Residents are hoping air sample tests can explain why their western Pennsylvania city smells like cat urine.
New Castle residents began noticing the smell Nov. 1 in the city about 45 miles northwest of Pittsburgh. Weeks later, the New Castle News says the smell is still lingering near a sewage treatment plant in the city’s Mahoningtown neighborhood.
State environmental officials don’t believe the odor is harmful, but they don’t yet know what’s causing it.