Remove Global Remove North America Remove Ozone Remove Pollution
article thumbnail

TOAR shows present-day global ozone distribution and trends relevant to health; public database

Green Car Congress

Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb.

Ozone 255
article thumbnail

Study Links Springtime Ozone Increases Above Western North America to Emissions in Asia

Green Car Congress

Springtime ozone distributions for 1984, 1995–2008 in the mid-troposphere (3.0–8.0 Springtime ozone levels above western North America are rising primarily due to air flowing eastward from the Pacific Ocean, a trend that is largest when the air originates in Asia. km), and air mass source regions. Click to enlarge.

article thumbnail

Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

Green Car Congress

Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

Ozone 150
article thumbnail

Researchers report on potential long-range atmospheric emissions impacts of increased ethanol fuel use in North America

Green Car Congress

Seasonal ethanol emissions from North America. Numbers inset give the total North American ethanol source. Terrestrial plants are thought to be the dominant global source of atmospheric ethanol.) Acetaldehyde is classified as a hazardous air pollutants (HAP) regulated under Title III of the Clean Air Act Amendments.

article thumbnail

Study finds that under business-as-usual scenario, average global air quality to worsen; China, North India and Middle East are the hot spots

Green Car Congress

Population-Weighted Multi Pollutant Index (PW-MPI) values for different regions. Even though air quality will deteriorate further in North America and Europe, in 2050 it will be significantly better than that experienced by the global average citizen. Source: Pozzer et al. —Pozzer et al.

India 240
article thumbnail

Study: 87% of world’s population in 2013 lived in areas exceeding WHO PM2.5 guidelines

Green Car Congress

Between 1990 and 2013, global population-weighted PM 2.5 Additionally, the study found that the population-weighted mean concentrations of ozone increased globally by 8.9% from 1990–2013 with increases in most countries—except for modest decreases in North America, parts of Europe, and several countries in Southeast Asia.

2013 150
article thumbnail

ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

Green Car Congress

While that report projected vessel activity, it did not explore the environmental impacts of increased shipping in terms of air emissions or the potential climate impacts from increases in short-lived climate pollutants such as black carbon. Annex VI defines two sets of emission and fuel quality requirements: global requirements; and.

Pollution 150