The United Arab Emirates (UAE) has seen an increase in oil extraction and oil refining processes. Toxic pollutants such as sulphur dioxide (SO₂), black carbon (BC), carbon monoxide (CO) and organic carbon (OC) are released during oil refinery processes. These toxic pollutants have severe negative impacts on the climate, environment and human health. In this study we investigate the trends of BC, CO, SO₂ and OC for 38 years (1980-2018) over this region using satellite, ground based and reanalysis data. Trend analysis was also performed using linear regression (LR), Mann-Kendall (MK) and Sequential Mann-Kendall (SQ-MK) tests. The results showed an increasing trend in BC, OC, CO and SO₂ concentrations over time, attributable to oil refinery activities in the region. Significant increases in BC and SO₂ are observed in the year 1992, while a significant increase in OC is observed in 2007. The aerosol Angstrom parameter (AAP) showed the dominance of dust aerosols compared to anthropogenic aerosols. However, both these aerosol types contributed to the degradation of air quality in the region. The results in this study can be used to support policy and decision making, as well as monitoring progress in the implementation of such policies.

阿拉伯联合酋长国（UAE）的石油开采和炼油工艺有所增加。在炼油过程中会释放出有毒污染物，例如二氧化硫（SO ₂），黑碳（BC），一氧化碳（CO）和有机碳（OC）。这些有毒污染物对气候，环境和人类健康具有严重的负面影响。在这项研究中，我们 使用卫星，地面和再分析数据调查了该地区38年（1980-2018年）中BC，CO，SO ₂和OC的趋势。还使用线性回归（LR），Mann-Kendall（MK）和顺序Mann-Kendall（SQ-MK）测试进行趋势分析。结果表明BC，OC，CO和SO ₂呈增加趋势 随着时间的推移，浓度升高，归因于该地区的炼油厂活动。 1992年观察到BC和SO ₂显着增加，而2007年观察到OC显着增加。气溶胶Angstrom参数（AAP）显示，与人为气溶胶相比，粉尘气溶胶占主导地位。但是，这两种气溶胶类型均导致该地区空气质量下降。这项研究的结果可用于支持政策和决策，以及监测此类政策的实施进度。