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Establishment of a basis for administrative use of PestSurf

Table 12.6. Part of the result sheet generated by the PestSurf Excel sheet, applied to Tribenuron methyl. The limiting value used for generation of the table is 25 ng/l. The toxicity values were set to 50,100 and 1000 ng/l, respectively. The recorded peaks are shown in Figure 12.13.
Tabel 12.6. Uddrag af resultatpresentationen genereret af PestSurf-Excel-arket. Grænseværdien anvendt til tabelgenerering er sat til 25 ng/l mens toxicitetsværdierne for fisk, dafnier og alger er henholdsvis 50, 100 og 1000 ng/l. De tabellerede hændelser er vist i Figur 12.13.

ODDER_POND 0.000-68.000; Chainage: 20.000000; 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
1998 19-04-1998 16:00:00 1 278 278 278 278 277 276 273 272 102 1430 185
20-10-1998 00:00:00 2 98 98 98 98 98 95 93 90 168 1296 56
15-12-1998 00:00:00 3 27 27 27 27 27 26 26   48 72 124
1999 19-04-1999 06:00:00 4 289 289 289 288 288 287 284 276 120 3162 153
18-09-1999 00:00:00 5 32 32 32 32 32 32 32 32 576 768 76
03-12-1999 00:00:00 6 34 34 34 34 34 34 33 32 24 240 867
2002 19-04-2002 16:00:00 7 278 278 278 278 277 276 273 272 102 1430 157
23-09-2002 00:00:00 8 27 27 27 27 27 27 27 26 72 168 28
21-10-2002 00:00:00 9 110 110 110 110 110 107 104 100 192 1680 69
29-12-2002 00:00:00 10 29 29 29 29 29 29 28 28 96 192 9
2003 07-01-2003 00:00:00 11 26 26 26 26 26 26 26 25 24 72 102
19-04-2003 06:00:00 12 289 289 289 289 289 287 284 276 120 3978 229
03-12-2003 00:00:00 13 36 36 36 36 36 35 35 34 48 312  
Max     289                 3978 867
Min     26                 72 9
Events with c > lowest effect value (fish)                    
    6                      
Events with c > lowest effect value (daphnies)                    
    5                      
Events with c > lowest effect value (algae)                    
    0                      
Fractiles                        
80%     278 (min 5 values)             1680 185
90%     289 (min 10 values)             3162 229
95%       (min 20 values)                

 

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Version 1.0 December 2006, © Danish Environmental Protection Agency