Statistical analysis of water policies, air quality and climate in Isfahan

In recent years the upstream water of Zayandeh river has been increasingly diverted to agricultural and industrial usage. As a consequence, downstream Zayandeh river, whose bed passes through the city of Isfahan, is suffering from a drought during many months per year. In this paper, we consider the impact of this intervention on air quality and climate variables at Isfahan city level. To do this, climate impact is assessed with short term intervention analysis while, for air quality, we extend to the multivariate recently proposed for impact assessment of environmental policies at city level on single pollutants.