## Concept information

### PREFERRED TERM

gaseous heptachlor epoxide 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 heptachlor epoxide is C10H5Cl7O. It is a member of the group of persistent organic pollutants (POPs). The IUPAC name is (1S,2R,3S,5S,6R,7S,8R)-1,6,8,9,10,11,11-heptachloro-4-oxatetracyclo[6.2.1.02,7.03,5]undec-9-ene

### BROADER CONCEPT

### ENTRY TERMS

- heptachlor epoxide mass concentration

### OBSERVATION MATRIX

### OBJECT OF INTEREST

### OBSERVED PROPERTY

### URI

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

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