Do It Yourself

In the petroleum refining and petrochemical industries, the initialism BTX refers to mixtures of benzene, toluene, ethylbenzene and the three xylene isomers, all of which are aromatic hydrocarbons. 

In the petroleum refining and petrochemical industries, the initialism BTX refers to mixtures of benzene, toluene, ethylbenzene and the three xylene isomers, all of which are aromatic hydrocarbons. 

Total Petroleum Hydrocarbons

Slur dioxide

A unit of concentration expressed as parts per million. Equivalent to 1 x 10⁻⁶.

A unit of concentration expressed as parts per billion. Equivalent to 1 x 10⁻⁹.

Particulate matter with a diameter of 2.5 micrometers or less. Also referred to as fine particles.

Particulate matter with a diameter of 10 micrometers or less. Also referred to as inhalable coarse particles.

Particulate matter