Document Detail


Acid deposition critical loads modeling for the simulation of sulfur exceedance and reduction in Guangdong, China.
MedLine Citation:
PMID:  19862925     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The current acid deposition critical loads in Guangdong, China were calculated using the PROFILE model with a 3 km x 3 km resolution. Calculations were carried out for critical loads of potential acidity, actual acidity, sulfur and nitrogen, with values in extents of 0-3.5, 0-14.0, 0-26.0 and 0-3.5 kmol/(hm2 x year), respectively. These values were comparable to previously reported results and reflected the influences of vegetation and soil characteristics on the soil acid buffering capacity. Simulations of SO2 emission and sulfur deposition in this study showed that sulfur deposition core areas mirrored SO2 emission centers. The prediction of sulfur deposition after 20% and 40% reduction of SO2 emission suggested that the reduction of area sources contributed greatly to the decrease of sulfur deposition. Thus, abatement of area source emissions could be the primary way to mitigate sulfur deposition in Guangdong to meet both the provincial and national regulations of air pollution control.
Authors:
Rongliang Qiu; Shizhong Wang; Hao Qiu; Xuemei Wang; Jin Liao; Zhentian Zhang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of environmental sciences (China)     Volume:  21     ISSN:  1001-0742     ISO Abbreviation:  J Environ Sci (China)     Publication Date:  2009  
Date Detail:
Created Date:  2009-10-29     Completed Date:  2009-11-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100967627     Medline TA:  J Environ Sci (China)     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1108-17     Citation Subset:  IM    
Affiliation:
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China. eesqrl@mail.sysu.edu.cn
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MeSH Terms
Descriptor/Qualifier:
Acids
Air Pollution / analysis*
China
Environmental Monitoring / methods*
Geography
Models, Theoretical*
Sulfur / analysis*
Sulfur Dioxide / analysis
Chemical
Reg. No./Substance:
0/Acids; 7446-09-5/Sulfur Dioxide; 7704-34-9/Sulfur

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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