新疆“乌-昌-石”区域空气质量变化特征分析  

Analysis of Air Pollution Characteristics in Wu-Chang-Shi Area of Xinjiang

作　　者：宋思醒 邓文叶 邓葵 帕丽达·牙合甫[1] 藏晓芳 SONG Sixing;DENG Wenye;DENG Kui;Palida·Yahepu;ZANG Xiaofang(College of Grass and Environmental Science,Xinjiang Agricultural University,Urumqi Xinjiang 830052 China;Xinjiang Academy of Environmental Protection Science,Urumqi Xinjiang 830011 China;Xinjiang Key Laboratory for Environmental Pollution Monitoring and Risk Warning,Urumqi Xinjiang 830011 China;Xinjiang Engineering Technology Research Center for Cleaner Production,Urumqi Xinjiang 830011 China;Junggar Desert-oasis Ecotone Station for Scientific Observation and Research of National Environmental Protection,Urumqi Xinjiang 830011 China)

机构地区：[1]新疆农业大学草业与环境科学学院,新疆乌鲁木齐830052 [2]新疆环境保护科学研究院,新疆乌鲁木齐830011 [3]新疆环境污染监控与风险预警重点实验室,新疆乌鲁木齐830011 [4]新疆清洁生产工程技术研究中心,新疆乌鲁木齐830011 [5]国家环境保护准噶尔荒漠绿洲交错区环境观测研究站,新疆乌鲁木齐830011

出　　处：《新疆环境保护》2021年第2期30-37,共8页Environmental Protection of Xinjiang

基　　金：国家重点研发计划项目(2018YFC0213700);新疆“天山青年计划”项目(2017Q062)。

摘　　要：《自治区打赢蓝天保卫战三年行动计划(2018-2020)》将“乌-昌-石”重点区域作为主战场,其空气质量受到广泛关注。通过收集2018~2020年“乌-昌-石”区域空气质量数据,分析区域及所辖城市主要大气污染物浓度的时空分布特征和变化趋势。结果显示:2018~2020年“乌-昌-石”区域空气污染具有明显的时间和空间分布特征。2018~2020年“乌-昌-石”区域污染物PM_(10)、PM_(2.5)、NO_(2)和SO_(2)的年均浓度呈波动下降的趋势,CO和O_(3)的年均浓度呈小幅度波动上升的趋势;优良天数比例呈波动上升趋势。6种污染物质量浓度年内分布特征为单峰型分布,PM_(2.5)、PM_(10)、SO_(2)、NO_(2)、CO峰值在1~2月,O_(3)峰值在7月;五个地区的优良天数比例年内变化规律基本一致,均呈现倒“U”型曲线,1~2月污染最重,优良天数比例为22.60%~21.40%,12月次之,为38.70%。PM_(2.5)质量浓度在空间分布上呈现阜康最高、乌鲁木齐市最低,NO_(2)质量浓度分布为乌鲁木齐市最高、昌吉市和石河子市较高、其余地区较低,O_(3)质量浓度最大的地区为石河子市、其余地区均较低。The“three⁃year plan on defending the blue sky in Xinjiang(2018-2020)”had taken the“Wu⁃Chang⁃Shi”key area as the main battlefield,and its air quality has been widely concerned.Based on the air quality data of the“Wu⁃Chang⁃Shi”area and cities from 2018 to 2020,the temporal and spatial distribution characteristics,the change trend of the main air pollutants concentrations were analyzed.The results showed that the annual average concentrations of the PM_(10),PM_(2.5),NO_(2)and SO_(2)pollutants showed a fluctuating downward trend,CO and O3 showed a small fluctuation upward trend,the number of good days showed a fluctuating upward trend.The monthly concentrations of the six pollutants were single peak distribution,the peak concentrations of PM_(2.5),PM_(10),SO_(2),NO_(2)and CO were in January and February,and the peak values of O3 were in July,the values of the number of good days were from 22.60%to 21.40%in January and February,and 38.70%in December.The spatial distribution of PM2.5 was the highest in Fukang region,the lowest in Urumqi,the spatial distribution of NO2 was the highest in Urumqi,following of Changji and Shihezi regions,the largest concentration of O3 was found in Shihezi region.

关 键 词：“乌-昌-石”区域 蓝天保卫战 大气污染物 空气质量 

分 类 号：X823[环境科学与工程—环境工程]