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International study finds air pollution leads to millions of hospital visits for asthma attacks worldwide

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The researchers aimed to estimate the number of asthma emergency room visits and new onset asthma cases globally attributable to PM 2.5 , ozone, and NO 2 concentrations. This is the first global study of the potential impacts of air pollution on serious asthma attacks that cause people to visit emergency rooms in hospitals around the world.

Pollution 207
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Study finds power law scaling relationship between urban population and NO2 pollution

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These regions contain two-thirds of total global anthropogenic NO x emissions. The researchers used tropospheric NO 2 columns retrieved from the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite, which measures NO 2 throughout the atmosphere in the afternoon around the world. Resources. —Lok Lamsal, lead author.

Pollution 261
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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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We use the GEOS-Chem global chemical transport model to evaluate the quantitative utility of FNR observed from the Ozone Monitoring Instrument over three northern midlatitude source regions. —Jin et al. Murray, L. Lamsal, L. Duncan, B., … Tonnesen, G.

Ozone 150
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NASA-led study identifies unprecedented depletion of stratospheric ozone layer above Arctic

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These included daily global observations of trace gases and clouds from NASA’s Aura and CALIPSO spacecraft; ozone measured by instrumented balloons; meteorological data and atmospheric models. Manney, Michelle L. Santee, Markus Rex, Nathaniel J. Livesey, Michael C. Pitts, Pepijn Veefkind, Eric R.

Ozone 186
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DISCOVER-AQ project to begin flights to enhance measurement of ground-level air-quality from space

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Overall, the World Health Organization estimates that air pollution causes some 2 million premature deaths globally per year. Since many countries, including the United States, have large gaps in ground-based networks of air pollution monitors, experts look toward satellites to provide a global perspective. DISCOVER-AQ site.

Ozone 186
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Perspective: A View Into the New GM

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Chevrolet is a global value leader. Cadillac conveys the philosophy of “ Art and Science ” globally, with “Art” representing an appeal to aesthetics while “Science” indicates advanced technology. By eliminating the weaker brands and weaker models, GM can focus more of their resources on their stronger products. Earlier post.).

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