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Establishment of a basis for administrative use of PestSurf

Table 3.5. Part of the result sheet generated by the PestSurf Excel sheet for the spring-application of bromoxynil. The selected table shows the point along the stream with the highest concentration recorded. Lowest detection value is set to 10 ng/l, toxicity to fish, daphnies and algae are set to 100, 1000 and 2000 ng/, respectively. The recorded peaks are shown in Figure 3.11.
Tabel 3.5. Uddrag af resultatpresentationen genereret af PestSurf-Excel-arket for forårsudbragt bromoxynil. Den udvalgte tabel viser det fordefinerede punkt langs med åen med højest koncentration. Detektionsgrænsen er sat til 10 mens toxicitetsværdierne for fisk, dafnier og alger er henholdsvis 100, 1000 og 2000 ng/l. De tabellerede hændelserne er vist i Figur 3.11.

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 07-04-1998 08:33:00 1 1362 1342 1317 1176 745       0 3 360
1999 02-04-1999 08:33:00 2 1120 1066 1013 823 401       0 2 365
2000 01-04-2000 08:33:00 3 1497 1490 1478 1385 992       0 4 365
2001 01-04-2001 08:33:00 4 1500 1495 1487 1408 1036       0 4 371
2002 07-04-2002 08:33:00 5 1291 1262 1226 1066 630       0 3 360
2003 02-04-2003 08:33:00 6 1091 1036 981 789 369       0 2 365
2004 01-04-2004 08:33:00 7 1468 1459 1445 1345 947       0 4 365
2005 01-04-2005 08:33:00 8 1483 1478 1468 1387 1012       0 4  
Max     1500                 4 371
Min     1091                 2 360
Events with c > lowest effect value (fish)                    
    8                      
Events with c > lowest effect value (daphnies)                    
    8                      
Events with c > lowest effect value (algae)                    
    00                      
Fractiles                        
80%     1497 (min 5 values)             4 365
90%       (min 10 values)                
95%       (min 20 values)                

 

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Version 1.0 December 2006, © Danish Environmental Protection Agency