Impact of the Green Light Program on haze in the North China Plain, China
<p>As the world's largest developing country, China has undergone ever-increasing demand for electricity during the past few decades. In 1996, China launched the Green Light Program (GLP), which became a national energy conservation activity for saving lighting electricity as well as an e...
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Copernicus Publications
2019-09-01
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Series: | Atmospheric Chemistry and Physics |
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Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
X. Long X. Long X. Long X. Tie X. Tie X. Tie X. Tie X. Tie J. Zhou W. Dai X. Li T. Feng G. Li G. Li J. Cao J. Cao Z. An |
spellingShingle |
X. Long X. Long X. Long X. Tie X. Tie X. Tie X. Tie X. Tie J. Zhou W. Dai X. Li T. Feng G. Li G. Li J. Cao J. Cao Z. An Impact of the Green Light Program on haze in the North China Plain, China Atmospheric Chemistry and Physics |
author_facet |
X. Long X. Long X. Long X. Tie X. Tie X. Tie X. Tie X. Tie J. Zhou W. Dai X. Li T. Feng G. Li G. Li J. Cao J. Cao Z. An |
author_sort |
X. Long |
title |
Impact of the Green Light Program on haze in the North China Plain, China |
title_short |
Impact of the Green Light Program on haze in the North China Plain, China |
title_full |
Impact of the Green Light Program on haze in the North China Plain, China |
title_fullStr |
Impact of the Green Light Program on haze in the North China Plain, China |
title_full_unstemmed |
Impact of the Green Light Program on haze in the North China Plain, China |
title_sort |
impact of the green light program on haze in the north china plain, china |
publisher |
Copernicus Publications |
series |
Atmospheric Chemistry and Physics |
issn |
1680-7316 1680-7324 |
publishDate |
2019-09-01 |
description |
<p>As the world's largest developing country, China
has undergone ever-increasing demand for electricity during the past few
decades. In 1996, China launched the Green Light Program (GLP), which
became a national energy conservation activity for saving lighting
electricity as well as an effective reduction of the coal consumption for
power generation. Despite the great success of the GLP, its effects on
haze have not been investigated and well understood. This study focused on
assessing the potential coal saving induced by the improvement of luminous
efficacy, the core of the GLP, and on estimating the consequent effects on the
haze in the North China Plain (NCP), where a large number of power
plants are located and are often engulfed by severe haze. The estimated potential
coal saving induced by the GLP can reach a massive value of 120–323 million
tons, accounting for 6.7 %–18.0 % of the total coal consumption for thermal
power generation in China. There was a massive potential emission reduction
of air pollutants from thermal power generation in the NCP, which was
estimated to be 20.0–53.8 Gg for <span class="inline-formula">NO<sub><i>x</i></sub></span> and 6.9–18.7 Gg for <span class="inline-formula">SO<sub>2</sub></span> in
December 2015. The potential emission reduction induced by the GLP plays
important roles in the haze formation, because the <span class="inline-formula">NO<sub><i>x</i></sub></span> and <span class="inline-formula">SO<sub>2</sub></span> are
important precursors for the formation of particles. To assess the impact of
the GLP on haze, sensitivity studies were conducted by applying a regional
chemical–dynamical model (WRF-CHEM). The model results suggest that in the
case of lower-limit emission reduction, the <span class="inline-formula">PM<sub>2.5</sub></span> concentration
decreased by 2–5 <span class="inline-formula">µ</span>g m<span class="inline-formula"><sup>−3</sup></span> in large areas of the NCP. In the case
of upper-limit emission reduction, there was much more remarkable decrease
in <span class="inline-formula">PM<sub>2.5</sub></span> concentration (4–10 <span class="inline-formula">µ</span>g m<span class="inline-formula"><sup>−3</sup></span>). This study is a good
example to illustrate that scientific innovation can induce important
benefits for environment issues such as haze.</p> |
url |
https://www.atmos-chem-phys.net/19/11185/2019/acp-19-11185-2019.pdf |
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doaj-cc067fa7d8aa4454849972ee7ad97f9e2020-11-24T21:24:39ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242019-09-0119111851119710.5194/acp-19-11185-2019Impact of the Green Light Program on haze in the North China Plain, ChinaX. Long0X. Long1X. Long2X. Tie3X. Tie4X. Tie5X. Tie6X. Tie7J. Zhou8W. Dai9X. Li10T. Feng11G. Li12G. Li13J. Cao14J. Cao15Z. An16State Key Laboratory of Loess and Quaternary Geology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaSchool of Environment Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaState Key Laboratory of Loess and Quaternary Geology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaCenter for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, ChinaKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaShanghai Key Laboratory of Meteorology and Health, Shanghai, 200030, ChinaNational Center for Atmospheric Research, Boulder, CO 80303, USAKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaDepartment of Geography, University of Connecticut, Storrs, Mansfield, CT 06269, USAState Key Laboratory of Loess and Quaternary Geology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaState Key Laboratory of Loess and Quaternary Geology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaState Key Laboratory of Loess and Quaternary Geology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, ChinaState Key Laboratory of Loess and Quaternary Geology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China<p>As the world's largest developing country, China has undergone ever-increasing demand for electricity during the past few decades. In 1996, China launched the Green Light Program (GLP), which became a national energy conservation activity for saving lighting electricity as well as an effective reduction of the coal consumption for power generation. Despite the great success of the GLP, its effects on haze have not been investigated and well understood. This study focused on assessing the potential coal saving induced by the improvement of luminous efficacy, the core of the GLP, and on estimating the consequent effects on the haze in the North China Plain (NCP), where a large number of power plants are located and are often engulfed by severe haze. The estimated potential coal saving induced by the GLP can reach a massive value of 120–323 million tons, accounting for 6.7 %–18.0 % of the total coal consumption for thermal power generation in China. There was a massive potential emission reduction of air pollutants from thermal power generation in the NCP, which was estimated to be 20.0–53.8 Gg for <span class="inline-formula">NO<sub><i>x</i></sub></span> and 6.9–18.7 Gg for <span class="inline-formula">SO<sub>2</sub></span> in December 2015. The potential emission reduction induced by the GLP plays important roles in the haze formation, because the <span class="inline-formula">NO<sub><i>x</i></sub></span> and <span class="inline-formula">SO<sub>2</sub></span> are important precursors for the formation of particles. To assess the impact of the GLP on haze, sensitivity studies were conducted by applying a regional chemical–dynamical model (WRF-CHEM). The model results suggest that in the case of lower-limit emission reduction, the <span class="inline-formula">PM<sub>2.5</sub></span> concentration decreased by 2–5 <span class="inline-formula">µ</span>g m<span class="inline-formula"><sup>−3</sup></span> in large areas of the NCP. In the case of upper-limit emission reduction, there was much more remarkable decrease in <span class="inline-formula">PM<sub>2.5</sub></span> concentration (4–10 <span class="inline-formula">µ</span>g m<span class="inline-formula"><sup>−3</sup></span>). This study is a good example to illustrate that scientific innovation can induce important benefits for environment issues such as haze.</p>https://www.atmos-chem-phys.net/19/11185/2019/acp-19-11185-2019.pdf |