Level of toxicity, with "caution" being the least toxic and "danger" the most toxic.
The selected ecotoxicity tests with algae, daphnia, and luminescent bacteria were able to demonstrate toxic effects, as well as the level of toxicity of the eluates.
Besides being more toxic to humans, they are also more toxic to terrestrial plants and animal life, and have twice the level of toxicity to freshwater life.
This helps you score comments for their level of toxicity.
"My brother had no idea about the level of toxicity of the chemicals he was exposed to daily," Lahssent explains to the Guardian and Swiss National TV.
The level of toxicity in the tailings is not yet clear, but iron oxide can choke river sand and poison the surrounding vegetation.
Updated at 3.28pm GMT 3.11pm GMT Internal emails obtained by the Pollard review show the level of toxicity between some key BBC figures at the height of the Savile saga.
None of the TPO1 transgenic lines displayed a phenotype when challenged with the highest concentration of Cd2+, probably because this level of toxicity is high enough to surpass Tpo1p-mediated resistance.
"For a male contraceptive even a very low level of toxicity is unacceptable which is why we adopted the approach of using follicle-stimulating hormone," Dr Cheng said.
The level of toxicity appears to depend on soil conditions; decaying locoweeds release toxins sometimes taken up by otherwise harmless forage crops.
The cellular interactions and pathways of engineered submicro- and nano-scale particles dictate the cellular response and ultimately determine the level of toxicity or biocompatibility of the particles.
