Analysis of the relation between between heavy precipitation (90 th percentile) on water protection zones of six waterworks and reported cases of diarrhoea with five and ten days lag was found to be positive in four out of six waterworks.
Greining á fylgni mikillar úrkomu (90. hundraðshlutamörk) á verndarsvæði sex vatnsveitna við tilkynnt tilfelli niðurgangs þar sem biðtími var fimm og tíu dagar fékkst jákvæð fyrir fjórar af sex vatnsveitum.