PRESENCE OF ORGANIC POLLUTANTS IN THE SÃO FRANCISCO RIVER AND ITS COMPARTMENTS
There has been great concern about the presence of organic pollutants in the environment. These types of compounds can be found in different types of habitats and have long term and deleterious effects on all living beings. The main objective of this study was to verify the presence of organic pollutants in different compartments of the São Francisco river. Fourteen sites were sampled since right after its springs till marginal lagoons in Pirapora City. The fine sediment was subject to the soxhlet extraction. The extracts were measured in a spectrophotometer in the absorbance range of 589 nm, which correspond to a yellow spectrum that correspond to the extraction of the organic pollutants. The organic matter of the sediments was measured. There was a positive correlation between organic matter content and the absorbance in the yellow color. However, both organic matter content and absorbance did not correlate with the distance from the spring. Even though was not possible to measure which organic pollutants were present in the sediments of the different compartments of the São Francisco river, the results of this study clear indicates the presence of these compounds in the samples. The correlation of the organic matter content and the absorbance showed that the organic matter is a important constituent in the sequestration of the organic pollutants. More studies should be conducted to determine which types of compounds are present in these sediments and if there is transfer of these organic pollutants in the aquatic food chain.
Copyright Transfer Statement
The copyright to this article is transferred to Sociedade Brasileira de Geoquímica effective if and when the article is accepted for publication. The author(s) warrant(s) that his/her/their contribution is original and that he/she/they has/have full power to make this grant. The author(s) sign(s) for and accept(s) responsibility for releasing this material The copyright transfer covers the exclusive right and license to reproduce, publish, distribute and archive the article in all forms and media of expression now known or developed in the future, including reprints, translations, photographic reproductions, electronic form (offline, online) or any other reproductions of similar nature.
Author(s) may self-archive an author-created version of his/her/their article on his/her/their own website and or in his/her/their institutional repository. He/she/they may also deposit this version on his/her/their funder’s or funder’s designated repository at the funder’s request or as a result of a legal obligation, provided it is not made publicly available until 12 months after official publication. Author(s) may not use the publisher’s PDF version, which is posted on www.geobrasiliensis.com.br, in repositories. Furthermore, the author(s) may only post his/her/their version provided acknowledgement is given to the original source of publication, assigning the link where it can be found. This link must be accompanied by the following text: “The final publication is available at www.geobrasiliensis.com.br”.
The author(s) retain(s) the right to use his/her/their article for his/her/their further scientific career by including the final article published by Geochimica Brasiliensis in other publications such as dissertations, theses and postdoctoral qualifications provided acknowledgement is given to the original source of publication.
After submission of the agreement signed by the corresponding author(s), changes of authorship or in the order of the authors listed will not be accepted by Sociedade Brasileira de Geoquímica.
Title of article:
Place and Date: