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

หน่วยงาน National Institute Of Oceanography (NIO), India

รายละเอียด

ชื่อเรื่อง : Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India
นักวิจัย : Bhosle, N.B. , Garg, A. , Harji, R. , Jadhav, S. , Sawant, S.S. , Krishnamurthy, V. , Anil, A.C.
คำค้น : sediments , harbours , seasonal variations , ocean currents , ocean tides , bidegradation , toxicity , pollution effects , marine organisms , organic compounds
หน่วยงาน : National Institute Of Oceanography (NIO), India
ผู้ร่วมงาน : -
ปีพิมพ์ : 2549
อ้างอิง : Environment international, Vol.32; 252-258p. , http://drs.nio.org/drs/handle/2264/836
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Surface sediment samples were collected from various locations in the Mumbai and Kochi harbours, west coast of India, to assess the presence of butyltin compounds. Tributyltin (TBT) and dibutyltin (DBT) varied from 16 to 16,816 ng/g dry wt. and from undetected to 469 ng/g dry wt., respectively, of the sediment in Kochi harbour. In Mumbai harbour, the values of TBT and DBT ranged between 4.5 and 1193 ng/g dry wt. and from undetected to 131 ng/g dry wt. of the sediments, respectively. The concentrations of both TBT and DBT showed strong seasonal variation probably due to the effect of tides and currents. Nevertheless, the levels of butyltin compounds were generally higher at sites influenced by shipping activities such as navigation, dry dock and ship-building activities. The presence of DBT indicates the abiotic or microbiological degradation of TBT. Compared to TBT, DBT was relatively less abundant, suggesting either fresh inputs of TBT and/or less degradation of TBT. The concentrations of TBT showed significant positive relationships with organic carbon and lipid, implying that both lipophilic and ionic interactions were probably involved in controlling the abundance of TBT at these sediments. The observed levels of butyltin compounds are much higher than those required to induce toxic effects on marine organisms, suggesting that these sediments were contaminated with butyltin compounds

บรรณานุกรม :
Bhosle, N.B. , Garg, A. , Harji, R. , Jadhav, S. , Sawant, S.S. , Krishnamurthy, V. , Anil, A.C. . (2549). Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India.
    : National Institute Of Oceanography (NIO), India.
Bhosle, N.B. , Garg, A. , Harji, R. , Jadhav, S. , Sawant, S.S. , Krishnamurthy, V. , Anil, A.C. . 2549. "Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India".
    : National Institute Of Oceanography (NIO), India.
Bhosle, N.B. , Garg, A. , Harji, R. , Jadhav, S. , Sawant, S.S. , Krishnamurthy, V. , Anil, A.C. . "Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India."
    : National Institute Of Oceanography (NIO), India, 2549. Print.
Bhosle, N.B. , Garg, A. , Harji, R. , Jadhav, S. , Sawant, S.S. , Krishnamurthy, V. , Anil, A.C. . Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India. : National Institute Of Oceanography (NIO), India; 2549.