However, they can also havevery bad effectson your health.

Now, his breakthrough invention has earned him the title ofAmericas Top Young Scientist.

My parents always insist that I wash my produce before consuming it.

Sirish Subash during 3M Young Scientist Challenge presentation

Sirish Subash

I wondered, how necessary is this really, and how effective is the washing, Subash toldMPR News.

Does it really work to ensure that your produce is clean?

This inspired him to createPestiscand, an AI-based handheld pesticide detector.

Sirish Subash during 3M Young Scientist Challenge presentation

Sirish Subash

Pestiscand works via spectrophotometry, measuring how light of different wavelengths bounces off the surface of produce.

Oftentimes there are these residues from pesticides that are found on produce.

Subash had the support of mentor Aditya Banerji, a senior research engineer in 3Ms Corporate Research Process Laboratory.

Sirish Subash during 3M Young Scientist Challenge award ceremony

Sirish Subash, Torie Clarke, and Brian Shaw

As the grand prize winner, Subash was awarded a $25,000 cash prize.

I am beyond impressed and inspired by their intelligence and their scientific minds.

Pestiscand works via spectrophotometry, measuring how light of different wavelengths bounces off the surface of produce.

Sirish Subash during 3M Young Scientist Challenge award ceremony with mentor

Sirish Subash and mentor Aditya Banerji

Sirish Subash during 3M Young Scientist Challenge award ceremony

Sirish Subash