ConcentrationsofSelectedVolatileAndSemivolatileOrganicCompounds(pptbyvolume)intheAirInsideBeehivesfromSitesinMaryland,USA
Compound | Maximumlevel,ppt | Meanlevel,ppt(n=17) |
Trichloromethane
70
20
|
Tetrachloromethane
25
4
|
1,2-Dichloroethane
2
1
|
1,1,1-Trichloroethane
826
55
|
1,1,2,2-Tetrachloroethane
4
4
|
cis-1,2-Dichloroethene
839
149
|
1,1-Dichloroethene
128
18
|
Trichloroethene
2
1
|
Tetrachloroethene
19
7
|
1,4-Dichlorobenzene
46
6
|
Bromobenzene
86
6
|
Benzene
170
78
|
Toluene
1643
662
|
Ethylbenzene
146
64
|
o-Xylene
118
44
|
Styrene
9239
1594
|
Naphthalene
16
2
|
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112
11
|