article thumbnail

TOAR shows present-day global ozone distribution and trends relevant to health; public database

Green Car Congress

Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Source: University of Leicester. Click to enlarge.

Ozone 255
article thumbnail

Texas study finds PHEV use could increase ozone at night, decrease ozone during the day

Green Car Congress

A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours.

Ozone 218
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

MIT study: half of US deaths related to air pollution are linked to out-of-state emissions

Green Car Congress

Barrett and his colleagues developed such tools, drawing on fundamental work by Daven Henze at the University of Colorado at Boulder, to track how every state in the contiguous US affects pollution and health outcomes in every other state. and/or ozone. and/or ozone. —Steven Barrett.

MIT 307
article thumbnail

Plug-in hybrid cars to increase ozone at night

Green Cars News

Researchers at the University of Texas believe that the use of plug-in hybrid electric vehicles will increase ozone during night-time hours while decreasing ozone during the day. Ozone is formed as hydrocarbons and nitrogen oxides react with sunlight as they are emitted into the air.

Ozone 48
article thumbnail

Researchers suggest that air quality tests need simplifying to help reduce dangerous emissions

Green Car Congress

Lead author Professor William Stockwell from the University of Texas at El Paso explains that accurate simulations of air pollutants require updated and accurate descriptions of the chemical processes for the changing chemical regimes of the atmosphere and emerging contaminants of concern.

Emissions 170
article thumbnail

Test of Planet-Cooling Scheme Could Start in 2022

Cars That Think

Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather? about 0.6 °C.

Ozone 123