IMPACT OF SPAWNING SALMON ON PROTEIN AND AMINO ACID LEVELS AND DBP FORMATION POTENTIAL IN AN ARCTIC RIVER

摘要

In the course of constructing new sanitation facilities for a remote Alaskan community,problems were noted with the potential of their water source, the Inmatchuk River, to formdisinfection by-products (DBPs). In the course of the investigation, it was discovered that theriver was also a significant salmon spawning river in the area. Based on this, work wasundertaken to determine the impact of the returning salmon on the organic content of the waterand determine if this source of organic material was impacting the DBP problem. Results of thisstudy showed that the returning salmon cause the organic content of the water to more thandouble during the return. In addition, the products from the decay of the fish do have asignificant impact on DBP formation, particularly haloacetic acids. The study results indicatethat, for this organic source, protein levels in the water provided a better correlation to DBPformation than either DOC or SUVA. Results also showed that the products from salmon decayreduce SUVA while increasing DBP formation potential.