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Organic matter light attenuation

Natural substances (dissolved organic matter, DOM) also contribute to light absorption, and a, is used to account for light attenuation by DOM in natural water. Total light absorption in a natural water follows the relation in Equation (5) ... [Pg.381]

Light attenuation caused by dissolved organic matter in solution at wavelength X... [Pg.402]

Negligible photoreaction was observed for p,p -dichlorobenzophenone (DCB), a DDT oxidation product, in air-saturated, distilled water (half-fife >15 h at 313 nm). Nevertheless, this halocarbon photoreacted (313 nm) with half-lives corrected for light attenuation of about 3 h in a filtered natural-water sample and a solution of Contech fulvic acid (Table II). The greater than four- to fivefold enhancement in photoreaction rate in this case probably results from hydrogen atom abstraction from the natural organic matter by the DCB in its excited triplet state (eq 14). [Pg.263]

See other pages where Organic matter light attenuation is mentioned: [Pg.24]    [Pg.149]    [Pg.58]    [Pg.156]    [Pg.43]    [Pg.637]    [Pg.74]    [Pg.469]    [Pg.57]    [Pg.116]    [Pg.143]    [Pg.298]    [Pg.642]    [Pg.381]    [Pg.10]    [Pg.247]   
See also in sourсe #XX -- [ Pg.181 ]



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