SO2 and HCHO over the major cities of Kazakhstan from 2005 to 2016: Influence of political, economic and industrial changes Written on 2020-08-20. Posted in Publications. Authors: Z. Darynova, M.A. Torkmahalleh,T. Abdrakhmanov, S. Sabyrzhan, S. Sagynov, P.K. Hopke, J. Kushta Published: Scientific Reports, Nature, in printLink: 2020