News Show me Show filters Hide filters Choose your topic of interest About OEP Advice and expert opinion Air Blog Chemicals Investigations Marine Nature recovery Northern Ireland Press releases Recruitment Speeches Statements Water quality Keyword search: Sort by Publication date AscPublication date Desc Results: 11 news found Sort by Date - Newest first Date - Oldest first Read news article OEP launches investigation into DAERA’s advice on ammonia emissions 23.05.2023 Tags: Investigations Northern Ireland Press releases Read news article OEP launches investigation into the regulation of combined sewer overflows (CSOs) 27.06.2022 Tags: Investigations Press releases Water quality Page First page « First Previous page ‹ Previous Page 1 Current page 2