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Researchers present new explanation for the long-range transport of PAH pollutants

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When airborne particles (green) form before PAHs adhere, both the pollutants and particles dissipate quickly, as shown in the top row. But when the particles form in the presence of pollutants, which is what likely happens in nature, the longer-lasting particles enable the long-range transport of the pollutants (bottom).

Pollution 244
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Study finds increased air pollution can worsen both drought and flooding

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Our findings provide unprecedented insights of the long-term net impacts of aerosols on clouds and precipitation. They can be hazardous to both human health and the environment. In polluted air, more and smaller drops are formed. This explains why air pollution can exacerbate both drought and flood. —Li et al.

Pollution 257
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Insight into benzene formation could help development of cleaner combustion engines

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That insight could also help the car industry make cleaner combustion engines. high-temperature combustion processes and carbon-rich circumstellar environments portray a similar complexity as hydrocarbon-rich atmospheres of planets and their moons. Molecular structures of the benzene molecule along with key structural isomers.

Cleaner 243
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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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Researchers from the University of Siena in Italy and Aarhus University in Denmark are suggesting that the high level of pollution in Northern Italy should be considered an additional co-factor of the high level of COVID-19 fatalities recorded in that area. Environmental Pollution , doi: 10.1016/j.envpol.2020.114465. 2020.114465.

Italy 246
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Researchers detect broad range of emerging synthetic antioxidants in dust in e-waste recyling centers

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However, the health effects of these compounds, and how readily they migrate into the environment, are largely unknown. Previous studies revealed widespread environmental pollution and human exposure to a class of compounds called low-molecular weight synthetic phenolic antioxidants. 1c00866.

Waste 434
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Melting Glaciers May Release Trapped Legacy Pollutants

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The “second peak” for Lake Oberaar supports the hypothesis of pollutant release from melting. Melting glaciers in the Alps may cause severe environmental damage due to the release of pollutants which have been frozen in ice for decades, according to research by Swiss scientists. Credit: ACS, Bogdal et al. Click to enlarge.

Pollution 186
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EEA data show air pollution goes down as Europe takes hard measures to combat coronavirus

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The European Environment Agency’s (EEA) data confirm large decreases in air pollutant concentrations—of nitrogen dioxide (NO 2 ) concentrations in particular—largely due to reduced traffic and other activities, especially in major cities under lockdown measures. Reductions of around half have been seen in some locations.

Pollution 186