## Concept information

### PREFERRED TERM

gaseous PCB 70 and PCB 60 mass concentration

### DEFINITION

- Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. PCB 70 and PCB 60 is a mixture of two compunds and belongs to the group of persistent organic pollutants known as polychlorinated biphenyls (PCBs).

### BROADER CONCEPT

### ENTRY TERMS

- PCB 70 and PCB 60 mass concentration

### OBSERVATION MATRIX

### OBSERVED PROPERTY

### URI

https://vocabulary.actris.nilu.no/actris_vocab/PCB70andPCB60massconcentration

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