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Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

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Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). This despite evidence that suggests air pollution impacts from the transportation sector exceed those from greenhouse gases. …

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UCL-led study finds climate impact caused by growing space industry needs urgent mitigation

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The rapidly growing space industry may have a greater climate effect than the aviation industry and undo repair to the protective ozone layer if left unregulated, according to a new study led by UCL and published in the journal Earth’s Future as an open-access paper. The space industry is one of the world’s fastest growing sectors.

Climate 428
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USC study finds particulate matter in air pollution affects thyroid development in fetuses

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In a cohort study of a subset of 2050 newborns from the Children’s Health Study in southern California, researchers at the University of Southern California (USC) found that an increase of 2 standard deviations in prenatal exposure to particulate matter in air pollution was associated with higher newborn total thyroxine (TT4) measures.

Pollution 301
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6PPD-quinone derived from tire debris is toxic to two trout species, not just coho salmon

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Every time it rains, fish living downstream of storm drains are exposed to pollutants, including the tire-derived compound 6PPD-quinone, in the runoff. 6PPD is an antioxidant and antiozonant that helps prevent the degradation and cracking of rubber compounds caused by exposure to oxygen, ozone and temperature fluctuation.

Ozone 370
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KIT study finds extraordinarily cold Arctic stratospheric winter enhanced ozone degradation above the Arctic

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Extraordinarily cold temperatures in the stratosphere during the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far, according to a study by climate researchers at KIT (Karlsruhe Institute of Technology). These chemical conversion products attack the ozone layer and destroy it partly.

Ozone 210
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California ARB soliciting research suggestions for FY 2012-2013 plan; sustainable communities, behavior, pollutant exposure, air pollution science, GHG targets

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The FY 2011-2012 plan focused primarily on five areas of interest: sustainable communities; behavior and technology adoption; health and air pollution exposures; air pollution science; and greenhouse gas targets. These regulations have led to considerable improvements in air quality throughout California.

Pollution 231
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Researchers Discover New Chemistry for Ozone Formation; Not Yet Monitored or Incorporated into Atmospheric Models

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A) shows the base case peak concentrations for O 3 (ozone), ClNO and HCl in parts-per-billion by volume (ppbv). (B) Under extreme circumstances, this previously unknown chemistry could account for up to 40 parts per billion (ppb) of ozone; the current US Environmental Protection Agency (EPA) 8-hour average standard is 75 ppb.

Ozone 150