The sensors detect concentrations of toxic compounds.
Finally, plants have evolved an incredible variety of toxic compounds to ward off predators.
The authority estimates that a single turbine could produce as much as 61 tons a year of toxic compounds, soot and chemicals that contribute to smog.
But like any plants that burn fossil fuels, with each turbine producing up to 61 tons a year of toxic compounds, soot and chemicals that contribute to smog.
The death of Chris McCandless should serve as a caveat to other foragers: Even when some parts of a plant are known to be edible, other parts of the same species may contain dangerous concentrations of toxic compounds.
Still, in what scientists say shows that the technique works in principle, early studies are finding that different types of toxic compounds -- hormone disruptors, carcinogens, liver poisons and so on -- have been found to have distinct signatures.
They may increase concentrations of toxic compounds to ward off the enemy, or they may release compounds of their own that attract the enemy's predators.
Towards the tropics the amount of toxic compounds in plants increases and so does the amount of earth eaten by herbivores.
This high content of toxic compounds presents a disposal challenge.
On the other hand, the other types of toxic compounds exhibit a variable behavior.
Biodiesel and biodiesel blends reduce total emissions of various classes of toxic compounds.
