Organic markers of sewage contamination in surface sediments from Santos Bay, Sao Paulo

被引：42
|
作者：
Martins, Cesar de Castro [1 ]
Azeredo Gomes, Fernanda Boechat [2 ]
Ferreira, Juliana Aureliano [2 ]
Montone, Rosalinda Carmela [2 ]
机构：
[1] Univ Fed Parana, Ctr Estudios Mar, BR-83255000 Pontal Do Parana, PR, Brazil
[2] Univ Sao Paulo, Inst Oceanog, BR-05508900 Sao Paulo, Brazil
来源：
QUIMICA NOVA | 2008年 / 31卷 / 05期
关键词：
fecal sterols; sediments; Santos Bay;
D O I：
10.1590/S0100-40422008000500012
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Organic markers, such as sterols and ketones, were used to assess sewage contamination in sediments from the Santos Bay, SP. and its continental shelf. These compounds were analyzed by GC/FID after soxhlet extraction, clean up and derivatization. The concentration of coprostanol and ratios between selected sterols were Used to evaluate fecal contamination. The stations located in the mid-western part of the Santos Bay presented organic matter from sewage due to the input of fecal material from the city of Santos by submarine sewage outfall.. Stations located at the continental shelf did not present fecal contamination. Coprostanol levels in sewage outfall stations Were hi-her in comparison to other Brazilian coastal areas, except Guanabara Bay/RJ, and could be related to the fraction of the population without sewage treatment.
引用
收藏
页码：1008 / 1014
页数：7
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