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Evidence from glacier ice: Until it was banned, leaded gasoline dominated the anthropogenic lead emissions in South America

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Leaded gasoline was a larger emission source of the toxic heavy metal lead than mining in South America, even though the extraction of metals from the region’s mines historically released huge quantities of lead into the environment, according to a study by researchers from the Paul Scherrer Institute PSI and the University of Bern.

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

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Source: University of Leicester. In some parts of Asia, Africa and South America, the researchers identified data gaps which prevented them from characterizing ozone pollution exposure patterns. However, overall, Southern Hemisphere sites tend to have lower ozone pollution levels, and fewer days above 70 ppb.

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Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

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The urban areas with the highest number of transportation-attributable air pollution in 2015 were Guangzhou, Tokyo, Shanghai, Mexico City, Cairo, New Delhi, Moscow, Beijing, London, and Los Angeles. Ambient air pollution is the leading environmental health risk factor worldwide, contributing to 3.4

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Study finds megacity traffic soot can reach high altitudes and be transported over long distances, contributing to global warming

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The conurbation of the metropolitan area of La Paz/El Alto is one of the fastest growing urban settlements in South America with the particularity of being located in a very complex terrain at a high altitude. Therefore, air pollution in this region has a particularly strong impact on the atmosphere and the global climate.

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Study finds some improved cookstoves may emit more black carbon pollution than traditional mud cookstoves

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Singh, Tanveer Ahmed, Nithya Ramanathan, and Veerabhadran Ramanathan (2012) Real-Time Assessment of Black Carbon Pollution in Indian Households Due to Traditional and Improved Biomass Cookstoves. Praveen Puppala, Ramasubramanyaiyer Suresh, Lokendra Singh, Vivek K. Environmental Science & Technology 46 (5), 2993-3000 doi: 10.1021/es203388g.

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Study: IMO low-sulfur fuel standards will decrease childhood asthma cases, premature deaths; climate tradeoffs

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The study was led by University of Delaware’s James Corbett, and included an international team of researchers from the Finnish Meteorological Institute (FMI), Rochester Institute of Technology (RIT) in New York and Energy and Environmental Research Associates. pollution impacts in 2020 with and without the use of low-sulphur fuels.

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IRENA report finds renewable power costs at parity or below fossil fuels in many parts of world

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However, the report notes, renewable energy price improvements are not universal, and costs range widely according to resources and the availability of financing. Their cost range in China, North America and South America has fallen within the range of fossil fuel-fired electricity. Source: IRENA. Click to enlarge.

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