environmental factors: exposure to pollution.

Question 1

what is pollution?

Answer 1

contamination of the environment (air, water, land) and living organisms by harmful chemcials. noise and light pollution also affect health and wellbeing.

Question 2

how many deaths do outdoor air pollution cause each year in the UK?

Answer 2

40,000

Question 3

what are the different types of pollution?

Answer 3

• outdoor air.
• indoor air.
• water.
• land contamination.
• food pollutants.
• noise.
• light.

Question 4

what causes outdoor air pollution?

Answer 4

chemcials from factories, particles and nitrogen dioxide from vehicle exhausts.

Question 5

what causes indoor air pollution?

Answer 5

aersols, mould spores, cigarette smoke, carbon monoxide from faulty boilers.

Question 6

what causes water pollution?

Answer 6

farm fertalisers and pesticides, factory watse, sewage leaks.

Question 7

what causes land contamination?

Answer 7

landfill, intesnive farming resulting in soil pollution.

Question 8

what are food pollutants?

Answer 8

pesticides and fertalisers, chemcials used in food processing.

Question 9

what causes noise pollution?

Answer 9

machinery, traffic, loud music.

Question 10

what causes light pollution?

Answer 10

excessive artifical light, for example street lights at night.

Question 11

what are the negative effects of pollutants?

Answer 11

• during pregancy, low birth weight or premature birth.
• reduction of brain function, thinking skills and memory.
• lung damage, asthma, bronchitis, lung cancer.
• allergies, rashes, wheezing, allergic rhinitis.
• heart damage, heart disease and stroke.

Question 12

what are the effects of noise pollution?

Answer 12

• stress.
• high blood pressure.
• hearing loss.
• disrupted sleep.