{"id":11766,"date":"2024-11-26T13:54:21","date_gmt":"2024-11-26T13:54:21","guid":{"rendered":"https:\/\/www.nextias.com\/blog\/?p=11766"},"modified":"2024-11-27T12:51:40","modified_gmt":"2024-11-27T12:51:40","slug":"air-pollution","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/blog\/air-pollution\/","title":{"rendered":"Air Pollution: Causes, Consequences, Control Measures &amp; More"},"content":{"rendered":"\n<p><em><strong>Air Pollution,<\/strong> a pressing environmental and public health issue, has become a significant concern worldwide. Characterised by harmful substances in the air, air pollution adversely affects the environment and human health. This article aims to study air pollution in detail, including its meaning, types, causes, consequences, and related concepts.<\/em><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_56_1 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#What_is_Air_Pollution\" title=\"What is Air Pollution?\">What is Air Pollution?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Air_Pollution_in_India\" title=\"Air Pollution in India\">Air Pollution in India<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Types_of_Air_Pollutants\" title=\"Types of Air Pollutants\">Types of Air Pollutants<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Primary_Pollutants\" title=\"Primary Pollutants\">Primary Pollutants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Secondary_Pollutants\" title=\"Secondary Pollutants\">Secondary Pollutants<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Sources_of_Air_Pollution\" title=\"Sources of Air Pollution\">Sources of Air Pollution<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Impacts_of_Air_Pollution\" title=\"Impacts of Air Pollution\">Impacts of Air Pollution<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Suggested_Measures_to_Control_Air_Pollution\" title=\"Suggested Measures to Control Air Pollution\">Suggested Measures to Control Air Pollution<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Preventive_Measures\" title=\"Preventive Measures\">Preventive Measures<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Effluent_Control\" title=\"Effluent Control\">Effluent Control<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Filters\" title=\"Filters\">Filters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Electrostatic_Precipitators_ESP\" title=\"Electrostatic Precipitators (ESP)\">Electrostatic Precipitators (ESP)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Scrubber\" title=\"Scrubber\">Scrubber<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Other_Measures\" title=\"Other Measures\">Other Measures<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Major_Air_Pollutants_Sources_and_Impacts\" title=\"Major Air Pollutants: Sources and Impacts\">Major Air Pollutants: Sources and Impacts<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Air_Pollutants_Included_in_NAAQS\" title=\"Air Pollutants Included in NAAQS\">Air Pollutants Included in NAAQS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Air_Pollutants_Not_Included_in_NAAQS\" title=\"Air Pollutants Not Included in NAAQS\">Air Pollutants Not Included in NAAQS<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Indoor_Air_Pollution\" title=\"Indoor Air Pollution\">Indoor Air Pollution<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Smog\" title=\"Smog\">Smog<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.nextias.com\/blog\/air-pollution\/#Fly_Ash\" title=\"Fly Ash\">Fly Ash<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-01cae86dbd55486b40bb22d298cb92ac\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"What_is_Air_Pollution\"><\/span><strong>What is Air Pollution?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Air Pollution <\/strong>is the contamination of the atmosphere with harmful substances that can adversely affect human health, ecosystems, and climate.<\/li>\n\n\n\n<li>The contaminating substances that cause air pollution are called Air Pollutants.\n<ul class=\"wp-block-list\">\n<li>These substances can be gases, particles, or a combination of both and come from various sources.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Air Pollution is one of the prominent types of Environmental Pollution.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-background has-fixed-layout\" style=\"background-color:#ebecf0\"><tbody><tr><td><strong>What is Environmental Pollution?<br><\/strong><br><strong>&#8211;<\/strong> Environmental Pollution refers to the introduction of harmful materials into the environment.&nbsp;<br><br><strong>&#8211;<\/strong> In other words, it is the contamination of the physical and biological components of the environment to such an extent that normal environmental processes are adversely affected.