Degradation of monomethylmercury chloride by hydroxyl radicals in simulated natural waters

Water Research

Volumn 37, Issue 10, 2003, Pages 2496-2504

  Chen, Jing ^a   Pehkonen, Simo O ^a   Lin, Che Jen ^b  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

^b Lamar University   (United States)

Author keywords

Degradation; Formaldehyde; Mechanisms; Methylmercury; Natural waters; OH radical

Indexed keywords

DEGRADATION; FREE RADICALS; PHOTOLYSIS; RATE CONSTANTS; SURFACE WATERS;

SPECIATION;

MERCURY COMPOUNDS;

BENZOIC ACID; FORMALDEHYDE; HYDROXYL RADICAL; METHYLMERCURIC CHLORIDE; METHYLMERCURY; SCAVENGER; SURFACE WATER; WATER;

DEGRADATION; FORMALDEHYDE; HYDROXYL RADICAL; METHYLMERCURY; SURFACE WATER;

AQUEOUS SOLUTION; ARTICLE; CALCULATION; CONCENTRATION RESPONSE; IRRADIATION; PH; PHOTODEGRADATION; PHOTOLYSIS; PRIORITY JOURNAL; ROOM TEMPERATURE; STIMULATION;

EID: 0037404689     PISSN: 00431354     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0043-1354(03)00039-3     Document Type: Article

References (26)

1. Lin C-.J., Pehkonen S.O. Aqueous free radical chemistry of mercury in the presence of iron oxides and ambient aerosol. Atmos Environ. 31:1997;4125-4137.
2. Lin C-.J., Pehkonen S.O. Aqueous phase reactions of mercury with free radicals and chlorine. implications for atmospheric mercury chemistry Chemosphere. 38:1999;1253-1263.
3. Mason R.P., Fitzgerald W.F., Morel F.M.M. The biogeochemical cycling of elemental mercury - anthropogenic influences Geochim. Cosmochim Acta. 58:1994;3191-3198.
4. Stephens G.R. Mercury concentrations in fish in a remote Canadian arctic lake. Water Air Soil Pollut. 80:1995;633-636.
5. Farrell R.E., Huang P.M., Germida J.J. Biomethylation of mercury(II) adsorbed on mineral colloids common in freshwater sediments. Appl Organomet Chem. 12:1998;613-620.
6. Ikingura J.R., Akagi H. Methylmercury production and distribution in aquatic systems. Sci Total Environ. 234:1999;109-118.
7. Lee Y.H., Hultberg H., Andersson I. Catalytic effect of various metal ions on the methylation of mercury in the presence of humic substances. Water Air Soil Pollut. 25:1985;389-399.
8. Jackson T.A. Biological and environmental-control of mercury accumulation by fish in lakes and reservoirs of northern Manitoba, Canada. Can J Fish Aquat Sci. 48:1991;2449-2456.
9. Winer J.G., Stokes P.M. Environ Toxicol Chem. 9:1991;821-831.
10. Girard M., Dumont C. Exposure of James Bay Creek to methylmercury during pregnancy for the years 1983-1991. Water Air Soil Pollut. 80:1995;13-19.
11. Suda I., Suda M., Hirayama K. Degradation of methyl and ethyl mercury by singlet oxygen generated from seawater exposed to sunlight or ultraviolet-light arc. Toxicology. 67:1993;365-368.
12. Sellers P., Kelly C.A., Rudd J.W.M., MacHutchon A.R. Photodegradation of methylmercury in lakes. Nature. 380:1996;694-697.
13. Inoko M. Studies on the photochemical degradation of organomercurials - methylmercury(II) chloride. Environ Pollut Ser B. 2:1981;3-10.
14. Nriagu J.O. Mechanistic steps in the photoreduction of mercury in natural-waters. Sci Total Environ. 154:1994;1-8.
15. Zepp R.G., Hoigne J., Bader H. Nitrate-induced photooxidation of trace organic chemicals in water. Environ Sci Technol. 21:1987;443-450.
16. APHA, AWWA and WEF. Standard methods for the examination of water and wastewater, 16th ed. 1985. p. 232-4.
17. Fatemian E., Allibone J., Walker P.J. Use of gold as a routine and long term preservative for mercury in potable water, as determined by ICP-MS. Analyst. 124:1999;1233-1236.
18. Susic M., Alongi D.M. Determination of terrestrial markers in marine environments by GC-MS detection compared to HPLC-fluorescence detection. J Chromatogr A. 758:1997;243-254.
19. Smith R.V., Erhardt P.W. Nash determination of formaldehyde. Anal Chem. 47:1975;2462-2464.
20. Jankowski J.J., Kieber D.J., Mopper K. Nitrate and nitrite ultraviolet actinometers. Photochem Photobiol. 70:1999;319-328.
21. Oum K.W., Lakin M.J., Dehaan D.O., Brauers T., Finlayson-Pitts B.J. Formation of molecular chlorine from the photolysis of ozone and aqueous sea-salt particles. Science. 279:1998;74-77.
22. ·O-) in aqueous-solution. J Phys Chem Ref Data. 17:1988;513-780.
23. Hoigne J, Bader H. In: Brinckman, FE, Bellama, editors. Organometals and organo-metalloids. Occurrence and fate in the environment. ACS Symposium Series 82, Washington, DC: American Chemical Society, 1978. p. 292-313.
24. Mopper K., Zhou X.L. Hydroxyl radical photoproduction in the sea and its potential impact on marine processes. Science. 250:1990;661-666.
25. Haag WR, Mill T. Effects of solar ultraviolet radiation on biogeochemical dynamics in aquatic environments. In: Blough NV, Zepp RG, editors. WHOI Technical Report, WHOI-90-09, Woods Hole, MA, 1999. p. 82-88.
26. Brezonik P.L., Fulkerson-Brekken J. Nitrate-induced photolysis in natural waters. controls on concentrations of hydroxyl radical photo-intermediates by natural scavenging agents Environ Sci Technol. 32:1998;3004-3010.