Air pollution is the contamination of the indoor or outdoor environment by any chemical, physical or biological agent that changes the natural characteristics of the environment. Household combustion appliances, motor vehicles, industrial wastes, and fires in forests are common sources of air pollution. contaminant of major public health concerns includes particulate matter, carbon monoxide, O3, NO2, and sulfur dioxide. Outdoor and indoor air pollution causes respiratory and other diseases and is a major source of morbidity and mortality. WHO data show that nearly all of the world’s population (99%) breathes air that exceeds WHO guideline limits and contains high concentrations of pollutants, low and middle-income countries are the most affected. Air quality is closely related to land. AIR Pollution. air pollution causes. visit our site Healthawarance for more updates.
Sources of Air pollution
Global Climate and Ecosystems. Many sources of air pollution (ie, the burning of fossil fuels) are also sources of greenhouse gas emissions. Policies to reduce air pollution, therefore, offer a win-win strategy for both climate and health, reducing the burden of air pollution-attributable diseases, as well as mitigating climate change near and far. Contributes to long-term mitigation. The atmosphere of various gases, finely divided solids, or finely dispersed liquid aerosols at rates that exceed the natural ability of the atmosphere to disperse and dilute or absorb them. air pollution pdf
These substances can reach concentrations in the air that cause undesirable health, economic or aesthetic effects. This densely forested mountain on the banks of the Yangtze River in China is plagued by air pollution. Rapidly developing countries such as China often have to deal with air pollution as new factories emit substances such as smoke and carbon dioxide into the air, which pollute the air due to the presence of substances in the atmosphere that are harmful to humans and others. Harmful to the health of living beings. , or damage the environment or materials. AIR Pollution.7 causes of air pollution
Types of Air Pollution
There are many different types of air polution, such as gases (including ammonia, carbon monoxide, sulfur dioxide, nitrous oxide, methane, carbon dioxide, and chlorofluorocarbons), particles (both organic and inorganic), and biological molecules. Air pollution can grounds diseases like allergies and even become the reason for death in humans. It can also harm other organisms such as animals and food crops, and harm the natural environment (eg, climate change, ozone depletion, or habitat degradation) or the built environment (eg, acid rain). Polution may occur. Due to both human conditioning and natural occurrence. Industrialization, the use of pesticides and nitrogen-based fertilizers, crop residues in agriculture, urbanization, wildfires, desert dust, and inadequate waste management have intensified environmental health risks and pollution, esp. Low and middle-income countries.
What are Aerosols?
Air pollution, exposure to lead and other chemicals, and improper disposal of hazardous waste, including e-waste, cause debilitating and deadly diseases, create harmful living conditions, and destroy ecosystems. Pollution inhibits economic growth, increases poverty and inequality in both urban and rural areas, and contributes significantly to climate change. Poor people, who cannot afford to protect themselves from the negative effects of pollution, suffer the most. The reason for this are particles of solid and liquid, and certain gases present in the air. These sources of these gases and particles are car and truck exhaust, factories, dust, pollen, mold spores, volcanoes, and wildfires. These particles of solid and liquid present in our air are called aerosols.
Major Air Pollutants
Clean, dry air consists primarily of nitrogen and oxygen—78 percent and 21 percent by volume, respectively. The remaining 1 percent is a mixture of other gases, mostly argon (0.9 percent). With (very small) amounts of carbon dioxide, methane, hydrogen, helium, and more. Water vapor is also common, though quite variable, component of the atmosphere. Typically ranging from 0.01 to 4 percent by volume; In very humid conditions, the humidity can be as high as 5%. There are six major air pollutants designated as “standard” pollutants by the US Environmental Protection Agency (EPA). These are useful as indicators of overall air quality in the environment. Air Pollution contains chemicals and particles in the air that can harm the health of humans, animals, and plants. It also damages buildings. Pollution takes many forms. These include solid particles, gases, or liquid droplets.
Effects of Air Pollution on our Environment
Pollution is the cause of environmental diseases and adults death. Pollution causes more than 11 million before-time deaths. This is many times more than the deaths from AIDS, tuberculosis, and malaria. Global health crises, such as the COVID-19 pandemic, are a reminder of the strong links between environment and health and the need to systematically address such links. Air pollution is a risk multiplier that increases the health consequences of epidemics. Any particle that rises into the air or is formed by chemical reactions in the air can be an aerosol.
Many aerosols come into the atmosphere when we burn fossil fuels including coal, petroleum, and wood. These particles can come from many sources, including car emissions, factories, and even forest fires. Some particles and gases come directly from these sources, but others are form by chemical reactions in the air. Aerosols can also come from other sources, such as ash from volcanic eruptions. Pollen from plants and mold spores are also examples of aerosols.
Research on Air Pollution
Individual studies on Pollution in Air occurred in Argentina, Bangladesh, Colombia, Egypt, Ethiopia, Georgia, India, Lao PDR, Mexico, Myanmar, Nepal, Nicaragua, Nigeria, Pakistan, Peru, and Slovakia. Ghana and Vietnam, at the national and sub-national levels, suggest that pollution-related disease costs are mainly due to outdoor and indoor pollution. and exposure to lead and other chemicals. Gaseous quality air pollutants of primary concern in the urban environment include sulfur dioxide, nitrogen dioxide, and carbon monoxide. They mix directly into the air from fossil fuels including fossil fuel oil, gasoline, and natural gas that is burned in power plants, automobiles, and other combustion sources. Ozone (a major component of smog) is also a gaseous pollutant. It is formed in the atmosphere by complex chemical reactions between nitrogen dioxide and various volatile organic compounds (e.g. gasoline vapors). Solutions of the pollution problems