Julian Harper | Memphis Tourism

The Shelby County Health Department said there is โ€œno single sourceโ€ responsible for odor concerns across the county and city of Memphis.

Health officials said the odor is believed to be the result of โ€œtemporary weather conditionsโ€ including high humidity, fog, and high pressure. The department noted their meteorologists said these factors caused odors to linger โ€œclose[r] to the groundโ€ for longer periods of time.

โ€œThose weather conditions have changed, and the odors have dispersed,โ€ the Shelby County Health Department said in a statement. 

The department said their team will continue to work with local officials to deal with possible sources.

Complaints about a smell permeating around Memphis surfaced over the weekend on social media. A Reddit thread with over 120 comments discussed the odor.

โ€œIโ€™ve lived downtown for over 15 years and this smell happens every once in a while, but tonightโ€™s smell is the [worst]  Iโ€™ve ever experienced,โ€ one Redditor commented.

Netizens near Midtown also expressed concerns.

Chief Meteorologist at WREG Channel 3, Tyler Eliasen, took to social media on Tuesday and said while he couldnโ€™t pin the source of the smell, the reason more people were aware of it was due to โ€œtemperature inversion.โ€

He explained that warmer air can exist โ€œa few thousand feet above our headsโ€ during colder months, as opposed to cooler temperatures usually existing at that level.

โ€œThis โ€˜inversionโ€™ acts like a lid and traps pollution, smoke, dust, and yes, even smells near the ground,โ€ Eliasen said in a post.

The Shelby County Health Department said citizens experiencing โ€œsimilar odorsโ€ should contact the Shelby County Mayorโ€™s Action Center at 901-222-2300.