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

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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.

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Researchers Find That Stratospheric Ozone Depletion Reduces Southern Ocean Carbon Uptake

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Researchers in France have found that ozone depletion above Antarctica has significantly reduced the Southern Ocean’s ability to absorb atmospheric CO 2 and has also accelerated acidification of southern polar waters, despite lesser CO 2 uptake. The results revealed that, between 1987 and 2004, around 2.3 Lenton, A., Tagliabue, and J.

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Study Concludes Warming Climate Will Increase Ozone Levels in Major California Air Basins; Climate Change and Regional Air Quality Are Intertwined Problems

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Illustration of projected ozone changes in the South Coast region due to climate change in 2050. Areas in orange and red could see ozone concentrations elevated by 9 to 18 parts per billion. Click to enlarge. Our study reveals that climate change and regional air pollution are intertwined problems. Kleeman of UC Davis, lead author.

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Large scale epidemiological study associates PM2.5, NO2 pollution with kidney, bladder and colorectal cancer death

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The open-access study, published in Environmental Health Perspectives , included more than 600,000 adults in the US who participated in the Cancer Prevention Study II and who were followed for 22 years (from 1982 to 2004). More than 43,000 non-lung cancer deaths were registered among the participants.

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NOAA greenhouse gas index continues climbing; 1.29 in 2010

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Started in 2004, the AGGI reached 1.29 It also includes several chemicals known to deplete Earth’s protective ozone layer, which are also active as greenhouse gases. NOAA researchers developed the AGGI in 2004 and have so far back calculated it to 1978. in 2010—i.e.,

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CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

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2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004 engines.

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Decrease in air pollution associated with decrease in respiratory symptoms among children

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The study involved children (age range, 5-18 years) from 3 groups, and was conducted during the 1993-2001, 1996-2004, and 2003-2012 years in 8 Southern California communities. Kiros Berhane, Ph.D., A model was used to estimate the association of changes in pollution levels with bronchitic symptoms.

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