Effects of Photochemical Smog. Photochemical smog's effects cause damage to the respiratory system and environmental systems with the release of nitrogen oxide (NO), ozone and volatile organic compounds (VOCs). These effects are worse when the sun is highest because the pollutants react with it.
This cut is called a flank steak because it literally comes from the flank of the cow â its side, below the ribs. It's a fairly wide and thin cut; it's only 1 to 1 1/2 inches at its thickest and it becomes even thinner toward one end.
The steak should be 1/2 - 1â³ thick. Grill for 4 - 7 minutes for medium rare, 6 - 9 minutes for medium. I'd check it before that though, as I've noticed meat cooks faster than the given times on mine.