Pictures of smoke from a huge fire at a recycling plant at Sherburn-in-Elmet have been picked up by a Nasa satellite.
Up to 15,000 tonnes of material, including tyres, caught light at the plant on Thursday morning.
It has since been contained, but several fire engines are still at the scene and crews and officers continue to monitor the fire.
North Yorkshire Police said the smoke was heading across the moors and towards the east coast, and because the plume was high in the sky the risk of harm to the public was low.
A spokesperson for North Yorkshire Fire and Rescue service said: “Several fire engines are still at the scene and crews and officers continue to monitor the fire, which is contained.
“We will continue to reduce the number of resources on scene as the risk subsides.”
In a Nasa satellite image, a column of smoke could be seen towering into the sky and rising above the cloudy skies over Yorkshire.
A spokesman for Public Health England said: “It is unlikely that there will be any impact on groundwater and there are no drinking water abstractions downstream of the site.”
He added: “Any residents who can smell the smoke are advised to stay inside, and close all windows and doors.”
Public Health England said there had been no reports of any people experiencing ill effects, adding: “However, sheltering indoors provides protection from exposure to smoke, so we advise residents in areas affected...to stay indoors.”
Sherburn Fire as it happened: Wetherby News report - Thursday, January 16:
Sherburn-in-Elmet schoolchildren are being kept indoors and nearby residents have been told to keep their doors and windows closed while fire crews deal with a huge blaze at a recycling plant.
North Yorkshire Fire and Rescue estimate that 1000 tonnes of tyres are ablaze at the site in Lennerton Lane, Sherburn in Elmet, sending a plume of black smoke into the air.
A spokesman has said that 14 fire crews are battling the flames.
A Public Health England spokesman said: “So far, there have been no reports of any people experiencing ill effects from this fire. However, 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. Reports from the scene indicate that the smoke is not affecting areas close to the site at this point in time.
“Anyone who suffers from respiratory conditions, such as asthma, is advised to 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.
“Motorists who have to travel through any smoke should keep windows closed, turn off air conditioning and keep their air vents closed.”
He added: “The emergency services are on-site dealing with the fire and the other agencies involved will continue to monitor the situation and issue any necessary further advice to the public, businesses and organisations affected.”
The fire service are also dealing with a second unconnected blaze on Marston Business Park in Tockwith, two crews from West Yorkshire have been called in to help two North Yorkshire fire engines battle the blaze.
The recycling plant blaze was reported at around 8.30am and fire crews are trying to prevent the fire spreading by using a water curtain cooling method.
North Yorkshire County Council has contacted schools including Sherburn High School, Sherburn Hungate Community School and Kirk Fenton below to advise that pupils and staff should be kept indoors as a result of the fire.