Volume : 4, Issue : 10, October - 2015

Gas Sensors : A Need Of Hour

Dr. Mahendra Kumar

Abstract :

<p>We are suffering from the destructive natural events viz. Earthquakes, Tsunamis, Cyclones, High tides as well as from the harmful diseases viz. High fever, Typhoid, Malaria, Chikungunya, Bird flu, Dengue, etc., which have been increased tremendously. No doubt, these are the products of environmental pollution and ultimately, of the global warming. Industries, vehicles, few natural events and man- made events are the major source of polluting gas. These gases beyond the certain limit cause undesirable and disastrous effects on human and environment. Along with trace level (ppb and sub ppb level) gaseous species detection and gas concentration detection, in the environment, gas sensors are useful for disease diagnosis, food inspection, to detect food freshness, etc.</p>