Pollution and Introduction to Air Pollution
Air pollutionAir pollution occurs when the air contains gases, dust, fumes or odour in harmful amounts. That is, amounts which could be harmful to the health or comfort of humans and animals or which could cause damage to plants and materials.
Types of air pollutionThe air pollution are basically of two types:
- Gaseous pollution
- Particulate pollution
Soil pollutionContamination of soil with harmful substances that can adversely affect the quality of the soil and the health of those living on it is called as soil pollution.
Types of pollutionPollution is of 5 main types:
- Atmospheric or air pollution
- Hydroscopic or water pollution
- Lithospheric or land pollution
- Radioactive pollution
- Noise or sound pollution
Noise pollutionThe major noise pollutants are traffic- be it land traffic or air traffic. Factories and machines, generators, loudspeakers and household gadgets all contribute to noise pollution.
Important types of pollutionPollution can be classified as follows: On the basis of the part of environment where it takes place - atmosphere, hydrosphere and lithosphere, it is known as air pollution, water pollution and soil pollution, respectively.
On the basis of origin, pollution may be natural (e.g. volcanic eruptions), or anthropogenic or man-made (e.g. industrial pollution)
On the basis of the physical nature of the pollutants, the categories include gases, particulate matter, temperature, noise, radioactivity, etc.
Different types of pollutionAir pollution
Noise pollutionNoise pollution is defined as an unwanted sound that is an irritant and a source of stress.
Sound is the means of communication and entertainment. A low sound is pleasant but a loud sound is unpleasant and is often referred to as noise. The effects of noise have a bearing on the receiver - i.e., man.
Water pollutionWater pollution is the contamination of water bodies (e.g., lakes, rivers, oceans, aquifers and groundwater), very often by human activities. It involves the modification of the physical, chemical and biological properties of water and has a detrimental consequence on living things.