3217 rural men women were interviewed to determine their knowledge on environmental health factors ; such as health water, healthy toilet, waste water and solid waste disposal.

Finding show statistically significant differences between men and women’s knowledge in more counties of Hamadan Province.

The mean knowledge of Nahavand people was the highest province, in contrast Malayer was the lowest.

In Hamadan, Malayer, Kabudarahang, Razan and Asadabad relation between literate and knowledge were statistically significant.