Assessment of Mercury-Polluted Soils Adjacent to an Old Mercury-Fulminate Production Plant

Table 1

Values of pH in water, KCl, and H₂O₂ (pH of oxidation), Eh of selected soil samples, organic C content, and Hg concentration of selected soil samples. Standard errors of Hg concentrations are indicated in parentheses (𝑛=4).

Site	Horizon	Depth	pH-H2O	pH-KCl	pH-oxidation	Eh	Organic C	Hg conc.
		(cm)				(mV)	(gKg^−1)	(mgkg^−1)
I-8	O		5.90	6.21	4.09	468	182.0	838 (22)
I-8	Ah1	0–10	6.73	6.63	4.99	503	18.2	234 (6)
P-6	Ah1	0–10	6.52	6.40	6.42	484	57.0	6.96 (0.12)
A-2	Ah1	0–15	6.20	5.75	5.34	278	19.0	33.6 (1.2)
M-2	Ah1	0–10	7.10	7.58	6.44	268	75.0	3377 (39)
M-3	Ah1	0–10	7.59	7.46	5.96	288	78.0	5883 (252)
M-4	Ah1	0–5	7.58	7.27	5.93	284	104.0	6350 (135)
M-5	Ah1	0–5	7.68	7.67	6.44	396	15.0	1546 (81)
M-6	Ah1	0–20	7.07	6.83	5.86	200	56.0	1687 (222)
M-9	Ah1	0–30	5.95	4.94	5.36	281	12.0	26.4 (0.2)
M-10	Ah1	0–5	6.93	6.52	4.83	275	89.0	9043 (779)
M-11	Ah1	0–20	5.36	4.81	4.05	533	64.9	392 (5)
M-12	Ah1	0–20	4.76	4.51	3.20	485	120.0	280 (6)
P-11	Ah2	10–20	7.45	7.12	6.27	426	34.8	43.7 (1.1)
L-4	Ah2	10–20	4.24	3.93	3.78	620	30.2	50.7 (3.0)
L-4	CA	70–80	7.79	7.44	6.50	454	15.8	421 (15)
P-13	C	10–20	4.22	4.16	4.20	551	4.2	109 (2)
P-14	C	8–15	4.08	4.27	4.45	543	7.4	132 (2)
P-15	C	10–18	5.64	5.86	6.13	502	7.2	150 (11)
P-15	C	18–43	4.23	3.78	4.15	549	3.9	212 (9)
P-15	C	43–93	3.88	4.71	3.93	543	8.0	35.3 (1.6)
P-16	C	10–30	3.87	3.61	3.32	639	6.1	27.1 (1.9)
P-8	C	78–210	7.38	8.04	7.28	423	5.0	2.46 (0.06)