article thumbnail

Researchers say world faces air pollution pandemic

Green Car Congress

Air pollution is responsible for shortening people’s lives worldwide on a scale far greater than wars and other forms of violence, parasitic and vector-born diseases such as malaria, HIV/AIDS and smoking, according to an open-access study published in Cardiovascular Research. Household air pollution is from the indoor use of solid biofuels.

Pollution 438
article thumbnail

Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

Green Car Congress

Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. For comparison, columns over the same time periods are shown for 2019.

Ozone 291
article thumbnail

Microplastics in Arctic snow suggest widespread air pollution

Green Car Congress

The high concentrations found in snow samples from disparate regions suggest microplastics—which may contain varnish, rubber, or chemicals used in synthetic fabrics—cause significant air pollution. For comparison, the researchers investigated samples from the remote Swiss Alps and the City of Bremen in northwest Germany.

Pollution 223
article thumbnail

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

Green Car Congress

However, aerosols have a much shorter lifespan in the atmosphere than the gases responsible for global warming, resulting in an atmospheric distribution that varies by region, especially in comparison to carbon dioxide. So far, policy discussions have not come to grips with this fact. —Ken Caldeira. This work is part of a larger $1.5-million

Climate 170
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. Emission factors (EFs) from scooters and other vehicles.

Pollution 362
article thumbnail

Air pollutant emission 2010 limits exceeded in twelve EU Member States; road transport NOx a main factor

Green Car Congress

For the first time, preliminary data recently reported to the EEA by Member States allow a comparison with the legally binding emission limits for 2010 set in the EU NEC Directive. These pollutants can cause respiratory problems, contribute to the acidification of soil and surface water, and damage vegetation. Jacqueline McGlade.

Pollution 309
article thumbnail

ICCT analysis finds real-world vehicle fuel consumption gap in Europe at all-time high of 42%

Green Car Congress

However, says Dr. Peter Mock, Managing Director of ICCT Europe, since 2001 Europe has seen the largest increase in its gap. —Uwe Tietge, a researcher at ICCT Europe and lead author. Divergence between real-world and manufacturers’ type-approval CO 2 emission values for China, Europe, Japan, and the United States.

Europe 170