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Establishment of a basis for administrative use of PestSurf

Table 4.10. Part of the result sheet generated by the PestSurf Excel template for the autumn-application of bromoxynil. The selected table shows the results at the pre-defiend location along the stream with the highest concentration recorded. The limiting values applied in the generation of the table is lowest detection value = 10 ng/l, toxicity to fish, daphnies and algae are set to 100, 1000 and 2000 ng/l, respectively. The recorded peaks are shown in Figure 4.10.
Tabel 4.10. Uddrag fra resultatoversigt genereret af PestSurf-Excelskabelonen for den efterårsudbragte bromoxynil. Den udvalgte tabel viser resultaterne på den præ-definerede lokalitet langs med åen med den højeste koncentration. Grænseværdierne anvendt i simuleringen er detektionsgrænsen = 10 ng/l, toxicitet overfor fisk, daphnier og alger er sat til hendholdsvis 100, 1000 og 2000 ng/l. De beskrevne koncentrationstoppe er vist i Figur 4.10.

ODDERBAEK 1584.119-3818.000; Chainage: 1621.059570; EumType: Concentration
Lowest Detection Concentration = 10
Year Date Event Max Conc. Values on descending limb - after Duration before max Duration total Interval to next event
  6 min 12 min 30 min 60 min 12 hours 24 hours 48 hours
ng/l ng/l ng/l ng/l ng/l ng/l ng/l ng/l Hours hours days
1998 02-11-1998 08:33:00 1 1384 1299 1215 917 343       0 2 347
1999 15-10-1999 08:33:00 2 2208 2205 2198 2112 1590       0 4 365
2000 14-10-2000 08:33:00 3 1997 1972 1938 1744 1088       0 3 367
2001 16-10-2001 09:00:00 4 2636 2626 2605 2451 1993       1 8 382
2002 02-11-2002 08:33:00 5 1344 1259 1175 876 310       0 2 347
2003 15-10-2003 08:33:00 6 2156 2150 2139 2038 1498       0 4 365
2004 14-10-2004 08:33:00 7 1950 1920 1883 1684 1033       0 3 367
2005 16-10-2005 09:00:00 8 2595 2583 2559 2396 1925       1 8  
Max     2636                 8 382
Min     1344                 2 347
Events with c > lowest effect value (fish)                    
    8                      
Events with c > lowest effect value (daphnies)                    
    8                      
Events with c > lowest effect value (algae)                    
    4                      
Fractiles                        
80%     2595 (min 5 values)             8 367
90%       (min 10 values)                
95%       (min 20 values)                

 

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Version 1.0 December 2006, © Danish Environmental Protection Agency