华北地区颗粒物浓度时空分布特征及其因素
詹建益, 黄观超, 周华, 段文松, 吴安安, 王文洁, 李婷

Spatial and temporal distribution characteristics and factors of particulate matter concentration in North China
ZHAN Jian-yi, HUANG Guan-chao, ZHOU Hua, DUAN Wen-song, WU An-an, WANG Wen-jie, LI Ting
图2 2017年华北地区PM2.5和PM10月均浓度变化
Fig. 2 The average monthly concentration distribution of PM2.5 and PM10 in North China in 2017