*Donna Summer reportedly felt that her inhalation of toxic air after the Sept. 11th attacks gave her the lung cancer that eventually led to her death, TMZ is reporting.

The website cites sources close to the singer who says the disco queen was living at an apartment near Ground Zero when the buildings fell.

According to TMZ, Summer became almost paranoid about breathing the air, which was heavy with a rancid odor.  And in the months and years following 9/11, her feelings intensified.

The website says another source claims she would constantly spray some sort of disinfectant in the air due to her concerns. Also, Deney Terrio, the host of “Dance Fever,” tells TMZ that when he was around the singer post 9/11, she would hang silk sheets in her dressing room to prevent dust from coming in.

TMZ quotes another source who claims Summer, who was a born again Christian, “believed 9/11 was an attack on Christianity and in some metaphysical way Christians like her were targets.  She somehow felt that her illness was a byproduct of the attack.”

“And, we’re told, after Donna was diagnosed with lung cancer, several people told her that cigarette smoke may have been the culprit — she was a smoker, and she also frequented clubs where people smoked.  But Donna simply didn’t buy it,” TMZ reports.