Sedimentary biomarkers along a contamination gradient in a human-impacted sub-estuary in Southern Brazil: a multi-parameter approach based on spatial and seasonal variability

Chemosphere
Michelle Alves de Abreu-MotaCésar C Martins

Abstract

The composition and seasonal variations of sedimentary organic matter were investigated along the Cotinga sub-estuary, located in Paranaguá Bay, a large South American estuary where urban activities and the primary Brazilian grain shipping port are sources of pollution. Steroids and hydrocarbons were analyzed in surface sediments collected during the austral winter (2008) and summer (2009) in three distinct sectors, along this sub-estuary in a presumed gradient of fecal contamination. Concentrations ranged from 0.28 to 7.33 μgg (-1) (in dry sample weight thereafter), <DL (below detection limit) to 57.2 ng g(-1) and <DL to 1.69 μg g(-1) for aliphatic hydrocarbons (ΣAHs), polycyclic aromatic hydrocarbons (ΣPAHs) and coprostanol, respectively. Petrogenic inputs may be considered as source of AHs due to the presence of unresolved complex mixture in the majority of sites; however the levels observed do not indicate oil contamination. The highest ΣPAHs concentrations were found during the summer in the middle sector of the sub-estuary but were below the threshold effect levels (TEL), suggesting the absence of contamination by PAHs. Selected PAH isomer ratios indicated pyrolytic sources, whereas fecal sterols indicated decreasing sewa...Continue Reading

References

Mar 11, 1992·The Science of the Total Environment·J K VolkmanH J Bavor
Mar 9, 2002·Marine Pollution Bulletin·J W ReadmanL D Mee
Apr 21, 2005·Environmental Pollution·Stephen M Mudge, Caroline E Duce
Dec 30, 2008·Marine Pollution Bulletin·Laurence AsiaGilbert Mille
Jan 29, 2013·Archives of Environmental Contamination and Toxicology·Tatiane CombiCésar C Martins

❮ Previous
Next ❯

Citations

Jul 20, 2014·Environmental Monitoring and Assessment·Ana Carolina Feitosa CruzDenis M S Abessa
Dec 30, 2014·The Science of the Total Environment·Morgane DerrienSantiago Capella Vizcaino
Jan 19, 2016·Marine Pollution Bulletin·Jesica P A RadaRenato S Carreira
Sep 2, 2015·Marine Pollution Bulletin·Carlos Alberto de Moura BarbozaPaulo da Cunha Lana
Mar 20, 2016·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Mariana V CapparelliJohn C McNamara
Mar 20, 2016·Marine Environmental Research·F M SouzaM G Camargo
Dec 3, 2014·Marine Pollution Bulletin·Kalina Manabe BraukoPaulo da Cunha Lana
Aug 5, 2016·Environmental Science and Pollution Research International·Adriana E SardiLionel Camus
Oct 16, 2016·Marine Environmental Research·Frederike Ricarda BoehmPaulo da Cunha Lana
Oct 4, 2016·Environmental Science and Pollution Research International·Morgana FrenaMarcelo R Alexandre
Oct 21, 2017·International Journal of Environmental Research and Public Health·Abiodun O AdenijiAnthony I Okoh
Jul 9, 2017·Environmental Science and Pollution Research International·Rafael André LourençoMárcia Caruso Bícego
Jun 28, 2018·Environmental Science and Pollution Research International·Thayanne Lima BarrosPaulo Lana
Feb 25, 2019·Environmental Science and Pollution Research International·Adriana E SardiLionel Camus
Jan 11, 2019·International Journal of Analytical Chemistry·Hector Henrique Ferreira KoolenGiovana Anceski Bataglion
Jun 2, 2018·Archives of Environmental Contamination and Toxicology·Sandro FroehnerJuan Sanez
Oct 7, 2018·Environmental Pollution·Denis M S AbessaLucas M Buruaem

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.