Butyltin Compounds in Sediments of the Bahía Blanca Estuary, Argentina

• Published in: Environmental monitoring and assessment Vol. 132; no. 1-3; pp. 445 - 451
• Main Authors: Delucchi, Federico, Tombesi, Norma B, Freije, Rubén H, Marcovecchio, Jorge E
• Format: Journal Article
• Language: English
• Published: Dordrect Dordrecht : Springer Netherlands 01.09.2007; Springer; Springer Nature B.V
• Subjects: Antifouling paints; Antifouling substances; Applied sciences; Argentina; Bahía Blanca estuary; Brackish; Chromatography; Dibutyltin; Dry dock; Earth sciences; Earth, ocean, space; Energy consumption; Engineering and environment geology. Geothermics; Environmental monitoring; Environmental Pollution - analysis; Estuaries; Exact sciences and technology; Fishing zones; Geologic Sediments - analysis; Geologic Sediments - chemistry; Microorganisms; organotin compounds; Organotin Compounds - analysis; Pollution; Pollution sources. Measurement results; Pollution, environment geology; Sediments; Soil and sediments pollution; Studies; Toxicity; Trialkyltin Compounds - analysis; Tributyltin; Water Pollutants, Chemical - analysis; Wetlands; Argentina; South America; America; ASW, Argentina, Buenos Aires, Blanca Bay; PSW, Argentina; Bahía Blanca estuary; Argentina; Dibutyltin; Estuaries; Antifouling paint; Dry dock; Sediments; Spatial variation; Shipyard; Coastal plain; Gas chromatography; Pollution; Antifouling paints; Organotin compounds; Tributyltin; Tin Organic compounds; Biocide; Mass spectrometry; Organic stannane; Organic compounds; Concentration distribution
• ISSN: 0167-6369; 1573-2959
• DOI: 10.1007/s10661-006-9547-4

Systematic measurements of both Tributyltin (TBT) and Dibutyltin (DBT) in sediments along different locations in the inner zone of Bahía Blanca estuary were done. Two samples were taken near the main dry dock facility, at Puerto Belgrano naval base, in Argentina. TBT concentrations from non-detected to 170.3 ng Sn g-¹ were measured in the inner region of the estuary, and higher one of 3,288 ng Sn g-¹ near the dry dock at Puerto Belgrano. DBT values ranging between non-detected and 75.2 ng Sn g-¹ were obtained along the principal channel, but extreme concentration of 1,645 ng Sn g-¹ was measured at Puerto Belgrano. These values show that this estuary is affected by organotin pollution, mainly in areas of heavy shipyard activities.