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Establishment of a basis for administrative use of PestSurf

Table 1.10. Part of the results generated by the PestSurf Excel sheet for the downstream part of the sandy loam catchment. The limiting value applied in the simulation is 20 ng/l, toxicity to fish, daphnies and algae are set to 50, 100 and 1000 ng/, respectively. The peaks are shown in Figure 1.23.
Tabel 1.10. Uddrag af resultatpresentationen genereret af PestSurf-Excel-arket for den nedstrøms del af morænelersoplandet. Den afgrænsende værdi anvendt i simuleringen er 20 ng/l, toxicitetsværdierne for fisk, dafnier og alger er henholdsvis 50, 100 og 1000 ng/l. Hændelserne er vist i Figur 1.22.

NEDRELILLEBAEK 909.000-1540.000; Chainage: 1279.000000; EumType: Concentration
Lowest Detection Concentration = 20
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
1994 01-06-1994 08:30:00 1 614 497 382 174 199       0 3 365
1995 01-06-1995 08:30:00 2 1002 879 740 333 165       0 4 366
1996 01-06-1996 08:40:00 3 1331 1272 1198 855 356       0 8 365
1997 01-06-1997 08:30:00 4 1154 1042 902 412 220       0 5 79
  18-08-1997 00:00:00 5 25 25 25 25 25 25 25 24 264 456 10
  28-08-1997 00:00:00 6 28 28 28 28 28 26 23 27 0 960 51
  18-10-1997 00:00:00 7 21 21 21 21 21 20   20 24 24 14
  01-11-1997 00:00:00 8 26 26 26 26 26 25 24 23 288 432 210
1998 31-05-1998 08:30:00 9 627 510 395 186 213       0 3 61
  31-07-1998 00:00:00 10 20 20 20 20 20     20 0 0 19
  19-08-1998 00:00:00 11 44 44 44 44 44 43 41 40 408 624 12
  31-08-1998 00:00:00 12 25 25 25 25 25 23   25 24 24 2
  02-09-1998 00:00:00 13 25 25 25 25 24       0 0 54
  26-10-1998 00:00:00 14 34 34 34 34 34 30 26 25 792 864 17
  12-11-1998 00:00:00 15 23 23 23 23 23 22 22   96 120 66
1999 17-01-1999 00:00:00 16 22 22 22 21 21       24 24 26
  12-02-1999 00:00:00 17 20 20 20 20 20       0 0 32
  16-03-1999 00:00:00 18 21 21 21 21 21       0 0 16
  01-04-1999 00:00:00 19 23 23 23 23 23 23 23 23 168 240 16
  17-04-1999 00:00:00 20 27 27 27 27 26 21     264 264 44
  31-05-1999 08:30:00 21 1038 915 776 368 200 34 39 39 992 7824 294
2000 20-03-2000 00:00:00 22 30 30 30 30 30 29 27 20 168 216 72
  31-05-2000 08:40:00 23 1355 1296 1223 880 380 29 29 28 1616 6240 250
2001 05-02-2001 00:00:00 24 44 44 44 44 44 43 43 41 1320 1608 115
  31-05-2001 08:30:00 25 1197 1085 945 454 262 51 53 51 2432 7536  
Max     1355                 7824 366
Min     20                 0 2
Events with c > lowest effect value (fish)                    
    8                      
Events with c > lowest effect value (daphnies)                    
    8                      
Events with c > lowest effect value (algae)                    
    6                      
Fractiles                        
80%     1002 (min 5 values)             864 210
90%     1197 (min 10 values)             6240 365
95%     1331 (min 20 values)             7536 365

 

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Version 1.0 December 2006, © Danish Environmental Protection Agency