Deliberate poisoning of food with tetramethylene disulfotetramine,
an illegal rodenticide, found in food.
Workers on a construction site found and opened old barrels
containing mustard gas. Widespread contamination.
Sudden illness after consumption of sheep meat. Unclear if
infectious or toxic cause.
Outbreak of an illness of unknown cause affecting 200 factory
workers after meal in a restaurant. Possibility of contamination
with a toxic substance considered.
Leak of natural gas and hydrogen sulfide covering an area of
25 km². 28 villages affected; 233 deaths and >9000 hospitalized.