Potential of Aquatic Macrophytes as Bioindicators of Heavy Metal Pollution in Urban Stormwater Runoff

Abstract

International audienceThe concentrations of heavy metals in water, sediments, soil, roots, and shoots of five aquatic macrophytes species (Oenanthe sp., Juncus sp., Typha sp., Callitriche sp.1, and Callitriche sp.2) collected from a detention pond receiving stormwater runoff coming from a highway were measured to ascertain whether plants organs are characterized by differential accumulations and to evaluate the potential of the plant species as bioindicators of heavy metal pollution in urban stormwater runoff. Heavy metals considered for water and sediment analysis were Cd, Cr, Cu, Ni, Pb, Zn, and As. Heavy metals considered for plant and soil analysis were Cd, Ni, and Zn. The metal concentrations in water, sediments, plants, and corresponding soil showed that the studied site is contaminated by heavy metals, probably due to the road traffic. Results also showed that plant roots had higher metal content than aboveground tissues. The floating plants displayed higher metal accumulation than the three other rooted plants. Heavy metal concentrations measured in the organs of the rooted plants increased when metal concentrations measured in the soil increased. The highest metal bioconcentration factors (BCF) were obtained for cadmium and nickel accumulation by Typha sp. (BCF = 1.3 and 0.8, respectively) and zinc accumulation by Juncus sp. (BCF = 4.8). Our results underline the potential use of such plant species for heavy metal biomonitoring in water, sediments, and soil

Effectiveness of Amaranthus gangeticus in Arsenic Extraction from Soil

“…Bioconcentration factor indicates the appropriateness of a plant in accumulating a metal into its harvested tissues from the surrounding environment [32]. It is calculated by following equation [33,34].…”

Toxicity of gold nanoparticles for plants in experimental aquatic system

“…Ïîëó÷åííûå ðåçóëüòàòû âíîñÿò âêëàä â èçó÷å-íèå âçàèìîäåéñòâèé ìåòàëëîâ ñ âîäíûìè ðàñòåíèÿ-ìè [34][35], à òàêaeå â èçó÷åíèå òîêñè÷íîñòè íàíîìà-òåðèàëîâ äëÿ âîäíûõ îðãàíèçìîâ [36]. Íàêîïëåíèå ôàêòîâ î ïîòåíöèàëüíîé òîêñè÷íîñòè íàíîìàòåðè-àëîâ ïðåäñòàâëÿåò èíòåðåñ òàêaeå â ñâÿçè ñ òåì, ÷òî âûäâèãàþòñÿ ïðåäëîaeåíèÿ èñïîëüçîâàòü íàíîìàòåðè-àëû äëÿ î÷èùåíèÿ âîä îò êîíòàìèíàíòîâ [37].…”

Biomass reduction of Salvinia molesta exposed to copper sulfate pentahydrate (CuSO4.5H2O)

“…The sensitivity to different substances allows the use of S. molesta as a biological indicator of contaminated environments (Suñe et al, 2007) while its high growth rate favors its use as phytoremediation agent. In addition to the ability to absorb nutrients, Kumar et al (2008) and Ladislas et al (2012) reported that some species of macrophytes have great potential for removing heavy metals from water and sediments. Although the metal removal capacity is a desirable feature in macrophytes used in phytoremediation of contaminated aquatic environments, it is important to know the morphological and physiological damage caused by heavy metal accumulation on macrophyte tissues (Milan et al, 2006).…”