The water quality of the Don was as follows in 2019. Section Ecological Status Chemical Status Length Catchment Like most rivers in the UK, the chemical status changed from good to fail in 2019, due to the presence of polybrominated diphenyl ethers (PBDE), perfluorooctane sulphonate (PFOS) and mercury compounds, none of which had previously been included in the assessment.
The water quality of the Don was as follows in 2019. Section Ecological Status Chemical Status Length Catchment Like most rivers in the UK the chemical status changed from good to fail in 2019, due to the presence of polybrominated diphenyl ethers (PBDE), perfluorooctane sulphonate (PFOS) and mercury compounds, none of which had previously been included in the assessment.