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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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These are some of the findings of a new health assessment based on the Tropospheric Ozone Assessment Report (TOAR), an effort by the International Global Atmospheric Chemistry Project to create the world’s most comprehensive database of surface ozone observations from all available ozone monitoring stations around the globe. Owen Cooper.

Ozone 255
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PNNL-led international study finds ultrafine aerosols have outsize impact on storm clouds, precipitation

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In clouds that lack UAP (left), the clouds are highly supersaturated as a result of fast drop coalescence that forms warm rain and reduces the integrated droplet surface area available for condensation. In this study, scientists studied the role of ultrafine particles less than 50 nanometers wide in the development of thunderstorms.

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Study finds increased air pollution can worsen both drought and flooding

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The findings have implications for the availability, management and use of water resources in regions around the world, say the researchers. Zhanqing Li (lead author), Feng Niu and Yanni Ding of the University of Maryland; Jiwen Fan of Pacific Northwest National Laboratory; Yangang Liu of Brookhaven National Laboratory; and Prof.

Pollution 257