Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India

Bhosle, N.B.; Garg, Anita; Harji, Ranjita; Jadhav, Sangeeta; Sawant, Sanghapal D.; Krishnamurthy, V.; Anil, Chandrashekar

doi:10.1016/j.envint.2005.08.020

Cited by 51 publications

(16 citation statements)

References 34 publications

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“…In comparison with those values reported in other countries, the levels of BTs obtained in this study were similar with those in São Vicente Estuary (Brazil) [13], Coast (Vietnam) [30], North coast of Kyoto (Japan) [31], but significantly lower than those in Kochi Harbor (India) [32], estuaries of Gipuzkoa (Spain) [33], Northern Adriatic Sea (Slovenia) [34], Santa Catarina Harbors (Brazil) [13] and coast of Mediterranean (Spain) [24].…”

Section: Comparison With Other Studiessupporting

confidence: 61%

Organotin compounds in surface sediments from selected fishing ports along the Chinese coast

Zhang

Shi

et al. 2012

Chin. Sci. Bull.

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The concentrations and species of organotin compounds (OTCs) in 52 surface sediment samples from nine fishing ports along the Chinese coast were studied. Butyltins (BTs) and phenyltins (PhTs) were derivatized using sodium tetraethylborate (NaBEt 4 ) and determined by head-space solid-phase microextraction (HS-SPME) gas chromatography coupled with a flame photometric detector (GC-FPD). The concentrations of OTCs ranged from <3.6 to 194 ng (Sn) g −1 dry weight (dw) for monobutyltin (MBT), <2.3 to 41.5 ng (Sn) g −1 dw for dibutyltin (DBT), <0.7 to 86.0 ng (Sn) g −1 dw for tributyltin (TBT) and <5.1 to 66.1 ng (Sn) g −1 dw for monophenyltin (MPhT), respectively. The concentrations of diphenyltin (DPhT) and triphenyltin (TPhT) were below the limit of detection (LOD). BTs were the main species in the sediments except for the samples collected from Shazikou fishing port in Qingdao. The concentrations of MBT were higher than DBT and TBT. The concentrations of OTCs in the sediments varied widely among different sampling locations. The concentrations of BTs were much higher in the samples collected from fishing ports close to the South China Sea than those in coast of the East China Sea and the Yellow Sea. MPhT was prevalent in most sampling stations except for those in coast of the East China Sea. The environmental and ecotoxicological risks of TBT in most sediment samples were low.

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Section: Comparison With Other Studiessupporting

confidence: 61%

Organotin compounds in surface sediments from selected fishing ports along the Chinese coast

Zhang

Shi

et al. 2012

Chin. Sci. Bull.

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“…However, »BT concentrations in this study were higher than those in Gyeonggi Bay (40-297 ng Sn/g) and in Gwangyang Bay (nd-131 ng Sn/g) reported before the TBT regulation in Korea 22,[33][34][35] . When the sediment TBT and »BT concentrations in Masan Bay in this study were compared with those reported in other Asian countries, they were higher than those in Nothern Vietnam and Malzuru Bay, Japan and comparable or lower than Malaysia 36 , India and Kaoshing Harbour, Taiwan TBT 37,38 (Table 2). Water TBT concentrations showed apparent decreasing trend in Masan Bay after the regulation, but sediment concentrations did not show steep reduction in Masan Bay even after the regulation, which was similar to a situation in Osaka Port, Japan 24 and Jinhae Bay and Busan Bay, Korea 39,40 .…”

Section: Horizontal Distribution Of Butyltins In Surface Sedimentscontrasting

confidence: 45%

Status and trend of butyltin contamination in Masan Bay, Korea

Kim

et al. 2011

Toxicol. Environ. Health Sci.

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The current status and historical trend of butyltin contamination in Masan Bay was evaluated using water, sewage effluents, surface sediments and sediment cores. Samples were taken during 2004-2005, after the introduction of TBT regulation in Korea. The levels were at nd-2.4 ng Sn/L for TBT and nd-6.4 ng Sn/L for »BT in seawater, and 6-165 ng Sn/g dw (TBT) and 11-329 ng Sn/g dw (»BT) in surface sediments from Masan Bay. Three butyltins were detected in STP effluent which acts like an additional source of butyltin to the bay. Butyltin contamination in sediment has apparently increased in the inner part of the bay in the past two decades. Regulation was effective in reducing TBT pollution in seawater, but not effective enough for sediments. Hence, it is important to monitor TBT in sediments.

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“…In general, BT levels in the sediment samples in Kaohsiung Harbor were relatively less than those reported at other locations such as the Kochi Harbor and Mumbai Harbor in India (Arambarri et al 2003), estuaries of Gipuzkoa in Spain (Bhosle et al 2006), and coast of Mediterranean in Spain (Díez et al 2002). However, all of the sampled sediments exceeded the ecotoxicological assessment criteria of 2-21 ng/g as proposed by the Oslo-Paris Commission (OSPAR 2005).…”

Section: Level Of Butyltins Contaminationmentioning

confidence: 76%

Butyltin contamination in sediments and seawater from Kaohsiung Harbor, Taiwan

Chen

Kao

Dong

et al. 2009

Environ Monit Assess

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The distribution of butyltin (BT) compounds in the sediments and seawater, at the river outfalls, fishing ports, shipyards, and industrial zone docks of Kaohsiung Harbor, Taiwan were investigated. Twenty sediment and seawater samples were collected from various locations in the Harbor in 2006 and analyzed for monobutyltin (MBT), dibutyltin (DBT), and tributyltin (TBT). Results showed that the concentration of total BTs varied from 1.5 to 151 ng/g in sediment samples, with TBT being the major component of the sediment samples. This suggests that sediments could be the most possible sink of TBT brought by the sorption mechanism. The concentrations of BTs ranged from 9.7 to 270 ng/L in seawater samples, whereas DBT and MBT, the degradation byproducts of TBT, were mainly the most abundant BT compounds of the seawater samples. This indicates that the abiotic or biotic degradation potential of TBT was significant. Spatially, the highest concentrations of BTs were observed in both water and sediment samples collected from the shipyard and fishing port areas. This indicates that the shipping-related activities (e.g., navigation, ship repair, and ship building) would contribute most of BTs in the environment. Results show that the concentrations of degradation products (DBT and MBT) were related closely to temperature, salinity, dissolved oxygen (DO), and chlorophyll-a of the seawater. This implies that seasonal changes of the water parameters controlled the degradation of TBT in seawater. The observed levels of BT compounds in both seawater and sediments were much higher than those required to induce toxic effects on marine organisms, suggesting that appropriate TBT control strategies should be taken in Kaohsiung Harbor.

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Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India

Cited by 51 publications

References 34 publications

Organotin compounds in surface sediments from selected fishing ports along the Chinese coast

Organotin compounds in surface sediments from selected fishing ports along the Chinese coast

Status and trend of butyltin contamination in Masan Bay, Korea

Butyltin contamination in sediments and seawater from Kaohsiung Harbor, Taiwan

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