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Air Pollutants

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39 connected topics.


News and Opinion

Coverage of air pollutants since March 31, 2021.

Mobility restrictions can have unexpected impacts on air quality

"...An international collaborative study led by University of Helsinki has conducted a holistic study to investigate the effects of COVID-19 restrictions on several air quality pollutants for the Po Valley region in northern Italy. The area is well known to have one of the worst air quality standards in Europe and is highly influenced by anthropogenic (human-led) activities. The study was done between research groups in Finland, Italy and Switzerland and the results were published in the journal Environmental Science: Atmospheres..."

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Long-term urban emissions data show a decrease in high-income countries

"...The results show that urban centres make a large contribution to global air pollutant and CO2 emissions. Expanding the definition of urban areas to include suburbs, roughly 50% of the global emissions take place in around 1% of the global surface. When all urban areas and not only urban centres are included, around 70-80% of global emissions are included..."

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NIST laser 'comb' systems now measure all primary greenhouse gases in the air

"...Researchers at the National Institute of Standards and Technology (NIST) have upgraded their laser frequency-comb instrument to simultaneously measure three airborne greenhouse gases -- nitrous oxide, carbon dioxide and water vapor -- plus the major air pollutants ozone and carbon monoxide..."

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What happened to.. acid rain

"...Mulroney and Bush committed to cutting down on the air pollution that causes acid rain in 1991, under the Canada-U. S. Air Quality Agreement..."

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U.N.E.P. Releases Global Assessment Urging Rapid Reduction In Methane Emissions

"...Curbing global methane emissions, which have been steadily increasing since the 1980’s, requires urgent action. A vast array of industries, including agriculture, energy, and waste management, produce methane emissions, which vary in quantity from region to region. Creating change and reducing these emissions is rapidly becoming a critical necessity in tackling global warming..."

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Environmental concerns propel research into marine biofuels

"...Upon examining different types of fuels for their ability to reduce emissions of greenhouse gases and air pollutants, the researchers found biofuels produced entirely from biomass offer much higher reductions in life-cycle greenhouse gas emissions--from 67% to 93% less than HFO. Biomass-derived fuels also are mostly free of sulfur and exhibit reductions in criteria air pollutant emissions such as particulate matter..."

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Ventilation in buildings: where water sanitation was in the 1800s

"..."Action to improve ventilation to reduce exposure to airborne pathogens will bring other benefits, including reducing exposure to other air pollutants and improved performance and wellbeing. "..."

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Trevor Hancock: Active transportation is good for mental health

"...The physical health benefits of active transportation (walking, biking, public transit) are well known. Compared to cars, there are fewer emissions of carbon dioxide and various air pollutants per passenger mile, fewer accidents and more physical activity — I often joke that includes running for the bus..."

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Christmas Eve coke works fire followed by asthma exacerbations

"...The Clairton Coke Works is located in a suburb south of Pittsburgh and produces highly refined coal, or "coke," which is used as fuel in the manufacture of steel. Creating coke results in several air pollutants, which are minimized through the plant's pollution controls. On Dec..."

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AI pinpoints local pollution hotspots using satellite images

"..."Before now, researchers trying to measure the distribution of air pollutants throughout a city would either try to use the limited number of existing monitors or drive sensors around a city in vehicles," said Mike Bergin, professor of civil and environmental engineering at Duke. "But setting up sensor networks is time-consuming and costly, and the only thing that driving a sensor around really tells you is that roads are big sources of pollutants. Being able to find local hotspots of air pollution using satellite images is hugely advantageous..."

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Scientists discover three liquid phases in aerosol particles

"...Findings could help explain how air pollutants interact with the atmosphere..."

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Pollen season in Switzerland earlier and more intense due to climate change

"..."Similar to man-made air pollutants like particulate matter or nitrogen dioxide, pollen may actually have numerous negative effects on our body much beyond just nuisance," explained Eeftens. "Given the extent of the population affected and the increasing burden, it is key that we further study the health effects of pollen both acute and more long-term. " Swiss TPH just launched the EPOCHAL study to deepen the understanding of the multiple effects of pollen on health including blood pressure, lung function, ability to concentrate, mood and sleep..."

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Academic Research

Recent peer-reviewed papers about air pollutants relevant to the latest news.

Estimating future industrial emissions of hazardous air pollutants in the United States using the National Energy Modeling Syste

"...Retrospective studies such as the National Air Toxics Assessment have focused on modeling hazardous air pollutant (HAP) concentrations and exposures in the near past; however, future projections of HAPs emissions are relatively unexplored compared to those for greenhouse gases or criteria pollutants, and HAPs are typically not included in energy systems optimization or integrated assessment modeling..."

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Removal of particulate air pollutants by Australian vegetation potentially used for green barriers

"...Urban air quality monitoring and control are becoming increasingly important as the amount of airborne pollutants is directly related to public health..."

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A Review on Air Quality Measurement Using an Unmanned Aerial Vehicle

"...Recent studies show the significance of the data on microlevel pollution which includes severe air pollutants and their impacts on human..."

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Air pollutant emissions from the asphalt industry in Beijing, China

"...Improving our understanding of air pollutant emissions from the asphalt industry is critical for the development and implementation of pollution control policies..."

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Ambient air pollution and emergency department visits in Toronto, Canada

"...To investigate the acute impact of various air pollutants on various disease groups in the urban area of the city of Toronto, Canada..."

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Comparison of ammonia air concentration before and during the spread of COVID-19 in Lombardy (Italy) using ground-based and sate

"...The effect on air pollution has been studied in detail in the literature, although some pollutants, such as ammonia (NH3), have received comparatively less attention to date..."

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Environmental impact of COVID-19 led lockdown: A satellite data-based assessment of air quality in Indian megacities

"...Present research analysed the effects of COVID-19 led lockdown on air quality with special reference to major pollutants, namely nitrogen dioxide (NO2), carbon monoxide (CO), sulphur dioxide (SO2) and aerosol optical depth (AOD)..."

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Air pollutant emissions from Piraeus port: External costs and air quality levels

"...Although emissions from ships at berth are an important source of atmospheric pollutants in dense urban agglomerations, worsening thus air quality conditions of port cities, there is still a significant lack of data and uncertainty in port emissions calculations..."

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Fragranced laundry products and emissions from dryer vents: implications for air quality and health

"...Further, fragrance terpenes are primary indoor air pollutants that can react with other compounds and contribute to both indoor and outdoor air pollution..."

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Car restriction policies for better urban health: a low emission zone in Madrid, Spain

"...We evaluate if it was effective to reduce air pollutants and if there were a side effect, as pollution displacement, during its application..."

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