Seated on the University of Leicester’s Space Research Centre rooftop, the novel instrument captures the sun’s rays and uses them to build up a daily picture, in 3-D, of the city’s air pollution. Just the size of a suitcase, the instrument has nine telescopes that protrude out and point in different directions across the city, collecting the sunlight every minute of every day. The trapped sunlight is bounced by mirrors inside the instrument straight into the mouth of a device that measures its properties. These are then used to work out how much light has been absorbed by air pollutants before reaching the instrument.
Crucially for Leicester, the instrument can measure levels of nitrogen-dioxide in the air, a pollutant produced by traffic and one which poses a particular problem for the air quality in the city centre.
Dr Paul Monks, lead scientist on this project said, "90% of the nitrogen dioxide problem in Leicester is attributable to road traffic. Because our instrument looks at the whole city, it can identify when and where the pollution hotspots will occur during a typical day." He added, "The level of detail we have seen is remarkable. For example, one Saturday we could pin-point the cause of air pollution to a football match, owing to the increased volume of traffic. On hot, sunny days when the air is still, such pollution could pose real health problems to residents".
Ather Mirza | alfa
Conservationists are sounding the alarm: parrots much more threatened than assumed
15.09.2017 | Justus-Liebig-Universität Gießen
A new indicator for marine ecosystem changes: the diatom/dinoflagellate index
21.08.2017 | Leibniz-Institut für Ostseeforschung Warnemünde
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...
Pathogenic bacteria are becoming resistant to common antibiotics to an ever increasing degree. One of the most difficult germs is Pseudomonas aeruginosa, a...
Scientists from the MPI for Chemical Energy Conversion report in the first issue of the new journal JOULE.
Cell Press has just released the first issue of Joule, a new journal dedicated to sustainable energy research. In this issue James Birrell, Olaf Rüdiger,...
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