Analysis of Pollution Characteristics and Emissions Reduction Measures in the Main Cotton Area of Xinjiang

Chunsheng Fang, Zhuoqiong Li, Weihao Shi and Ju Wang ()
Additional contact information
Chunsheng Fang: College of New Energy and Environment, Jilin University, Changchun 130012, China
Zhuoqiong Li: College of New Energy and Environment, Jilin University, Changchun 130012, China
Weihao Shi: College of New Energy and Environment, Jilin University, Changchun 130012, China
Ju Wang: College of New Energy and Environment, Jilin University, Changchun 130012, China

IJERPH, 2023, vol. 20, issue 3, 1-14

Abstract: With cotton production in Xinjiang increasing annually, the impact on the environment of agricultural waste produced to improve production has been reflected. This study selected Bozhou of Xinjiang, the main cotton producing region in northern Xinjiang, as the research object, and collected hourly concentration data of six pollutants from 2017 to 2021, and analyzed the spatial and temporal distribution characteristics of each pollutant. At the same time, Morlet wavelet analysis was used to further analyze the variation period of PM 2.5 (PM particles with aerodynamic diameters less than 2.5 μm) concentration. The Weather Research and Forecasting model coupled with the Community Multiscale Air Quality (WRF-CMAQ) model was used to evaluate the emissions reduction measures for the most polluted month. The results showed that the concentration of particulate matter (PM particles with aerodynamic diameters less than 2.5 μm and 10 μm) decreased from the southern mountains to the north; moreover, the concentrations of CO (carbon monoxide), NO 2 (nitrogen dioxide), and SO 2 (sulfur dioxide) in the suburbs were higher than those in the urban center. The concentration of O 3 (Ozone) was the highest in summer, while the concentrations of other pollutants were high in autumn and winter. Under the time scale of a = 13, 24, PM 2.5 had significant periodic fluctuation. The health risk values of PM 2.5 and PM 10 in this study were within the scope of the United States Environmental Protection Agency (USEPA) criteria, but it is still necessary to keep a close watch on them. In the context of emissions reduction measures, agricultural sources reduced by 20%, residential sources by 40%, industrial sources by 20%, and transportation sources by 20%; no change in the power source remains. Under these conditions, the daily average value of each pollutant met the first level of the national ambient air quality standard. The research results provide a reference for the local government to formulate heavy pollution emissions reduction policies.

Keywords: WRF-CMAQ; Xinjiang main cotton region; distribution characteristics of pollutants; emission reduction measures (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/20/3/2273/pdf (application/pdf)
https://www.mdpi.com/1660-4601/20/3/2273/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:20:y:2023:i:3:p:2273-:d:1048286

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().