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The global budget for naturally occurring inorganic nanoparticles. All numbers are in units of terragrams (Tg = 1012 g). All italicized numbers are fluxes (Tg yr-1), and the numbers in rectangular boxes are reservoir sizes, if known. Some of the nanomaterial fluxes are listed as two components, explained as follows: for the volcanic input to the atmosphere, 20 Tg is due to SO2 aerosol formation, and 2 Tg is due to mineral ash. For the three aeolian inputs to the continents, continental shelves, and the open oceans, the first number is due to the 320 Tg continental mineral dust output, and the second number is due to the 22 Tg volcanic output.
Originally uploaded in Nanotechnology in STEM.

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Uploaded: Jun4 18

Last Modified: 2020-01-30 11:21:34
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Figure from Michael Hochella, Virginia Tech, NNCI NanoEarth Project
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