The sulphur dioxide cloud that enveloped the UK on Saturday morning is expected to return and hover over parts of the UK throughout Tuesday and Wednesday.

MailOnline was the first to report on the toxic cloud that hovered over the country on Saturday morning and was caused by the volcanic eruption in Iceland on Thursday.

The main part of the cloud has now moved away to parts of Europe, and at 2am on Monday morning part of it still covered the Scottish Highlands.

However, another part of the cyclone is expected to return on Tuesday and Wednesday, affecting parts of the Midlands and the South.

The second wind will reach the UK from around 6am on Tuesday and will slowly spread across the low-lying and central parts of the country until it completely subsides around 7pm on Wednesday, according to data from Czech weather portal Windy.

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The second wind approaches Britain on Tuesday morning around 6am

During Tuesday and Wednesday it will slowly cover the lower and middle parts of the country. Pictured: The predicted direction of the plumes at around 7pm on Tuesday evening

The skies over Great Britain are expected to be completely clear of the SO2 cloud by around 7pm on Wednesday evening.

Sulfur dioxide (SO2) is mainly produced by the combustion of coal or petroleum. But volcanoes also emit large amounts of it when they erupt.

Inhaling the gas can cause symptoms such as sore throat, cough, runny nose, burning eyes, tightness in the lungs and difficulty breathing.

The colorless gas has an irritating, pungent odor (known as the smell of a freshly lit match) and can also cause stinging pain, redness and blistering if it comes into contact with the skin.

Direct exposure to SO2 has been linked to asthma and chronic bronchitis, with the SO2 released from coal combustion during the London smog of 1952 playing a key role in the thousands of deaths from respiratory disease at that time.

In addition, SO2 can combine with water vapor in the Earth’s atmosphere to form acid rain, which can travel long distances.

Older people are particularly vulnerable to inhaling SO2 and the charity Asthma and Lung UK states that more asthmatics are admitted to hospital with asthma attacks when high levels of the gas are present.

The Met Office said yesterday that it was “monitoring” the original gas cloud and that it was expected to have “only a minor impact on air quality near the ground”.

Pictured is a windy weather map showing the gas that covered the UK at around 1.30am on Saturday

Lava flows from the new fissure on the Reykjanes peninsula, near the town of Grindavik

Lava splashes and flows after the eruption of a volcano on the Reykjanes peninsula near Grindavik

In addition, young children may be more sensitive to the effects of SO2 due to their smaller size, a government document says.

In June, experts said a non-explosive rupture on Iceland’s Reykjanes peninsula may have caused an “unprecedented” rise in SO2 levels in Edinburgh, not seen since the 1970s.

Senior air pollution modeller at the UK Centre for Ecology and Hydrology, Dr Massimo Vieno, said the damage to the environment was likely to be “minimal”, the BBC reported.

He said: “This was a highly unusual event that occurred over a very short period of time.”

“We basically had a big explosion in Iceland that coincided with just the right wind configuration to bring the plume from the Reykjanes peninsula to Scotland, and particularly to Edinburgh.

“It is a truly unique event.”

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