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Title: Assessing the nonlinear response of fine particles to precursor emissions: Development and application of an extended response surface modeling technique v1.0

Journal Article · · Geoscientific Model Development (Online)
 [1];  [2];  [3];  [1];  [4];  [3];  [5];  [4];  [6];  [1];  [1];  [2]
  1. Tsinghua Univ., Beijing (China)
  2. Tsinghua Univ., Beijing (China); State Environmental Protection Key Lab. of Sources and Control of Air Pollution Complex, Beijing (China)
  3. U.S. Environmental Protection Agency, Research Triangle Park, NC (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States)
  5. South China Univ. of Technology (SCUT), Guangzhou (China)
  6. Univ. of Tennessee, Knoxville, TN (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

An innovative extended response surface modeling technique (ERSM v1.0) is developed to characterize the nonlinear response of fine particles (PM₂̣₅) to large and simultaneous changes of multiple precursor emissions from multiple regions and sectors. The ERSM technique is developed based on the conventional response surface modeling (RSM) technique; it first quantifies the relationship between PM₂̣₅ concentrations and the emissions of gaseous precursors from each single region using the conventional RSM technique, and then assesses the effects of inter-regional transport of PM₂̣₅ and its gaseous precursors on PM₂̣₅ concentrations in the target region. We apply this novel technique with a widely used regional chemical transport model (CTM) over the Yangtze River delta (YRD) region of China, and evaluate the response of PM₂̣₅ and its inorganic components to the emissions of 36 pollutant–region–sector combinations. The predicted PM₂̣₅ concentrations agree well with independent CTM simulations; the correlation coefficients are larger than 0.98 and 0.99, and the mean normalized errors (MNEs) are less than 1 and 2% for January and August, respectively. It is also demonstrated that the ERSM technique could reproduce fairly well the response of PM₂̣₅ to continuous changes of precursor emission levels between zero and 150%. Employing this new technique, we identify the major sources contributing to PM₂̣₅ and its inorganic components in the YRD region. The nonlinearity in the response of PM₂̣₅ to emission changes is characterized and the underlying chemical processes are illustrated.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1195951
Journal Information:
Geoscientific Model Development (Online), Vol. 8, Issue 1; ISSN 1991-9603
Publisher:
European Geosciences UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 48 works
Citation information provided by
Web of Science

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Cited By (6)

Quantifying the effect of organic aerosol aging and intermediate-volatility emissions on regional-scale aerosol pollution in China journal June 2016
Decadal-scale trends in regional aerosol particle properties and their linkage to emission changes journal May 2017
Impacts of transboundary air pollution and local emissions on PM 2.5 pollution in the Pearl River Delta region of China and the public health, and the policy implications journal March 2019
Decomposition Analysis of Factors that Drive the Changes of Major Air Pollutant Emissions in China at a Multi-Regional Level journal December 2019
Assessment of inter-city transport of particulate matter in the Beijing–Tianjin–Hebei region journal January 2018
The acidity of atmospheric particles and clouds journal January 2020

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