Toxicity and bioavailability to bacteria of particle-associated arsenite and mercury

The impacts of different long-term fertilization regimes on the bioavailability of arsenic in soil: integrating chemical approach with Escherichia coli arsRp::luc-based biosensor

“…It is in accordance with the research of Ivask et al (2007), in which they found that fourfold more As was available to nonimmobilized sensor bacteria. However, this result is inconsistent with the finding of Petanen and Romantschuk (2003), which indicated that there was no obvious difference of bioavailable As between the water-extractable fraction and soil-water slurry. The different characteristics of biosensor strain and soil sample may be major factors that led to the discrepant result.…”

Batch studies for the investigation of the sorption of the heavy metals Pb2+ and Zn2+ onto Amizour soil (Algeria)

“…Since these metals are nonbiodegradable, their pollution is long lasting and would entail pollution remediation strategies in the future (Meers et al, 2005;Luo et al, 2005;Lim et al, 2005). These metals are significantly toxic (Zabetoglou et al, 2003;Petänen and Romantschuk, 2003) even in very small amounts and can also cause debilitating diseases in humans and animals as they cause irreversible changes in the body especially in the central nervous system leading to psychotic disorders and other ailments (Lewis et al, 1992;Coen et al, 2001;Dolk and Vrijheid, 2003;Järup, 2003). The metals adsorption-desorption process in both natural soils and different minerals plays a significant role in controlling the aqueous concentration of heavy metal species in soils.…”

Integrated phytobial remediation for sustainable management of arsenic in soil and water

“…Biosensors can be engaged for rapid and reliable monitoring of the rate of elimination of bioavailable fraction of the pollutants (Shin, 2011). So far many biosensors have been developed and tested for detecting bioavailable fraction of As (Corbisiera et al, 1993;Tauriainen et al, 1997;Ramanathan et al, 1997;Petänen and Romantschuk, 2003). Whole cell biosensors use reporter gene luciferase or green fluorescent protein (GFP).…”