Let's restore the ecosystem
World Environment Day is celebrated every year on June 5 in countries around the world with the slogan 'Ecosystem Restoration' in response to the call of the United Nations Environment Program. That is why the Government of Nepal is celebrating World Environment Day today.
What is the atmosphere
The biological environment is the environment. That is, the effect of water, air, soil, water, and animals on the environment as a whole. Therefore, the environment creates and influences the physical, chemical and human activities of the organism around it.
According to the World Health Organization's definition, "the environment is related to the external biological and physical, chemical, all behaviors and factors related to the health of any person, plant or organism."
Therefore, public health is interdependent with the natural aspect and man-made environment.
Ecosystem is the effect of any organism on the physical environment. That is, the system that interacts with the biological environment can be called an ecosystem.
Historical background
Following the interaction and debate on the humanitarian environment on the first day of the Stockholm Conference, the decision to celebrate World Environment Day was taken at the United Nations General Assembly in 1972. Two years later, in 1974, World Environment Day was celebrated for the first time with the slogan "One Earth".
World Environment Day, which was celebrated annually until 1987, after 1987, different countries were given the responsibility to celebrate it alternately. Worldwide, 23 percent of deaths are linked to environmental causes. Air pollution kills 7 million people worldwide.
Atmospheric pollution
The mixture of pollutants in the environment changes its natural appearance and characteristics.
As a result, respiratory and non-communicable diseases, including cancer, are on the rise worldwide. Air pollution is one of the major factors affecting environmental health and poses a major risk to human health.
Excessive intake of pollutant particles containing less than 2.5 micrometers in diameter (A: 2.5) of carbon monoxide and nitrogen dioxide into the air can affect the lower and upper respiratory system in children and has long-term effects on the health of adults.
Due to rapid population growth, unplanned urbanization, industrial and vehicle emissions, major cities in Nepal are becoming unhealthy.
Improper implementation of policies and programs are also major factors in increasing air pollution in Kathmandu Valley.
According to the report of Nepal Health Research Council 2015, in some places there is no continuous monitoring of air quality except monitoring of air pollution in special conditions and periods.
Environmental pollution is particularly affecting air, water and soil, with increasing adverse effects on human health.
Importance of Environment Day
Chemicals that can pollute the air, water and soil are an integral part of life. Some of them are natural and some are produced for special purposes.
While others have been produced during unwanted construction. Harmful chemicals are in the air, in the workspace, and in some water and soil.
When eating, coming in contact with, there is contact with harmful chemicals through respiration. In 2016, 1.6 million people died due to various chemicals. Among the harmful chemicals, it is appropriate to consider the following chemicals related to environmental health.
Air pollution
When burning incinerators at less than the recommended temperature (200–400 C), or when burning polyvinyl plastic (blood bags, fluid bags), the ashes in the fly or in the bottom contain organic air pollutants such as dioxin, puran. Which reaches the food chain, which is not in the atmosphere.
These toxins enter the human body through food. When such elements enter the human body for a long time, even in small amounts, it affects the immune system, nervous system, endocrine system and reproductive system.
Too much in a short period of time can affect the skin and liver. Its standard is 0.1 nano grams per toxic equivalent of normal per cubic meter (Pruss-Ustun 1999). Thus emissions of dioxins, furan and mercury are major challenges to the environment and health. Such emissions should be minimized by taking steps such as reducing waste and adopting environmentally friendly technology.
Air pollution
Impact on human health and conservation, impact on flora and fauna, impact on materials and structures, impact on atmosphere, soil and water. , Sulfur, smoke, lead, acidic substances etc. are prominent.
Among the sources of air pollution are vehicles, factories, machinery used in powerful projects, gas stations, fires, volcanoes, pollution of foreign countries, etc. According to the standards of the World Health Organization, Kathmandu has five times more pollution than the standard of air quality.
According to a recent study on the sources of air pollution in Kathmandu (PM2.50) 31 per cent of the equipment, soil dust 26 per cent, age-related garbage 23 per cent, brick-kiln 15 per cent and other 5 per cent have been found.
Air pollution is a big health risk
Particles smaller than 2.5 millimeters enter the lungs and affect the body. For example: heart attack, respiratory disease, pneumonia, cancer, air pollution before childbirth is a health risk.
