Compound

Residence half time in air, hr

Health impact

Occupational limits

n-Nonane

40.8

Irritation eyes, skin, nose, throat; headache, drowsiness, dizziness, confusion, nausea, tremor, discordination

TLV: 200 ppm (1050 mg/m³)

n-Decane

33.2

Irritation eyes, skin. Little impact

TLV Not established

n-Undecane

29

No clear indication of risks

TLV Not established

n-Dodecane

27

Irritation eyes, skin. Little impact

TEEL-0: Concentration below which people will experience no adverse health effects is 0.015 ppm (105 μg/m³)

n-Tridecane

24

Irritating to eyes and skin. Inhalation causes irritation of the lungs and respiratory system.

TLV Not established

n-Tetradecane

19.2

Irritation eyes, skin. Inhalation causes irritation of the lungs and respiratory system

TLV Not established

n-Pentadecane

17

No clear indication of risks

TLV Not established

Naphthalene

18

Irritating to skin and eyes

TWA 10 ppm (50 mg/m³)

1-Methylnaphthalene

7.3

Irritation. Toxic by all routes (i.e., ingestion, inhalation, and skin contact)

TLV = 0.5 ppm (2.9 mg/m³)

2-Methylnaphthalene

7.4

Irritating to skin

TLV = 0.5 ppm (2.9 mg/m³)

Phenanthrene

36 - 1570

A known irritant, photosensitizing skin to light. Potential occupational carcinogen

TWA = 0.028 ppm (0.2 mg/m³)