Environment in Merthyr Tydfil

Merthyr Tydfil in Wales scores 71/100 (very good) for environment, measured against the national average — a score of 60 is typical for the country.

Green spaces

200

Deprivation decile

4

NO₂ (µg/m³)

5.3

Flood Zone 3 (% area)

4%

Road noise ≥55 dB (% area)

32%

Road-traffic noise is shown for Wales; rail and aircraft noise aren't openly published as data.

Only the storm overflows Dŵr Cymru reports to the Environment Agency are shown for Wales; their Wales-wide monitoring return isn't yet included. Dŵr Cymru / NRW Event Duration Monitoring

How we measure this·Guide: What makes a good neighbourhood?

Data last updated: 19 October 2026