| 邯郸地区2017—2021年PM2.5和O3污染特征 |
| Pollution Characteristics of PM2.5 and O3 in Handan Region from 2017 to 2021 |
| 投稿时间：2022-12-07 修订日期：2023-05-18 |
| DOI：10.19316/j.issn.1002-6002.2024.03.07 |
| 中文关键词: 邯郸地区 PM2.5 O3 污染特征 |
| 英文关键词:Handan region PM2.5 O3 pollution characteristics |
| 基金项目:国家自然科学基金资助项目(41807305);河北省自然科学基金资助项目(D2024402009,D2021402004);河北省中央引导地方科技发展资金项目(236Z3702G);大气重污染成因与治理攻关项目(DQGG202110);河北省化工行业挥发性有机物检测与治理技术创新中心开放课题(ZXJJ20210402) |
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| 中文摘要: |
| 利用实时监测数据分析2017—2021年邯郸市及周边区县PM2.5和O3污染特征。研究发现:2017—2021年各地区PM2.5年均质量浓度持续降低,轻度及轻度以上污染逐渐减少;2017—2019年O3污染加剧,2020年起O3年均质量浓度逐年下降,污染天不断减少。PM2.5和O3-8 h分别在1月(平均浓度为127.3 μg/m3,平均超标22d)和6月(平均浓度为233.4 μg/m3,平均超标22 d)污染最严重。结合气象参数分析来看,PM2.5与温度、风速和降水量呈显著负相关,与相对湿度呈显著正相关;O3-8h与温度呈显著正相关,而与风速、湿度和降水量的相关性较弱。后向轨迹和潜在源分析表明:邯郸地区PM2.5典型污染月受山西省中部地区污染传输影响最大,O3典型污染月受河南省东部污染传输影响最大。 |
| 英文摘要: |
| The real-time monitoring data were used to analyze the pollution characteristics of PM2.5 and O3 in Handan and its surrounding areas from 2017 to 2021. The results showed that the annual average concentration of PM2.5 in all regions continued to decrease from 2017 to 2021 with light pollution or above gradually decreased. From 2017 to 2019,O3 pollution intensified. Since 2020,the annual average concentration of O3 decreased year by year,and the number of pollution days continued to decrease. PM2.5 and O3 -8 h were the most serious polluted factors in January (average concentration of 127. 3 μg/m3 and exceeding 22 days) and June (233. 4 μg/m3 and average exceeding 22 days), respectively. Combined with the meteorological parameters, PM2.5 was significantly negatively correlated with temperature,wind speed and precipitation,and significantly positively correlated with relative humidity. O3 -8h was positively correlated with temperature,and weakly correlated with wind speed,humidity and precipitation. Backward trajectory and potential source analysis showed that the typical month of PM2.5 pollution in Handan was most affected by pollution transport in the central of Shanxi Province,and the typical month of O3 pollution was most affected by the transport in eastern Henan Province. |
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