the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Two distinct ship emission profiles for organic-sulfate source apportionment of PM in sulfur emission control areas
Kirsten N. Fossum
Chunshui Lin
Niall O'Sullivan
Lu Lei
Stig Hellebust
Darius Ceburnis
Aqeel Afzal
Anja Tremper
David Green
Srishti Jain
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Colin O'Dowd
John Wenger
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We compared near real-time and benchtop XRF spectrometers measuring trace elements in airborne particles across three European cities. Results show filter material dictates accuracy: Teflon yielded strong inter-instrument agreement, while quartz caused systematic attenuation errors for light elements. Because empirical corrections left residual biases, using optimal substrates—preferably Teflon—is essential for accurately tracking pollution sources.
We compared near real-time and benchtop XRF spectrometers measuring trace elements in airborne particles across three European cities. Results show filter material dictates accuracy: Teflon yielded strong inter-instrument agreement, while quartz caused systematic attenuation errors for light elements. Because empirical corrections left residual biases, using optimal substrates—preferably Teflon—is essential for accurately tracking pollution sources.