caa a22 4500 467902445 CHVBK 20180406152822.0 cr unu---uuuuu 170328e20060501xx s 000 0 eng 10.1007/s10661-006-7374-2 doi (NATIONALLICENCE)springer-10.1007/s10661-006-7374-2 Influence of High Levels of Total Suspended Solids on Measurement of Cod and Bod in the Yellow River, China [Elektronische Daten] [Chen Jingsheng, Yu Tao, Edwin Ongley] Using the Yellow River, China, the study explores the problem of the use of COD and BOD5 as water quality management parameters in the presence of very high levels of suspended sediment (TSS) that characterize this river. Although the amount of natural organic matter per unit of suspended sediment of the Yellow River is not high, the very high concentration of mineral sediment in the Yellow River results in a large concentration of organic matter, which artificially inflates the laboratory values of COD and, as a consequent, leads to greatly exaggerated reports of pollution of the Yellow River. BOD5 can more accurately reflect the pollution of the Yellow River than COD; however, measured values of BOD under-report the actual values due to settling of the sediment in the incubation chamber resulting in values that are 21.6--38.3% less than the actual values. Therefore corrections are required for laboratory COD and BOD values so that the values are not artifacts of the sediment regime. Our work provides new insight into this phenomenon and demonstrates how correction factors may be determined and used with pollution data. Our work also suggests that the actual pollution levels of the Yellow River are probably not as high as reported by monitoring agencies. Springer Science + Business Media, Inc., 2006 BOD nationallicence COD nationallicence oxygen-consumption nationallicence suspended sediment nationallicence water pollution nationallicence water quality assessment nationallicence Yellow River nationallicence Jingsheng Chen College of Environmental Sciences, Peking University, 100871, Beijing, P.R. China aut Tao Yu College of Environmental Sciences, Peking University, 100871, Beijing, P.R. China aut Ongley Edwin Emeritus Scientist, Environment Canada, 4951 Connaught Ave., H4V1X4, Montreal, QC, Canada aut Environmental Monitoring and Assessment Kluwer Academic Publishers 116/1-3(2006-05-01), 321-334 0167-6369 116:1-3<321 2006 116 10661 https://doi.org/10.1007/s10661-006-7374-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-7374-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jingsheng Chen College of Environmental Sciences, Peking University, 100871, Beijing, P.R. China aut NATIONALLICENCE 700 1- Tao Yu College of Environmental Sciences, Peking University, 100871, Beijing, P.R. China aut NATIONALLICENCE 700 1- Ongley Edwin Emeritus Scientist, Environment Canada, 4951 Connaught Ave., H4V1X4, Montreal, QC, Canada aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 116/1-3(2006-05-01), 321-334 0167-6369 116:1-3<321 2006 116 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer