Weatherwatch: How UK firm’s low-cost tech can warn of volcanic eruptions

The Guardian UK Thursday 25 June 2026, 05:00 UTC By David Hambling 1 min read

Key Points

VolcanoTech’s sulphur dioxide detecting sensors are in already in use in a number of countriesWeather forecasts now include air quality warnings and cities have networks of air quality sensors driving real-time maps online. Similar air quality sensors can warn of an imminent volcanic eruption. Just as a fizzy drink releases carbon dioxide when the pressure is released, rising magma emits dissolved sulphur dioxide as it rises.

VolcanoTech’s sulphur dioxide detecting sensors are in already in use in a number of countries

Weather forecasts now include air quality warnings and cities have networks of air quality sensors driving real-time maps online.

Similar air quality sensors can warn of an imminent volcanic eruption. Just as a fizzy drink releases carbon dioxide when the pressure is released, rising magma emits dissolved sulphur dioxide as it rises. So a big increase in this gas warns that a volcanic eruption may be imminent.

UK (LOCATION) VolcanoTech (ORG)

Originally published by The Guardian UK Read original →

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Weatherwatch: How UK firm’s low-cost tech can warn of volcanic eruptions

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