IB ESS: Unit 6

Tropospheric ozone

Nitrogen dioxide can absorb sunlight and break up to release oxygen atoms that combine with oxygen in the air to form....

determine the frequency and severity of photochemical smog

temperature inversions, surrounding mountains, sunny calm weather conditions.....

Tropospheric ozone

Nitrogen dioxide can absorb sunlight and break up to release oxygen atoms that combine with oxygen in the air to form....

determine the frequency and severity of photochemical smog

temperature inversions, surrounding mountains, sunny calm weather conditions.....

thermal inversion

when a layer of dense, cool air is trapped beneath a layer of less dense, warm air.

Acid deposition

sulphuric and nitric acid in rainwater

Dry deposition

the particulates deposited before mixing with water in the atmosphere

Carbonic acid

the type of acid found naturally in rain water

Nitric acid

the acid produced as a result of nitrogen oxides being released into the atmosphere

Sulphuric acid

the acid produced as a result of sulphur dioxides being released into the atmosphere

damage to root systems, conifers suffer burnt needles

impact of acid rain on vegetation

acidification of lakes and the leaching of nitrates form soils causes eutrophication.

impact of acid rain on aquatic ecosystems

corrosion of limestone structures

impact of acid rain on buildings/statues

1987

In which year was the Montreal protocol signed?

ozone depletion

The reduction in the concentrations of stratospheric ozone- this leaves holes in the ozone layer.

atmosphere structure

The layers of the atmosphere

cause ozone depletion?

industrial products or by-products including CFCs, hydrochlorofluorocarbons (HCFCs), halons, and methyl bromide (bromomethane)

where is the major "ozone hole"?

Antartica

CFCs, HCFCs

what are ozone depleting substances? (ODS)