In children, obstruction of lung function, asthma, excessive coughing, heart related diseases start, while in adults and the elderly, asthma, heart related diseases, chronic diseases, diabetes, lung cancer, etc.
According to the World Health Organization's 2018 report, out of various environmental and air pollutants in Nepal, 21,908 died due to external air pollution and 23,397 died due to indoor pollution.
Water pollution
Contaminated water and lack of sanitation is one of the major diseases affecting human beings. According to the World Health Organization, about 80 percent of the world's communicable diseases are caused by poor sanitation and poor sanitation.
Take, for example, the diarrhea epidemic that spread to more than 16 districts in the Far West and Kanauli in 2065/66. As a result, about 300 people were killed. Also, many people are affected by the various diseases that occur during the rainy season each year.
Many people around the world have lost their lives due to contagious diseases like diarrhea, cholera, measles, gonorrhea, typhoid and worms from contaminated water and food contaminated by garbage.
In Nepal, more than 10,000 children fall ill and die every year. Consumption of safe drinking water reduces the incidence of diarrhea by more than 39 percent. If the bath water is polluted, you should be prone to skin diseases such as measles, mumps, and rubella.
In the same way, if proper waste water is not used properly, the growth of mosquitoes in frozen water can lead to the development of malaria, elephantiasis and dengue. On the other hand, arsenic compound found in water in some places can cause various skin diseases if consumed for a long time.
Soil pollution
Soil pollution contaminates the soil through toxins. For example, soils with high levels of benzene increase the risk of leukemia.
Uncontrolled soils are contaminated with sufficient amounts of harmful bacteria in one or more of these toxins. Excessive and improper use of pesticides in agriculture, excessive industrial activity, is one of the improper and improper management.
The most dangerous soil contaminants are genobiotics substances, which are not found naturally but are synthesized by humans. Most genobiotics are carcinogenic. Soil pollutants include arsenic, mercury, lead, zinc, cadmium, selenium, beryllium, thallium, chromium, copper, etc.
Similarly, leakage / discharge of industrial waste into the soil can cause soil pollution. Chlorinated industrial solvents, dioxins from the manufacture of pesticides and waste incinerators, plasticizers and dispersants, polychlorinated biphenyls etc. are considered to be the major ones. The petroleum industry produces a lot of petroleum hydrocarbon waste.
Some of these wastes, such as benzene and methylbenzene, are carcinogenic in nature. Pesticides are used to control pests. Herbicides, pesticides and fungicides are used in agriculture.
Important soil pollutants include herbs (triglycerides, carbamites, amides, phenolsic acid, realphatic acid). Similarly, pesticides like organophosphates, chlorinated hydrocarbons, arsenic rich compounds, pyrethrum) are very dangerous to humans.
Health risks associated with pesticides include diseases of the central nervous system, weakness of the immune system, cancer, and birth defects.
Soil pollution caused by the process: Some pollutants naturally accumulate in the soil by adopting some very rare processes naturally.
Rainwater is transported along with soil contaminants. Some dry ecosystems, for example, have accumulation of compounds containing perchlorate ions (ClO4–).
Some pollutants can be produced naturally in the soil due to environmental impact. For example, during thunderstorms, chlorine and some metallic soils can be mixed with perchlorates.
Similarly, man-made soil pollution can be caused by various human activities. Such as demolition of old buildings, construction improvement works, spillage of petrol and diesel while transporting vehicles, metal smelting or cutting factories, underground excavation activities, excessive and improper use of chemical pesticides, urban waste, nuclear, electrical waste and coal ash pollute the soil.
Chemical Pollution: Lead
It is a widely used metal. Its annual consumption is 7.1 million tons per year. It is obtained from 45 percent recycling. 78% of the world's lead is consumed for cesarean production.
Sources of risks to human health: Leading flammable substances, mining, smelting and processing, lead-acid batteries, paints and ceramic products, practice and use of ammunition and firearms, recycling and production in informal areas, destruction of leaded paints, traditional makeup Materials / Medicines, Jewelry / Toys, Plastic food containers and lead smelters, Drinking water supply pipes and lead-containing petroleum products, etc.
Major health effects of lead: loss of consciousness in children, death of more than 1 million, loss of 24.4 million years of disability adjusted loss years (DALY's), 63.2% intellectual development disability, 10.3% heart disease worldwide due to high blood pressure. , Dies of a heart attack.
