A Simple Approach for Measuring Emission Patterns of Vapor Phase Mercury under Temperature-Controlled Conditions from Soil
Table 3
Summary of experiments using three soil samples with a total weight of 100 ga.
(a) Hg concentration exiting the chamber (ng m−3)
Temp
C(S1)b
C(S2)
C(S3-1)
C(S3-2)
C(S3-3)
25
17.101
3.684
7.502
NM
NM
30
14.702
3.116
4.782
0.089
0.016
40
48.746
7.647
9.515
0.328
0.131
50
60.455
12.350
34.146
1.316
0.699
60
38.728
10.452
56.805
4.208
2.559
70
NM
12.696
35.930
11.619
6.715
(b) Hg emission flux (ng m−2 h−1)
Temp
F(S1)
F(S2)
F(S3-1)
F(S3-2)
F(S3-3)
25
169.9
36.6
74.5
NM
NM
30
146.1
31.0
47.5
0.9
0.2
40
484.4
76.0
94.6
3.3
1.3
50
600.7
122.7
339.3
13.1
6.9
60
384.8
103.9
564.5
41.8
25.4
70
126.2
357.0
115.5
66.7
(c) Relationship between versus ln(emission flux)
(abs)
ln(F(S1))
ln(F(S2))
ln(F(S3-1))
ln(F(S3-2))
ln(F(S3-3))
0.0034
5.1354
3.6003
4.3114
0.0033
4.9842
3.4329
3.8612
−0.1230
−1.8362
0.0032
6.1829
4.3306
4.5492
1.1805
0.2617
0.0031
6.3981
4.8099
5.8269
2.5705
1.9384
0.0030
5.9528
4.6431
6.3359
3.7333
3.2360
0.0029
4.8376
5.8778
4.7488
4.2005
aThree soil samples are named S1, S2, and S3, and the number of repetition is given after the hyphen.
b Initiation dates for each experiment: S1 (22 December 2009), S2 (30 December 2009), S3-1 (26 January 2010), S3-2 (2 February 2010), and S3-3 (11 February 2010).
