Monday, November 28, 2022
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Air Pollution

What air pollution is and how it affects our health.

Air pollution is a major concern in the new civilized world, with serious toxicological effects on human health and the environment. It has many different sources of emissions, but motor vehicles and industrial processes are major contributors to air pollution. According to the World Health Organization, the top six air pollutants include particulate pollution, ground-level ozone, carbon monoxide, sulfur oxides, nitrogen oxides and lead. Long-term and short-term exposure to airborne toxins can have a variety of toxicological effects in humans, including respiratory and cardiovascular diseases, neuropsychiatric complications, eye irritation, skin diseases, and long-term chronic diseases such as cancer. Several reports have revealed a direct link between exposure to poor air quality and increased morbidity and mortality, mainly due to cardiovascular and respiratory diseases. Air pollution is considered the most important environmental risk for the development and progression of diseases such as asthma, lung cancer, ventricular hypertrophy, Alzheimer’s and Parkinson’s disease, psychiatric complications, autism, retinopathy, fetal growth and low birth weight factor. In this review article, we aim to discuss the toxicology, emission sources and effects on human health of major air pollutants. We also propose practical measures to reduce air pollution in Iran.

Air pollution seriously affects human health. Depending on the level of exposure and the type of pollutants inhaled, these effects can vary, from simple symptoms such as coughing and respiratory irritation to acute illnesses such as asthma and chronic lung disease.

Air pollution affects everything. It is harmful to health and affects the environment by reducing visibility and blocking sunlight, causing acid rain and damaging forests, wildlife and agriculture. Greenhouse gas pollution is the cause of climate change, affecting the entire planet.

The different types of air pollution and their effects.

Like water and soil, air is also susceptible to pollution. Air pollution is the presence of substances (such as gases or particles) or forms of energy in the atmosphere that may pose varying degrees of risk, harm or annoyance to living things. Direct consequences of air pollution include the development of human diseases and conditions and biodiversity, as well as reduced visibility or unpleasant odors in densely populated areas.

Air pollution primarily affects people living in large urban areas, with road emissions contributing the most to the deterioration of air quality. There is also the risk of industrial accidents, where the spread of toxic fumes can be fatal to the population of the surrounding area. The diffusion of pollutants is determined by many parameters, most notably atmospheric stability and wind (6).

Air pollution refers to the release of harmful pollutants (chemicals, toxic gases, particulate matter, biomolecules, etc.) into the Earth’s atmosphere. These pollutants are very harmful and in some cases cause serious health problems. Some of the causes of air pollution are:

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