EPA names four worst phosphorous river pollution areas

EPA water testing indicates that phosphorous river pollution is worst in Monaghan, Dun Laoghaire-Rathdown, Offaly and Kilkenny, with less than 50% of river stations compliant in each county.

There was a relatively high level of compliance (at least 70%) in Dublin City, Cavan, South Dublin, Roscommon, Cork County, Westmeath, Kildare and Mayo.

Counties with a relatively large number of non-compliant lakes include Monaghan (31 non-compliant lakes), Cavan (14), Clare (14), Leitrim (9), Cork (7), Longford (6).