INFLUENCE OF HUMIC SUBSTANCES ON PHOTOLYSIS OF DIVALENT MERCURY IN AQUEOUS-SOLUTION

Authors
XIAO ZF STROMBERG D LINDQVIST O
Citation
Zf. Xiao et al., INFLUENCE OF HUMIC SUBSTANCES ON PHOTOLYSIS OF DIVALENT MERCURY IN AQUEOUS-SOLUTION, Water, air and soil pollution, 80(1-4), 1995, pp. 789-798
Citations number
19
Categorie Soggetti
Environmental Sciences","Water Resources
Journal title
Water, air and soil pollution → ACNP
ISSN journal
00496979
Volume
80
Issue
1-4
Year of publication
1995
Pages
789 - 798
Database
ISI
SICI code
0049-6979(1995)80:1-4<789:IOHSOP>2.0.ZU;2-D
Abstract
Mercury (II) solutions were irradiated by a simulated sunlight in the presence of humic acid (HA) or fulvic acid (FA). Results show that, un der the experimental conditions and the FA and HA chosen, less than 20 % of the Hg in solution was photolysed with a rate of (1.63 +/- 0.29) x 10(2) s(-1) (n=23) and the rest of (2.38 +/- 0.40) X 10(-4) s(-1) (n =23) depending on the substitutes of humic substances to which Hg were bond The sunlight photolysis lifetimes were estimated to be 4 and 250 sunlight hours respectively under summer conditions at Stockholm lati tude.