Patients with respiratory conditions are more susceptible to effects of ash -WHO

Accra, May 14, GNA - The World Health Organisation (WHO) has observed that people with chronic respiratory conditions like asthma, emphysema or bronchitis might be more susceptible to irritation if ash in the lower atmosphere was in high concentrations.

A statement issued by the WHO and copied to Ghana News Agency in Accra said the ash cloud from the volcanic explosion in Iceland contained fine particles, similar to those emitted from other sources of Particulate Matter (PM); but as ash remained in the upper atmosphere, there would not be an increased risk of health effects.

Dr. Maria Neira, Director of Public Health and Environment Department at the WHO said, "PM is identified according to its diameter. The small particulates less than 10 microns in size are more dangerous because they can penetrate deeper into the lungs.

"Analysis of the ash is on-going and so far it is estimated that about 25 per cent of the particles are less than 10 microns in size," she added. Dr Neira said since the ash concentration might vary from country to country, depending on the wind and air temperatures, the advice was to listen to local public health officials for the best guidance for individual situations.

She urged people who stayed outside and noticed irritation in their throat and lungs, a runny nose or itchy eyes to return indoors and limit their outdoor activities.

Dr. Neira advised that in case of increased air pollution, normal precautions such as avoidance of strenuous exercise should be undertaken by people with asthma and respiratory symptoms. "WHO would remain in contact with experts monitoring air quality in the affected region, and advice people to follow the latest guidance from their local health officials," the statement said.