No.
The carbon isotope Carbon-14, or radiocarbon, is found in the human body in the same proportions as there is carbon in the atmosphere. It comes to us from the food we eat, but the levels are too low to be dangerous, either to us or to the environment.
oil tankers are dangerous to humans by the pollution of the environment
NO, it is found in abundance in the air.
Sodium lauryl sulfate is useful for humans and is not dangerous.
Plutonium is toxic and radioactive; a contaminated area is dangerous for humans.
Humans would be the most dangerous because we kill almmost everything. We make tons of animals endangered because of hunting and environment lost.
Alcohol is a dangerous threat to humans. It spoils their health, crushes many families once you get addicted to it.
It is really only dangerous to the environment if it is used. Although, it can be harmful if it spills and there are humans nearby or right there.
no I am pretty sure that they are not dangerous to humans
Not normally, but Humans are dangerous to them.
Calcium carbonate is not dangerous for the environment !
no I am pretty sure that they are not dangerous to humans
As a radioactive chemical element, technetium may be dangerous to humans.