Emissions EPA Ozone 
Green Car Congress
MARCH 8, 2022
The US Environmental Protection Agency (EPA) is proposing new, stronger standards to promote clean air and reduce pollution from heavy-duty vehicles and engines starting in model year (MY) 2027. This proposed rulemaking builds on and improves the existing emission control program for on-highway heavy-duty engines and vehicles.
Green Car Congress
NOVEMBER 26, 2014
Counties where measured ozone is above proposed range of standards, based on 2011-2013 monitoring data. Source: EPA. EPA will seek public comment on the proposal for 90 days following publication in the Federal Register, and the agency plans to hold three public hearings. EPA will issue final ozone standards by 1 October 2015.
Green Car Congress
MAY 31, 2019
Long-term exposure to ambient ozone appears to accelerate arterial conditions that progress into cardiovascular disease and stroke, according to a new University at Buffalo study. The study found that chronic exposure to ozone was associated with a progression of thickening of the main artery that supplies blood to the head and neck.
Green Car Congress
SEPTEMBER 16, 2009
The US Environmental Protection Agency (EPA) will reconsider the 2008 primary and secondary ozone standards. In 2008, EPA established a new primary 8-hour standard for ozone of 0.075 parts per million (ppm), and a new secondary standard set at a form and level identical to the new primary standard. Earlier post.)
Green Car Congress
SEPTEMBER 2, 2011
In a statement released this morning, President Barack Obama said he has requested that US Environmental Protection Agency (EPA) Administrator Lisa Jackson withdraw the agency’s draft Ozone National Ambient Air Quality Standards (NAAQS) rulemaking. Earlier post.) National Ambient Air Quality Standards (NAAQS).
Green Car Congress
JANUARY 7, 2010
Counties projected to violate proposed Primary 8-hour Ground-Level Ozone Standards in 2020. Source: EPA. The United States Environmental Protection Agency has proposed the strictest standards to date for ground-level ozone. EPA is proposing an accelerated schedule for designating areas for the primary ozone standard.
Green Car Congress
MARCH 11, 2013
Researchers from Rice University and the US Environmental Protection Agency (EPA) report in a paper in the journal Atmospheric Chemistry that particularly in Northeastern cities, ozone levels dropped even beyond what was anticipated by cutting emissions of NO x from 2002 to 2006. This is good news. Earlier post.).
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