2024年恩施市大氣污染物濃度變化特征分析

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中圖分類(lèi)號(hào)：X513 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1008-9500(2025)06-0221-04

DOI: 10.3969/j.issn.1008-9500.2025.06.064

Analysis of the Characteristics of Atmospheric Pollutant Concentration Changes in Enshi City in 2024

YANGFan,RANRuiqiao,TIANHaihua (Enshi Environmental Monitoring Station,Enshi 445ooo,China)

Abstract:Basedonthe2O24automatic monitoringdataofambientairinEnshicityHubei province,adetailedanalysisof theconcentrationof atmospheric pollutants is conducted to explore the time seriesvariation characteristicsandpollution causesofatmosphericpolutants.Theresearchresults indicatethatin2O24,theenvironmentalairquality inEnshi city was in a good state for most of the time,with 94.8% of the days having excellent Air Quality Index (AQI).The concentrations of fine particulate matter ( PM2.5 ）and inhalableparticulatematter ( PM10 ）show seasonal high values,especially in winter, whicharerelated tometeorologicalconditionsoflowwind speed,low temperature,and highhumidity.Inaddition,the concentrations of NO and O3 show a negative correlation throughout the year,reflecting the influence of photochemical reactions.The concentrations of SO 2 and CO are generallylow,with litle variation throughout the year.

eywords:air pollutants; characteristics of concentration changes;Enshi city

近年來(lái)，隨著恩施市經(jīng)濟(jì)快速發(fā)展，機(jī)動(dòng)車(chē)尾氣、建筑施工揚(yáng)塵、秸稈焚燒、飲食業(yè)油煙及工業(yè)企業(yè)等污染源排放的大氣污染物日益增加，大氣污染問(wèn)題逐漸凸顯。（剩余6517字）