Accumulation and distribution of trace metals within soils and the austral cordgrass Spartina densiflora in a Patagonian salt marsh

Leaf shape variation as a potential biomarker of soil pollution

“…Like other halophytes, plants inhabiting in salt marshes are adapted to extreme conditions of flooding, and soil anoxia and high salinities. Furthermore, occupation of contaminated soils has been reported as well (Duarte et al, 2010;Idaszkin et al, 2011Idaszkin et al, , 2015Idaszkin et al, , 2017cRedondo-Gómez, 2013). However, when pollutants such as heavy metals are in excess they could be toxic for the plants, having deleterious effects.…”

“…Previous studies evidence a gradient in soil metals content within the salt marsh surrounding the San Antonio Bay (Patagonia, Argentina) (Idaszkin et al, 2015(Idaszkin et al, , 2017a(Idaszkin et al, , 2017b(Idaszkin et al, , 2017c. This salt marsh is inhabited by the cord grasses of the genus Spartina and other halophytes such as Sarcocornia perennis, Limonium brasiliense, and Cressa truxillensis.…”

Hazardous metal pollution in a protected coastal area from Northern Patagonia (Argentina)

“…The responsible mining industry operated between the 1960s and 1980s, extracting principally minerals of Pb, Zn, Ag, and V. Subsequent research reported high levels of metals in invertebrates, such as the crab N. granulata (Gil et al 2006) and the bivalve Brachidontes rodriguezii (Vázquez et al 2007), suggesting not only metal remobilization from the pile due to chemical-related processes (acidity and/or oxidationreduction) and/or physical-related processes (wind/rain/flood) but also its bioavailability within the bay. More recently, research on S. densiflora informed that below-ground structures reflect the soil metal concentration pattern but is not so evident in above-ground structures (Idaszkin et al 2015).…”

“…There are several studies to date that have assessed the pollution extent in SAB (Gil et al 1999;Bonuccelli et al 2004;Gil et al 2006;Vázquez et al 2007;De Pietri et al 2008;Idaszkin et al 2015), but none of them made a risk assessment. In this research, we performed a screening-level ecological risk assessment by (a) examining the concentrations of metals in soils from the pile and in sediments from the mudflat and the salt marsh; (b) comparing them with background and/or guideline values and, in addition, making an approach to human risk health through the exposition to pile-Fig.…”

Multidimensional approach to evaluate Limonium brasiliense as source of early biomarkers for lead pollution monitoring under different saline conditions

“…Among worldwide ecosystems, salt marshes have been considered as one of the most impacted ecosystems in terms of anthropogenicdriven lead contamination (Banus et al, 1974;Fitzgerald et al, 2003;Reboreda and Caçador, 2007;Idaszkin et al, 2015Idaszkin et al, , 2017. Like other heavy metals that reach the salt marshes, Pb can be accumulated in their soils or plants.…”