Photochemical Formation of volatile mercury in high Arctic lakes

Autor:	Greg Mierle, D. R. S. Lean, Marc Amyot
Rok vydání:	1997
Předmět:	MERCURE Volatilisation Health Toxicology and Mutagenesis Aquatic ecosystem chemistry.chemical_element Mercury (element) chemistry.chemical_compound chemistry Arctic Environmental chemistry Environmental Chemistry Water pollution Hydrogen peroxide Surface water
Zdroj:	Environmental Toxicology and Chemistry. 16:2054-2063
ISSN:	1552-8618 0730-7268
DOI:	10.1002/etc.5620161010
Popis:	Formation rates of dissolved gaseous mercury (DGM were measured in three high (74 °N) Arctic lakes and one wetland. The rate of formation of DGM was controlled by (1) the intensity of solar radiation, particularly ultraviolet-B (280–320 nm) and ultraviolet-A (320–400 nm) wavebands and (2) the concentration of available photoreducible Hg(II) complexes. Additions of hydrogen peroxide and of fulvic acids did not enhance DGM formation rates in our experiments. This study illustrates that photoreduction of mercury occurs in a wide range of aquatic systems even in the high arctic where radiation levels are lower but continue for the entire day during the summer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2d0425da69a0ebd72dd7b88c50feca8d https://doi.org/10.1002/etc.5620161010 Zobrazit plný text záznamu Plný text