拉贾斯坦邦斋浦尔市区细颗粒物(PM1)化学成分和来源的季节变化

IF 0.4 Q4 ENVIRONMENTAL SCIENCES

Asian Journal of Water, Environment and Pollution Pub Date : 2023-10-09 DOI:10.3233/ajw230064

Shivani Sharma, Charu Jhamaria, Suresh Tiwari, Namrata Singh, Harsha Parwani, Nidhi Rajoria, Tanisha Ameriya, Akanksha Gupta

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引用次数: 0

摘要

本研究旨在调查印度斋浦尔市区细颗粒物(PM1)质量浓度、化学成分(水、可溶性和非可溶性离子及其他元素)和气态污染物(SO2、NO2、CO和O3)的季节变化。夏季PM1、NO2、SO2和CO分别减少18.97%、41.95%、32.32%和20.56%。相比之下，O3增长了27%。次生气溶胶SO4 2-(71.15%)、NO3-(21.86%)、Cl-(65.63%)和K+(8.16%)的含量也显著降低。元素成分Al、B、Be、Ca、Cu、Fe、Mn、Ni、Pb减少幅度为15.13% (Al) ~ 71% (Cu)。相反，Ag(21.95%)、Cd(62.5%)、Cr(89.74%)、Mg(10.43%)和Na(25.32%)的含量增加。采用主成分分析(PCA)提取4个影响因子。除本地污染源外，已确定三个固定污染源对污染负荷有贡献，分别位于工地的西北、东北和东北方向。可以得出结论，任何地区的污染物浓度和化学成分不仅取决于当地的排放，而且附近的固定源和气象是重要的贡献者。

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Seasonal Variations in Chemical Composition and Source Apportionment of Fine Particulate Matter (PM1) in an Urban Site of Jaipur City, Rajasthan

The present study was conducted with an aim to investigate the seasonal variation in mass concentration of fine particulate matter (PM1), their chemical composition, (water and soluble and non-soluble ions and other elements) and gaseous pollutants (SO2, NO2, CO and O3) at an urban site of Jaipur city in India. During summers, pollutants showed a reduction of 18.97%, 41.95%, 32.32% and 20.56% for PM1, NO2, SO2 and CO, respectively. In contrast, O3 showed an increase of 27%. The substantial reduction was also observed in the levels of secondary aerosols SO4 2- (71.15%), NO3-(21.86%), Cl- (65.63%) and K+ (8.16%). The elemental components Al, B, Be, Ca, Cu, Fe, Mn, Ni, and Pb showed a reduction in the range of 15.13 % (Al) to 71% (Cu). On the contrary, an increment was found in the levels of Ag (21.95%), Cd (62.5%), Cr (89.74%), Mg (10.43%) and Na (25.32%). Four factors were extracted by principal component analysis (PCA). In addition to the local sources, three stationary sources have been identified as contributing to the pollution load located in the WNW, NE and ENE direction of the site. It can be concluded that pollutant concentration and chemical composition of any area not only depend on the local emission, but nearby stationary sources and meteorology are significant contributors.

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来源期刊

Asian Journal of Water, Environment and Pollution ENVIRONMENTAL SCIENCES-

CiteScore

1.00

自引率

20.00%

发文量

期刊介绍： Asia, as a whole region, faces severe stress on water availability, primarily due to high population density. Many regions of the continent face severe problems of water pollution on local as well as regional scale and these have to be tackled with a pan-Asian approach. However, the available literature on the subject is generally based on research done in Europe and North America. Therefore, there is an urgent and strong need for an Asian journal with its focus on the region and wherein the region specific problems are addressed in an intelligent manner. In Asia, besides water, there are several other issues related to environment, such as; global warming and its impact; intense land/use and shifting pattern of agriculture; issues related to fertilizer applications and pesticide residues in soil and water; and solid and liquid waste management particularly in industrial and urban areas. Asia is also a region with intense mining activities whereby serious environmental problems related to land/use, loss of top soil, water pollution and acid mine drainage are faced by various communities. Essentially, Asians are confronted with environmental problems on many fronts. Many pressing issues in the region interlink various aspects of environmental problems faced by population in this densely habited region in the world. Pollution is one such serious issue for many countries since there are many transnational water bodies that spread the pollutants across the entire region. Water, environment and pollution together constitute a three axial problem that all concerned people in the region would like to focus on.