mechanical and environmental engineer at the University of Colorado Boulder, carefully documented the pollutants produced by cooking and cleaning. The research is part of their House Observations of Microbial and Environmental Chemistry project, a series of controlled experiments to learn more about the chemical processes that occur in homes. Certain kinds of cooking—such as roasting a pan of brussels sprouts in a gas oven—can generate 250 micrograms of fine particulate matter per cubic meter of air, an extraordinarily high level that matches what is sometimes observed in “the world’s most polluted cities,” they reported. The main changes to MARPOL Annex VI are a progressive reduction globally in emissions of SOx, NOx and particulate matter and the introduction of emission control areas to reduce emissions of those air pollutants further in designated sea areas. Although air pollution from ships does not have the direct cause and effect associated with, for example, an oil spill incident, it causes a cumulative effect that contributes to the overall air quality problems encountered by
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