The World Health Organisation (WHO) has issued advice to emphysema and asthma sufferers about the potential effects of volcanic ash.

Particles from the volcanic ash could reach deep into the lungs should the ash begin to settle which would cause health problems for people with chronic lung conditions.

“From what we know at the moment, the majority of cloud ash is seven to 10km high up in the atmosphere,” said Daniel Epstein, a spokesperson for the WHO speaking to The Independent.

“Air quality monitoring networks have not yet reported particulate on the ground but, if it does reach the ground, it may have health effects.

“People with existing respiratory conditions such as asthma, emphysema and bronchitis should avoid breathing in these particles.

“They should have their inhalers and other medication with them.”

The UK’s Health Protection Agency has said this is in line with its own advice and people with respiratory problems should ensure they have any medications with them at all times.

The British Lung Foundation has said there is no significant risk to public health but reiterated the advice about people with lung problems carrying their medications should symptoms worsen.