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Updated: Jul 7, 2026

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium
Published on: December 17, 2018
Effect of organic matter and pH on mercury release from soils
Yong-kui Yang1, Cheng Zhang, Xiao-jun Shi
1College of Resources and Environment, Southwest University, Chongqing 400716, China. peteryang000@126.com
Abstract:
An investigation was conducted on the effect of organic matter (OM) and pH on mercury (Hg) release from soils. Hg release flux was measured using the dynamic flux chamber (DFC) combined with the Lumex multifunctional mercury analyzer in both laboratory experiment and field monitoring. The results showed that Hg emission from the OM-added soils was apparently low because of the high affinity of OM to Hg, resulting in the reverse order as the amount of OM addition. Meanwhile, Hg release flux from different pH value soils exhibited the same trend for both Hg(2+) and Hg2(2+) treatment, increasing the Hg flux with pH value of soils increasing. The trend of Hg release in the pH dependence experiment has been well in agreement with that from the field test. In addition, Hg release seemed to be related to its species in the soil, the flux from Hg(2+)-added soil was obviously higher than that of Hg22z-added soil by the laboratory experiment.
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