Green Car Congress
MARCH 8, 2019
This research, published in the journal Separation and Purification Technology , shows that ozone can be used to remove not only SO x but also NO x from fossil fuel combustion exhaust streams. In this study, to improve absorption performance of SO 2 and NO 2 , we added ozone in exhaust gas. Osaka et al. 2018.12.077.
Green Car Congress
NOVEMBER 18, 2021
The HD Omnibus rules strengthen nitrogen oxides and fine particulate matter (PM 2.5 ) emission standards for new truck engines (both diesel and non-diesel engines), in addition to other requirements for these engines. —Rachel Sakata, Department of Environmental Quality’s senior air quality planner.
Green Car Congress
MAY 15, 2017
A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. Heavy-duty vehicles, such as commercial trucks and buses, were by far the largest contributor worldwide, accounting for 76% of the total excess gas emissions.
Green Car Congress
JUNE 8, 2023
The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. Cars’ average carbon dioxide emissions have dropped by 25% since the early 2000s, according to the US Environmental Protection Agency (EPA), but this gas only accounts for part of the total.
Green Car Congress
FEBRUARY 22, 2011
Black carbon and tropospheric ozone are harmful air pollutants that also contribute to climate change. Reducing black carbon and tropospheric ozone now will slow the rate of climate change within the first half of this century, the study said.
Green Car Congress
SEPTEMBER 27, 2015
The study found that 60% of the winter primary hydrocarbon hydroxyl radical reactivity in London is from those diesel-related hydrocarbons; the authors predicted that the longer-chain HCs contribute up to 50 % of the ozone production potential in London. —Dunmore et al. Dunmore et al.
Green Car Congress
AUGUST 21, 2009
Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. Besides a danger to breathe, ozone lowers crop yields.
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