<br><br><strong>&#8211;<\/strong> Environmental pollution can be categorised into several types based on the nature of the pollutants and the media they affect, including Air Pollution, Soil Pollution, Water Pollution, etc.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br><br><strong>Read our detailed articles on:<\/strong><br><br>1. <strong><a href=\"https:\/\/www.nextias.com\/blog\/environment-pollution\/\">Environmental Pollution<\/a><\/strong><br>2. <strong><a href=\"https:\/\/www.nextias.com\/blog\/soil-pollution\/\" data-type=\"link\" data-id=\"https:\/\/www.nextias.com\/blog\/soil-pollution\/\">Soil Pollution<\/a><\/strong><br>3. <strong><a href=\"https:\/\/www.nextias.com\/blog\/water-pollution\/\" data-type=\"link\" data-id=\"https:\/\/www.nextias.com\/blog\/water-pollution\/\">Water Pollution<\/a><\/strong><br>4. <strong><a href=\"https:\/\/www.nextias.com\/blog\/noise-pollution\/\" data-type=\"link\" data-id=\"https:\/\/www.nextias.com\/blog\/noise-pollution\/\">Noise Pollution<\/a><\/strong><br>5. <strong><a href=\"https:\/\/www.nextias.com\/blog\/thermal-pollution\/\" data-type=\"link\" data-id=\"https:\/\/www.nextias.com\/blog\/thermal-pollution\/\">Thermal Pollution<\/a><\/strong><br>6. <strong><a href=\"https:\/\/www.nextias.com\/blog\/nuclear-pollution\/\" data-type=\"link\" data-id=\"https:\/\/www.nextias.com\/blog\/nuclear-pollution\/\">Nuclear Pollution<\/a><\/strong><br>7. <strong><a href=\"https:\/\/www.nextias.com\/blog\/marine-pollution\/\" data-type=\"link\" data-id=\"https:\/\/www.nextias.com\/blog\/marine-pollution\/\">Marine Pollution<\/a><\/strong><br>8. <strong>Plastic Pollution<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Air_Pollution_in_India\"><\/span><strong>Air Pollution in India<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Air pollution is a pressing environmental and public health issue in India, stemming from a combination of industrial emissions, vehicular exhaust, burning of biomass, and construction activities.<\/li>\n\n\n\n<li>Rapid urbanisation and reliance on fossil fuels have significantly deteriorated air quality, with cities like Delhi and Kanpur frequently recording hazardous pollution levels.<\/li>\n\n\n\n<li>Seasonal practices like stubble burning in agricultural regions exacerbate the problem, especially in winter.<\/li>\n\n\n\n<li>This pollution contributes to severe health issues such as respiratory diseases, cardiovascular problems, and reduced life expectancy.<\/li>\n\n\n\n<li>Despite policy measures like the National Clean Air Programme (NCAP), achieving sustainable solutions requires stricter enforcement, cleaner energy adoption, and increased public awareness.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-background\" style=\"background-color:#ebecf0\">Read our detailed article on <a href=\"https:\/\/www.nextias.com\/blog\/air-pollution-in-india\/\" data-type=\"link\" data-id=\"https:\/\/www.nextias.com\/blog\/air-pollution-in-india\/\"><strong>Air Pollution in India<\/strong><\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-355fdd045f741914ac50c3bf501741da\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Types_of_Air_Pollutants\"><\/span><strong>Types of Air Pollutants<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"556\" src=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/09\/1111.png\" alt=\"types of air pollutants\" class=\"wp-image-11788\" style=\"width:732px;height:auto\" srcset=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/09\/1111.png 940w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/09\/1111-436x258.png 436w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/09\/1111-768x454.png 768w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/09\/1111-696x412.png 696w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/09\/1111-710x420.png 710w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/09\/1111-150x89.png 150w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/figure>\n<\/div>\n\n\n<p>The air pollutants can be classified into the following two types:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-1e17d054e7797ce157f63881a22c3671\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Primary_Pollutants\"><\/span><strong>Primary Pollutants<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>These pollutants enter the air due to a natural event or human activity.<\/li>\n\n\n\n<li>They can have effects both directly and as precursors of secondary air pollution.<\/li>\n\n\n\n<li>There are five primary pollutants that contribute about 90 per cent of the global air pollution.