The world has become increasingly industrialized over the past few centuries, bringing all sorts of technology and conveniences to the masses. However, workers in industrial environments are often at risk of exposure to many dangerous gases, such as nitrogen dioxide (NO2). Inhaling this gas can lead to serious respiratory diseases like asthma and bronchitis, and severely compromise the health of industrial workers. Constant monitoring of NO2 levels is thus needed to ensure a safe workplace.
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Source: Phys.org