Lead poisoning: zoo animals may be the first victims.
D000397:Air Pollution; D000818:Animals; D000836:Animals, Zoo; D002335:Carnivora; D007854:Lead / Q000032:analysis; D007855:Lead Poisoning / Q000517:prevention & control / Q000662:veterinary*; D009519:New York City; D010150:Paint / Q000032:analysis; D014505:Urban Population
D007854:Lead