article thumbnail

Study finds coal trains add significant amount of PM2.5 pollution in urban areas

Green Car Congress

Coal trains and terminal operations add a significant amount of fine particulate matter (PM 2.5 ) pollution to urban areas—more so than other freight or passenger trains— according to a study conducted in Richmond, California, by the University of California, Davis. µg/m 3 (95% CI = 6.2, p 3 more than freight trains.

Coal 300
article thumbnail

New WHO Global Air Quality Guidelines Aim to Save Millions of Lives from Air Pollution

EV Obssesion

Article courtesy of WHO: New WHO Global Air Quality Guidelines aim to save millions of lives from air pollution New WHO Global Air Quality Guidelines (AQGs) provide clear evidence of the damage air pollution inflicts on human health, at even lower concentrations than previously understood.

article thumbnail

NYU review study suggests potential for gauging health risks of air pollution on individual level

Green Car Congress

In the past, pollution measurement has been relatively crude in terms of compositional, spatial, and temporal resolution. There have been significant improvements in the ability to conduct granular measurement of air pollutants, and this has enabled more awareness and more focused local policy actions, as addressed below. Globally, 4.2

Pollution 191
article thumbnail

WHO: 9 out of 10 people worldwide breathe polluted air; 7M deaths per year

Green Car Congress

New data from the World Health Organization (WHO) shows that 9 out of 10 people breathe air containing high levels of pollutants. Updated estimations reveal a death toll of 7 million people every year caused by ambient (outdoor) and household air pollution. Ambient air pollution alone caused some 4.2 g/m 3 (for PM 10 ) and 10 ?g/m

Pollution 150
article thumbnail

Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

Green Car Congress

A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al. Platt et al.

Pollution 362
article thumbnail

WHO: Air pollution levels rising in many of the world’s poorest cities

Green Car Congress

More than 80% of people living in urban areas that monitor air pollution are exposed to air quality levels that exceed World Health Organization (WHO) limits, according to the organization. Global urban air pollution trends. While all regions of the world are affected, populations in low-income cities are the most impacted.

Pollution 150
article thumbnail

Carnegie study finds climate impact of particulates varies greatly depending on where the pollution originated

Green Car Congress

Global and regional-mean temperature responses to identical aerosol emissions in different regions. Diagonal lines (b) indicate the ratio of regional- to global-mean cooling. For example, their models show that aerosol emissions from Western Europe have 14 times the global cooling effect that aerosol emissions from India do.

Climate 170