For most people in developed countries,the greatest exposure to air pollution comes from being indoors,where structures tend to trap pollutants,keeping concentrations high.How can exposure to these indoor pollutants be reduced?

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The Answer of For most people in developed countries,the greatest exposure to air pollution comes from being indoors,where structures tend to trap pollutants,keeping concentrations high.How can exposure to these indoor pollutants be reduced?

For Most People in Developed Countries,the Greatest Exposure to Air