Green Car Congress

APRIL 22, 2011

A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours.

Ozone 218

Ozone PHEV Texas San Antonio 218

Green Car Congress

FEBRUARY 15, 2020

The study focuses on the period between 2005 and 2018 and tracks combustion emissions of various polluting compounds from various sectors, looking at every state in the contiguous United States, from season to season and year to year. They first obtained emissions data from each of seven sectors for the years 2005, 2011, and 2018.

MIT 307

MIT Pollution Emissions 2005 307

Green Car Congress

OCTOBER 20, 2018

Improvements in air quality and public health in the US coincided with increased federal air quality regulations, and have taken place despite increases in population, energy and electricity use, and vehicle miles traveled between 1990 and 2010. and ozone from a 21-year computer simulation of air pollution across the US. Hogrefe, C.,

Pollution 265

Pollution 2010 Ozone North Carolina 265