California France Ozone Pollution 
Green Car Congress
FEBRUARY 6, 2018
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. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.
Green Car Congress
JANUARY 21, 2010
Springtime ozone distributions for 1984, 1995–2008 in the mid-troposphere (3.0–8.0 Springtime ozone levels above western North America are rising primarily due to air flowing eastward from the Pacific Ocean, a trend that is largest when the air originates in Asia. The US EPA recently proposed new tougher ground-level ozone standards.
Green Car Congress
APRIL 19, 2013
A study by a team of researchers from France and the US found that the origin of volatile hydrocarbons, other than methane, present in city air is mainly gasoline-powered vehicles. times greater than in Los Angeles due to the greater overall volatile hydrocarbon pollution in the latter city. Borbon, A., Gilman, W. Chevaillier, A.
Green Car Congress
MARCH 16, 2012
eutrophication; ET = ecological toxicity; FEC = fossil energy consumption; WU = water use; LO = land occupation; “The rest” includes acidification; smog formation; ozone layer depletion; and human health effects. GW = global warming; Eut. Credit: ACS, Yang et al. Click to enlarge. Process flow diagrams for E85 and gasoline.
Cars That Think
AUGUST 16, 2021
The main obstacles will be regulatory and, especially, environmental: Supersonic airliners could be hugely more polluting than their subsonic counterparts. That continued until 2003, when British Airways and Air France retired their fleets, together amounting to just 12 aircraft.
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