Remove Carbon Remove Emissions Remove Ozone Remove Pollution
article thumbnail

EPA proposes new heavy-duty truck emissions rules

Green Car Congress

The US Environmental Protection Agency (EPA) is proposing new, stronger standards to promote clean air and reduce pollution from heavy-duty vehicles and engines starting in model year (MY) 2027. This proposed rulemaking builds on and improves the existing emission control program for on-highway heavy-duty engines and vehicles.

EPA 434
article thumbnail

WHO issues new, lower Global Air Quality Guidelines for classical pollutants

Green Car Congress

New WHO has issued new Global Air Quality Guidelines (AQGs) that reduce levels of key air pollutants, some of which also contribute to climate change. Since WHO’s last 2005 global update, there has been a marked increase of evidence that shows how air pollution affects different aspects of health. Source: WHO. nitrogen dioxide (NO?)

Pollution 435
article thumbnail

Study finds COVID-19 lockdown in China brought only slight reduction in PM2.5 and ozone

Green Car Congress

Large improvements of air quality in China during the lockdown have been widely reported, but new research shows that two pollutants harmful to human health—fine particulate matter (PM 2.5 ) and ozone—were only slightly reduced. and ozone were only slightly reduced or barely affected.

Ozone 243
article thumbnail

Study suggests air pollution may be linked to heightened mouth cancer risk; PM2.5 and ozone

Green Car Congress

High levels of air pollutants, especially fine particulate matter (PM 2.5 ) and to a lesser extent, ozone, may be linked to a heightened risk of developing mouth cancer, suggests a study by a team of Taiwanese researchers. Diagnoses of mouth cancer were then linked to local area readings for air pollutants taken in 2009.

Ozone 255
article thumbnail

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. —Cliff et al.

Emissions 397
article thumbnail

HEI launches two new non-tailpipe particulate emission studies

Green Car Congress

The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.

Emissions 353
article thumbnail

Satellite data show resurgence in NO2 emissions over China

Green Car Congress

Data from the ESA’s Tropomi (TROPOspheric Monitoring) instrument on board the Copernicus Sentinel-5P satellite shows the variation of nitrogen dioxide (NO 2 ) emissions over China from December to March. The drop in emissions also coincided with Lunar New Year celebrations, which usually sees a similar drop in emissions each year.

China 473