Uncontaminated

On the other hand, Lavrov pointed out that depleted uranium shells would greatly reduce Ukraine’s ability to produce quality, uncontaminated foods, and it might lose the ability to produce agricultural production entirely.

And then, "Well, it's certainly uncontaminated by chicken".

However, I would argue that clean-tasting, uncontaminated, drinkable, disease-free water is not among those items we can do without.

In a nation uncontaminated by identity politics, both of the above statements would be seen as essentially the same.

Because uncontaminated plant foods do not provide vitamin B 12 (which is produced by microorganisms such as bacteria ), researchers agree that vegans should eat B 12 - fortified foods or take a supplement.

By 1898 the Curies had obtained traces of radium, but appreciable quantities, uncontaminated with barium, were still beyond reach.

Therefore, the magnitude scale was extrapolated to all wavelengths on the basis of the black body radiation curve for an ideal stellar surface at 11,000 K uncontaminated by circumstellar radiation.