The biggest problems in this area are the oil shale sector in north-east Estonia, including mines, power stations and oil shale production, as well as the chemical industry, cement manufacturing and pig farms.
Enim probleemseks peetakse Kirde-Eesti põlevkivisektorit, sealhulgas kaevandusi, elektrijaamu, põlevkiviõli tootmist, samuti muud keemiatööstust, tsemenditootmist ja ka seafarme.