NDLI: An Easy Method to Measure Total Particulate Hg in Water Without Chemical Digestion

Content Provider	Springer Nature Link
Author	Sarica, José Amyot, Marc Hare, Landis
Copyright Year	2004
Abstract	Particle transport often plays an important role in trace metal cycling in aquatic systems. In this study, we propose a simple method to estimate total particulate Hg in water using combustion as a treatment prior to analysis as opposed to conventional chemical digestion. We also present a field validation of this method in a stream. We sampled water from a stream 24 and 48 h after a heavy storm to obtain two sets of water samples with contrasting particulate Hg levels. Measurements of particulate and dissolved Hg using our new direct combustion method compared favorably with those of total Hg in unfiltered samples (112 ± 15 %). U.S. E.P.A. standard method 1631 gave similar dissolved Hg levels but different particulate Hg levels (calculated as the difference between total and dissolved Hg concentrations) than those obtained with our new method. We suggest that this discrepancy is explained by the propagation of errors resulting from the several calculation steps used in the standard method. Our new method gives reliable results, without labor intensive and costly chemical digestion and analysis of filters.
Starting Page	3
Ending Page	10
Page Count	8
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	151
Issue Number	1-4
e-ISSN	15732932
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrogeology Atmospheric Protection/Air Quality Control/Air Pollution
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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