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

Establishment of a basis for administrative use of PestSurf

Table 12.4. Part of the result sheet generated by the PestSurf Excel sheet. The selected table shows the point along the stream with the highest concentration recorded. The lowest detection value is 0.05 ng/l, toxicity to fish, daphnies and algae are set to 2, 10 and 20 ng/, respectively. The recorded peaks are shown in Figure 12.8.
Tabel 12.4. 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 0.05 ng/l mens toxicitetsværdierne for fisk, dafnier og alger er henholdsvis 2, 10 og 20 ng/l. De tabellerede hændelser er vist i Figur 12.8.

ODDERBAEK 1584.119-3818.000; Chainage: 1621.059570; EumType: Concentration
Lowest Detection Concentration = 0.05

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
1998	07-04-1998 08:33:00	1	170	167	164	146	92				0	9	360
1999	02-04-1999 08:33:00	2	140	133	126	102	50				0	6	365
2000	01-04-2000 08:33:00	3	187	186	184	172	123				0	10	365
2001	01-04-2001 08:33:00	4	187	187	185	175	129				0	10	371
2002	07-04-2002 08:33:00	5	161	157	153	132	78				0	8	360
2003	02-04-2003 08:33:00	6	136	129	122	98	46				0	6	365
2004	01-04-2004 08:33:00	7	183	182	180	168	118				0	9	365
2005	01-04-2005 08:33:00	8	185	184	183	173	126				0	10
Max			187									10	371
Min			136									6	360
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%			187	(min 5 values)								10	365
90%				(min 10 values)
95%				(min 20 values)