Mercury
Heavy, odorless, shiny liquid metals are available in three forms and can remain liquid at room temperature (25 से C). According to the United States, incinerators incinerated 10 percent of the world's emissions in 1995. Coal burning, gold mining, metal production, incinerated waste, mercury products are considered the main ones.
Vapor from mercury diffusion, combustion and industrial discharge enters the respiratory system, mercury comes in contact with contaminated fish, absorption of mercury through the skin, and dental amalgam used to fill teeth.
Use of mercury in healthcare thermometers, incubators and other equipment Refrigeration thermometers, switches, fluorescent lamps and CFL bulbs, sphygmomanometers, gastrointestinal tubes, esophageal dilators, feeding tubes, miller Abbott tubes, hysterectomy , Batteries, monitors, electrical appliances, old thermostats, etc.
Effects on the ecosystem
Unstable contaminants in the soil can enter atmospheric or water sources, so soil pollution can directly contribute to air and water pollution.
Since acid soils are harmful to many microorganisms, the negative effects of soil pollution can also affect soil texture and quality.
This type of pollution greatly affects crop production. In China, 120 million tons of food has been found to be out of consumption due to the infection of heavy minerals.
Impact on the environment and public health
Not only the pollution of air, water and soil, but also the effects of soil pollutants, excessive exposure to lead, etc. on human health, the health of plants and animals as well as the impact on natural beauty should be taken into consideration. Disposal of waste from any source directly pollutes the water source and the surrounding environment.
The use of non-conventional pesticides (especially DDT) for the control of germs in health waste, the practice of placing such poisons in leaking containers or bags has a direct or indirect effect on the health of everyone. When in direct contact with such objects, contaminated water or food can be toxic.
There is even a fear of fire due to burning of garbage. Expired drugs including antibiotics, heavy metals like mercury, phenols, compounds, deodorants, antiseptics, etc. The effects of residues are toxic to the environment.
For hundreds of years, mercury (thermometers, sphygmomanometers) have been leaking into health facilities or dumping garbage in the environment can cause a lot of damage.
Mercury can enter the body when inhaled as a metallic liquid, its toxins can damage the human brain, spinal cord, kidneys and also affect the physical growth of children.
Elements of climate change
Global climate change includes natural elements such as changes in the way the earth orbits, solar changes, volcanic eruptions, and so on.
Similarly, the nature of greenhouse gases changes with the human inherent elements, while the inherent human inherent elements use coal for energy in home and industrial activities.
Similarly, change in land use (change from forest to cultivation and construction work) also includes fuel used in transportation, deforestation - energy, furniture, railway sleepers and others.
It is estimated that between 2030 and 2050, more than 250,000 people will die due to climate change, with 38,000 adults dying from exposure to temperature, 48,000 from diarrhea, 60,000 from malaria and 95,000 from malnutrition.
Ecological rehabilitation
It is time for countries around the world to take the importance of the present seriously. The environment that has been destroyed till date in the name of development must be rehabilitated.
Only a healthy ecological environment can save the lives of human beings, including climate change and the destruction of biodiversity.
To this end, efforts should be made by the government, industrialists, civil society and the community to reduce the environmental challenges, the challenges of climate change, the exploitation / destruction of nature and the following steps should be taken to reduce pollution:
1. Planting, cultivating, gardening and maintaining greenery in open space.
2. Safe management of nitrogen and greenhouse gases for ecological rehabilitation.
3. A campaign should be launched to green the villages / cities that maintain zero pollution.
4. Every family should plant and promote the plants that have been planted.
5. Nadinala should be kept clean, plants should be planted on the banks.
6. Substances such as lead, mercury, poisons, asbestos should be used and disposed of in an appropriate manner.
7. Dozer terror and environmental pollution on arable land should be stopped on the pretext of development.
8. Old vehicles, brick kilns, equipment should be banned.
9. Curriculum on environment and other pollution should be included in the educational curriculum.
10. At the school level, competitions on essays, attendance answers, posters, paintings, poems, etc. about the environment and its importance should be organized.
11. We need to mitigate the effects of climate change and improve human and institutional capacity, public awareness and education in a timely manner.
12. To implement the commitments made by the United Nations Convention on Climate Change
13. To develop capacity building mechanism for effective planning and management of climate change.
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