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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.

Ozone 150
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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. These narrow-focused models utilize high-resolution information about the geography, meteorology and emissions of these areas.

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

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However, in a new large-scale prospective study led by the Barcelona Institute of Global Health (ISGlobal), an institution supported by the “la Caixa” Foundation, and the American Cancer Society, researchers observed an association between some air pollutants and mortality from kidney, bladder and colorectal cancer.

Pollution 170
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Study Highlights the Importance of Considering Climate Effects of Non-CO2 Emissions from Transport in Mitigation Strategies and Policies

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Radiative forcing from the global and US ORT and PG sectors. The on-road transportation (ORT) and power generation (PG) sectors are major contributors to CO 2 emissions and a host of short-lived radiatively-active air pollutants, including tropospheric ozone and fine aerosol particles, that exert complex influences on global climate.

Climate 150
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DISCOVER-AQ project to begin flights to enhance measurement of ground-level air-quality from space

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Both aircraft will measure ozone and a mixture of soot and PM. Other instruments on the P-3B will measure pollutants that lead to the formation of ozone such as nitrogen dioxide and formaldehyde. Overall, the World Health Organization estimates that air pollution causes some 2 million premature deaths globally per year.

Ozone 186
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Study Finds Asian Monsoon Carries Pollution Into the Stratosphere

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The Asian monsoon circulation provides an effective pathway for pollution from Asia, India, and Indonesia to enter the global stratosphere, according to a new international study led by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, Colo. Tags: China Emissions Other Asia. Science doi: 10.1126/science.1182274.

Pollution 246
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WMO: Atmospheric Concentrations of Main Greenhouse Gases in 2008 Set New Highs

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The latest analysis of observations from WMO’s Global Atmosphere Watch (GAW) Programme for 2008 shows that the globally averaged mixing ratios of carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N 2 O) reached new highs with CO 2 at 385.2 The globally averaged mixing ratio of carbon dioxide (CO 2 ) in 2008 was 385.2

2008 218