Polluted air can contribute to the development of asthma and other conditions, and the first step toward combating its effects is continuous, accurate monitoring. Most measurement devices are stationary, placed just feet above the ground, but contaminants can drift away. Now, researchers publishing in Analytical Chemistry have developed a “lab-on-a-drone” system that, unlike similar gadgets, can detect and analyze levels of pollutants, such as smelly hydrogen sulfide gas, all while still floating in mid-air.
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Source: Phys.org