Susan Allan and her son were driving through British Columbia's Kelowna on May 9 when they stopped at a red light. The car's windows were down and the sunroof was open. "We were inundated with poop," she told Vancouver Sun. "It was coming from the sky, covered my car, and got in my face and in my mouth."
She told The Guardian that she initially thought the sticky brown mess was a pile of mud.
Then, the pair were hit by a horrid smell.
"You could tell it was feces because it smelt like poop. But there was also a hint of chlorine. It was the strangest smell," Ms Allan told the Guardian
The brown liquid splattered across the hood and backseat of Ms Allan's car, as well as the cars behind her, and in adjacent lanes, reported Vancouver Sun.
She looked up and noticed an aircraft flying overhead.
According to Global News, the two headed straight for the nearest car wash where they sprayed off both the car and themselves.
Three days later, another Kelowna resident found brown splatters on his car, which was parked outside his home. Brett Yates said he also found similar splatters across three other vehicles nearby. "It smelt pretty disgusting," Mr Yates told Global News. "I had no explanation for it. It puzzled me for a day and then I put it out of my mind until I started seeing stories about other incidents."
Transport Canada - which oversees aviation in the country - says it is investigating the bizarre incidents.
In a statement to CBC Radio, the department suggested frozen lavatory waste, known as "blue ice," may be to blame.
Human waste can sometimes leak out of sewage holding tanks in planes. "If this happens, the liquid seeping from valves freezes and adheres to the outside of the aircraft when the aircraft is flying at high altitudes," stated Transport Canada.
"As the aircraft starts its descent and the atmosphere gets warmer, the ice will start to melt and pieces will detach themselves from the aircraft. These pieces of ice will either melt or remain in their solid state before hitting the ground."
It is often called "blue ice" because of the chemicals added to airplane toilets to reduce odour and breakdown of the waste. Click for more trending news
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