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.

Ozone 199

Ozone EPA Standards 2008 199

Green Car Congress

SEPTEMBER 19, 2018

In a cohort study of a subset of 2050 newborns from the Children’s Health Study in southern California, researchers at the University of Southern California (USC) found that an increase of 2 standard deviations in prenatal exposure to particulate matter in air pollution was associated with higher newborn total thyroxine (TT4) measures.

Pollution 301

Pollution Los Angeles California Ozone 301

Green Car Congress

DECEMBER 4, 2013

2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004 engines.

Diesel 296

Diesel Emissions 2004 San Antonio 296

Green Car Congress

MAY 28, 2010

These connections arise because in many cases the agents of concern are the same, and in many cases the sources of the agents are the same or intimately connected.For example, surface ozone is both an air pollutant and a greenhouse gas. The complex roles that ozone and aerosols play in the atmosphere provide examples of such trade-offs.

Climate Change 210

Climate Change Climate Pollution California 210

Green Car Congress

MAY 6, 2010

Testing is due to be complete next year, prompting the auto, oil and outdoor power equipment industries to urge the Environmental Protection Agency (EPA) to delay action on its proposal to allow higher levels of ethanol in gasoline until that testing is done. Earlier post.) Base engine durability (CRC CM-136-09). A-67 / A-73).

Vehicles 186

Vehicles Emissions 2010 Australia 186

Green Car Congress

JUNE 3, 2010

The transportation calculation noes not include the implementation of the new national light-duty vehicle greenhouse gas standards ( earlier post ) or other coming regulatory measures. The submission of the document, also called the US Climate Action Report 2010, is a requirement under the UN Framework Convention on Climate Change.

Climate 199

Climate 2020 Emissions Climate Change 199

Cars That Think

AUGUST 16, 2021

Meanwhile, environmentalists were voicing concern—about how noisy such aircraft are taking off, about the possibility that their high-altitude emissions would erode the ozone layer, and about how disruptive the sonic booms would be. Despite strong support from the FAA, the airline industry, and aerospace companies, the U.S.

Oklahoma City 109

Oklahoma City Ozone Oklahoma Fuel 109