1983: Karratha – Pesticide residue in birds. Pesticide: Dieldrin

Miscellaneous residue levels in birds

Several samples of different species of birds, and eggs, from a wide range of localities were collected and analysed during the early to mid 1970ā€™s. Samples ranged from Ospreys at Shark Bay to Owls at Manurah. Almost all samples contained low levels of organochlorine insecticides, up to a maximum of 60 mg/kg of DDT in an Owl from Lake Argyle and 14 mg/kg of dieldrin in a Mudlark from Karratha (this sample taken in 1983).

P42 Monitoring Pesticides ā€“ A Review. A Report to the Environmental Protection Authority by Peter A Rutherford. December 1989