摘要
针对四川资阳市2024年春节期间(2月1日至17日)的PM_(2.5)污染过程,利用资阳市国控站及组分站的监测数据,对污染期间PM_(2.5)的变化特征及其成分进行了分析,并结合气象参数综合分析了此次污染的成因。结果显示,从春节前的2月4日起,PM_(2.5)持续升高,并于大年初一(2月10日)达到峰值,涨幅超过5倍。其中,硫酸盐和氯离子的涨幅最高,分别达到23倍和38倍,其余组分也均有不同程度的升高。期间共计发生颗粒物污染119 h,其中师范学校和资阳中学两个国控点的区域污染发生时间最早、持续时间最长。烟花爆竹的燃放与不利气象条件叠加,是导致颗粒物浓度升高和空气质量恶化的主要原因。
In response to PM_(2.5) pollution process during Spring Festival period of 2024(February 1 to 17)in Ziyang,Sichuan,the monitoring data from Ziyang State Control Station and its sub stations were used to analyze the characteristics and components of PM_(2.5) changes during the pollution period,and the causes of this pollution were comprehensively analyzed in combination with meteorological parameters.The results showed that PM_(2.5) continued to rise from February 4th before Spring Festival and reached its peak on the first day of the lunar new year(February 10th),with an increase of more than 5 times.Among them,the increase in sulfate and chloride ions was the highest,reaching 23 times and 38 times respectively,and the other components also increased to varying degrees.During this period,a total of 119 h of particulate matter pollution occurred,with the earliest and longest duration of pollution occurring in the areas of the two national control points,Normal School and Ziyang Middle School.The combination of fireworks and firecrackers and unfavorable weather conditions were the main reason for the increase in particulate matter concentration and deterioration of air quality.
作者
罗攀
黄海洲
文科
刘强
胡永存
杨超
LUO Pan;HUANG Haizhou;WEN Ke;LIU Qiang;HU Yongcun;YANG Chao(Sichuan Ziyang Ecological Environment Monitoring Center Station,Sichuan Ziyang 641300;Lihero Technology(Hunan)Co.,Ltd.,Hunan Changsha 410205,China)
出处
《广州化工》
2025年第2期116-118,共3页
GuangZhou Chemical Industry
