INSIGHTS
New evidence, made useful.
Thoughtful analysis of new research, reports and guidance on oil spills. See what the evidence shows, where it applies and what remains uncertain.
LATEST INSIGHT
A closer look at the evidence.
WATER MONITORING · NORTHERN IRELAND
What water monitoring can tell us about pollution sources
An NIEA monitoring report shows why a detection or exceedance alone cannot identify its source. We examine upstream and downstream results, groundwater evidence and the site context.
THE TAKEAWAY
A result needs a story.
Source, pathway, sampling location and timing all shape what a result can tell us. This report is a useful example of interpretation, not a template for a domestic heating-oil investigation.
Analysis of a published monitoring example · Report dated 2 September 2026 · Northern Ireland
WHAT WE FOLLOW
Three ways to follow the evidence.
Insights examine developments that add something useful to established guidance. As the collection grows, you will be able to explore each theme in more depth.
01 / TECHNICAL PRACTICE
Assessment and remediation
How investigations, sampling, monitoring and treatment decisions develop in practice.
02 / REGULATION & GUIDANCE
Rules and official guidance
Material changes in agency guidance and responsibilities across the UK and Ireland.
03 / RESEARCH & CASE LESSONS
New evidence in context
Research and monitoring examples, with clear limits on applying them to individual spills.
INSIGHT ARCHIVE
Explore every published insight.
A growing collection of sourced analysis. Each piece sets out the evidence, practical significance and limits of its application.
28 SEPTEMBER 2026 · RESEARCH & CASE LESSONS
What water monitoring can tell us about pollution sources
Why upstream, downstream and groundwater evidence must be read together.
LOOKING FOR PRACTICAL GUIDANCE?
Start with the Knowledge Hub.
Our guides explain the lasting principles and next steps. Insights examine particular new reports and developments.