Fig. 6.

TEQ values in bird eggs. Data are expressed as mean with range. A) PCDD/F TEQ values according to sampling location. B) PCB TEQ values according to sampling location. Sampling locations are expressed as Barb = Barbers Pan, Bloem = Bloemhof Dam, Eldo = Eldorado Park and Potch = Potchefstroom. C) PCDD/F TEQ values according to species. D) PCB TEQ values according to species. Species are arranged according to increasing reported average egg mass. Species are expressed as RC = Reed Cormorant, CE = Cattle Egret, LE = Little Egret, GI = Glossy Ibis, AD = African Darter, BHH = Black Headed Heron, GH = Grey Heron, GWE = Great White Egret, and ASI = African Sacred Ibis. E) PCDD/F TEQ values according to habitat guilds. F) PCB TEQ according to habitat guilds. Habitat guilds as expressed as Aqua = aquatic, Wet = wetland, and Terr = terrestrial. G) PCDD/F TEQ values according to feeding guilds. H) PCB TEQ according to feeding guilds. Feeding guilds are expressed as LAP = large aquatic predators, S = scavengers, SAP = small aquatic predators, and TI = terrestrial insectivore