Design Global Ozone Resource 
Green Car Congress
FEBRUARY 11, 2020
Daily exposure to ground level ozone in cities worldwide is associated with an increased risk of death, according to the largest study of its kind, published in an open-access paper in The BMJ. Ground level ozone is a highly reactive gas commonly found in urban and suburban environments, formed when pollutants react in sunlight.
Green Car Congress
FEBRUARY 27, 2018
Global levels of the hydrocarbons ethane and propane in the atmosphere have been underestimated by more than 50%, according to a new study by a team of scientists from Europe and the US. Levels of ethane and propane declined in many places the 1980s and 1990s, but global growth in demand for natural gas means these trends may be reversing.
Green Car Congress
DECEMBER 14, 2020
The California Air Resources Board recently approved first-in-the-nation rules to curb the impact of hydrofluorocarbon (HFC) refrigerants. HFCs are synthetic gases that are used in a variety of applications, but mainly to replace ozone-depleting substances in aerosols, foams, refrigeration and air-conditioning.
Green Car Congress
APRIL 15, 2019
In a paper published in the journal Atmospheric Environment , they report on the findings from a suite of scenarios designed to quantify the effect of both the magnitude of EV market penetration and the source of electricity generation used to power them. —Schnell et al. Seasons and times of day. Schnell et al. —Jordan Schnell.
Green Car Congress
JANUARY 15, 2021
At cruising altitude, airplanes emit a steady stream of NO x into the atmosphere, where the chemicals can linger to produce ozone and fine particulates. Previous research has shown that the generation of these chemicals due to global aviation results in 16,000 premature deaths each year. increase in block fuel burn. Speth, Sebastian D.
Green Car Congress
JANUARY 23, 2020
Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric levels growing at record values. Resources. This is not the first time that HFC-23 reduction measures attracted controversy. Stanley, D.
Green Car Congress
JANUARY 14, 2021
This category of emissions is the largest source of volatile organic compounds (VOCs) produced by automobiles, which are a main source of haze, ozone, and particulate matter. Helps meet global emission regulations. If fuel vapor is released into the atmosphere, it contributes to a category of pollutants known as evaporative emissions.
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