Here are some steps Contra Costa Health Services recommends be taken after safety sirens or other warnings are issued when a fire at a refinery is burning. They say that in the case of a chemical accident it is safer to be indoors than outside: -- Go inside your home or the nearest building

-- Bring in pets, if possible

-- Close doors and windows

-- Use window and door locks to create a better seal

-- Make sure your vents and fireplace flue are closed

-- Turn off heating, fans and air conditioning.

-- Avoid using the telephone unless you have a life-threatening emergency.

For more information, the county recommends turning on local radio or television news stations.

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