Pesticides Research No. 104 2006 – Establishment of a basis for administrative use of PestSurf

Establishment of a basis for administrative use of PestSurf

Table 1.9. Part of the result sheet generated by the PestSurf Excel sheet for the upstream part of the sandy loam catchment. 10 events above 1 ng/l are recorded, all with a very short duration. Toxicity to fish, daphnies and algae are 10, 100 and 1000 ng/, respectively. The peaks are shown in Figure 1.22.
Tabel 1.9. Uddrag af resultatpresentationen genereret af PestSurf-Excel-arket for den opstrøms del af morænelersoplandet. 10 hændelser over 1 ng/l er registreret, alle af kort varighed. Toxicitetsværdierne for fisk, dafnier og alger er henholdsvis 10, 100 og 1000 ng/l. Hændelserne er vist i Figur 1.22.

OVRELILLEBAEK 960.000-1700.000; Chainage: 1650.000000; EumType: Concentration
Lowest Detection Concentration = 1
Year	Date	Event	Max Conc.	Values on descending limb - after							Duration before max	Duration total	Interval to next event
			Max Conc.	6 min	12 min	30 min	60 min	12 hours	24 hours	48 hours	Duration before max	Duration total	Interval to next event
			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	246	194	150	90	66				0	6	365
1995	01-06-1995 08:30:00	2	373	322	268	117	109				0	7	366
1996	01-06-1996 08:30:00	3	512	505	489	377	117	2	1	1	0	82	365
1997	01-06-1997 08:30:00	4	396	351	301	139	97				0	9	364
1998	31-05-1998 08:30:00	5	247	195	150	90	66				0	6	365
1999	31-05-1999 08:30:00	6	373	323	269	117	110				0	7	366
2000	31-05-2000 08:30:00	7	513	506	491	379	117	2	1	1	0	96	365
2001	31-05-2001 08:30:00	8	397	351	302	139	97				0	9
Max			513									96	366
Min			246									6	364
Events with c > lowest effect value (fish)
		8
Events with c > lowest effect value (daphnies)
		8
Events with c > lowest effect value (algae)
		0
Fractiles
80%			512	(min 5 values)								82	366
90%				(min 10 values)
95%				(min 20 values)