The combustion-related primary and secondary carbon particles have gained more importance in the recent past due to their radiative and chemical properties. The present paper deals with the results obtained from observations on Organic Carbon (OC) and Elemental Carbon (EC) during 2019–20 over a high-altitude location, Mahabaleshwar in the Western Ghats in peninsular India. The data is classified into summer (March to May 2019) and winter (December 2019 to February 2020). Mean OC mass was more during summer (13.6 ± 4.4 μg / m³) than winter (11.1 ± 3.2 μg / m³). However, mean EC mass was more in winter (3.6 ± 1.1 μg / m³) than in summer (2.2 ± 1.1 μg / m³). The mean annual OC/EC ratio was 7.4 ± 4.4 in summer and 3.1 ± 0.7 in winter, suggesting more presence of secondary organic carbon (SOC) during summer. Estimated SOC formed about 62% of OC in summer whereas in winter both SOC and primary organic carbon (POC) formed 50% each of OC. Together both POC and EC contributed to 46% of the total carbon (TC) in summer and 62% in winter indicating more primary fraction during winter. The effective carbon ratio (ECR) was 1.6 and 0.7 during summer and winter respectively, indicating the dominance of scattering-type secondary carbonaceous aerosols in summer. Cluster and concentrated weighted trajectory (CWT) analysis indicated high concentrations of OC and EC in continental originated trajectories. However, a high OC/EC ratio was observed for air masses arriving from long-distance sources.

由于其辐射和化学性质，与燃烧相关的初级和次级碳颗粒在最近变得越来越重要。本论文讨论了 2019-20 年在印度半岛西高止山脉马哈巴莱什瓦尔的高海拔地区对有机碳 (OC) 和元素碳 (EC) 的观测结果。数据分为夏季（2019年3月至2019年5月）和冬季（2019年12月至2020年2月）。夏季 (13.6 ± 4.4 μg / m ³ ) 的平均 OC 质量高于冬季 (11.1 ± 3.2 μg / m ³ )。然而，冬季 (3.6 ± 1.1 μg / m ³ ) 的平均 EC 质量高于夏季 (2.2 ± 1.1 μg / m ^{3 )}）。夏季的年均 OC/EC 比率为 7.4 ± 4.4，冬季为 3.1 ± 0.7，表明夏季存在更多次生有机碳 (SOC)。估计 SOC 在夏季形成约 62% 的 OC，而在冬季，SOC 和主要有机碳 (POC) 均形成 50% 的 OC。POC 和 EC 一起在夏季贡献了总碳 (TC) 的 46%，在冬季贡献了 62%，表明冬季的主要部分更多。夏季和冬季的有效碳比 (ECR) 分别为 1.6 和 0.7，表明夏季散射型二次碳质气溶胶占主导地位。聚类和集中加权轨迹 (CWT) 分析表明大陆起源轨迹中 OC 和 EC 的浓度很高。然而，对于来自远距离来源的气团，观察到高 OC/EC 比率。