effectiveness evaluation of temporary emission control action in 2016 in winter in shijiazhuang, china
Clicks: 82
ID: 210648
2018
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Emerging Content
24.3
/100
82 views
8 readers
AI Quality Assessment
Not analyzed
Readership in this journal
EmergingRanked #710 of 850 articles by views in Journal of agricultural and food chemistry
Most read
Least read
Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 850 in total.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
To evaluate the environmental effectiveness of the control measures for
atmospheric pollution in Shijiazhuang, China, a large-scale controlling
experiment for emission sources of atmospheric pollutants (i.e. a temporary
emission control action, TECA) was designed and implemented during 1 November 2016 to 9 January 2017. Compared to the no-control action and heating
period (NCAHP), under unfavourable meteorological conditions, the mean
concentrations of PM2.5, PM10, SO2, NO2, and chemical
species (Si, Al, Ca2+, Mg2+) in PM2.5 during the control
action and heating period (CAHP) still decreased by 8, 8, 5,
19, 30.3, 4.5, 47.0, and 45.2 %, respectively,
indicating that the control measures for atmospheric pollution were effective. The effects of control measures in suburbs were
better than those in urban area, especially for the control effects of
particulate matter sources. The control effects for emission sources of
carbon monoxide (CO) were not apparent during the TECA period, especially in
suburbs, likely due to the increasing usage of domestic coal in suburbs along
with the temperature decreasing.The results of positive matrix factorization (PMF) analysis showed that crustal dust, secondary sources,
vehicle emissions, coal combustion and industrial emissions were main
PM2.5 sources. Compared to the whole year (WY) and the no-control
action and no-heating period (NCANHP), the contribution concentrations and
proportions of coal combustion to PM2.5 increased significantly during
other stages of the TECA period. The contribution concentrations and proportions
of crustal dust and vehicle emissions to PM2.5 decreased noticeably
during the CAHP compared to other stages of the TECA period. The contribution
concentrations and proportions of industrial emissions to PM2.5 during
the CAHP decreased noticeably compared to the NCAHP. The pollutants'
emission sources during the CAHP were in effective control, especially for
crustal dust and vehicles. However, the necessary coal heating for the cold winter
and the unfavourable meteorological conditions had an offset effect on the
control measures for emission sources to some degree. The results also
illustrated that the discharge of pollutants might still be enormous even
under such strict control measures.The backward trajectory and potential source contribution function (PSCF)
analysis in the light of atmospheric pollutants suggested that the potential
source areas mainly involved the surrounding regions of Shijiazhuang, i.e.
south of Hebei and north of Henan and Shanxi. The regional nature of the
atmospheric pollution in the North China Plain revealed that there is an
urgent need for making cross-boundary control policies in addition to local
control measures given the high background level of
pollutants.The TECA is an important practical exercise but it cannot be advocated for as
the normalized control measures for atmospheric pollution in China. The
direct cause of atmospheric pollution in China is the emission of pollutants
exceeding the air environment's self-purification capacity, which is caused
by an unreasonable and unhealthy pattern for economic development in
China.
| Reference Key |
liu2018atmosphericeffectiveness
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;B. Liu;Y. Cheng;M. Zhou;D. Liang;Q. Dai;L. Wang;W. Jin;L. Zhang;Y. Ren;J. Zhou;C. Dai;J. Xu;J. Wang;Y. Feng;Y. Zhang |
| Journal | Journal of agricultural and food chemistry |
| Year | 2018 |
| DOI |
10.5194/acp-18-7019-2018
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.