Can I receive unemployment if i quit my job?

The company I work for has recently undergone a change in the majority of the management team. My boss was recently fired and I feel that i am being targeted due to our friendship. They have placed an unworkable amount of duties on me and the number of duities seems to grow weekly. I have questioned workplace matters that I feel are illegal and discriminatory and have received bogus write ups afterwards. I have no doubt that the amount of work being placed on me is a "set-up" for me to fail. The conditions which i work under are unbearable and i fear have begun to affect my overall health and stability. If i quit due to these work conditions can I receive unemployment. I want to e-mail my supervisor and explain that the workload is too much, but fear that that is exactly what they are waiting for.