Environmental pollution 2

Basic Science JSS1 First Term

Week 8

Environmental pollution 2

Performance objectives:

  1. Identify various pollutants and causes


Causes of air pollution

1.Carbon dioxide from exhausts of motor vehicles.

2.Industrial processes like refineries, coal mines etc.


Consequences & Control Measures of Air Pollution

  1. Carbon monoxide: In low concentration dizziness, headache, nausea, and tiredness are caused. If inhaled for a long period even in low concentration, causes brain damage, at a higher concentration, it can cause unconsciousness and eventually death. It reacts with haemoglobin in the blood preventing it from taking oxygen and forms carboxyhemoglobin, which can lead to death by suffocation.
  • Sulphur Dioxide: It causes lung diseases in humans. It changes the green colour of plants’ leaves and corrodes metals.

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