The phrase "persistent odor" is correct and usable in written English.
You might use it when referring to an odor that continues to exist over a period of time and persists in spite of efforts to remove it. For example: "Despite opening the windows, the persistent odor of smoke remained in the house."
In vivo two-photon-targeted patch recording revealed that PVNs have exceptionally broad olfactory receptive fields and exhibit largely excitatory and persistent odor responses.
They immediately lodged complaints, saying elevators were operating erratically, they lacked heat and there was a persistent odor of oil on the upper floors.
Also in March, Alexander Bryant, the plumber, explained that the cause of a persistent odor in hot air vents was "due to men having urinated on the coal" during construction, and he offered to disinfect the ducts.
The availability of Bloom recalls a biosolid named ComPRO that was used enthusiastically by D.C. area gardeners until Montgomery County closed the composting facility in 1999 because of persistent odor problems for neighbors.
"There's some indication in some people we've seen that they get this persistent odor," he said.
A persistent odor from the oil forced a nearby school to close for several days.
The long-lasting thiol acetates cause the persistent odors and may start working again, especially if the pet gets wet.
If you have problems with persistent vaginal odor (especially a "fishy" smell), consult your doctor.
A persistent foul odor filled the house.
We don't know for sure right now, but we think there may be people who permanently lose their sense of smell after this kind of episode". After a period of time, some victims report sensing a persistent, strange odor.
Victims of obstetric fistula were reported to have a persistent bad odor.
