## Concept information

### PREFERRED TERM

gaseous p,p-DDD 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'. The chmical formula for p,p-DDD is C14H10Cl4. It is a member of the group of persistent organic pollutants (POPs). The IUPAC name is 1-chloro-4-[2,2-dichloro-1-(4-chlorophenyl)ethyl]benzene

### BROADER CONCEPT

### ENTRY TERMS

- p,p-DDD mass concentration

### OBSERVATION MATRIX

### OBJECT OF INTEREST

### OBSERVED PROPERTY

### URI

https://vocabulary.actris.nilu.no/actris_vocab/p-p-DDDmassconcentration

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