Ottawa River mercury

River water Canada, Ottawa River Total mercury 4.6-9.8 12... [Pg.361]

A detailed study of mercury in a 3-mile (4.9-km) section of the Ottawa River (Kudo, 1983), represents... [Pg.345]

Kudo and Hart (197i+) reTOrted mercury uptake by Ottawa River bottom sediments which included wood chips, clay and sand. Their... [Pg.177]

Studies conducted by Kudo, et al. (1975) on factors controlling mercury desorption fran Ottawa River bed sediments indicated total mercury availability is dependent on the Eh of the aqueous system and also on the total depth (volume) of mercury contaminated bed sediments. More mercury was desorbed under anaerobic conditions and cilso at higher sediment volumes. [Pg.178]

Lack of isotopic exchange between organic and inorganic mercury derivatives in the Ottawa River sediments suggests that the changes in relative amounts arise from specific alkylation or dealkylation reactions. The methylation of lead ions in rivers by bacterial agency has been confirmed. ... [Pg.444]

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