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The UK is set to sizzle this week as a heatwave sweeps across the country but does it ever get too hot to be sent home from work?

The Met Office has forecast that the mercury will reach highs of up to 27C in the UK today and its only going to be slightly cooler on Friday.

Very high levels of pollen and UV mean that hay fever sufferers are in for a difficult time.

Met Office forecaster Mark Foster said it is possible the hottest day for the year for all parts of the UK could be bettered this week.

But how high does the temperature need to go before it becomes too hot to work?

Workers must be protected from the heat

The TUC has called on bosses to make sure staff working outdoors are protected from the sun and the heat.

Workers including builders, agricultural workers and gardeners who are outside for lengthy periods in high temperatures are at risk of sunstroke, sunburn and skin cancer, the union organisation warned.

Is it too hot to work in the heatwave? Your rights on when you can leave the office and go home