The environmental impact of irrigation includes the changes in quantity and quality of soil and water as a result of irrigation and the ensuing effects on natural and social conditions at the tail-end and downstream of the irrigation scheme.
Causes of Environmental Pollution Let us first take a look at the causes of environmental pollution: Industries have been polluting our environment especially since the beginning of the industrial revolution, as mentioned above, notably due to the increasing use of fossil fuels.
In the 19th century and for a significant part of the 20th century, coal has been use to make machines work faster, replacing human force. Though pollution by industries mainly causes air pollution, soil and water contamination can also occur.
This is particularly the case for power-generating industries, such as plants producing electricity May they be a dam, a nuclear reactor or some other type of plant. Also, the transportation of this energy can be harmful to the environment.
We can take as an example the transportation of petrol through pipelines; if there is a leak in the pipeline, soil will automatically be polluted.
At the same time, if the tanker transporting the petrol from its production plant to the place where it will be consumed leaks or sinks, the water will get contaminated. Ever since men abandoned animal power to travel, pollution of the environment has become higher and higher.
Its levels have only been increasing until now. Similarly to industries, pollution caused by transport can mainly be attributed to fossil fuels. Indeed, humans went from horse carriages to cars, trains which, before electricity, used to be propelled by coaland airplanes.
As the traffic is increasing every day, pollution follows that evolution. Agriculture is mainly responsible for the contamination of water and soil. This is caused by the increased use of pesticides, as well as by the intensive character of its production.
Almost all pesticides are made from chemical substances and are meant to keep diseases and threatening animals away from the crops. However, by keeping these forms of life away, harm is almost always made to the surrounding environment as well. Furthermore, as agriculture gets more and more intensive to feed the increasing world populationmore environments and ecosystems are destroyed to make space for the crops.
Some of them, like rapeseed —used to make oil — demand a lot of space for a relatively small output.
Trading activities including the production and exchange of goods and services. Concerning goods, pollution can be caused by packaging which often involves the use of plastic, which is made from fossil fuels or transport, mainly.
Finally, residential areas provide their fair share of pollution as well. First, to be able to build homes, natural environment has to be destroyed in one way or another. Wildlife and plants are driven away and replaced by human constructions.
As it requires the work of industries, construction itself is also a source of contamination of the environment.
Then, when people settle in, they will produce waste every day, including a part that cannot be processed by the environment without harm yet. Effects of Environmental Pollution Now that we have identified the main causes of environmental pollution, let us study the negative effects it has: The effects of environmental pollution on humans are mainly physical, but can also turn into neuro-affections in the long term.
The best-known troubles to us are respiratory, in the form of allergies, asthma, irritation of the eyes and nasal passages, or other forms of respiratory infections.Perhaps the most obvious examples of a negative human impact on the environment is water pollution.
It's obvious we need water to survive but few people realize how much we need and just how much is available. Humans each require up to 13 gallons (50 litres) a day of fresh water for drinking, cooking and cleaning.
One bit of good news. The pollutants present in the air have the worst effect on the human life and their health. The harmful gases and particles present in the air which are also responsible for the depletion of ozone layer have great negative effects on the human respiratory system and thus giving an invitation to multiple diseases such as lung infections, asthma, chronic bronchitis etc.
Generally any substance that people introduce into the atmosphere that has damaging effects on living things and the environment is considered air pollution. (See what it's like to live in the.
To alleviate the negative effects of atmospheric pollution on health, the World Health Organization (WHO) and the Climate and Clean Air Coalition (CCAC) – made up of the United Nations Environment Programme (UNEP) and 54 nations, among other agencies – launched the BreatheLife initiative.
Unfortunately, we’re not quite there yet, and air pollution continues to show negative effects every day. How Air Pollution Affects Plants and Animals Perhaps the most significant effect of air pollution on the environment is the formation of acid rain.
How does air pollution affect humans? Air pollution damages multiple organs and functions of the human body. Discover it in this infographic. The effects of air pollution on human health. To alleviate the negative effects of atmospheric pollution on health, the World Health Organization.