How toxic is YOUR air? Charts reveal pollution levels in cities

Graphs reveal how air pollution has changed since the Industrial Revolution .

99 per cent of the world population still live in areas with dangerously dirty air.

Particulate pollution contributes to one in ten deaths worldwide and has been linked to health conditions including cancer, heart disease and Parkinson's.

UK cities have made significant reductions since hitting a peak in the 1960s .

The average monthly concentration of CO2 in the Earth 's atmosphere is 413 parts per million ( ppm ) CO2 concentration has fluctuated over the last 800,000 years .

CO2 has been vastly accelerated by pollution caused by humans.

It is primarily released from burning fossil fuels such as coal, oil and gas.

Nitrogen dioxide (NO2) is between 200 and 300 times more effective at trapping heat.

Sulfur dioxide (SO2) also primarily comes from fossil fuel burning, but can also be released from car exhausts.

Particulate matter refers to tiny parts of solids or liquid materials in the air, such as dust, which cannot be seen by the naked eye.