Human overpopulation The human population on Earth is expanding rapidly which goes hand in hand with the degradation of the environment at large measures. Humanity's appetite for needs is disarranging the environment's natural equilibrium. Production industries are venting smoke and discharging chemicals that are polluting water resources. The smoke that is emitted into the atmosphere holds detrimental gases such as carbon monoxide and sulfur dioxide.
Buffer zone around industrial areas 7. Ozone Layer Depletion Increase in chlorine and other halides containing compounds such as CFC Chlorofluorocarbons in the atmosphere has led to depletion of Ozone in the stratosphere the second layer of atmosphere and increase in the ozone in troposphere lower atmosphere.
As mentioned in this article, ozone in the lower layers of atmosphere is a pollutant. Whereas ozone in stratosphere is important because it acts as protection layer from the harmful UV rays.
A small amount of UV-radiation is necessary for well-being of human beings and other organisms, such as UV-B promote synthesis of vitamin-D.
UV-radiation also act as a germicide to control microorganisms. The ozone formation and depletion is a reversible process. UV rays reacts with Oxygen molecules photo chemical process as shown below. It means ozone is continuously produced and destroyed in the stratosphere.
How the ozone hole forms? The chlorine radicals acts as catalysts and accelerates the depletion process. It means that the amount of ozone gets reduced and the layer cannot prevent the entry of UV radiation. Ozone hole is detected over south pole during the early spring season and sometimes above the north pole.
Why ozone hole appear only in polar regions? Particulate matter size ranges from 0. Particles less than 0. PM 10 — They contain the larger particles with a size ranging from 2. What are its constituents?
What are its applications? Ash that falls in the bottom of the boiler is called bottom ash. Fly ash is a pozzolan, a substance containing aluminous and siliceous material that forms cement in the presence of water.
It can be mixed with lime and water as it forms a compound similar to Portland cement. So fly ash cement can be used in concrete as a substitute to portland cement for certain applications like PCC pavements and bricks manufacturing.
They possess a particular combination of physical and chemical properties such that, once released into the environment, they remain intact for exceptionally long periods of time many years become widely distributed throughout the environment accumulate in the fatty tissue of living organisms including humans bioaccumulation are toxic to both humans and wildlife What is bioaccumulation of POPs?
POPs are not soluble in water. But they are readily absorbed in fatty tissues. There their concentrations can become magnified by up to 70, times biomagnification. Fish, predatory birds, mammals, and humans are high up the food chain and so absorb the greatest concentrations.
What are the harmful effects of POPs? They can cause cancer, allergies and hypersensitivity Cause damage to the central and peripheral nervous systems, reproductive disorders, and disruption of the immune system.
Initially, twelve POPs have been recognised as per the Stockholm convention that are placed in 3 categories Pesticides: The carbon dioxide from the atmosphere dissolves into oceans. The concentration of carbonate ions CO3 — — decreases.
The carbonate ions are essential for the calcification process to build shells. Thus the survival of calcifying organisms becomes difficult. More CaCO3 gets dissolved from the shells of marine organisms to maintain the chemical equilibrium.
The dissolution of CaCO3 releases more carbon to the geochemical cycle thus accentuating the global warming. Acidification would lead certain marine organisms to emit less of the sulphur compounds which affects formation of clouds.
Also it promotes coagulation and flocculation and helps the dissolved solids to settle down.Environmental degradation in Afghanistan has already been rampant in the country for a very long time but modern recognition of the problem by the scientific community and independent watchdog groups has given us recognition of most of the chief problems.
Water contamination and diminution from human-caused, as well as natural, processes is a. Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and barnweddingvt.com is defined as any change or disturbance to the environment perceived to be deleterious or undesirable.
As indicated by the I=PAT equation, environmental impact (I) or. Environmental degradation is the disintegration of the earth or deterioration of the environment through consumption of assets, for example, air, water and soil; the destruction of environments and the eradication of wildlife.
It is characterized as any change or aggravation to nature’s turf seen to be pernicious or undesirable. The environmental degradation is the deterioration of environment through depletion of resources, such as soil, water and air.
When natural habitats destroyed or natural resources depleted, the environment are degraded. Here’s, one example of air pollution which lead to environment . A Cornell University analysis of population trends, climate change, increasing pollution and emerging diseases, as published in the October journal BioScience, points to one inescapable.
Environmental degradation is a term used to describe the many ways in which our natural environment is compromised. The direct consequences of this process are the significant reduction of biological diversity, as well as the destruction of the general health of the environment.