TABLE 4.1
Properties of Representative VOCs and SVOCs
Vapor Pressure
Henry’s Law
Water Solubility
IARC
VOC
at 25°C (Pa)
Constant (Pa m 3
/mol)
(mg/L)
Classif cation a
TAC
HAP b
Prop 65
Solvents, Aromatic Hydrocarbons (HCs), Nonchlorinated
Benzene
1.26E04
562.3
1,880
1
x
x
Ethylbenzene
1.28E03
798.4
157.63
2B
x
Toluene
3.79E03
672.8
526
3
x
x
Xylene
8.81E02
681.9
161.92
3
x
x
Polycyclic Aromatic HCs
Naphthalene
1.13E01
48.9
31.0
2B
x
x
x
Dibenz[a,h]anthracene
1.27E−07
1.5E−03
0.00249
2A
x
Pesticides
Chlorpyrifos
2.71E−03
1.114
1.4
N/A
x
x
Endosulfan
2.31E−05
1.135
0.510
N/A
x
Lindane
4.70E−03
1.418
6.80
1
x
x
x
Pesticides (Fumigants)
Methyl bromide
2.16E05
632.3
1.52E04
3
x
x
x
Methyl isothiocyanate (MITC)
2666
0.679
7,600
N/A
x
x (MIC)
x (MIC)
1,3-Dichloropropene (Telone)
4.53E03
1,793.4
2,800
2B
x
x
x
Monomers
Vinyl chloride
3.97E05
2,735.7
2,760
1
x
x
Acrylonitrile
1.45E04
10.13
74,000
2B
x
x
Styrene
8.53E02
2.786
310
2B
x
x
Source:
Adapted from Woodrow et al. (2018).
a
IARC classifcation: Group 1, carcinogenic to humans; Group 2A, probably carcinogenic to humans; Group 2B, possibly not carcinogenic to humans;
Group 3, not classifable as to its carcinogenicity to humans; Group 4, probably not carcinogenic to humans (IARC 2018).
b
U.S. EPA (2016). HAP list.
Pesticide Exposure and Impact
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