黑龙江省重点城市AQI指数特征及其与气象要素之关系
康恒元1,2, 刘玉莲3, 李涛1,*

Characteristics of Air Quality Index and Its Relationship with Meteorological Factors in Key Cities of Heilongjiang Province
KANG Heng-yuan1,2, LIU Yu-lian3, LI Tao1
黑龙江重点城市各级环境空气质量级别年内占比 (%)