article thumbnail

California ARB: GHG emissions fell below 1990 levels for first time in 2016; down 13% from 2004 peak; transportation emissions up 2%

Green Car Congress

The California Air Resources Board (CARB) announced that greenhouse gas emissions in California in 2016 fell below 1990 levels for the first time since emissions peaked in 2004—a reduction roughly equivalent to taking 12 million cars off the road or saving 6 billion gallons of gasoline a year.

2004 225
article thumbnail

Decrease in air pollution associated with decrease in respiratory symptoms among children

Green Car Congress

Decreases in ambient air pollution levels over the past 20 years in Southern California were associated with significant reductions in bronchitic symptoms in children with and without asthma, according to a study by researchers at the University of Southern California published in JAMA. Kiros Berhane, Ph.D., 2016.3444.

Pollution 150
article thumbnail

10-year study shows how air pollution fosters heart disease; accelerated plaque build-up in arteries

Green Car Congress

Long-term exposure to particulate air pollution has been linked to an increased risk of heart disease, but the biological process has not been understood. Participant-specific pollutant concentrations averaged over the years 2000–10 ranged from 9.2–22.6 The study is published in The Lancet. and NO x between 1999 and 2012. μg PM 2.5 /m

Pollution 199
article thumbnail

California ARB awards $7M for ultra-low NOx heavy-duty diesel truck demo project with Achates opposed-piston engines

Green Car Congress

The California Air Resource Board (CARB) is awarding $7 million to CALSTART to develop a Class 8 truck that will achieve a 90% reduction in NO x along with a 15-20% fuel efficiency improvement. California’s ultra-low NO x emissions standard is 0.02 grams per brake horsepower-hour (g/bhp/hr).

article thumbnail

California ARB holding two workshops on developing measure to reduce emissions from TRUs

Green Car Congress

The California Air Resources Board (ARB) is developing a measure to reduce emissions from Transport Refrigeration Units (TRUs) by transitioning to zero-emission technologies. TRUs and TRU gensets emit diesel PM, NO x , greenhouse gases and other pollutants. About 18,000 of these are operating in California on any given day.

article thumbnail

Study Concludes Warming Climate Will Increase Ozone Levels in Major California Air Basins; Climate Change and Regional Air Quality Are Intertwined Problems

Green Car Congress

In a new report released by the California Air Resources Board, scientists from the University of California at Davis and Berkeley estimate that rising temperatures from climate change will increase ozone levels in California’s major air basins. Climate Change Impact on Air Quality in California. Click to enlarge.

article thumbnail

CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

Green Car Congress

2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. For a number of the most important pollutants, levels were substantially lower than required by regulations. These reductions came while emissions of fine particles were also 92% lower than the 2010 standard 99% lower than 2004 emissions.

Diesel 296