@data{10.5281/zenodo.3855067,
title = {COVID‐19 Impact on the Concentration and Composition of Submicron Particulate Matter in a Typical City of Northwest China},
author = {Xu Jianzhong },
url = {http://www.ncdc.ac.cn/portal/metadata/92db9bdb-7d0d-4dff-8f91-a98c6957490d},
cstr = {11738.11.NCDC.ZENODO.DB3948.2023},
doi = {10.5281/zenodo.3855067},
journal = {National Cryosphere Desert Data Center},
publisher = {National Cryosphere Desert Data Center(www.ncdc.ac.cn)}
}