The number of pesticide breaches detected in public water supplies has increased by 86% compared with the same period last year.

Irish Water found 15 breaches of pesticide limits up to 22 May this year, compared to just two breaches in the same period last year. It said that 2018 had been an exceptionally low year for pesticide exceedances but pointed out that MCPA, the commonly used spray for rushes, accounted for 75% of all breaches last year.