They will always remain toxic. A toxic chemical is a toxic chemical. Cyanide will always have the ability to kill you and will never, not be deadly.
"Toxic chemicals" are any chemicals that are harmful to humans - and that includes a WIDE VARIETY of different substances. How long they exist will therefore depend on the specific chemical, and on the specific circumstances.
All animals are affected by toxic chemicals.
The question is toxic to what. Not all chemicals which are toxic to humans are toxic to bacteria, and some chemicals which are toxic to bacteria are harmless to humans (which is why we can have antibiotics). There are chemicals (like Hydrogen Sulfide) which are very toxic to mammals that SOME bacteria eat as food. But there are other chemicals like chlorine which are toxic to both humans and bacteria. So the question does not have a simple answer.
There are too many to name. Assume all chemicals in lab are toxic.
Green chemistry focuses on eliminating the use of toxic chemicals in chemistry without stifling.
Do all toxic chemicals have both local and systemic effects
That liquid is toxic, so don't drink it. The toxic chemicals spilled into the stream.
Be very careful of pool chemicals as they are toxic to all pets. A lot of chemicals are safe once diluted but not everything is safe. www.petinsurance.com
Probably not!
something that make toxic chemicals are glue ,and gas.
Insecticides can be toxic to humans. and if used around food, chemicals can enter your food which is unhealthy for the body. Insecticides can be toxic to humans. and if used around food, chemicals can enter your food which is unhealthy for the body.
No