In a science article published last Friday reference was made to a daily intake of 400mg (milligrams) of folic acid. The amount should have been 400 micrograms.

A report in Saturday's editions headed "Pupils in 13 schools at risk from radon" included St Brigid's, Greystones, Co Wicklow, as a school mentioned in Department of Education documents. Sister Kathleen, principal of the school, states that the school was told it was not at risk after an official inspection.

When errors occur it is the policy of The Irish Times to correct or clarify as soon as it is practicable.

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