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UMD-led study finds China’s SO2 emissions down 75% since 2007, India’s up 50%; India may now be the top SO2 emitter

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Although China and India remain the world’s largest consumers of coal, a new University of Maryland-led study found that China’s sulfur dioxide emissions fell by 75% since 2007, while India’s emissions increased by 50%. The rapid decrease of sulfur dioxide emissions in China far exceeds expectations and projections.

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

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Anthropogenic emissions were responsible for ?37% Remaining impacts were attributable to naturally occurring ozone precursor emissions (e.g., The research team said that one way to reduce pollutants quickly would be to target emissions from cars, especially in big cities. 37% and 73% of ozone and PM 2.5 impacts, respectively.

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Researchers suggests high level of air pollution in Northern Italy a co-factor in COVID-19 mortality rate

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The researchers used data from the NASA Aura satellite, which has demonstrated very high levels of air pollution across precisely these two regions. Lombardy and Emilia Romagna are Italian regions with both the highest level of virus lethality in the world and one of Europe’s most polluted areas. —Dario Caro, corresponding author.

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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. Even though larger cities are typically more energy efficient with lower per-capita emissions, more people still translates to more pollution.) for China, reflecting regional differences in industrial development and per capita emissions.

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

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These observations may also assist air quality managers in assessing the most effective approaches to emission reduction programs that will improve air quality. If emissions of that molecule are reduced, then ozone formation will be reduced—critical information for air quality managers.

Ozone 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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Studies suggest that discrepancies of as much as 30 to 50% exist between estimates of ground nitrogen dioxide inferred from the Ozone Monitoring Instrument (OMI), an instrument on NASA’s Aura satellite launched in 2004, and measurements from ground-based instruments. DISCOVER-AQ site.

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Perspective: A View Into the New GM

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Byran Nesbitt, Cadillac’s general manager, added that “ Dedicated resources, studio and engineering, allows us to nurture and build the brand identity. ”. By eliminating the weaker brands and weaker models, GM can focus more of their resources on their stronger products. Build better products. But too many older models drag it down. ”.

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