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Chemical kinetics and photochemical data for use in stratospheric modeling
As part of a series of evaluated sets, rate constants and photochemical cross sections compiled by the NASA Panel for Data Evaluation are provided. The primary application of the data is in theExpand
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Stratospheric sink for chlorofluoromethanes: chlorine atomc-atalysed destruction of ozone
Chlorofluoromethanes are being added to the environment in steadily increasing amounts. These compounds are chemically inert and may remain in the atmosphere for 40–150 years, and concentrations canExpand
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Secondary organic aerosol formation from anthropogenic air pollution: Rapid and higher than expected
[1] The atmospheric chemistry of volatile organic compounds (VOCs) in urban areas results in the formation of ‘photochemical smog’, including secondary organic aerosol (SOA). State-of-the-art SOAExpand
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Persistent sulfate formation from London Fog to Chinese haze
Significance Exceedingly high levels of fine particulate matter (PM) occur frequently in China, but the mechanism of severe haze formation remains unclear. From atmospheric measurements in twoExpand
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Elucidating severe urban haze formation in China
  • S. Guo, M. Hu, +9 authors R. Zhang
  • Geography, Medicine
  • Proceedings of the National Academy of Sciences
  • 24 November 2014
Significance We illustrate the similarity and difference in particulate matter (PM) formation between Beijing and other world regions. The periodic cycle of PM events in Beijing is regulated byExpand
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Absolute absorption cross sections of ozone in the 185- to 350-nm wavelength range
The absorption cross sections of ozone have been measured in the wavelength range 185-350 nm and in the temperature range 225-298 K. The absolute ozone concentrations were established by measuringExpand
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Identifying airborne transmission as the dominant route for the spread of COVID-19
Significance We have elucidated the transmission pathways of coronavirus disease 2019 (COVID-19) by analyzing the trend and mitigation measures in the three epicenters. Our results show that theExpand
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A missing sink for gas-phase glyoxal in Mexico City: Formation of secondary organic aerosol
[1] The sources of secondary organic aerosol (SOA) are highly uncertain. Direct measurements of gas-phase glyoxal in Mexico City are compared to experimentally constrained model predictions. ObservedExpand
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The Reaction Probability of OH on Organic Surfaces of Tropospheric Interest
Using a flow-tube reactor coupled to a chemical ionization mass spectrometer, we investigated the heterogeneous loss of OH on Halocarbon wax, two types of organized organic monolayers, and severalExpand
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Megacities and Atmospheric Pollution
Abstract About half of the world's population now lives in urban areas because of the opportunity for a better quality of life. Many of these urban centers are expanding rapidly, leading to theExpand
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