How is smog formed?
Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog.
How does smog affect the atmosphere?
Environmental Impacts Smog affects much more than just human lives; it also has a large impact on the surrounding physical environment. Ozone and PM in particular cause damaging effects: Ozone can damage plant cells and inhibit their growth, reducing the amount of carbon dioxide that they take in during photosynthesis.
What forms when moisture in the air interacts with nitrogen oxide and sulfur dioxide?
Acid rain forms when moisture in the air interacts with nitrogen oxide and sulfur dioxide released by factories, power plants, and motor vehicles that burn coal or oil. This interaction of gases with water vapor forms sulfuric acid and nitric acids. Ozone is a form of oxygen found in the earth’s upper atmosphere.
What effect of air pollution is caused when sulfur dioxide gets high into the atmosphere?
Sulfur dioxide affects the respiratory system, particularly lung function, and can irritate the eyes. Sulfur dioxide irritates the respiratory tract and increases the risk of tract infections. It causes coughing, mucus secretion and aggravates conditions such as asthma and chronic bronchitis.
What is the main problem caused by carbon dioxide?
Extra carbon dioxide in the atmosphere increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. This increase in the Earth’s temperature is called global warming .
Why is an increase in CO2 bad?
An increase in CO2 plays havoc with the Earth’s climates by causing changes in weather patterns. According to the EPA, humans release 30 billion tons of CO2 into the atmosphere every year. Because each CO2 molecule might last for up to 200 years, this carbon overload can have long-term consequences.