\n<ul class=\"wp-block-list\">\n<li>These are carbon oxides (CO and CO<sub>2<\/sub>), nitrogen oxides, sulphur oxides, volatile organic compounds (mostly hydrocarbons), and suspended particulate matter.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-bcb772f01381193420dea71c8ec16fbe\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Secondary_Pollutants\"><\/span><strong>Secondary Pollutants<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A secondary pollutant is formed by reacting one primary pollutant with another in the atmosphere.<\/li>\n\n\n\n<li>For example, Ground-Level Ozone, Smog, acid Rain, sulphuric acid, nitric acid, and carbonic acid.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-63f00ee2a0ebf12d3c0dd1be165b9159\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Sources_of_Air_Pollution\"><\/span><strong>Sources of Air Pollution<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The significant causes of air pollution can be seen as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Industrial Emissions<\/strong>: The burning of fossil fuels for energy production, manufacturing processes, and transportation releases air pollution, such as particulate matter, sulfur oxides, nitrogen oxides, and greenhouse gases, into the air.<\/li>\n\n\n\n<li><strong>Vehicle Emissions<\/strong>: Exhaust from cars, trucks, motorcycles, and other vehicles contribute to air pollution, particularly in urban areas.<\/li>\n\n\n\n<li>Domestic Combustion: The burning of wood, coal, and other fuels for cooking and heating in homes releases air pollutants, causing air pollution.<\/li>\n\n\n\n<li><strong>Agricultural Activities<\/strong>: Using chemical fertilisers and pesticides and burning agricultural waste can release harmful substances into the atmosphere.<\/li>\n\n\n\n<li><strong>Natural Sources<\/strong>: Volcanic eruptions, forest fires, and dust storms pollute the air pollution.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-352e7f52cfb83aacaa6dab255d386ac1\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Impacts_of_Air_Pollution\"><\/span><strong>Impacts of Air Pollution<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The impacts of the air pollution can be seen as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Health Impacts<\/strong>\n<ul class=\"wp-block-list\">\n<li>Air pollution poses serious health risks, including respiratory diseases such as asthma and chronic bronchitis, cardiovascular conditions, and premature mortality.<\/li>\n\n\n\n<li>Exposure to high levels of air pollution can also exacerbate health problems and reduce life expectancy.<\/li>\n\n\n\n<li>Long-term exposure to air pollution can also adversely affect cognitive development, especially in children.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Environmental Impact<\/strong>\n<ul class=\"wp-block-list\">\n<li>Air pollution adversely affects ecosystems by contaminating soil and water bodies, damaging vegetation, and impacting wildlife.<\/li>\n\n\n\n<li>High concentrations of sulfur dioxide and nitrogen oxides can lead to Acid Rain, which has its environmental impacts.<\/li>\n\n\n\n<li>Some air pollutants, such as greenhouse gases (e.g., carbon dioxide and methane), contribute to global warming and climate change by trapping heat in the Earth&#8217;s atmosphere.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Economic Impacts<\/strong>\n<ul class=\"wp-block-list\">\n<li>Air pollution can have significant economic costs, including increased healthcare expenditures, reduced productivity, and property damage.<\/li>\n\n\n\n<li>Air pollution reduces agricultural productivity by damaging the soil.<\/li>\n\n\n\n<li>Acid rain can damage forests, lakes, and buildings.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-f4c128a012ab28847cbd50b361e98878\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Suggested_Measures_to_Control_Air_Pollution\"><\/span><strong>Suggested Measures to Control Air Pollution<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The suggested measures to control air pollution are:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-6c1e61cada869c1e168c983653dffceb\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Preventive_Measures\"><\/span><strong>Preventive Measures<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cleaner fuels, such as Liquefied Natural Gas (LNG), are cheaper and more environmentally friendly for power plants.<\/li>\n\n\n\n<li>Hydrogen fuel and e-vehicles should be promoted to control air pollution.<\/li>\n\n\n\n<li>Environment-friendly industrial processes should be encouraged to minimise the emission of pollutants and hazardous wastes.