Posted in NEWS HVAC contractor dead, another sickened after ammonia leak at Massachusetts food plant December 20, 2022 The death and injury came Monday, after a serious ammonia leak at a plant that makes frozen meatballs and other appetizers in Massachusetts. https://nypost.com/2022/12/20/man-68-dead-1-hospitalized-during-ammonia-leak-at-mass-food-processing-plant/