A R Ravishankara
Biographic Data
| ID | 7993657 |
|---|---|
| NAME | A R Ravishankara |
| GIVEN NAMES | A R |
| FAMILY NAME | Ravishankara |
| SIGNATURE | RAVISHANKARA A R |
| AFFILIATIONS | Colorado State University |
| ORCID | 0000-0001-9059-8437 |
| VERIFIED | Yes |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2008 |
| LATEST PUBLICATION YEAR | 2021 |
| H-INDEX | 0 |
Could the exception become the rule? “Uncontrollable” air pollution events in the U.S. due to wildland fires
Exceptional events occur when air pollution in a specific location exceeds the National Ambient Air Quality Standards (NAAQS) due to an event that cannot be reasonably attributed to human activities, such as a wildland fire. Ground-level ozone (O _3 ) and particulate matter (PM) are Environmental Protection Agency (EPA) criteria pollutants regulated under the NAAQS. Smoke from wildland fires can increase PM and O _3 concentrations downwind of fir…
Diverse policy implications for future ozone and surface UV in a changing climate
Due to the success of the Montreal Protocol in limiting emissions of ozone-depleting substances, concentrations of atmospheric carbon dioxide, nitrous oxide, and methane will control the evolution of total column and stratospheric ozone by the latter half of the 21st century. As the world proceeds down the path of reducing climate forcing set forth by the 2015 Conference of the Parties to the United Nations Framework Convention on Climate Change …
Nitrous Oxide (N 2 O)
Unwelcome Dominance Stratospheric ozone is depleted by many different chemicals; most prominently, chlorofluorocarbons (CFCs) responsible for causing the Antarctic ozone hole. Nitrous oxide is also an ozone-depleting substance that has natural sources in addition to anthropogenic ones. Moreover, unlike CFCs, its use and emission are not regulated by the Montreal Protocol, which has helped to reverse the rate of growth of the ozone hole. Surprisin…
A laboratory investigation of the relative humidity dependence of light extinction by organic compounds from lignin combustion
Light extinction by atmospheric particles is strongly dependent on the size, chemical composition, and water content of the aerosol. Since light extinction by particles directly impacts climate and visibility, measurements of the extinction at various relative humidities (RHs) are needed. In this work, the optical growth factors, fRHext (80%RH, Dry) have been measured using cavity ring-down aerosol extinction spectroscopy at 532 nm for particles …
No prominent works on this page.
A laboratory investigation of the relative humidity dependence of light extinction by organic compounds from lignin combustion
Light extinction by atmospheric particles is strongly dependent on the size, chemical composition, and water content of the aerosol. Since light extinction by particles directly impacts climate and visibility, measurements of the extinction at various relative humidities (RHs) are needed. In this work, the optical growth factors, fRHext (80%RH, Dry) have been measured using cavity ring-down aerosol extinction spectroscopy at 532 nm for particles …
Nitrous Oxide (N 2 O)
Unwelcome Dominance Stratospheric ozone is depleted by many different chemicals; most prominently, chlorofluorocarbons (CFCs) responsible for causing the Antarctic ozone hole. Nitrous oxide is also an ozone-depleting substance that has natural sources in addition to anthropogenic ones. Moreover, unlike CFCs, its use and emission are not regulated by the Montreal Protocol, which has helped to reverse the rate of growth of the ozone hole. Surprisin…
Diverse policy implications for future ozone and surface UV in a changing climate
Due to the success of the Montreal Protocol in limiting emissions of ozone-depleting substances, concentrations of atmospheric carbon dioxide, nitrous oxide, and methane will control the evolution of total column and stratospheric ozone by the latter half of the 21st century. As the world proceeds down the path of reducing climate forcing set forth by the 2015 Conference of the Parties to the United Nations Framework Convention on Climate Change …
Could the exception become the rule? “Uncontrollable” air pollution events in the U.S. due to wildland fires
Exceptional events occur when air pollution in a specific location exceeds the National Ambient Air Quality Standards (NAAQS) due to an event that cannot be reasonably attributed to human activities, such as a wildland fire. Ground-level ozone (O _3 ) and particulate matter (PM) are Environmental Protection Agency (EPA) criteria pollutants regulated under the NAAQS. Smoke from wildland fires can increase PM and O _3 concentrations downwind of fir…
Atmospheric chemistry and aerosols (4 works) · Atmospheric Ozone and Climate (3 works) · Atmospheric sciences (3 works) · Chemistry (3 works) · Environmental Science (3 works) · Meteorology (3 works) · Ozone (3 works) · Aerosol (2 works) · Geography (2 works) · Montreal Protocol (2 works)