<\/li>\n\n\n\n<li>Increasing the height of chimneys, closing hazardous industries, shifting polluting industries away from cities, and developing and maintaining green belts of adequate width can significantly reduce air pollution.<\/li>\n\n\n\n<li>Setting up emission standards for automobiles has already improved vehicular emissions. Further research and technological innovation will greatly reduce air pollution.<\/li>\n\n\n\n<li>In bigger cities like Delhi and Mumbai, motor vehicles need to obtain Pollution Under Control (PUC) Certificate at regular intervals. This ensures that levels of pollutants emitted from vehicle exhaust are always within the prescribed legal limits.<\/li>\n\n\n\n<li>Alternate fuels like CNG are being encouraged for use in public transport vehicles.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-6f884d0a3cc92630339058f989c0b52e\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Effluent_Control\"><\/span><strong>Effluent Control<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Air Pollution can be minimised by installing devices that reduce the release of pollutants. Some devices that can help minimise the air pollution as they restrict the release of air pollutants in the atmosphere are as follows:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Filters\"><\/span><strong>Filters<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filters remove particulate matter from the gas stream.<\/li>\n\n\n\n<li>The medium of a filter may be made of fibrous materials like cloth, granular materials like sand, rigid materials like a screen, or mats like felt pads.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Electrostatic_Precipitators_ESP\"><\/span><strong>Electrostatic Precipitators (ESP)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The flue gas dust is charged with ions, and the ionised particulate matter is collected on an oppositely charged plate.<\/li>\n\n\n\n<li>The particles are removed from the collecting plate by occasional shaking or by rapping the surface.<\/li>\n\n\n\n<li>ESPs are used in boilers, furnaces, thermal power plants, cement factories, steel plants, etc.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Scrubber\"><\/span><strong>Scrubber<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It is a system that removes harmful materials from industrial exhaust gases before they are released into the environment.<\/li>\n\n\n\n<li>Scrubbers help prevent the formation of acid rain by removing acidic gases from the exhaust before they are released into the sky.<\/li>\n\n\n\n<li>These are mainly of 2 types:\n<ul class=\"wp-block-list\">\n<li><strong>Wet Scrubbing<\/strong>: The removal of harmful components of exhausted flue gases by spraying a liquid substance through the gas.<\/li>\n\n\n\n<li><strong>Dry Scrubbing<\/strong>: The removal of harmful components of exhausted flue gases by introducing a solid substance to the gas &#8211; generally in powdered form.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-ebfb9d046aae84bb7536c5befffac0cf\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Other_Measures\"><\/span><strong>Other Measures<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>In addition to all the measures mentioned above, the following measures can be taken to control air pollution:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Instead of burning waste outdoors, composting waste is advisable. The compost can be used on the farm.<\/li>\n\n\n\n<li>The use of air conditioners should be minimised.<\/li>\n\n\n\n<li>Planting of trees must be encouraged. Trees absorb carbon dioxide from the atmosphere and filter the pollution.<\/li>\n\n\n\n<li>Regular maintenance of vehicles should be ensured for better engine efficiency and reduced pollution levels.<\/li>\n\n\n\n<li>Walking and bicycling for work in the vicinity should be adopted.<\/li>\n\n\n\n<li>The use of public transport should be imbibed at an individual level. Moreover, we should encourage family members to use public conveyance as much as possible. It can save us money and reduce air pollution.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-d0adc4bd9eb2e9b9b187dc32f0e06642\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Air pollution<\/strong> remains a critical issue with far-reaching effects on human health, the environment, and climate. Addressing this challenge requires a multifaceted approach, including legislative measures, technological innovations, public awareness, and international cooperation. Implementing effective strategies and fostering collective efforts can mitigate air pollution and ensure a healthier and more sustainable future for all.