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Researchers say world faces air pollution pandemic

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Air pollution is responsible for shortening people’s lives worldwide on a scale far greater than wars and other forms of violence, parasitic and vector-born diseases such as malaria, HIV/AIDS and smoking, according to an open-access study published in Cardiovascular Research. The global total is 233 (221–250) million per year.

Pollution 438
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Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

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Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. For comparison, columns over the same time periods are shown for 2019. Bauwens et al.

Ozone 291
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Study found highly elevated PM2.5 in pre-COVID-19 subway air in NE US; NYC the worst

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This figure is comparable to sooty contamination from forest fires and building demolition, the study authors said. Our findings add to evidence that subways expose millions of commuters and transit employees to air pollutants at levels known to pose serious health risks over time. g/m 3 ), followed by the MTA New York at 251 ?g/m

New York 418
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Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

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A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al. Platt et al. Click to enlarge.

Pollution 362
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Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

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They used the model and the data to estimate the life cycle air pollution, greenhouse gas, and traffic externality benefits and costs of serving rides based on Chicago TNC trip data from 2019 to 2022 with fully electric vehicles. The authors acknowledge funding from Carnegie Mellon University’s Wilton E. Scott Institute for Energy Innovation.

Fleet 195
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Study finds air pollution and noise pollution each increase cardiovascular risk

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Both fine-particle air pollution and noise pollution may increase a person’s risk of developing cardiovascular disease, according to German researchers who have conducted a large population study, in which both factors were considered simultaneously. —Barbara Hoffmann, MD, MPH, study leader. 32.8%) per 2.4µg/m 3. (As

Pollution 199
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Study finds damage due to premature mortality from PM2.5 decreased >20% from 2008 to 2014

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In a new study of PM 2.5 Second, they found that while much of the air pollution policies have focused to date on the electricity sector, damages from farms are now larger than those from utilities. Indeed, farms have become the largest contributor to air pollution damages from PM2.5 related emissions. Tschofen et al.

2008 223