The Rain that purging the particles in the air

After heavy rain and hail, my city's air cleaned. Before rain this view wasn't clean.

During rain, we were in the classroom and our Professor was showing gastrointestinal x-ray images. When rain and rain got heavy, unfortunately our interest turned to rain. And watched people who run away from the hail, who trying to protect his car from hail. And turned our lesson.

After rain. With lights from the sun, with small groups of clouds, this scenery was awesome.