NEW YORK (WCBS 880) – So, you’re waiting for a PATH train, sitting on a bench when all of a sudden, something enters your nasal passages and it’s not pleasant.

“Rotten eggs. Old socks,” says one man.

READ MORE: Rangers Stay Red Hot, Get 4 Points From Panarin In Rout Of Blackhawks

“Sometimes it smells like urine,” says another.

“Could be a sewer,” says a woman.

“It’s smelled like an old, steep, stank,” says another man.

WCBS 880’s Sean Adams At The 33rd Street Station

READ MORE: NYC Hospitality Alliance: Mayor De Blasio 'Grinch' For Vaccine Mandate That May Keep Tourists With Young Children Away

The smell is a mystery to many. So the New York Times brought in an expert who specializes in eliminating odors.

There’s nothing definitive, but he detected an overall moldy, mildewy stink, probably from damp conditions and poor ventilation.

He also detected a plastic smell from new seats on the trains.

At the 33rd Street station, there was the smell of french fries and ammonia.

In conclusion, there doesn’t appear to be anything dangerous, just a little stinky.

MORE NEWS: Hate Crimes Spike Citywide, New NYPD Data Reveals

What do you think smells worse, the PATH or the subway? Sound off below in our comments section…