Over half of working nurses think their wards are "dangerously unsafe" because of low staffing levels all or some of the time, according to a snapshot survey.
The poll carried out for the Nursing Times magazine found 57% of the 526 nurses questioned believed their ward was dangerous for patients because there were too few staff.
A further 39% of nurses said staffing levels had worsened where they work over the last 12 months.
The findings come a year of the Francis Report into the failings at Stafford Hospital was published, after hundreds of people died needlessly due to neglect.
One nurse told the magazine: "Although my organisation has been recruiting more nursing staff they have been inexperienced and have had to be supervised, so in some cases have made matters harder."
More top news
Gulf War veteran Paul Briggs' widow, Lindsey, 40, launched legal action to have his life support withdrawn so he could "die with dignity".
Rescue workers are at the site Sunday morning trying to cut open mangled coaches.
Despite chilly temperatures it will be a mostly dry day, and milder than yesterday.