Geography project work on pollution

Done by: Kevin Portscher Matthew OwyongAshwind Menon

Javier Luo Lim Syu Kuan

pollution

There are five different types of pollution.They are mainly:-water pollution-land pollution- air pollution

-noise pollution and lastly

- deforestation

Water pollution

Water pollution is a large set of adverse effects upon water bodies such as lakes, rivers, oceans and groundwater caused by human activities.

Water pollution has many causes and characteristics. Increase in nutrient loading may lead to Eutrophication. Silt bearing runoff from

many activities including construction sites, deforestation and agriculture can inhibit the

penetration of sunlight through the water column, restricting photosynthesis and causing blanketing

of the lake or river bed, in turn damaging ecological systems.

Water pollution

● Water pollution is a major problem in the global context. It has been suggested that it is the leading worldwide cause of death and diseases and that it accounts for the death of more than 14,000 people daily.

Land pollution

● Land pollution means undesirable physical, biological and chemical factors introduced by human activities. Land pollution is often a consequence of increasing urbanization and industrialization.

Air pollution

● Air pollution is a chemical, physical or biological agent that modifies the natural characteristics of the atmosphere. The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a human threat to human health as well as to the Earth's ecosystems. Gases such as carbon dioxide which contributes to global warming, have recently gained recognition as pollutants by scientists.

Air pollution

● The greenhouse effect is a phenomenon whereby greenhouse gases creates a condition in the upper atmosphere causing a trapping of heat and leading to increased surface and lower tropospheric temperatures.

Noise pollution

● Noise pollution or environmental noise is displeasing human or machine created sound that disrupts the environment. The dominant form of noise pollution is from transportation source, principally motor vehicles. The presence of unwanted sound is called noise pollution. This unwanted sound can seriously damage and effect physiological health.

Noise pollution

● The mechanism for chronic exposure to noise leading to hearing loss is well established. The elevated sound levels causes trauma to the cochlear structure in the inner ear, which gives rise to irreversible hearing loss

deforestation

● Deforestation is the conversion of forested areas to non forest land use such as arable land, pasture, urban use, logged area, or wasteland. The removal or destruction of significant areas of forest cover has resulted in a degraded environment with reduced biodiversity. In many countries, massive deforestation is ongoing and is shaping climate and geography.

● Deforestation results from removal of trees without sufficient reforestation and results in declines in habitat and biodiversity.

Deforestation

● There are many causes ranging from slow forest degradation to sudden and catastrophic clear cutting, slash and burn, urban development, acid rain and wildfires. It is also the result of the deliberate removal of forest cover for agriculture or urban development

Geography project on pollution

● The end..

● Hope you guys have learnt something about pollution