Green Car Congress

SEPTEMBER 6, 2020

B) Temperature dependence of total gas-phase emissions from asphalt, ranging from in-use (40 °C to 60 °C) and storage (80 °C to 140 °C) to paving and overheating (120 °C to 200c°C) temperature conditions (filled circles). 300% for road asphalt) with greater SOA yields and sustained SOA production. —Khare et al.

Pollution 337

Pollution Los Angeles Emissions Solar 337

Green Car Congress

OCTOBER 28, 2010

The two combine in the atmosphere to make either nitric acid or peroxynitrous acid; the so-called branching ratio of these two chemicals is important in models of ozone production. This means less of the hydroxyl radical and nitrogen dioxide go away, leading to proportionately more ozone, mostly in polluted areas, Okumura said.

Ozone 210

Ozone Los Angeles Pollution California 210

Green Car Congress

AUGUST 9, 2012

In California’s Los Angeles Basin, levels of volatile organic compounds (VOCs) pollutants have decreased by about 98% since the 1960s, even as area residents now burn approximately three times as much gasoline and diesel fuel. CO2 ratio for this flight track segment decreased from 24.5 ppbv/ppmv to 10.7 Source: Warneke et al.

Los Angeles 285

Los Angeles Gasoline Ozone 2002 285

Green Car Congress

AUGUST 16, 2016

The US Environmental Protection Agency (EPA) and the US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) jointly released the finalized Phase 2 greenhouse gas and fuel efficiency standards for medium- and heavy-duty trucks.

EPA 150

EPA Fuel Standards Emissions 150

Green Car Congress

SEPTEMBER 1, 2012

The results highlight the early challenges in a nascent sector of climate science and could have implications for regulatory efforts to reduce the production of black carbon, or soot, by curbing the burning of fossil fuels. Cappa, a professor of engineering at the University of California, Davis, and Timothy B.

Climate 261

Climate Climate Change Carbon Boston 261

Green Car Congress

SEPTEMBER 26, 2009

Implementation dates would be staggered to coincide with the development and commercial production of these advanced technologies. BNSF has been operating four liquefied natural gas yard locomotives in downtown Los Angeles since the mid-1990s. NO x helps create ground-level ozone, or smog.

Diesel 170

Diesel California Emissions 2007 170

Green Car Congress

APRIL 1, 2009

The global market for rocket launches may require more stringent regulation in order to prevent significant damage to Earth’s stratospheric ozone layer in the decades to come, according to a new study by researchers in California and Colorado. Darin Toohey.

Ozone 150

Ozone Los Angeles Colorado Corporation 150