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CU Boulder study: routine household activities generate air quality on par with major polluted city

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Cooking, cleaning and other routine household activities generate significant levels of volatile and particulate chemicals inside the average home, leading to indoor air quality levels on par with a polluted major city, according to a study by researchers at the University of Colorado Boulder. Earlier post.).

Pollution 207
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HEI launches two new non-tailpipe particulate emission studies

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Emissions from automobile exhaust systems have decreased in recent years due to the introduction of cleaner fuels and new control technologies on internal combustion engines, as well as increases in numbers of hybrid and electric vehicles. 10 ) of urban air, a fraction known to be enriched with non-tailpipe constituents.

Emissions 353
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New Comprehensive Lifecycle Energy and Emissions Inventory Includes Non-Operational Components; Large Aircraft Can Perform Better than Light Rail

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Inventorying criteria air pollutants showed that vehicle non-operational components often dominate total emissions. Life-cycle criteria air pollutant emissions are between 1.1 All components appear in the order they are shown in the legend.). Chester and Horvath (2009). Click to enlarge. and 800 times larger than vehicle operation.

Light 150
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National Academies Report Examines Hidden Cost of Energy Production and Use in US; Estimates $120B in 2005

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Health and other non-climate damages by life-cycle component for different combinations of fuels and light-duty automobiles in 2005 (top) and 2030 (bottom). GHG emissions (grams CO 2 -eq)/VMT by life-cycle component for different combinations of fuels and light-duty automobiles in 2005 (top) and 2030 (bottom). Click to enlarge.

2005 246