Specialist machinery has been brought in to break up a huge mound of smouldering melted plastic after a blaze at an industrial estate in Sheffield.
The fire broke out in a disused unit on Station Road, Ecclesfield, on Wednesday night and is still smouldering today.
Fire chiefs have stepped up their firefighting efforts this morning, bringing in extra crews, but warned residents to expect more smoke in the area because of the extra activity to douse the flames.
South Yorkshire Fire and Rescue bosses drew up the firefighting plan for the blaze with the Environment Agency and Public Health England to reduce the risk of air and water pollution.
A Public Health England spokesman said: “Public Health England has not received any reports of people experiencing ill effects from this fire.
“However, we are working closely with the NHS to monitor the situation and provide any necessary advice.
“Sheltering indoors provides protection from exposure to smoke, so we advise residents in areas affected by smoke from the fire to stay indoors and keep their doors and windows closed as much as possible
to limit any exposure to smoke.
“Chemicals in the smoke can worsen existing respiratory conditions, such as asthma.
“People with asthma or other respiratory conditions should carry their inhalers and ensure they have taken any prescribed medication and keep it to hand. If you are concerned about the effects of smoke on
your health, telephone your GP or call 111 for advice.”
Station Road was closed to traffic on yesterday, leaving neighbouring businesses unable to trade, but it was partially re-opened this morning.
One business, a car spray painting firm, suffered serious damage when flames from the blaze spread.