© Licensed to London News Pictures. 08/04/2019. LONDON, UK.  An illuminated sign reminds drivers in Southwark that the Ultra Low Emission Zone is now in force 24 hours a day.  Coming into effect on 8 April, within the same area of central London as the Congestion Charge, most vehicles, including cars and vans, need to meet the ULEZ emissions standards or their drivers must pay a daily charge to drive within the zone.  The ULEZ is an initiative to improve air quality and public health in central London and is supported by the Mayor of London.  Photo credit: Stephen Chung/LNP
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