Gas Phase Atmospheric Chemistry.

... Assessed Exercise, Gas Phase Atmospheric Chemistry. Vicky Thornber. Unlike stratospheric ozone, which is necessary for life on earth, tropospheric ozone has been found to have many negative consequences. It has detrimental effects on both human health (causes respiratory problems) and on the growth of crops and vegetation. Tropospheric ozone is often called "bad" ozone because it can damage living tissue and break down certain materials. Ozone affects plants in several ways. High concentrations of ozone cause plants to close their stomata, which slows down photosynthesis and plant growth. Ozone may also enter the plants through the stomata and directly damage internal cells. Rubber, textile dyes, fibres, and certain paints may be weakened or damaged by exposure to ozone. Some elastic materials can become brittle and crack, while paints and fabric dyes may fade more quickly. When ozone pollution reaches high levels, pollution alerts are issued urging people with respiratory problems to take

want to read more? →