@data{10.12072/ncdc.SDZRAW.db0006.2021,
title = {Daily data set of nitrogen dioxide at Shangdianzi atmospheric background station, Beijing, 2018},
author = {Ma Zhiqiang and Shi Qingfeng},
url = {http://www.ncdc.ac.cn/portal/metadata/37480521-8720-421c-8eab-04b751b17d02},
cstr = {11738.11.ncdc.SDZRAW.2020.28},
doi = {10.12072/ncdc.SDZRAW.db0006.2021},
journal = {National Cryosphere Desert Data Center},
publisher = {National Cryosphere Desert Data Center(www.ncdc.ac.cn)}
}