I know that these parmeters depend on many factors (TOC, water source, also suspended matter can add some to OD spectra) . But maybe there is a kind of review where both D254 and color (in Pt-Co scale) are present for rivers waters?
It is the optical density at 254 nm it serves as an indicator for the presence of organic pollution (actually pollutants having an aromatic ring-based molecular structure.
I am interested in this subject but to my knowledge there is no compilation
However the first article that makes reference is the following one and that is always interesting but only in French
chrome-extension://ecnphlgnajanjnkcmbpancdjoidceilk/content/web/viewer.html?source=extension_pdfhandler&file=https%3A%2F%2Fwww.shf-lhb.org%2Farticles%2Flhb%2Fpdf%2F1987%2F03%2Flhb1987029.pdf
It is the optical density at 254 nm it serves as an indicator for the presence of organic pollution (actually pollutants having an aromatic ring-based molecular structure.
I am interested in this subject but to my knowledge there is no compilation
However the first article that makes reference is the following one and that is always interesting but only in French
chrome-extension://ecnphlgnajanjnkcmbpancdjoidceilk/content/web/viewer.html?source=extension_pdfhandler&file=https%3A%2F%2Fwww.shf-lhb.org%2Farticles%2Flhb%2Fpdf%2F1987%2F03%2Flhb1987029.pdf
Thanx, Hakim. I do not know French but here in the paper there are D254 and D546. The wavelength 546nm is closer to determination of turbidity, not color. Maybe i could find works of these researchers in english.
Organic matters in the water having unsaturated bond show absorption of ultraviolet region so measurement of absorbance at the wavelength of 250 to 260 nm can be used for evaluating status of organic contamination of source water or performance of water treatment in the water purification process.
Among the indexes that indicate amounts of organic matters in the water are; biochemical oxygen demand (BOD), chemical oxygen demand (COD), consumption of potassium permanganate, total organic carbon (TOC), and so on. BOD and COD are used against organic matters that can be expressed with oxygen consumption, while BOD is used for decomposable substances and COD for biodegradable persistent substances.
Also, E260/DOC (dissolved organic carbon) ratio is suggested as an index for indicating the component of organic matters. It is possible to evaluate the treatment performance of purification of organic matters by means of the ratio of unsaturated organic matters and molecular weight.
You can use KHP as a standard solution to estimate your data.
Hope this file useful for you
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