Anhydrous Ammonia Chemical Release — Lake County, Illinois, April 2019

Abstract

© 2020 Department of Health and Human Services. All rights reserved. What is already known about this topic? Exposure to anhydrous ammonia gas can cause severe respiratory and ocular damage. What is added by this report? At least 500 gallons (1,893 L) of anhydrous ammonia gas was released from two tanks towed by a farm tractor in a residential area, resulting in evaluation of 83 persons at local emergency departments. Fourteen persons were hospitalized, including seven patients with respiratory failure. What are the implications for public health practice? Preparation for hazardous materials (hazmat) responses should ensure 1) timely and informative public communication, 2) effective communication among first responders, 3) accurate field information provided to health support personnel, and 4) regular hazmat exercises for all response and support personnel.