Variable
2-ketobutyric_acid
3-MBTCA
3-hydroxybutyric_acid
4-hydroxybenzoic_acid
4-methylphthalic_acid
4-oxoheptanoic_acid
adipic_acid
adonitol
ammonium_ug_N_per_m3
ammonium_ug_per_m3
arabitol
azelaic_acid
benzoic_acid
calcium
caproic_acid
chloride
cis-pinonic_acid
citraconic_acid
citric_acid
fructose
gluconic_acid
glucose
glutaric_acid
glycolic_acid
glyoxylic_acid
inositol
lactic_acid
lactose
levoglucosan
magnesium
maleic_acid
malic_acid
malonic_acid
maltose
mannitol
mannose
melezitose
methanesulfonic_acid
nitrate_ug_N_per_m3
nitrate_ug_per_m3
oxalic_acid
phthalic_acid
pimelic_acid
pinic_acid
potassium
pyruvic_acid
rhamnose
sebacic_acid
sodium
sorbitol
suberic_acid
succinic_acid
sucrose
sulphate_total_ug_S_per_m3
sulphate_total_ug_per_m3
sum_2-methyltetrols
tartaric_acid