85% of operators covered by the Scottish Environment Protection Agency's compliance assessment scheme (CAS) achieved a rating of excellent, good or broadly compliant in 2010.
CAS details how well permitted operators in Scotland have met the conditions of their licences, including operators with pollution prevention and control (PPC) Part A and (for the first time) Part B permits.
Of the 4,075 operators included in the 2010 CAS, 2,951 (72%) were rated excellent, 476 (12%) good and 51 (1%) as broadly compliant.
Of the remaining sites, 354 (9%) were classed as at risk, 200 (5%) as poor, and 43 (1%) as very poor. The figures show an increase in the number of PPC Part A sites achieving a rating of excellent, good or broadly compliant, up 3.5% from 83.4% in 2009.
Next year the figures will also include sites regulated under water resources use, radioactivity and small point source regulatory schemes.
