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

Ozone 236

Ozone EPA Pollution 2002 236

Green Car Congress

OCTOBER 23, 2020

The data shows a slight increase in overall emissions from the previous year, and a slight decline in emissions from transportation, which is the state’s main source of both GHGs and air pollutants. Per capita GHG emissions in California have dropped from a 2001 peak of 14.0 Source: California Air Resources Board (ARB).

2020 221

2020 California Emissions 2018 221

Green Car Congress

JANUARY 7, 2020

The eventual CTI rulemaking will establish new, more stringent emission standards for NO x and other pollutants for highway heavy-duty engines. This action follows on the petitions from more than 20 organizations, including state and local air agencies, to revise and promulgate more stringent NO x standards.

EPA 150

EPA Ozone Clean Cleaning 150