The seasonal variation of particulate matter and its relationship with meteorological parameters were measured at five different residential sites in Delhi. Sampling was carried out for one year including all three seasons (summer, monsoon, and winter). The yearly average concentration of particulate matter (PM_2.5) was 135.16 ± 41.34 µg/m³. The highest average values were observed in winter (208.44 ± 43.67 µg/m³) and the lowest during monsoon season (80.29 ± 39.47 µg/m³). The annual average concentration of PM_2.5 was found to be the highest at the Mukherjee Nagar site (242.16 µg/m³ ) during the winter and lowest at (Jawaharlal Nehru University) JNU (35.65 µg/m³) during the monsoon season. The strongest correlation between PM mass and a meteorological parameter was a strong negative correlation with temperature (R2=0.55). All other parameters were weakly correlated (R2<0.2) with PM mass.

在德里五个不同的住宅区测量了颗粒物的季节变化及其与气象参数的关系。采样为期一年，包括所有三个季节（夏季、季风和冬季）。颗粒物（PM _2.5 ）年平均浓度为135.16 ± 41.34 µg/m ³。平均值最高出现在冬季（208.44 ± 43.67 µg/m ³），最低平均值出现在季风季节（80.29 ± 39.47 µg/m ³）。研究发现，Mukherjee Nagar 站点的 PM _2.5年平均浓度在冬季最高（242.16 µg/m ³ ），季风季节在暨南大学（贾瓦哈拉尔尼赫鲁大学）最低（35.65 µg/m ³ ）。 PM 质量与气象参数之间最强的相关性是与温度的强负相关性（R2=0.55）。所有其他参数与 PM 质量的相关性较弱 (R2<0.2)。