Within the United Kingdom, researchers revealed that approximately 55% of the population lived where the sound level exceeded the recommended level of 55 dB Leq in the daytime and 67% lived where the sound level exceeded the recommended level of 45 dB Leq at night. About 20% of London residents were exposed to environmental noise near their home that was above 60 dBA Leq. All of these environmental noise exposures have led to higher increases in blood pressure within the UK population.