The forecast indicates a declining trend in the percentage of the population connected to sewerage with secondary treatment in France from 2024 to 2028. Starting at 9.3% in 2024, it decreases steadily to 8.2% by 2028. Notably, the year-on-year change from 2024 to 2025 is a decrease of approximately 3.23%, with similar downward trends in subsequent years. The compound annual growth rate (CAGR) over the five-year forecast period shows an average annual decrease.
Future trends to watch for are technological improvements in wastewater treatment and potential policy changes aimed at improving sewerage infrastructure, which could reverse or slow the current decline. Monitoring these developments will be crucial for adjusting forecasts and understanding the potential impacts on environmental sustainability and public health.
