Air pollution

Question 1

What is air pollution?

Answer 1

atmospheric pollution. It is one of the most dangerous and complex types of pollution because it has far-reaching impacts on both the marine and land environments.

Question 2

When does it occur?

Answer 2

When toxic chemicals in gaseous form enter the atmosphere resulting in negative effects on the environment.

Question 3

What are the major pollutants?

Answer 3

 Suspended Particulate Matter
 Volatile Organic Compounds
 Carbon Monoxide
 Nitrogen Oxides
 Sulfur Oxides
 Ozone

Question 4

Natural causes of air pollution include:

Answer 4

Volcanic eruptions
 Pollen dispersal
 Methane gas from farm animals
 Wind blowing over areas of soil erosion
 Forest fires

Question 5

Human causes

Answer 5

Burning of fossil fuels, Mining operations, Fertilizer dust, Pesticides – insecticides and disinfectants, Fumes from aerosol sprays

Question 6

What is particulate matter?

Answer 6

Particulate matter is the term for tiny

particles found in the air.

Question 7

What is a VOC?

Answer 7

Volatile Organic compounds: cleaning products.

group of carbon-based chemicals (organic) that easily evaporate at room temperature (volatile).

Question 8

CFCs

Answer 8

Chlorofluorocarbons- contain carbon, chlorine and fluorine atoms.

Question 9

Effects on health:

Answer 9

irritation, upper respiratory infections, headaches, nausea, allergic reactions, lung cancer, heart disease, damage to brain, nerves, liver or kidneys.

Question 10

Other effects of air pollution than health:

Answer 10

Smog, Acid rain, greenhouse effect, global warming the breakdown of the ozone layer.

Question 11

What is smog?

Answer 11

smoke and fog since the sky tend to take on the appearance of a smokey fog. Nitrogen oxide, a gas that is present in exhaust fumes, and sunlight triggers chemical reactions that produce brown, grey or white
smog.

Question 12

What is acid rain?

Answer 12

any form of precipitation with high levels of nitric and sulfuric acids.These gases mix with water droplets in the atmosphere creating weak solutions of nitric and
sulphuric acids. When precipitation occurs these solutions fall as acid rain.

Question 13

what effect does acid rain have?

Answer 13

Kills vegetation by the acids in the soil, increases the acidity level of the water, kills marine organisms

Question 14

What is ozone depletion?

Answer 14

One atom of chlorine can destroy more than a hundred thousand ozone
molecules – hence, the depletion of large amounts of ozone – the ‘hole’ in the
ozone layer was first noted in the 1980’s over Antarctica. Since ozone occurs
naturally and CFCs are banned, scientists estimate that by 2070 the hole in
the ozone layer will be closed.

Question 15

What does the ozone layer do?

Answer 15

High in the stratosphere, roughly
6 to 30 miles above the surface,the ozone layer acts like sunscreen, shielding
Earth from potentially harmful ultraviolet radiation that can cause skin
cancer and cataracts (clouding of the eye’s lens) as well as damaged plants.

Question 16

How can we reduce air pollution?

Answer 16

Different sources of energy (natural) just nothing that includes burning stuff, electric vehicles if u rich, The international treaties eg. Paris Agreement & Montreal protocol.
Reforestation
Replace CFC with HFC (Hydrofluorocarbons)