article thumbnail

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

Green Car Congress

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%. Illustration: Chris McLinden, Environment and Climate Change Canada. Click to enlarge. —Can Li.

India 170
article thumbnail

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

Green Car Congress

Anthropogenic emissions were responsible for ?37% Remaining impacts were attributable to naturally occurring ozone precursor emissions (e.g., —Dr Johan Kuylenstierna, co-author and Policy Director of the Stockholm Environment Institute (SEI). 37% and 73% of ozone and PM 2.5 impacts, respectively. Anenberg, Daven K.

Pollution 207
article thumbnail

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

Green Car Congress

The researchers used data from the NASA Aura satellite, which has demonstrated very high levels of air pollution across precisely these two regions. The team compared these data with the Air Quality Index—a measurement of air quality developed by the European Environment Agency.

Italy 246
article thumbnail

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

Green Car Congress

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
article thumbnail

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

Green Car Congress

Ground sites maintained by the Maryland Department of the Environment form the backbone of the surface network. Sampling will focus on an area extending from Beltsville, Md., to the northeastern corner of Maryland in a pattern that follows major roadway traffic corridors.

Ozone 186
article thumbnail

Perspective: A View Into the New GM

Green Car Congress

GM says it is committed to establishing a harmonized national program to improve fuel economy and lower greenhouse gas emissions. Direct Injection can improve fuel economy by 3% and reduce cold start emissions by 25%. I was able to spend 10 minutes driving a Saturn Aura sedan with an (HCCI) engine system. Focus on fuel economy.

GM 262