Small Molecules

Carbonyl sulfide

18–42 µg

0.03–0.1

HCN

160–500 µg

0.06–0.5

CO

10–23 mg

2.5–4.7

Hydrazine

20–43 µg

3

Methane

600–1000 µg

3.1–4.8

Acetylene

20–40 µg

0.8–2.5

Nitrogen oxides

100–600 µg

4–13

CO₂

20–50 mg

8–11

H₂O (gas phase)

3–14 mg

24–30

NH₃

50–130 µg

40–170

N₂ (generated)

<10 µg

>270

Neutral Heteroatom Organics

Acetonitrile

50–130 µg

40–170

Benzonitrile

5–6 µg

7–10

Acetamide

70–100 µg

0.8–1.7

Methyl chloride

150–600 µg

1.7–3.3

Aldehydes, Ketones, Alcohols

Acetaldehyde

0.5–1.2 mg

1.4

Propionaldehyde

175–250 µg

2.4–2.8

Acetone

100–250 µg

2–5

Acrolein

60–100 µg

8–15

2-Butanone

~30 µg

2.9–4.3

2-Furaldehyde

15–43 µg

4.9–7.4

Furfuryl alcohol

18–65 µg

3.0–4.8

Cyclotene^a

3–5 µg

6–10

Pyranone^b

13–150 µg

0.1–1.2

Phytosterols

β-Sitosterol

59 µg

0.5

Campesterol

43 µg

0.6

Cholesterol

22 µg

0.9

Phenols

Phenol

60–140 µg

1.6–3.0

Cresols (o-,m-,p-)

11–37 µg

1.0–1.4

Catechol

100–360 µg

0.6–0.9

Hydroquinone

110–300 µg

0.7–1.0

Acids

Formic acid

210–490 µg

1.4–1.6

Acetic acid

270–810 µg

1.9–3.9

3-Methylvaleric acid

20–60 µg

0.8–1.5