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Establishment of a basis for administrative use of PestSurf

Table 9.4. Part of the result sheet generated by the PestSurf Excel sheet. The selected table shows the pre-defined point along the stream with the highest concentration recorded. The lowest detection value is 10 ng/l, toxicity to fish, daphnies and algae are set to 100, 1000 and 10000 ng/, respectively. The recorded peaks are shown in Figure 9.9.
Tabel 9.4. Uddrag af resultatpresentationen genereret af PestSurf-Excel-arket. Den udvalgte tabel viser det fordefinerede punkt langs med åen med højest koncentration. Detektionsgrænsen er sat til 10 ng/l mens toxicitetsværdierne for fisk, dafnier og alger er henholdsvis 100, 1000 og 10000 ng/l. De tabellerede hændelser er vist i Figur 9.9.

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 01-10-1998 08:42:00 1 36709 36635 36593 36478 34948 1442 1232 1203 0 179 379
1999 15-10-1999 08:33:00 2 29433 29415 29347 28250 21397 423 430 446 0 173 353
2000 02-10-2000 09:00:00 3 36483 36434 36219 34291 27860 833 756 757 1 170 358
2001 25-09-2001 08:42:00 4 37316 37156 37036 36860 35994 906 26 17 0 408 371
2002 01-10-2002 09:09:00 5 35458 35274 34986 33327 28569 1000 971 949 1 176 379
2003 15-10-2003 08:33:00 6 28743 28678 28560 27267 20163 400 407 422 0 172 353
2004 02-10-2004 09:00:00 7 35762 35679 35426 33357 26749 808 735 731 1 170 358
2005 25-09-2005 08:42:00 8 36841 36674 36553 36385 35447 712 22 17 0 402  
Max     37316                 408 379
Min     28743                 170 353
Events with c > lowest effect value (fish)                    
    8                      
Events with c > lowest effect value (daphnies)                    
    8                      
Events with c > lowest effect value (algae)                    
    8                      
Fractiles                        
80%     36841 (min 5 values)             402 379
90%       (min 10 values)                
95%       (min 20 values)                

 

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Version 1.0 December 2006, © Danish Environmental Protection Agency