Modelling categorical data to identify factors influencing concern for the natural environment in Iran

► Environmental concern data were collected from 9062 respondents throughout Iran. ► Loglinear techniques were used to study the interactions underlying collected data. ► A GIS showed spatial variations in education levels and concern for the environment. ► The 15-24 age group with 10-12 years education had more concern for the environment. ► Nearly 66% of respondents, with low education, had less environmental concern.