In the poll -- conducted at Elon University -- Edwards received a 43 percent approval rating in April, while in February he received a 53 percent approval. In October, the figure was 57 percent.
The Elon Institute of Politics and Public Affairs administered a poll surveying a pool of N.C. voters from April 15 to April 18.
Edwards is a potential candidate for the Democratic nomination for president in 2004, but only 41 percent of those surveyed said they would support Edwards in a bid for the presidency.
Sharon Spray, a political science professor at Elon University, said that although the ratings do not reflect well upon Edwards, they will not affect his potential presidential bid.
"(The ratings) won't affect it at all," Spray said. "Polls are not good predictors of how people feel in a year. Don't place too much emphasis on the ratings. It is only a snapshot of how people feel right now."
Spray added that the ratings might reflect unbalanced media.
"He is not getting enough credit in the papers," she said. "He is getting more publicity for time out of Washington. He hasn't had enough high-profile policies."
Spray said she thinks Edwards' recent emphasis on reviving the textile industry in North Carolina will bring more attention to his efforts to serve the state.
"I don't think (his attempts in textile) will play a big part in the presidential bid," Spray said. "It will help him get recognition in North Carolina. I think it is a good move."