was to investigate the arsenic removal from surface water of Chelpo area in north-east of Iran using the macro-algae, Chara.

Four reactors were used in this study with the initial arsenic concentrations of 50, 100, 200, and 300 mgr/L. Besides the assessment...

The north-east of Iran is a semi-arid region and faces a water shortage crisis. Therefore, monitoring water resources using accurate methods such as stable isotopes technique is vitally important. In this study, precipitation events were sampled...

Reasons for culling of Holstein dairy cows in north east of Iran...