The impact of aerosols on solar ultraviolet radiation and photochemical smog

R. R. Dickerson*, S. Kondragunta, G. Stenchikov, K. L. Civerolo, B. G. Doddridge, B. N. Holben

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

395 Scopus citations

Abstract

Photochemical smog, or ground-level ozone, has been the most recalcitrant of air pollution problems, but reductions in emissions of sulfur and hydrocarbons may yield unanticipated benefits in air quality. While sulfate and some organic aerosol particles scatter solar radiation back into space and can cool Earth's surface, they also change the actinic flux of ultraviolet (UV) radiation. Observations and numerical models show that UV- scattering particles in the boundary layer accelerate photochemical reactions aria smog production, but UV-absorbing aerosols such as mineral dust and soot inhibit smog production. Results could have major implications for the control of air pollution.

Original languageEnglish (US)
Pages (from-to)827-830
Number of pages4
JournalScience
Volume278
Issue number5339
DOIs
StatePublished - Oct 31 1997
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'The impact of aerosols on solar ultraviolet radiation and photochemical smog'. Together they form a unique fingerprint.

Cite this