Air Quality Monitoring

The ambient concentration of volcanic ash in the atmosphere has major impacts on hazard assessment and decisions on habitable areas following an eruption. The acceptable concentrations of volcanic ash in the atmosphere are set in accordance with air quality standards and exposure limits for the country affected. The Soufriere Hills volcano, Montserrat, West Indies, has been producing airborne ash since the onset of the current eruption in 1995. An extensive programme of Air Quality Monitoring has been set up on the island, allowing long-term assessment of concentrations of atmospheric dust concentrations as well as warning the population and air traffic control in the event of 'alert level' concentrations immediately following an eruption.

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Download our pamphlets on preparing for ashfall and on the health hazards of ash. They are designed for mass distribution at the onset of new eruptions. They are now avaiable in English, Japanese, French Spanish, Portuguese, Swahili, Indonesian and Icelandic with Italian versions being available shortly. Please see our Pamphlets page for further infomation.





IVHHN has an article under the Guidelines tab which used to be called 'Recommended Face Masks'. This has now been updated to 'Information on face masks' and is an interim page whilst the Health Interventions in Volcanic Eruptions project investigates which types of respiratory protection are effective in protecting the general population from volcanic ash inhalation. Please note that the translations in Spanish, Japanese and Portuguese have not yet been updated.



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