The atmospheric concentration of black carbon (BC) has paramount importance worldwide due to its role in global warming and its adverse effect on human health. Only limited information is available about BC concentration and emission factors from the Arabian/Persian Gulf region despite the presence of significant sources including petrochemical industry and maritime shipping. The atmospheric concentrations of BC, nitrogen oxides (NO, NO₂), ozone and particulate matter (PM₁₀) were monitored at a suburban location and at a central residential location in Doha, Qatar during fall-spring 2016–2017. Elevated NO_X and BC mean concentrations (25.8 ppbv and 5.17 μg/m³ respectively) and maximum values (228 ppbv vs. 27 μg/m³) were measured at both locations. The average ozone mixing ratio was 15.9 ppbv (max. 52.6 ppbv). Typically, the BC concentration was correlated with NO_X, which indicates common sources. BC/NO_X emission ratios (ER) were calculated to characterise the sources, while the NO/NO_X concentration ratio was used as a proxy of pollution age. The calculated BC/NO_X emission ratios were found to be high comparing to the EMEP database, with the means of 0.13 μg m⁻³ ppbv⁻¹ (suburban location) and 0.10 μg m⁻³ ppbv⁻¹ (residential location). The BC/NO_X ER did not show significant daily variation, while the NO/NO_X ratio showed typical urban time pattern with high ratio during morning rush hours following by a decreasing trend during afternoon, and minimum values at night-time. The PM₁₀ concentrations were high during the measurement period with a mean of 103 μg m⁻³, which is typical in the Gulf region. During occasional dust storm events the PM₁₀ hourly average concentration raised peaked at 1054 μg m⁻³. Significant influence of mineral dust was observed on the BC measurement and the absorption properties, as it was increasing the BC readings and widening the distribution of the absorption Ångström exponent. The mass absorption cross-section of mineral dust was determined during the major dust storm event.

由于黑碳在全球变暖中的作用及其对人体健康的不利影响，因此大气中的黑碳（BC）浓度在全球范围内至关重要。尽管存在包括石化工业和海上运输在内的重要资源，但关于阿拉伯/波斯湾地区的BC浓度和排放因子的信息很少。在2016-2017年秋季春季期间，在卡塔尔多哈的郊区和中央住宅区对BC，氮氧化物（NO，NO ₂），臭氧和颗粒物（PM ₁₀）的大气浓度进行了监测。升高的NO _X和BC平均浓度（分别为25.8 ppbv和5.17μg/ m ³）和最大值（228 ppbv对27μg/ m ³）在两个位置均进行了测量。平均臭氧混合比为15.9 ppbv（最大52.6 ppbv）。通常，BC浓度与NO _X相关，这表明常见来源。计算BC / NO _X排放比（ER）来表征污染源，而将NO / NO _X浓度比用作污染年龄的代表。与EMEP数据库相比，发现计算出的BC / NO _X排放比很高，平均值为0.13μgm ^-3  ppbv ^-1（郊区）和 0.10μgm ^-3 ppbv ^-1（居住区）。BC / NO _X ER没有显示出明显的每日变化，而NO / NO_X比率显示典型的城市时间模式，早上高峰时段比率较高，下午则呈下降趋势，夜间则呈最小值。在测量期间，PM ₁₀浓度很高，平均为103μgm ^-3，这在海湾地区是典型的。在偶尔的沙尘暴事件中，PM ₁₀小时平均浓度升高达到1054μgm ^-3的峰值。观察到矿物粉尘对BC测量和吸收特性产生了显着影响，因为它增加了BC读数并扩大了吸收Ångström指数的分布。在重大沙尘暴事件期间确定了矿物粉尘的质量吸收横截面。