Related Clues:

• Organic compound excreted in urine
• A more common term for potassium carbonate
• River has a chemical found in pee
• Acceptable answer about concerning waste product
• Donkey to value fertiliser
• Bullets turned in, plus a chemical used in explosives
• Fertiliser deriving from potassium
• Fertilizer upended in art gallery without right
• Compound doubling metal price
• American mineral water in Barking but not Washington!
• Pungent gas in area: more complaining heard
• Chemical drugs containing poisonous element
• Reported out-of-hours charge for fertiliser, perhaps
• Waste found in area by northern river
• Toxic chemical found in gammon I ate