The figures come as Greenpeace activists made the headlines after climbing Nelson's Column in London's Trafalgar Square and attaching gas
masks to the monument in protest over the number of air pollution deaths.
Environmental activists in UK Showed their anger about the level of air pollution in the country by attaching gas
masks to statues across the capital city of UK, London, including those of Oliver Cromwell and Winston Churchill outside the British Parliament, Metro reported.
They collected samples of air at different altitudes and various times of day by attaching gas
flasks to tethered balloons.