PMID- 16806472 OWN - NLM STAT- MEDLINE DCOM- 20070109 LR - 20161124 IS - 0160-4120 (Print) IS - 0160-4120 (Linking) VI - 32 IP - 7 DP - 2006 Sep TI - Occurrence and degradation of butyltins and wastewater marker compounds in sediments from Barcelona harbor, Spain. PG - 858-65 AB - Contamination of Barcelona harbor sediments was assessed by the quantitative determination of butyltins (TBT, DBT and MBT) and surfactant intermediates, namely linear alkylbenzenes (LABs) and nonylphenols (NPs), as markers of urban and industrial wastewater contamination, respectively. Degradation indexes of TBT and LABs were calculated. Tributyltin predominated in the whole area over its degradation products, ranging from 98 to 4702 ng Sn/g. These elevated concentrations reveal a persistent historical contamination and a moderate degradation (BT(deg)). Moreover, the high LAB concentrations (1.2-53.1 microg/g) compared to the relatively low NP levels (3.8-72.0 ng/g) suggest a predominance of urban over industrial wastewater inputs, although a significant correlation (r(2) = 0.82, N = 12, P = 0.001) between LABs and NPs was found. Stormwater runoff and combined sewer overflows (CSO) were likely the most possible sources for both surfactant intermediates. The high degradation index values obtained for LABs could indicate an improvement in the wastewater management reducing its recent discharge into the Barcelona harbor area. FAU - Diez, Sergi AU - Diez S AD - Environmental Chemistry Department, IIQAB-CSIC, Barcelona, Spain. sdsqam@cid.csic.es FAU - Jover, Eric AU - Jover E FAU - Albaiges, Joan AU - Albaiges J FAU - Bayona, Josep M AU - Bayona JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060627 PL - Netherlands TA - Environ Int JT - Environment international JID - 7807270 RN - 0 (Industrial Waste) RN - 0 (Trialkyltin Compounds) RN - 0 (Water Pollutants, Chemical) RN - 4XDX163P3D (tributyltin) RN - J64922108F (Benzene) SB - IM MH - Benzene/analysis/metabolism MH - Biodegradation, Environmental MH - Geologic Sediments/*analysis/chemistry MH - *Industrial Waste MH - Spain MH - Trialkyltin Compounds/*analysis/metabolism MH - Waste Disposal, Fluid/*methods MH - Waste Management MH - Water Pollutants, Chemical/*analysis/metabolism EDAT- 2006/06/30 09:00 MHDA- 2007/01/11 09:00 CRDT- 2006/06/30 09:00 PHST- 2005/11/24 00:00 [received] PHST- 2006/04/19 00:00 [revised] PHST- 2006/05/03 00:00 [accepted] PHST- 2006/06/30 09:00 [pubmed] PHST- 2007/01/11 09:00 [medline] PHST- 2006/06/30 09:00 [entrez] AID - S0160-4120(06)00062-6 [pii] AID - 10.1016/j.envint.2006.05.004 [doi] PST - ppublish SO - Environ Int. 2006 Sep;32(7):858-65. doi: 10.1016/j.envint.2006.05.004. Epub 2006 Jun 27.