|
Environ Pollut
Title: | Impacts of transportation sector emissions on future U.S. air quality in a changing climate. Part II: Air quality projections and the interplay between emissions and climate change |
|
Author(s): | Campbell P; Zhang Y; Yan F; Lu Z; Streets D; |
|
Address: | "Department of Marine, Earth, and Atmospheric Sciences, NCSU, Raleigh, NC 27695, USA. Department of Marine, Earth, and Atmospheric Sciences, NCSU, Raleigh, NC 27695, USA. Electronic address: yzhang9@ncsu.edu. Computation Institute, University of Chicago, Chicago, IL 60637, USA; Energy Systems Division, Argonne National Laboratory, Argonne, IL 60439, USA" |
|
Journal Title: | Environ Pollut |
Year: | 2018 |
Volume: | 20180424 |
Issue: | |
Page Number: | 918 - 930 |
DOI: | 10.1016/j.envpol.2018.03.016 |
|
ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
|
Abstract: | "In Part II of this work we present the results of the downscaled offline Weather Research and Forecasting/Community Multiscale Air Quality (WRF/CMAQ) model, included in the 'Technology Driver Model' (TDM) approach to future U.S. air quality projections (2046-2050) compared to a current-year period (2001-2005), and the interplay between future emission and climate changes. By 2046-2050, there are widespread decreases in future concentrations of carbon monoxide (CO), nitrogen oxides (NO(x) = NO + NO(2)), volatile organic compounds (VOCs), ammonia (NH(3)), sulfur dioxide (SO(2)), and particulate matter with an aerodynamic diameter?ª+=?ª+2.5?ª+mum (PM(2.5)) due mainly to decreasing on-road vehicle (ORV) emissions near urban centers as well as decreases in other transportation modes that include non-road engines (NRE). However, there are widespread increases in daily maximum 8-hr ozone (O(3)) across the U.S., which are due to enhanced greenhouse gases (GHG) including methane (CH(4)) and carbon dioxide (CO(2)) under the Intergovernmental Panel on Climate Change (IPCC) A1B scenario, and isolated areas of larger reduction in transportation emissions of NO(x) compared to that of VOCs over regions with VOC-limited O(3) chemistry. Other notable future changes are reduced haze and improved visibility, increased primary organic to elemental carbon ratio, decreases in PM(2.5) and its species, decreases and increases in dry deposition of SO(2) and O(3), respectively, and decreases in total nitrogen (TN) deposition. There is a tendency for transportation emission and CH(4) changes to dominate the increases in O(3), while climate change may either enhance or mitigate these increases in the west or east U.S., respectively. Climate change also decreases PM(2.5) in the future. Other variable changes exhibit stronger susceptibility to either emission (e.g., CO, NO(x), and TN deposition) or climate changes (e.g., VOC, NH(3), SO(2), and total sulfate deposition), which also have a strong dependence on season and specific U.S. regions" |
|
Keywords: | "Air Pollutants/*analysis Air Pollution/analysis/*statistics & numerical data Carbon Dioxide Carbon Monoxide *Climate Change Forecasting Models, Theoretical Nitrogen Oxides/analysis Ozone/analysis Particulate Matter/analysis Sulfur Dioxide Transportation U;" |
|
Notes: | "MedlineCampbell, Patrick Zhang, Yang Yan, Fang Lu, Zifeng Streets, David eng England 2018/04/24 Environ Pollut. 2018 Jul; 238:918-930. doi: 10.1016/j.envpol.2018.03.016. Epub 2018 Apr 24" |
|
|
|
|
|
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 22-11-2024
|