2000 Cleaning Emissions Ozone 
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. Source: University of Leicester. Click to enlarge.
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AUGUST 21, 2009
Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. Besides a danger to breathe, ozone lowers crop yields.
Green Car Congress
SEPTEMBER 9, 2011
US EPA Region 9 8-hour ozone trends, 1979-2000. These State Implementation Plans (SIPs) are the roadmaps to meeting the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) of 0.08 In 1997, EPA first established the 8-hour ozone standard, which replaced the older 1-hour ozone standard (0.12 Source: EPA.
Green Car Congress
OCTOBER 18, 2019
20 % of stations registered concentrations above the EU ozone (O 3 ) target value for the protection of human health. The percentage of the EU-28 urban population exposed to O 3 levels exceeding the WHO AQG value was 96% in 2017—showing scarcely any fluctuation since 2000.
Green Car Congress
DECEMBER 23, 2016
Earlier this year, the US Environmental Protection Agency (EPA) received several petitions from state and local government agencies from across the country and other organizations to increase the stringency of the on-highway heavy-duty engine NO x emission standards from 0.2 grams per brake horsepower-hour (g/bhp-hr) to 0.02
Green Car Congress
APRIL 15, 2020
concentrations in the US fell by 39% between 2000 and 2018 while average PM 10 concentrations fell by 31% during the same period. EPA is proposing that the current secondary standards are adequate to protect against PM-related visibility impairment, climate effects, and effects on materials. Average PM 2.5
Green Car Congress
APRIL 2, 2012
positive or negative—and magnitude of net climate forcing from BC emissions), currently available scientific and technical information provides a strong foundation for making mitigation decisions to achieve lasting benefits for public health, the environment, and climate. emissions in 2005. Earlier post.). Source: EPA.
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