Mercaptan is a chemical with an unpleasant smell often added to natural gas which is otherwise odorless. MLGW uses the chemical frequently to alert the public to gas leaks.

Residents in Collierville, Tennessee, and Olive Branch, Mississippi reported strong gas smells in their areas on Wednesday morning, according to the cities. Collierville Fire and Rescue said the ...

The company said crews are transferring a natural gas odorant called mercaptan – a sulfur-containing compound used to give natural gas a detectable odor for safety reasons. The excess smell may ...