Scientists develop e-nose to detect noxious fumes Scientists develop e-nose to detect noxious fumes Bangalore Mirror Bureau / Updated: Apr 16, 2021, 06:00 IST Picture for representational purpose only Scientists from the city-based Centre for Nano and Soft Matter Sciences (CeNS) have developed an electronic nose with biodegradable polymer and monomer that can detect hydrogen sulphide ( H2S). H2S is a poisonous, corrosive and flammable gas produced from swamps and sewers. H2S is the primary gas produced from the microbial breakdown of organic matter in the absence of oxygen, and this necessitates easy detection of its emission from sewers and swamps. Saudi Arabia, developed an exceptionally