(e) i. Atmospheric pollution is worse in places with a dry climate because the particles cannot rise and move so the area becomes dry and smoggy due to the particles being caught between a layer of warm particles and a layer of cool particles, this is called an inversion layer. In addition, in dry climates there is not a lot of wind and sunlight so the high energy particles cannot move.
iv. Strategies for reducing traffic emissions are likely to be more effective in developing world cities like Cairo and Beijing. I think this because in Los Angeles, although they are more developed and have the money to provide public transport, the pollution stays in the city and cannot escape it. In Los Angeles there are a lot of valleys and so an inversion layer occurs when the cool water and particles are below a layer of hot air particles and cannot escape. The valley traps the cool air so they do not have a lot of energy. And with little wind in Los Angeles the particles cannot rise and disperse
