Frank R, Thomas R L, Holdrinet M, Kemp A L, Braun H E, Dawson R
Sci Total Environ. 1979 Oct;13(2):101-17. doi: 10.1016/0048-9697(79)90065-2.
Surficial and core sediments were collected from the main body of Lake Huron in 1969 and Georgian Bay and North Channel in 1973. These were analysed for organochlorine insecticides and PCB. Residues of organochlorines were higher in the twelve depositional basins in Lake Huron and Georgian Bay than in sediment in the non-depositional zones. PCB was present at similar concentrations to sigma DDT; with mean levels of 13 and 10 ng/g for PCB and sigma DDT in the main body of Lake Huron and 11 and 5 ng/g for PCB and sibma DDT in Georgian Bay. Residues of PCB varied from 9--33 ng/g in the 12 basins. With respect to sigma DDT, both parent DDT and its two metabolites were present in sediment at a mean residue of 7.8 ng/g for the whole lake. The main lake had residues of 10.2 ng/g while Georgian Bay had 5.8 ng/g and North Channel 4.1 ng/g in keeping with use pattenrs since 1943. HEOD was present in only 5.7% of sediment samples from main Lake Huron, 30% from Georgian Bay and 15% from North Channel. The highest residues 1.7 ng/g occurred in the North Channel. No chlordane was detected, however, heptachlor epoxide was identified in 8.5% of sediments collected in Lake Huron, 23% from Georgian Bay and 14% in North Channel. Endosulfan appeared in 4% of samples from both Georgian Bay and North Channel.
1969年从休伦湖主体采集了表层和岩芯沉积物，1973年从乔治亚湾和北通道采集了沉积物。对这些沉积物进行了有机氯杀虫剂和多氯联苯分析。休伦湖和乔治亚湾的12个沉积盆地中有机氯的残留量高于非沉积区的沉积物。多氯联苯的浓度与总滴滴涕相似；休伦湖主体中多氯联苯和总滴滴涕的平均含量分别为13和10纳克/克，乔治亚湾中多氯联苯和总滴滴涕的平均含量分别为11和5纳克/克。12个盆地中多氯联苯的残留量在9 - 33纳克/克之间。就总滴滴涕而言，沉积物中同时存在母体滴滴涕及其两种代谢物，整个湖泊的平均残留量为7.8纳克/克。主湖的残留量为10.2纳克/克，而乔治亚湾为5.8纳克/克，北通道为4.1纳克/克，这与1943年以来的使用模式相符。仅在休伦湖主体5.7%的沉积物样本、乔治亚湾30%的沉积物样本和北通道15%的沉积物样本中检测到六氯苯。北通道的最高残留量为1.7纳克/克。未检测到氯丹，然而，在休伦湖采集的8.5%的沉积物、乔治亚湾23%的沉积物和北通道14%的沉积物中鉴定出七氯环氧化物。在乔治亚湾和北通道4%的样本中出现了硫丹。
