensively managed to make them amenable for plant growth.…”

Section: Introductionmentioning

confidence: 99%

Immobilization and phytotoxicity reduction of heavy metals in serpentine soil using biochar

et al. 2014

View full text Add to dashboard Cite

Purpose Serpentine soils derived from ultramafic rocks release elevated concentrations of toxic heavy metals into the environment. Hence, crop plants cultivated in or adjacent to serpentine soil may experience reduced growth due to phytotoxicity as well as accumulate toxic heavy metals in edible tissues. We investigated the potential of biochar (BC), a waste byproduct of bioenergy industry in Sri Lanka, as a soil amendment to immobilize Ni, Cr, and Mn in serpentine soil and minimize their phytotoxicity. Materials and methods The BC used in this study was a waste byproduct obtained from a Dendro bioenergy industry in Sri Lanka. This BC was produced by pyrolyzing Gliricidia sepium biomass at 900°C in a closed reactor. A pot experiment was conducted using tomato plants (Lycopersicon esculentum L.) by adding 1, 2.5, and 5 % (w/w) BC applications to evaluate the bioavailability and uptake of metals in serpentine soil. Sequential extractions were utilized to evaluate the effects of BC on bioavailable concentrations of Ni, Cr, and Mn as well as different metal fractionations in BCamended and BC-unamended soil. Postharvest soil in each pot was subjected to a microbial analysis to evaluate the total bacterial and fungal count in BC-amended and BCunamended serpentine soil. Results and discussion Tomato plants grown in 5 % BCamended soil showed approximately 40-fold higher biomass than that of BC-unamended soil, whereas highly favorable microbial growth was observed in the 2.5 % BC-amended soil. Bioaccumulation of Cr, Ni, and Mn decreased by 93-97 % in tomato plants grown in 5 % BC-amended soil compared to the BC-unamended soil. Sequentially extracted metals in the exchangeable fraction revealed that the bioavailabile concentrations of Cr, Ni, and Mn decreased by 99, 61, and 42 %, respectively, in the 5 % BC-amended soil. Conclusions Results suggested that the addition of BC to serpentine soil as a soil amendment immobilizes Cr, Ni, and Mn in serpentine soil and reduces metal-induced toxicities in tomato plants.

show abstract

“…Ranau Valley in Malaysia was reported to have Mn (43,063.8 mg kg −1 ), Cr (7332.2 mg kg −1 ), Ni (6322.3 mg kg −1 ), and Co (1004.7 mg kg −1 ) in paddy soil due to erosion, transport, and sedimentation (Aziz et al 2015). Similarly, the serpentine sediment deposition in agricultural areas located in floodplains of Whatcom County, Washington, USA, had resulted from a natural landslide associated with headwater areas of the Swift Creek tributary (Baugé et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Influence of soil water content and soil amendments on trace metal release and seedling growth in serpentine soil

et al. 2019

View full text Add to dashboard Cite

Purpose This study was conducted to evaluate the synergistic effects of organic amendments and soil water status on trace metal release from serpentine soil. Materials and methods Two organic amendments, dendro-biochar (BC) and municipal solid waste compost (CM), were added to serpentine soil at four different ratios, specifically 2.5:0.0, 2.5:1.0, 2.5:2.5, and 2.5:5.0% (w/w). Along with the control (with no organic amendments), each soil treatment was incubated separately under saturated point (SP) and field capacity (FC) water content for 10 days. Subsamples were obtained from each treatment to analyze the bioavailable trace metal concentration and related edaphic parameters, namely total organic carbon (TOC), nitrate (NO 3 −), phosphate (PO 4 3−), and cation exchange capacity (CEC). Then, the soil solution was eluded from each treatment and incubated for 10 days under permanent wilting point (PW). Furthermore, a seed germination test was performed under the different treatments. Results and discussion Significant reductions (p < 0.05) in bioavailable concentration of all four trace metals were observed in all the amendment ratios under all water status treatments (SP, FC, SP-PW, and FC-PW), compared with the control. Furthermore, FC-PW with the highest amendment ratio (2.5% BC:5.0% CM) reduced Ni by 67.6%; FC-PW with 2.5% BC + 2.5% CM immobilized Mn and Co by 92.1 and 96.9%, respectively, and SP water status with all four amendment ratios immobilized 100% of bioavailable Cr. Maximum amendment ratio under all four water status enhanced %TOC and significantly increased PO 4 3− concentration in SP-PW. However, FC showed comparatively high NO 3 − concentration than other treatments. Germination index (GI) for mung beans and tomato did not show a significant difference in response to amendment ratios or soil water status; however, SP treatment expressed significantly high seedling vigor (SVI) for mung beans. Conclusions Treatments of BC and CM effectively immobilize the bioavailable fraction of trace metals in serpentine soils. Increasing amendment ratio increases the %TOC regardless of the soil water status, whereas SP-PW is favorable for the availability of PO 4 3− , and FC is favorable for availability of NO 3 −. The GI for mung beans and tomato seed was not influenced by the soil water status nor by the amendment ratios. However, the SVI of mung bean seedlings was controlled by the soil water status.

show abstract

Phosphorus and trace metals in serpentine-affected soils of the Sumas Basin, British Columbia

Cited by 6 publications

References 20 publications

Comparison of soil sampling and analytical methods for asbestos at the Sumas Mountain Asbestos Site—Working towards a toolbox for better assessment

Comparison of soil sampling and analytical methods for asbestos at the Sumas Mountain Asbestos Site—Working towards a toolbox for better assessment

Immobilization and phytotoxicity reduction of heavy metals in serpentine soil using biochar

Influence of soil water content and soil amendments on trace metal release and seedling growth in serpentine soil

Contact Info

Product

Resources

About