Late singer had complained that toxic dust containing lead, asbestos and Mercury was the reason for her ill health.
Donna Summer believed the 9/11 terrorism acts contributed to her lung cancer.
The star died aged 63 yesterday (17.05.12) and according to reports she had complained that toxic dust containing lead, asbestos and Mercury was the reason for her ill health.
Donna - who passed away in Florida - was in a nearby apartment building in New York City on the day of the attacks in 2001.
According to The Sun, the devout Christian had previous said: ''I was really freaked out by the horrific experiences of that day.
''I couldn't go out, I didn't want to talk to anybody. I had to keep the blinds down and stay in my bedroom. I went to church and light came back into my soul. That heaviness was gone.''
Apparently the 'I Feel Love' singer had a premonition about the tragic events.
She recalled in 2008: ''My husband and I were walking down the street. I had this feeling. I said, 'Honey, I feel like terrorism, high on top of the buildings.'
''I knew something was going to happen. When it did, I flipped out.''
It is believed around 1,000 people exposed to the dust have died -- 350 of them from cancer.
Dr John Howard, the 9/11 Federal Health Director, said: ''I think it is plausible that many people will die of the many conditions we've seen due to their exposure.''