华南高山背景地区黑碳云内清除特征

徐海保; 马楠; 杨争; 彭龙; 谢林宏; 何瑶; 陶江川; 洪娟; 王俏巧; 王伯光; 毕新慧

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中国环境科学 ›› 2022, Vol. 42 ›› Issue (10) : 4475-4485.

大气污染与控制

华南高山背景地区黑碳云内清除特征

徐海保^1,2, 马楠^1,2, 杨争^1,2, 彭龙^1,2, 谢林宏^1,2, 何瑶^1,2, 陶江川^1,2, 洪娟^1,2, 王俏巧^1,2, 王伯光^1,2, 毕新慧^3,4,5

作者信息 +

In-cloud scavenging characteristics of black carbon in the mountain background region of South China

XU Hai-bao^1,2, MA Nan^1,2, YANG Zheng^1,2, PENG Long^1,2, XIE Lin-hong^1,2, HE Yao^1,2, TAO Jiang-chuan^1,2, HONG Juan^1,2, WANG Qiao-qiao^1,2, WANG Bo-guang^1,2, BI Xin-hui^3,4,5

Author information +

文章历史 +

摘要

基于2020年南岭背景高山地区的3个典型云事件，利用地用逆流虚拟撞击器采集云中颗粒物，结合单颗粒黑碳光度计和激光雾滴谱仪分析黑碳浓度及云参数特征，探讨黑碳云内清除率及其影响因素.结果表明：进入云内的黑碳约占整体的20%，而云中含黑碳云滴的占比（4.67%）则少于含黑碳间隙颗粒的占比（15.31%）；黑碳的分粒径质量清除率和数量清除率接近，变化范围均为28%~59%；高液态含水量和云滴数浓度有利于黑碳云内清除率的增加，而黑碳云内清除率会随黑碳总浓度的增加而降低，各因素对于黑碳云内清除的影响由大到小为：云滴数浓度>液态含水量>总黑碳浓度.

Abstract

During three typical cloud events occurred in the mountain region of South China, a ground-based counterflow virtual impactor was used to collect particulate matter in clouds. A single particle soot photometer and a fog monitor were used to analyze the black carbon (BC) concentration and cloud parameters, respectively. BC in-cloud scavenging efficiency and its influencing factors were discussed. Results showed that the proportion of in-cloud BC was about 20%. 4.67% droplets contained BC, while the proportion of BC-containing interstitial particles is 15.31%. The mass and number scavenging efficiency of BC with different particle sizes were similar, ranging from 28% to 59%. High liquid water content and cloud droplet number concentration were beneficial to the in-cloud scavenging of BC, while BC in-cloud scavenging efficiency decreased with increasing total BC concentration. The order of the influence factors of BC in-cloud scavenging efficiency was cloud droplet number concentration > liquid water content> total BC concentration.

导出引用

徐海保, 马楠, 杨争, 彭龙, 谢林宏, 何瑶, 陶江川, 洪娟, 王俏巧, 王伯光, 毕新慧. 华南高山背景地区黑碳云内清除特征[J]. 中国环境科学. 2022, 42(10): 4475-4485

XU Hai-bao, MA Nan, YANG Zheng, PENG Long, XIE Lin-hong, HE Yao, TAO Jiang-chuan, HONG Juan, WANG Qiao-qiao, WANG Bo-guang, BI Xin-hui. In-cloud scavenging characteristics of black carbon in the mountain background region of South China[J]. China Environmental Science. 2022, 42(10): 4475-4485

中图分类号： X513

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