Hydrogen economy offers low-emissions fuel to combat air pollution
(Gas Processing and LNG) The air quality indexes (AQIs) and particulate matter (PM) concentrations in many fast-developing countries and regions are climbing to high levels that are considered extremely hazardous to public health and the environment. For example, the AQI of New Delhi, India was recently assessed above 300 (severe), and PM2.5 (aerodynamic diameter < 2.5 µm), PM10 (aerodynamic diameter < 10 µm) concentrations also reached extremely hazardous levels. The reasons for these rising air pollution levels include wind-spread burning of agricultural waste, rising vehicular emissions as car ownership increases; industrial and municipal solid waste emissions; and diesel generator
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