CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India.
CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India.
Mar Pollut Bull. 2019 Sep;146:683-695. doi: 10.1016/j.marpolbul.2019.07.015. Epub 2019 Jul 18.
The Eastern Arabian Sea (EAS) is affected by oil pollution, as often evidenced by the presence of tarballs along the West Coast of India (WCI). Tarball samples collected during May 2017 along the Goa coast were subject to biomarker fingerprints, and the results matched with Bombay High (BH) oil fingerprints. The present study primarily aims at identifying the potential minor spill areas using Sentinel-imagery. Interestingly, repeated occurrence of oil spills detected at two locations, perfectly matched with BH platforms. The simulated Lagrangian trajectories also depict that tarball particles have originated from those detected locations. In 2017 alone, the quantity of spilled oil was estimated to be 129,392 l. However, spills detected offshore regions of Kachchh and Mangalore were found to be caused by ships. This is the first comprehensive study, tracking the oil pollution sources in the EAS through multi-technique approach - chemical, remote sensing and numerical modeling.
东海（EAS）受到石油污染的影响，印度西海岸（WCI）经常可以看到焦油球的存在。2017 年 5 月在果阿海岸收集的焦油球样本进行了生物标志物指纹分析，结果与孟买高地（BH）石油指纹相匹配。本研究主要旨在利用哨兵图像识别潜在的小范围溢油区域。有趣的是，在两个位置检测到的油溢出现了重复，与 BH 平台完全吻合。模拟的拉格朗日轨迹也表明焦油球颗粒源自这些检测到的位置。仅在 2017 年，估计泄漏的石油量为 129392 升。然而，在卡奇和芒格洛尔的近海地区检测到的溢油被发现是由船只造成的。这是首次通过化学、遥感和数值模拟等多种技术手段全面研究 EAS 的石油污染来源。
