FLINT, Mich. — Health care workers are scrambling to help the people here cope with what many fear will be chronic consequences of the city’s water contamination crisis: profound stress, worry, depression and guilt.

Uncertainty about their own health and the health of their children, the open-ended nature of the crisis, and raw anger over government’s role in both causing the lead contamination and trying to remedy it, are all taking their toll on Flint’s residents.

“The first thing I noticed when I got to Flint, quite honestly, was the level of fear and anxiety and distress,” said Dr. Nicole Lurie, an assistant secretary at the Department of Health and Human Services who has been coordinating the federal recovery effort here since January. On Wednesday, President Obama will pay his first visit to the city since the lead contamination was revealed.

A team of behavioral health specialists from the United States Public Health Service began addressing the mental health problem in February by providing “psychological first aid” training for people interested in helping others cope with the water emergency.