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This is one of the first studies in small particulate matter (PM2.5) by inductively coupled plasma sector field mass spectrometry to measure the activity concentrations of isotopic uranium (234, 235… Click to show full abstract
This is one of the first studies in small particulate matter (PM2.5) by inductively coupled plasma sector field mass spectrometry to measure the activity concentrations of isotopic uranium (234, 235 and 238U) and thorium (232Th) in these fine particulates, to know their origin and their impact on human health in Mexico City. A different isotopic composition from the natural uranium composition was found. The 235U/238U atom ratio values are considered as low enrichment uranium, around 2% of 235U enrichment. Both 235U/238U and 234U/238U ratios suggested anthropological rather natural source is impacting the composition of uranium in PM2.5.
Journal Title: Journal of Radioanalytical and Nuclear Chemistry
Year Published: 2017
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