Chemical characteristics, morphology and source apportionment of PM10 over National Capital Region (NCR) of India
Environmental Monitoring and Assessment(2024)
Abstract
The present study frames the physico-chemical characteristics and the source apportionment of PM10 over National Capital Region (NCR) of India using the receptor model’s Positive Matrix Factorization (PMF) and Principal Momponent Mnalysis/Absolute Principal Component Score–Multilinear Regression (PCA/APCS-MLR). The annual average mass concentration of PM10 over the urban site of Faridabad, IGDTUW-Delhi and CSIR-NPL of NCR-Delhi were observed to be 195 ± 121, 275 ± 141 and 209 ± 81 µg m−3, respectively. Carbonaceous species (organic carbon (OC), elemental carbon (EC) and water-soluble organic carbon (WSOC)), elemental constituents (Al, Ti, Na, Mg, Cr, Mn, Fe, Cu, Zn, Br, Ba, Mo Pb) and water-soluble ionic components (F−, Cl−, SO42−, NO3−, NH4+, Na+, K+, Mg2+, Ca2+) of PM10 were entrenched to the receptor models to comprehend the possible sources of PM10. The PMF assorted sources over Faridabad were soil dust (SD 15
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Key words
PM10,PMF,PCA/APCS-MLR,FE-SEM,NCR-Delhi
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