Study of seasonal variation of PM2.5 concentration associated with meteorological parameters at residential sites in Delhi, India

IF 3 4区地球科学 Q2 ENVIRONMENTAL SCIENCES Journal of Atmospheric Chemistry Pub Date : 2021-04-21 DOI:10.1007/s10874-021-09419-8

Bhupendra Pratap Singh, Deepak Singh, Krishan Kumar, Vinod Kumar Jain

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引用次数: 22

Abstract

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.

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印度德里居民区PM2.5浓度季节变化与气象参数的关系研究

在德里5个不同的居民点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、季风季节和冬季)。颗粒物(PM2.5)年平均浓度为135.16±41.34µg/m3。平均值冬季最高(208.44±43.67µg/m3)，季风季节最低(80.29±39.47µg/m3)。PM2.5的年平均浓度在冬季在Mukherjee Nagar站点最高(242.16µg/m3)，在季风季节在Jawaharlal Nehru大学最低(35.65µg/m3)。PM质量与各气象参数的相关性最强，与温度呈显著负相关(R2=0.55)。其他参数与PM质量呈弱相关(R2<0.2)。

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来源期刊

Journal of Atmospheric Chemistry 地学-环境科学

CiteScore

4.60

自引率

5.00%

发文量

审稿时长

7.5 months

期刊介绍： The Journal of Atmospheric Chemistry is devoted to the study of the chemistry of the Earth''s atmosphere, the emphasis being laid on the region below about 100 km. The strongly interdisciplinary nature of atmospheric chemistry means that it embraces a great variety of sciences, but the journal concentrates on the following topics: Observational, interpretative and modelling studies of the composition of air and precipitation and the physiochemical processes in the Earth''s atmosphere, excluding air pollution problems of local importance only. The role of the atmosphere in biogeochemical cycles; the chemical interaction of the oceans, land surface and biosphere with the atmosphere. Laboratory studies of the mechanics in homogeneous and heterogeneous transformation processes in the atmosphere. Descriptions of major advances in instrumentation developed for the measurement of atmospheric composition and chemical properties.