NDLI: Seasonal changes in organotin compounds in sediments from the Bahía Blanca Estuary

Content Provider	Springer Nature Link
Author	Quintas, Pamela Y. Oliva, Ana L. Arias, Andrés Domini, Claudia E. Alvarez, Mónica B. Garrido, Mariano Marcovecchio, Jorge E.
Copyright Year	2016
Abstract	Twenty-four surface sediment samples were collected in the Bahía Blanca Estuary (Argentina) during 2013 in order to assess the occurrence of butyltin compounds. Then, six areas ranging from zones with intensive maritime traffic to other rural/recreational zones at the inner utmost point of the estuary were periodically sampled (3 months) along the whole year. After extraction/derivatization assisted by ultrasound, three target compounds—including monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT)—were analyzed by means of gas chromatography/mass spectrometry (GS/MS). Total butyltin (TBts) levels ranged from 73.5 to 395.2 ng Sn g$^{−1}$ dry wt TBT was the minor contributor, accounting for 12.6 % of the TBts. On the other hand, MBT, for which no baseline precedents were available, accounted for the 51.4 % of TBts. Sampling sites could be classified, in terms of environmental health regarding the organotin compounds (OTs) relationship, each from lightly (3–20 ng Sn g$^{−1}$ dry wt) to moderately polluted (20–100 ng Sn g$^{−1}$ dry wt). In the light of TBts levels, distributions and covariation with environmental parameters such as granulometry and sediment organic carbon the occurrence of DBT and MBT could not be uniquely attributed to the degradation pathway of the TBT; in fact, results outlined the possible contribution of some punctual and diffuse sources at the area such as refineries, PVC industry inputs and the city hall main sewage.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	8
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-04-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Organotin compounds Ultrasound Sediments Bahía Blanca Estuary Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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