Oil pollution resulting from natural and anthropogenic activities in the Arabian Gulf as well as oil residue in the form of tarmat (TM) deposited on the coast is a major environmental concern. The spatial distribution, chemical composition and weathering pattern of tarmat along the west coast of Qatar has been assessed based on the TM samples collected from 12 coastal regions. The range of TM distribution is 0–104 g m⁻¹ with an average value of 9.25 g m⁻¹. Though the current TM level is thirty-fold lesser than that was found during 1993–1997 (average 290 g m⁻¹), the distribution pattern is similar. The results of ATR-FTIR spectroscopy indicate that aromatic compounds are higher in the north (N) coast TMs than those found in the northwest (NW) and southwest (SW) coasts, and Carbonyl Index values indicate that TM of NW coast is highly weathered compared to those found in the N and SW coasts.

阿拉伯湾的自然和人为活动造成的油污染以及沿海岸沉积的tarmat（TM）形式的油渣是一个主要的环境问题。根据从12个沿海地区收集的TM样品，评估了卡塔尔西海岸柏油的空间分布，化学成分和风化模式。TM分布范围为0–104 gm ^-1，平均值为9.25 gm ^-1。尽管目前的TM含量比1993-1997年的平均含量低30倍（平均290 gm ^-1），分布方式相似。ATR-FTIR光谱的结果表明，北部（N）海岸TMs中的芳族化合物含量高于西北（NW）和西南（SW）海岸中的芳族化合物，而羰基指数值表明西北部TM的风化程度很高与北海岸和西南海岸的相比。