Remove Automobile Remove Clean Remove Ozone Remove Universal
article thumbnail

Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

Green Car Congress

Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

Ozone 150
article thumbnail

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

Green Car Congress

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
article thumbnail

Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

Green Car Congress

They found that levels of pollutants that can contribute to the formation of ground-level ozone, or smog, have failed to continue a fairly steady decline as estimated by the US Environmental Protection Agency. These results show that meeting future air quality standards for ozone pollution will be more challenging than previously thought.

Emissions 150
article thumbnail

Study: Urban grime releases NOx when exposed to sunlight

Green Car Congress

Researchers at the University of Toronto have found that natural sunlight triggers the release of smog-forming NO x compounds from the grime that typically coats buildings, statues and other outdoor surfaces in urban areas. Among these compounds are nitrogen oxides. —James Donaldson.

Ozone 150
article thumbnail

Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

The 1979 Iranian crisis and related oil price shock accelerated Brazil’s conversion of its gasoline supply and automobile fleet. Automobile manufacturers were given tax breaks to produce cars that ran on hydrous ethanol, and, by 1980, every automobile company in Brazil was following this lead. 40 CFR § 80.27 40 CFR § 80.27(d)

article thumbnail

House Chairmen Waxman, Markey Release Draft of Energy and Climate Legislation; Among the Many Provisions Are Cap-and-Trade, Harmonization of CAFE and California Vehicle Regulations, and Low Carbon Fuel Standard

Green Car Congress

The bill also modifies the Clean Air Act to require the development of greenhouse gas emissions standards for all other mobile sources—e.g., A transitioning title intended to protect US consumers and industry and promotes green jobs during the transition to a clean energy economy. Clean Fuels and Vehicles.

Climate 186