Columbia subject headings:
Air--Pollution.
Chemical industry--Accidents.
Chlorophenols--Environmental aspects.
Chlorophenols--Toxicology.
Tetrachlorodibenzodioxin--Environmental aspects.
Tetrachlorodibenzodioxin--Toxicology.
Harvard subject headings:
Air--Pollution
Chemical industry--Accidents
Chlorophenols--Environmental aspects.
Chlorophenols--Toxicology.
Tetrachlorodibenzodioxin--Environmental aspects.
Tetrachlorodibenzodioxin--Toxicology.
Princeton subject headings:
Air--Pollution.
Chemical industry--Accidents.
Chlorephenols--Environmental aspects.
Chlorophenols--Toxicology.
Tetrachlorodibenzodioxin--Environmental aspects.
Tetrachlorodibenzodioxin--Toxicology.