Ocean Acidification Dashboard
Surface pH, Ωarag, time-series stations, and IOOS shellfish alerts — ocean is becoming less basic, not acidic.
Compiled daily
Global surface ocean pH (1850–present)
—
total scale
—
ppm (latest daily)
—
<1 = corrosive
—
stations on alert
GOA-ON & IOOS stations
| Station | Type | pH | Ωarag | Δ/decade | Alert |
|---|
Atmospheric CO₂ trend
IPCC projections (pH / Ω)
| SSP | 2050 pH | 2050 Ω | 2100 pH | 2100 Ω |
|---|