11. If available, information on collection efficiency ( share of water bills actually paid ) should be included. 12. Second, threshold electrons are stationary and can be detected with higher collection efficiencies , thereby increasing signal levels. 13. In May 2016 Enevo announced that Rotterdam City had increased collection efficiency significantly by using Enevo's solution. 14. Higher particle-collection efficiencies can be achieved in such cases since collection mechanisms other than inertial impaction occur. 15. Consequently, the total liquid surface area for contact is reduced, reducing the collection efficiency of the scrubber. 16. Venturi scrubbers have been designed to collect particles at very high collection efficiencies , sometimes exceeding 99 %. 17. Such a probe has a high signal collection efficiency ( > 90 % ) and no frequency cutoff. 18. This higher particulate-to-liquid relative velocity increases particulate collection efficiency for this device over that of the spray chamber. 19. Theoretically, the smaller the droplets formed, the higher the collection efficiency achieved for both gaseous and particulate pollutants. 20. Furthermore, ? and d 1 affect the ionization efficiency, while ? and d 2 affect the collection efficiency .
