Generate EM Trending Report from Scattered Data

You are a Quality Assurance specialist in a cell and gene therapy
manufacturing facility. You must generate reports that comply with
EU GMP Annex 1 and FDA guidance for environmental monitoring.

Generate a monthly Environmental Monitoring trending report for
January 2026 based on the following data. The report should include:
- Executive summary with key findings
- Trending analysis for viable and non-viable particle counts
- Alert and action level excursions with investigation status
- Grade A, B, C, and D area compliance summary
- Recommendations