SCHEDULE 6MEASUREMENTS OF OZONE PRECURSOR SUBSTANCES

Substances1.2

Measurements of ozone precursor substances must include at least nitrogen oxides, and appropriate volatile organic compounds (VOC). A list of volatile organic compounds recommended for measurement is given below.

Ethane

1-Butene

Isoprene

Ethyl benzene

Ethylene

trans-2-Butene

n-Hexane

M+p-Xylene

Acetylene

cis-2-Butene

i-Hexane

o-Xylene

Propane

1.3-Butadiene

n-Heptane

1,2,4-Trimeth. Benzene

Propene

n-Pentane

n-Octane

1,2,3-Trimeth. Benzene

n-Butane

i-Pentane

i-Octane

1,3,5-Trimeth. Benzene

i-Butane

1-Pentene

Benzene

Formaldehyde

2-Pentene

Toluene

Total non-methane hydrocarbons