Difference between Harmful and Noxious

HARMFUL vs NOXIOUS: ADJECTIVE

Synonyms Noxious, Pernicious, Noisome, pestiferous, pestilent, poisonous, mischievous, corrupting. That which is noxious is actively and energetically harmful. That which is pernicious is as actively destructive. Noisome and noxious were once essentially the same (see Job xxxi. 40, margin; Ps. xci. 3; Ezek. xiv. 21), but noisome now snggests primarily foulness of odor, with a secondary noxiousness to health. Unwholesome vapors that do not offend the sense of smell would now hardly be called noisome.
Guilty; criminal.
Hurtful; harmful; baneful; pernicious: as, noxious vapors; noxious animals.

Disadvantageous, Insidious, Negative, Hurtful, Prejudicial, Degrading, Unsafe, Pernicious, Noxious, Counterproductive, Dangerous, Damaging, Deleterious, Injurious, Detrimental

Pollutant, Toxic, Poisonous, Vesicant, Vesicatory, Hurtful, Corrupting, Deadly, Degrading, Baneful, Deleterious, Injurious, Harmful, Pestilent, Pernicious

Disadvantageous, Insidious, Negative, Hurtful, Prejudicial, Degrading, Unsafe, Pernicious, Noxious, Counterproductive, Dangerous, Damaging, Deleterious, Injurious, Detrimental

Pollutant, Toxic, Poisonous, Vesicatory, Vesicant, Hurtful, Corrupting, Deadly, Degrading, Baneful, Deleterious, Injurious, Harmful, Pestilent, Pernicious

Shampoo, conditioner, and soaps free of harmful packaging.
Compliance information cause harmful interference to radio communications.
Are genetically modified food products really that harmful?
Seed treated with substance harmful to vertebrate animals; color; label information; description of treated seed not harmful to vertebrate animals.
It is a commonplace of evidence law that a litigant is not entitled to exclude harmful evidence, but only unfairly harmful evidence.
It is untrue that the novel coronavirus grows and multiplies in sewers, and pouring harmful chemicals into sewers will have harmful effects.
We talk a lot about how harmful synthetic fragrances are, but there are other ingredients in conventional cleaning products that can be harmful.
Harmful Effects Pesticides can cause three types of harmful effects: acute effects.
Acts by a caregiver resulting in unnecessary, harmful or potentially harmful medical care to a child.
These records pertain to employees exposed to harmful toxic substances or harmful physical agents.

So when does a common, essential practice become noxious, so noxious that almost a century of settled expectations have to be undone?
Noxious stimulus: A noxious stimulus is one, which is damaging to normal tissues.
Seven weeds are deemed noxious and prohibited; another eight are called noxious and the Weed Act says they should be controlled.
The Federal Noxious Weed Act establishes a federal program to control the spread of noxious weeds.
Municipal Enforcement Officers will be patrolling the city for noxious and prohibited noxious weeds, as well as promptly responding to citizen complaints.
There were no noxious weeds prior to the overpass and the south side remains noxious weed free.
The implemented an active noxious weed woefully inadequate in addressing noxious inmore than pay lip service to this potential environmental disaster.
Weed Information Links USU Noxious Weed Guide Utah Noxious Weed Law Utah Noxious Weed List Utah Weed Control Assoc.
General Facility Requirements Noxious weeds Listed noxious vegetation is present.
Noxious Weed Department the control and eradication of noxious weeds.