What is the toxicity of radon, mold, carbon monoxide, and dust mites?

Toxicity is most often determined by a materials effect on animals and not on humans. Standard toxicity levels do not always reflect the lethal dosage to every human. The levels are hypothetical.

Some toxicity information for above is as follows: For Carbon monoxide a person can be exposed to 9ppm or 10mg per liter of air for eight hours or 35ppm for one hour. In the average home, Radon is 1.3picocuries per liter of air and anything above that makes that material more effective. Carbon Monoxide binds with hemoglobin more readily and more irriversibly than oxygen so it is an asphyxiant. Mold and mites can cause asthma, and other allergic sensitivities. Breathing a lot of any of these materials can cause a littany of health problems and even mortification. The greater the dose one is exposed to the greater the contaminants potential to effect.