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Measuring Air Pollution

imageAir pollution has become one of the major problem of many cities, affecting billions of people around the globe. Among all the noxious pollutants in air, fine particles with a diameter of 2.5 micrometers or less (Particular Matter(PM) 2.5) are the most harmful for human health because they are small enough to penetrate the lung, leading to premature death from heart and lung disease. PM2.5 particles come from activities that burn fossil fuels, such as traffic, which are abundant in urban areas. Continue reading Measuring Air Pollution