Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo 454000, China
Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo 454000, China
Environmental Protection Bureau of Qinyang City, Qinyang 454550, China
Jiaozuo Environment Monitoring Station, Jiaozuo 454000, China
Copyright © Wenwei Pan, Chengjie Li, Jianshe Zhao, Li Yuan et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.