Solutions: Some solutions for quelling the effects of photochemical smog include a reduction in the use of one's automobiles. Cars and other petroleum powered vehicles are at the forefront of the effects and hazards of photochemical smog. They are the main contributors of the excess amounts of hydrocarbons and nitric oxides in today's atmosphere. The pollution is growing at an alarming rate, especially over the past decade. At this rate, photochemical smog may be very hazardous. People are traveling a lot more and in turn increasing the amount of photochemical smog emitted into the air. Possible solutions are very simple, yet very effective. Instead of using your car to run local errands and short trips, walking or biking is much better.