def

pm25-concentration

Concentration of particulate matter 2.5 in the air.

conjunct

pm25

Particulate matter 2.5

concentration

Abundance of substance in the total volume of a mixture

meta

usage

supertypes

marker

Marker labels a dict with typing information

    quantity

Measurable property of a substance or phenomenon

        concentration

Abundance of substance in the total volume of a mixture

            airQuality

Concentration of contaminants in the air