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Title: Observed Holiday Aerosol Reduction and Temperature Cooling over East Asia

Abstract

The Spring Festival air pollution in China was investigated using the long-term observations from 2001-2012 over 323 stations. During the Spring Festival with nearly half of urban population leaving the cities for holidays, the particulate matter (PM10) concentration is about 24.5μgm-3 (23%) lower than normal days. Associated with the national-wide burning of firework, the PM10 concentration sharply increases to 123.8μgm-3 at Chinese New Year Day (increment of 35%). Similar to PM10, the SO2 and NO2 decrease from high values in normal days to a holiday minimum with reduction of 23.3% and 30.6%, respectively. The NO2 has no peak in New Year Day because of the different emission source. The night mean and minimum temperature co-vary with PM10. Both nighttime mean and minimum temperature decrease by about 2.1°C during the holidays. And in association with the pollution jump at New Year Day the night temperature simultaneously increase by about 0.89°C. The in-phase co-variations between PM10 and night temperature suggest an overall warming effect of holiday aerosol during winter in China.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1158974
Report Number(s):
PNNL-SA-95239
KP1703010
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Geophysical Research. D. (Atmospheres), 119(11):6306–6324
Additional Journal Information:
Journal Name: Journal of Geophysical Research. D. (Atmospheres), 119(11):6306–6324
Country of Publication:
United States
Language:
English

Citation Formats

Gong, Daoyi, Wang, Wenshan, Qian, Yun, Bai, Wenbing, Guo, Yuanxi, and Mao, Rui. Observed Holiday Aerosol Reduction and Temperature Cooling over East Asia. United States: N. p., 2014. Web. doi:10.1002/2014JD021464.
Gong, Daoyi, Wang, Wenshan, Qian, Yun, Bai, Wenbing, Guo, Yuanxi, & Mao, Rui. Observed Holiday Aerosol Reduction and Temperature Cooling over East Asia. United States. https://doi.org/10.1002/2014JD021464
Gong, Daoyi, Wang, Wenshan, Qian, Yun, Bai, Wenbing, Guo, Yuanxi, and Mao, Rui. 2014. "Observed Holiday Aerosol Reduction and Temperature Cooling over East Asia". United States. https://doi.org/10.1002/2014JD021464.
@article{osti_1158974,
title = {Observed Holiday Aerosol Reduction and Temperature Cooling over East Asia},
author = {Gong, Daoyi and Wang, Wenshan and Qian, Yun and Bai, Wenbing and Guo, Yuanxi and Mao, Rui},
abstractNote = {The Spring Festival air pollution in China was investigated using the long-term observations from 2001-2012 over 323 stations. During the Spring Festival with nearly half of urban population leaving the cities for holidays, the particulate matter (PM10) concentration is about 24.5μgm-3 (23%) lower than normal days. Associated with the national-wide burning of firework, the PM10 concentration sharply increases to 123.8μgm-3 at Chinese New Year Day (increment of 35%). Similar to PM10, the SO2 and NO2 decrease from high values in normal days to a holiday minimum with reduction of 23.3% and 30.6%, respectively. The NO2 has no peak in New Year Day because of the different emission source. The night mean and minimum temperature co-vary with PM10. Both nighttime mean and minimum temperature decrease by about 2.1°C during the holidays. And in association with the pollution jump at New Year Day the night temperature simultaneously increase by about 0.89°C. The in-phase co-variations between PM10 and night temperature suggest an overall warming effect of holiday aerosol during winter in China.},
doi = {10.1002/2014JD021464},
url = {https://www.osti.gov/biblio/1158974}, journal = {Journal of Geophysical Research. D. (Atmospheres), 119(11):6306–6324},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 16 00:00:00 EDT 2014},
month = {Mon Jun 16 00:00:00 EDT 2014}
}