Revealed: sewage overflow in English and Welsh national parks twice outside rate

Exclusive: Campaigners attack outrageous' situation, saying waters in protected areas should be cleanest

Sewage is pouring into the rivers inside national parks at twice the rate that is occurring outside the protected areas, it can be revealed.

Campaigners described the situation as outrageous" and said rivers and lakes in national parks in England and Wales should be the cleanest and most protected in the country.