Tagged with Air Quality

Towards Cleaner Air: Scientific Assessment Report 2016

UN Economic Commission for Europe http://bit.ly/1WvgC1L (Summary for Policymakers) http://www.unece.org/index.php?id=42861 (Full Report) [Science and Technology Research News] The main findings of the report show that air quality in North America and Europe has improved significantly over the past 30 years thanks mainly to policy-driven reductions in air pollution. The effects of such reductions are that … Continue reading

Marked Long-term Decline in Ambient CO Mixing Ratio in SE England, 1997–2014: Evidence of Policy Success in Improving Air Quality

Nature Scientific Reports (2016; doi:10.1038/srep25661) / by D. Lowrt, et al. http://www.nature.com/articles/srep25661 [Green Car Congress] New research published today (23 May) in Scientific Reports has found a marked and progressive 80% decline in atmospheric CO (carbon monoxide) in SE England since 1997, following adoption of strict controls on gasoline vehicle emissions begin[ning] in the 1990s. … Continue reading

Farms is Number One Source of Fine Particle Air Pollution: NASA Study

Significant Atmospheric Aerosol Pollution Caused by World Food Cultivation Geophysical Research Letters (2016, v43; doi: 10.1002/2016GL068354) / by Susan E. Bauer, Kostas Tsigaridis, and Ron Miller http://onlinelibrary.wiley.com/doi/10.1002/2016GL068354/full [Yale Environment 360]  Farms are the number one source of fine-particulate air pollution in the U.S., Europe, Russia, and China, according to new research published in the journal Geophysical … Continue reading

High-Mileage Light-Duty Fleet Vehicle Emissions: Their Potentially Overlooked Importance

Environmental Science & Technology (May 3, 2016; DOI: 10.1021/acs.est.6b00717) / by Gary A. Bishop, et al. http://pubs.acs.org/doi/abs/10.1021/acs.est.6b00717 [Green Car Congress]  A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. In … Continue reading

Fugitive Emissions from the Bakken Shale Illustrate Role of Shale Production in Global Ethane Shift

Geophysical Research Letters (April 26, 2016; doi: 10.1002/2016GL068703) / by E. A. Kort, et al. http://onlinelibrary.wiley.com/doi/10.1002/2016GL068703/full [From Press Release] A single U.S. shale oil field is responsible for much of the past decade’s increase in global atmospheric levels of ethane, a gas that can damage air quality and impact climate, according to new study led … Continue reading

Even Small Amounts of Pollution Can Lead to Long Term Health Effects for Developing Fetuses: Johns Hopkins Study

Intrauterine Inflammation and Maternal Exposure to Ambient PM2.5 during Preconception and Specific Periods of Pregnancy: The Boston Birth Cohort Environmental Health Perspectives (2016; DOI:10.1289/EHP243 / by Rebecca Massa Nachman, et al. http://ehp.niehs.nih.gov/ehp243/ [From Press Release]  Even small amounts of air pollution appear to raise the risk of a condition in pregnant women linked to premature … Continue reading

Particulate Matter Exposure and Preterm Birth: Estimates of U.S. Attributable Burden and Economic Costs

Environmental Health Perspectives (March 29, 2016; DOI:10.1289/ehp.1510810) / by Leonardo Trasande, et al. http://ehp.niehs.nih.gov/15-10810/ [Yale Environment 360] Air pollution may be causing thousands of premature births in the U.S. every year, particularly in urban areas like the Ohio River Valley, Southern California, New York City, and Chicago, according to a new study in the journal … Continue reading

Observed Decrease in Atmospheric Mercury Explained by Global Decline in Anthropogenic Emissions

Proceedings of the National Academy of Sciences (January 4, 2016; doi: 10.1073/pnas.1516312113) / by Yanxu Zhang, et al. http://www.pnas.org/content/early/2016/01/02/1516312113 Anthropogenic mercury poses risks to humans and ecosystems when converted to methylmercury. A longstanding conundrum has been the apparent disconnect between increasing global emissions trends and measured declines in atmospheric mercury in North America and Europe. … Continue reading