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Establishment of a basis for administrative use of PestSurf

Table 7.15. Part of the result sheet generated by the Pestsurf Excel sheet for the upstream part of the sandy loam catchment for the autumn application of pendimethalin. The limiting values is set to 25 ng/l, toxicity to fish, daphnies and algae are set to 50, 100 and 1000 ng/, respectively. The recorded peaks are shown in Figure 7.44. Tabel 7.15. Uddrag af resultatpresentationen genereret af PestSurf-Excel-arket for den opstrøms del af morænelersoplandet for efterårsudbragt pendimethalin. Detektionsgrænsen for tabelgenerering er sat til 25 ng/l. Toxicitetsværdierne for fisk, dafnier og alger er henholdsvis 50, 100 og 1000 ng/l. Hændelserne er vist i Figur 7.44.

OVRELILLEBAEK 960.000-1700.000; Chainage: 1650.000000; EumType: Concentration
Lowest Detection Concentration = 25
 
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 20-09-1994 08:30:00 1 13719 11334 9371 7584 1368       0 6 99
27-12-1994 00:00:00 2 26 26 26 26 26       0 0 12
1995 08-01-1995 00:00:00 3 52 52 52 51 51 38   50 192 192 9
17-01-1995 00:00:00 4 53 53 53 53 52 39   55 168 168 2
19-01-1995 00:00:00 5 55 55 54 54 54 46 37 31 0 72 7
26-01-1995 00:00:00 6 146 145 145 144 142 99 52 57 48 144 236
20-09-1995 08:30:00 7 55936 54468 51632 31546 10991 1435 333 146 5528 15552 731
1997 20-09-1997 08:40:00 8 59216 55268 50443 28090 11276 2053 410 112 7472 7919 27
17-10-1997 18:00:00 9 313 313 312 312 310 279 279 238 205 8155 1433
2001 19-09-2001 08:40:00 10 59218 55275 50459 28181 11469 2136 483 167 26384 28848  
Max     59218                 28848 1433
Min     26                 0 2
Events with c > lowest effect value (fish)                    
    9                      
Events with c > lowest effect value (daphnies)                    
    6                      
Events with c > lowest effect value (algae)                    
    4                      
Fractiles                        
80%     55936 (min 5 values)             8155 236
90%     59216 (min 10 values)             15552 731
95%       (min 20 values)                

 

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Version 1.0 December 2006, © Danish Environmental Protection Agency