Ohlendorf H M, Elder J B, Stendell R C, Hensler G L, Johnson R W
Pestic Monit J. 1979 Dec;13(3):115-9.
Chicks of great blue herons (Ardea herodias) from four heronaries located near South St. Paul, Royalton, and Wabasha, Minnesota, and La Crosse, Wisconsin, were analyzed for organochlorines, Highest mean wet-weight concentrations, 6.43 ppm PCBs. 1.31 ppm DDE, and 1.90 ppm sigma DDT, were found in the South St. Paul chicks. Among chicks from the other three heronries, most levels were similar, but were significantly lower than levels in South St. Paul chicks. Lowest mean organochlorine levels, 0.37 ppm DDE, 0.38 ppm sigma DDT, and 0.22 ppm PCBs, were found in chicks from Royalton. All birds from South St. Paul and La Crosse contained residues of DDT and TDE whereas only one of the 10 birds from Royalton contained DDT and one contained TDE residues. Five of the 12 birds from Wabasha contained DDT; eight contained TDE. Except for PCB residues in La Crosse heron chicks, the rate of organochlorine residue accumulation in the birds was generally less than the rate of dilution caused by growth.
对来自明尼苏达州南圣保罗、罗亚尔顿和瓦巴沙附近以及威斯康星州拉克罗斯的四个鹭巢中美洲大白鹭（苍鹭）的雏鸟进行了有机氯分析。在南圣保罗的雏鸟中发现了最高的平均湿重浓度，多氯联苯为6.43 ppm，滴滴伊为1.31 ppm，总滴滴涕为1.90 ppm。在其他三个鹭巢的雏鸟中，大多数水平相似，但明显低于南圣保罗雏鸟的水平。在罗亚尔顿的雏鸟中发现了最低的平均有机氯水平，滴滴伊为0.37 ppm，总滴滴涕为0.38 ppm，多氯联苯为0.22 ppm。来自南圣保罗和拉克罗斯的所有鸟类都含有滴滴涕和双对氯苯基三氯乙烷的残留，而来自罗亚尔顿的10只鸟中只有一只含有滴滴涕残留，一只含有双对氯苯基三氯乙烷残留。来自瓦巴沙的12只鸟中有5只含有滴滴涕；8只含有双对氯苯基三氯乙烷。除了拉克罗斯鹭雏鸟中的多氯联苯残留外，鸟类体内有机氯残留的积累速度通常低于生长引起的稀释速度。
