AIR pollution in South Yorkshire has prompted a health warning for people with asthma and heart problems.
DEFRA has warned that the polluted air - which will sit over the area on Friday - could cause fatal asthma attacks and has advised the elderly and those with problems to be cautious.
A spokesperson said: "Adults and children with lung or heart problems should reduce strenuous physical exertion, particularly outdoors, and particularly if they experience symptoms.
"Anyone experiencing discomfort such as sore eyes, coughs or a sore throat should consider reducing activity, particularly outdoors.
"People with asthma may find they need to use their reliever inhaler more often."