Jakarta, Sept. 6 -- Griffith University epidemiologist Dicky Budiman has warned of health risks from volcanic ash and advised people on how to safely clean themselves and their surroundings after exposure.

"Volcanic ash differs greatly from ordinary dust because it contains silica resembling sharp glass fragments that can damage exposed organs, including the eyes, nose, mouth and skin," Dicky told ANTARA in Jakarta on Sunday.

Volcanic ash exposure can cause irritation, including red, painful, watery eyes and light sensitivity, and may cause scratches or other eye injuries, he said.

Ash can also cause conjunctivitis, an inflammation of the eye lining that can result in redness, burning and sensitivity to light, Dicky said.

In the respi...