Table 1. Number of Data Records before and after Truncation of the Collected Data, According to the Four Criteria as Described in the Text (Relating to the Number of Species and TLs, the Number of Water/Zooplankton Data and the Amount of Censored Data) and the Presence of Sufficient Trophic Position Data.

	initial dataset	#1 water criterion	+ #2 detection limit criterion	+ #3 species concentration data criterion	+ #4 species TL data criterion
number of data records	18 318	16 548	16 548	16 531	10 044
number of compounds	173	91	91	90	22
number of compound groups	9	8	8	8	6
number of species	67	66	66	66	63
number of articles	50	49	49	49	44