CSE4001 Study Guide - Particle Size, Particulates, Desulfurisation
23 Dec 2022
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Examples include cigarette/cigar smoking, sniffing of glue and many other practices which can cause damage to the human body. Classification of ambient air pollutants: particular matter (pmx, sulfur containing compound (so2, nitrogen containing compounds (no2, no3, No, n2o3, n2o4, n2o, n2o5: organic compounds (voc, carbon monoxide, halogen compounds (br, f, i, etc, radioactive compounds, photochemical oxidants (o3, peroxyacetyl nitrate- pan, peroxybenzol nitrate pbn, h2o2, Hcooh, ki: other inorganic compounds (pb, ar, as, etc) Primary pollutants: directly emitted from sources, carbon monoxide (co) Created by incomplete combustion (especially bad with older cars) Generates headaches, drowsiness, fatigue, can result in death: oxides of nitrogen (nox, no) Emitted directly by autos, industry: sulfur oxides (sox) Responsible for acid rain problem: volatile organic compounds (vocs) Release through incomplete combustion and industrial sources: particulate matter (dust, ash, salt particles) Secondary pollutants: form in the atmosphere through chemical and photochemical reactions from the primary pollutants, sulfuric acid h2so4. Can cause respiratory problems: nitrogen dioxide no2.
