Kanpur is one of the most polluted industrial cities in the world, as tagged by the World Health Organization in 2018. Most studies on airborne particulate matter in the area have shown that the PM2.5 concentration in the city is much higher than that of other major cities around the country. In the present study, for analyzing the air quality (PM2.5) and elemental concentration (Zn, Ca, Fe, K, Mn, Ni, Pb, Al, Cr, and Na) over the winter season at Kanpur, sampling was done by collecting the air sample on quartz fiber filter paper. The air samples were analyzed using the Flame Atomic Absorption Spectrometer (FAAS). The elemental concentration was also estimated by using the optimized power for X-rays via WD-XRF. The PM2.5 concentration at the site was about 333.2 $\pm$ 52 μg/m³, which was 90% higher than the concentration measured in the year 2007 for the Kanpur city and 5-fold the safe limits as per Indian and global air quality standards for PM2.5. The inhomogeneous deposition was also observed, especially for the K and Na. The optimized power for the WD-XRF was about 2 kW for K and Ca, while 0.9 kW for Na. A high correlation coefficient was obtained between WD-XRF and FAAS concentration for Al, K, Na.

坎普尔（Kanpur）是世界上污染最严重的工业城市之一，正如世界卫生组织（World Health Organization）在2018年标记的那样。该地区大多数空气中悬浮颗粒物研究表明，该城市的PM2.5浓度远高于其他城市。全国主要城市。在本研究中，为了分析坎普尔冬季的空气质量（PM2.5）和元素浓度（锌，钙，铁，钾，锰，镍，铅，铝，铬和钠），进行了采样通过在石英纤维滤纸上收集空气样本。使用火焰原子吸收光谱仪（FAAS）分析空气样品。还通过使用WD-XRF的X射线最佳功率来估算元素浓度。现场的PM2.5浓度约为333.2$\pm$52μg/ m ³，比坎普尔市2007年测得的浓度高90％，是印度和全球PM2.5空气质量标准的安全限值的5倍。还观察到不均匀的沉积，特别是对于钾和钠。WD-XRF的最佳功率对于K和Ca约为2 kW，而对于Na为0.9 kW。WD-XRF与FAAS浓度对Al，K，Na具有较高的相关系数。