Collocations with "concentration"

a place where large numbers of people are imprisoned in poor conditions, especially for political reasons

Refers to the amount of glucose, typically in a fluid like blood.

the amount of ozone in a given volume of air

Refers to the density of CO2 in a given volume, especially in the atmosphere.

describes a level of a substance that changes or is not consistent

The amount of calcium present in a substance, typically blood or a solution.

A high amount of a substance within another substance or in a specific area.

a large amount of something in a particular area