| 张仕明,段秀蓉,李娜,仲军梅.2014－2022年新疆库尔勒市空气质量特征及沙尘天气影响分析[J].沙漠与绿洲气象,2024,18(5):66~73 |
| 2014－2022年新疆库尔勒市空气质量特征及沙尘天气影响分析 |
| Characteristics of air quality and impact of sand and dust weather in Korla City,Xinjiang |
| 投稿时间：2023-10-18 修订日期：2024-04-18 |
| DOI： |
| 中文关键词: 库尔勒市 空气质量 沙尘天气 PM10 PM2.5 |
| 英文关键词:Korla air quality dust weathe PM10 PM2.5. |
| 基金项目:新疆气象局项目,中国沙漠气象科学研究基金 |
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| 中文摘要: |
| 基于2014－2022年库尔勒市空气质量监测数据，分析了库尔勒市空气质量水平和污染特征，并进一步探究了沙尘天气对空气质量的影响。结果表明：2014－2022年库尔勒市年均优良率为65.3%，春季空气污染最严重，夏季空气质量最好；大气污染主要是颗粒物超标，PM10年均浓度值超过二级标准限值127%，PM2.5超31%，SO2、NO2、CO、O3均达标；首要污染物为PM10，占总超标天数的92.2%，PM2.5为首要污染物占比8.0%；受沙尘影响天气年平均100.4d，污染日79.7%受到沙尘影响；按环境监测要求剔除沙尘天气，PM10和PM2.5平均浓度分别减少18.6%和13.0%；沙尘天气对AQI平均贡献率为31.8%，对PM10贡献率为41.9%，对PM2.5贡献率为23.3%。沙尘天气对库尔勒空气质量影响明显，大气污染防治根本是沙尘天气综合治理。沙尘天气对库尔勒市空气质量影响明显，大气污染防治根本是沙尘天气的综合治理。 |
| 英文摘要: |
| This study analyzed the air quality and pollutant characteristics in Korla, based on environmental monitoring data from 2014 to 2022 and further investigated the impact of dusty weather on air quality. The results showed that the good air quality rate in Korla is 65.3% from 2014 to 2022, air pollution is most severe in the spring, air quality is best in summer. The air pollution is mainly particulate matter exceeding the standard, The annual evaluations of PM10 exceeded the second level standard limit by 127%, PM2.5 exceeded 31%, SO2, NO2, CO, O3 annual evaluations all met the standard. The percentage of days with PM10 as the primary pollutant is 92.2% and PM2.5 as the primary pollutant is 8.0%. The annual average weather affected by sand-dust weather is 100.4 days, and 79.7% of polluted days are affected by sand-dust weather. Excluding sand-dust weather according to environmental monitoring requirements, the average concentrations of PM10 and PM2.5 have respectively decreased 18.6% and 13.0%. Sand-dust weather contributed an annual average of 31.8% to the Air Quality Index (AQI), 41.9% to PM10, and 23.3% to PM2.5. Sand-dust weather has a significant impact on the Air air quality in Korla, pollution control is fundamentally a comprehensive management of dusty weather. |
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