Buzz
With a Ph.D. in analytical chemistry and an extraordinary sense of smell, Ned Ostojic has carved out a unique career. Over the years, he has specialized in 'odor measurement and control,' assisting pet food manufacturers, tuna canneries, and other industries prone to strong odors. His job involves identifying offensive smells and determining their sources. Scientific American recently highlighted Ostojic's work, showcasing his expertise in tracking down and neutralizing unpleasant aromas.
The intricacies of smell are fascinating. Our olfactory system is equipped with specialized cells known as olfactory sensory neurons, each containing a unique odor receptor. These receptors detect airborne molecules and send signals to the brain, allowing us to identify scents. However, the vast array of smells in the world far exceeds the number of receptors we possess, leading to complex combinations of receptor activations. This complexity makes it challenging to precisely define and isolate specific odors.
To tackle this challenge, Ostojic employs an olfactometer—a device designed to measure odor concentration and intensity. For instance, he successfully resolved a persistent odor issue at Brooklyn’s Newtown Creek Wastewater Treatment Plant by designing a ventilation system that neutralized the foul smell from the aeration tanks. His expertise is also sought after by Michigan car factories dealing with paint fumes and Kentucky landfills battling the stench of decomposing waste.
Modern technology enables Ostojic and his team to identify and study odor-causing compounds, yet the reason why certain smells are unbearable to some while acceptable to others remains unclear. Ultimately, the perception of smell is highly subjective, and even an expert like Ostojic, who specializes in odors, cannot dictate how individuals experience scents.
