Essay on Air Pollution for Children and Students
7 ways to reduce air pollution Essay - Paper Topics
Bio magnification (a situation where toxins such as heavy metals may pass through trophic levels, becoming exponentially more concentrated in the process.), acid rain (Sulphur dioxide and nitrogen oxides can cause acid rain which lowers the pH value of soil.), smog and haze can reduce the amount of sunlight received by plants to carry out photosynthesis and leads to the production of troposphere ozone which damages plants. Soil can become infertile and unsuitable for plants. This will affect other organisms in the food web. Carbon dioxide emissions cause ocean acidification, the ongoing decrease in the pH of the Earth's oceans as CO2 becomes dissolved. The emission of greenhouse gases leads to global warming which affects ecosystems in many ways. Invasive species can out compete native species and reduce biodiversity. Invasive plants can contribute debris and bio molecules (allelopathy) that can alter soil and chemical compositions of an environment, often reducing native species competitiveness. Thus all these factors posses a great threat to humanity and increases the chances of fight for the survival. If this problem is not controlled then a day will come when whole life will lost in the dark. Pollution can be further sub divided into different types like air pollution, water pollution, noise pollution, soil pollution, radioactive pollution and thermal pollution.
Ways to prevent air pollution Essay Example for Free
A pollutant is a waste material that pollutes air, water or soil. Three factors determine the severity of a pollutant: its chemical nature, the concentration and the persistence. These pollutants can be seen as a basic unit of pollution (just as the cell present in the human body is the basic unit of life same is applied for pollution).These pollutants are released when the pollution is created and it further supports the pollution i.e. help it to show it's disastrous effects. Pollution is spread via various human activities such as dumping of waste and making the land-fills which on decomposition releases methane gas (CH4) which is a greenhouse gas and use of fertilizers, insecticides, pesticides as well as non-biodegradable waste also leads to soil pollution. Waste effluents from industries and factories are discharged into the water sources which harm the aquatic life and most of the forms of life has become endangered due to spreading pollution and various new diseases have also arise such as cholera. Noise from heavy machinery, automobiles and other sources not only irritate people but make them impatient, cause high blood pressure and sometimes even lead to hearing impairment. Pouring of hot water directly into the water bodies leads to sudden change in water temperature which does not allow the aquatic life to survive and adds to their woe. Nuclear test and researches leads to radioactive pollution.