The phrase "a lethal quantity of" is correct and usable in written English.
It can be used in contexts discussing substances, such as drugs or toxins, that can cause death if ingested or administered in sufficient amounts.
Example: "The investigation revealed that the suspect had access to a lethal quantity of poison, which raised concerns about potential harm to others."
Alternatives: "a deadly amount of" or "a fatal dose of".
Documents released under the Clinton administration confirm that the agency invested in a large volume of Caribbean molluscs with the intention of finding a shell big enough to contain a lethal quantity of explosives.
The idea was to find a shell big enough to contain a lethal quantity of explosives, which would then be painted in colours lurid and bright enough to attract Castro's attention when he was underwater.
For instance s's background information should in this case include scientific assumptions e.g., that a lethal quantity of the toxins contained in the specified mushrooms will kill an ordinary human being who has taken no antidote shortly after its absorption and assumptions about Jones e.g., that Jones is an ordinary individual who has taken no antidote.
Years later, I had to sign the order setting a time for this man's death—"by intravenous injection of a substance or substances in a lethal quantity sufficient to cause death and until such convict is dead"—and I remember staring at the paper, feeling strange and unnerved.
But in seeking a source of Ms. Nguyen's lethal quantity of spores, much remains vexing, she and other health and law enforcement investigators said.
The drugs were laced with lethal quantities of an antimalarial drug and administered in excessive doses.
Experts cautioned that a ventilation system could be used to spread lethal quantities of anthrax.
Not content with wholesomely dousing themselves in cold water, teens are now daring each other online to swallow lethal quantities of painkillers.
Early research suggested that injection of lethal quantities of astatine caused morphological changes in breast tissue (although not other tissues); this conclusion remains controversial.
Prosecutors allege Port invited the young men to his flat in Barking after meeting them online, before giving them lethal quantities of the drug, raping them, and then dumping their bodies nearby.
While fentanyl-laced heroin and other drugs appear to be spreading rapidly, affecting every state, fentanyl is killing people episodically only in certain cities, counties and neighborhoods where dealers inadvertently are selling heroin and other drugs combined with lethal quantities of the substance, Kolodny said.
