2020
DOI: 10.1016/j.scitotenv.2020.138122
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Distribution and mobilization of heavy metals at an acid mine drainage affected region in South China, a post-remediation study

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Cited by 124 publications
(60 citation statements)
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“…Moreover, metal concentrations in sediments are proposed to increase with a decrease in particle size and an increase in organic matter content (Paronda et al, 2019). Consistent with this idea, site W, which had coarser sediments and low organic matter content compared to the other sites (Luo et al, 2020), resulted in low metal concentrations. Because size and metal content in sediments vary, it will influence the amount of metals ingested by aquatic organisms when they forage.…”
Section: Metal Concentrations In Different Sitesmentioning
confidence: 78%
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“…Moreover, metal concentrations in sediments are proposed to increase with a decrease in particle size and an increase in organic matter content (Paronda et al, 2019). Consistent with this idea, site W, which had coarser sediments and low organic matter content compared to the other sites (Luo et al, 2020), resulted in low metal concentrations. Because size and metal content in sediments vary, it will influence the amount of metals ingested by aquatic organisms when they forage.…”
Section: Metal Concentrations In Different Sitesmentioning
confidence: 78%
“…Although zinc concentration in gills is not high (except for C. carpio), a moderate level of zinc bioaccumulates in gills (Table 3). Indeed, a rapid decline of calcium levels observed downstream in the river (Luo et al, 2020) coincides with the increase of zinc in aquatic organisms (lime is added in the upstream section near the mine as part of AMD remediation). This trend supports the connection between declining calcium levels and bioaccumulation of zinc in gills downstream (Bradley & Sprague, 1985).…”
Section: Metals In Sediments and Organismsmentioning
confidence: 99%
“…In the wet period, Cd levels at all sites were nearly equal to or exceeded the SQGs except ERL. Heavy metals in soils and sediments are known to mobilize and increase availability during rainy seasons [52][53][54]. Although the concentrations of Cr at all sites were higher during the wet period compared to the dry period of the year 2019, none of the sites had Cr levels above the SQGs in both sampling periods.…”
Section: Heavy Metals In Sedimentsmentioning
confidence: 86%
“…The FPM is the waste with natural greater contents of Cd, but no mobilization of Cd was observed. The natural contents of Cd in FPM is within the range of background contents in soils (5.96 and 2.48 mg kg − 1 ) which promoted a safe value for Cd in rice according to the CAC (Codex Alimentarius Comission 2004) and according to the Chinese Standard, respectively (Luo et al 2020). However, the Brazilian limit for Cd in rice is 0.1 mg kg − 1 (ANVISA 2013) and some residues have exceeded this limit in grains, especially the MPR applied at doses above 4 t ha − 1 .…”
Section: Pte's In Plant Partsmentioning
confidence: 85%