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.
When buying steak choose one with fine texture that's firm to the touch. Make sure the steak is well marbleized; you should see the white fat. A substantial amount of evenly distributed fat contributes greatly to the taste of the steak. The best steak is 1 to 1Â½ inches (2.5 to 3.8 centimeters) thick.