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-ac7155d034e4fe7bec52c6419c0149f9\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Major_Air_Pollutants_Sources_and_Impacts\"><\/span><strong>Major Air Pollutants: Sources and Impacts<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Some of the major air pollutants, their sources, and effects are given in the table below.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-220eab2a7a24523d5c1aee51a59c4261\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Air_Pollutants_Included_in_NAAQS\"><\/span><strong>Air Pollutants Included in NAAQS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The air pollutants included in NAAQS are as follows:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-background\" style=\"background-color:#fff2cc\"><thead><tr><th>Pollutant<\/th><th>Description<\/th><th>Source(s)<\/th><th>Impacts<\/th><\/tr><\/thead><tbody><tr><td>Carbon Monoxide (CO)<\/td><td>\u2022 An odourless, colourless, tasteless and poisonous gas.<br>\u2022 Produced by the incomplete burning of fossil fuels like gasoline, oil, and natural gas.<br>\u2022 Slightly lighter than air.<\/td><td>\u2022 Exhaust of Internal Combustion Engines, especially of vehicles with petrol engines.<br>\u2022 Forest fires, Wood stoves, cigarette smoke, and burning of crop residues.<\/td><td>\u2022 CO interferes with the blood\u2019s ability to carry oxygen, slowing reflexes and causing drowsiness. In high concentrations, CO can cause death.<br>\u2022 Heart patients are sensitive to CO and may experience chest pain.<br>\u2022 Adverse effect on the foetus of a pregnant woman.<\/td><\/tr><tr><td>Sulphur Dioxide (SO<sub>2<\/sub>)<\/td><td>\u2022 Produced by volcanoes and in various industrial processes.&nbsp;<\/td><td>\u2022 Combustion of fossil fuels.<br>\u2022 Paper Industry.<br>\u2022 Petroleum Refining.<br>\u2022 Smelting of metals.&nbsp;<\/td><td>\u2022 Respiratory illness, visibility impairment, aggravates existing heart and lung disease.<br>\u2022 Acid Rain<br>\u2022 Aesthetic damage to properties.<\/td><\/tr><tr><td>Nitrogen Oxides (NOx)<\/td><td>\u2022 Nitrogen and oxygen combine during combustion to form nitrogen oxides.<br>\u2022 Many nitrogen oxides are colourless and odorless gases.<\/td><td>\u2022 Burning of biomass and fossil fuels.<br>\u2022 High-temperature combustion (IC Engines, fossil fuel-fired power stations, industries).<\/td><td>\u2022 Irritates nose, throat and lungs.<br>\u2022 Aggravate asthma or chronic bronchitis. Increases vulnerability to respiratory infections such as influenza or common colds.<br>\u2022 Smog formation, Acid rain.<br>\u2022 NOx easily dissolves in water and forms acids, which can cause metal corrosion and deterioration in fabric quality.<\/td><\/tr><tr><td>Lead<\/td><td>\u2022 Bright, silvery, soft, dense, ductile, highly malleable, bluish-white metal.<br>\u2022 Poor electrical conductivity.<br>\u2022 High corrosion resistance.&nbsp;<\/td><td>\u2022 Waste incineration.<br>\u2022 Metal Processing.<br>\u2022 Paint Industry.<br>\u2022 Automobile exhaust.<br>\u2022 Food (as plants absorb lead).&nbsp;<\/td><td>\u2022 Adverse effects on the central nervous system, cardiovascular system, kidneys and immune system.<br>\u2022 Causes blood disorders like anaemia and increase in blood pressure.<br>\u2022 Reduces the cognitive capacity of children.<br>\u2022 Miscarriage, delay in puberty.&nbsp;<br>\u2022 Reduction of fertility in males.<\/td><\/tr><tr><td>Volatile Organic Compounds (VOCs)<\/td><td>\u2022 VOCs are organic compounds that vaporise easily.<br>\u2022 Gasoline, benzene, toluene and xylene are examples.<br>\u2022 Emitted as fumes.<\/td><td>\u2022 Solvents, cleaning supplies, paints, and glues.<br>\u2022 Automobile exhaust.<\/td><td>\u2022 May cause chromosomal damage.<br>\u2022 Affect the reproductive system, developing foetus and fertility in men.<br>\u2022 May cause Cancer.&nbsp;<br>\u2022 Contribute to smog formation.&nbsp;<\/td><\/tr><tr><td>Ozone (O<sub>3<\/sub>)<\/td><td>\u2022 A pale blue gas<br>\u2022 Soluble in water and non-polar solvents.<br>\u2022 Ozone is created by a chemical reaction between NOx and VOCs in sunlight.<\/td><td>\u2022 Formed by the reaction of sunlight with air, containing hydrocarbons and nitrogen oxides emitted by car engines and industrial operations.&nbsp;<br>\u2022 Electronic equipment such as photocopiers.<\/td><td>\u2022 Lung Function deficits.<br>\u2022 Respiratory illness.&nbsp;<br>\u2022 Premature death, asthma, bronchitis, heart attack and other cardiopulmonary problems.<br>\u2022 Stunts the overall growth of some plants. It damages the leaves of trees and other plants.&nbsp;<br>\u2022 Decreases the ability of plants to produce and store food and reduces crop yield.<\/td><\/tr><tr><td>Particulate Matter(PM 2.5 and PM 10)<\/td><td>\u2022 Solid or liquid matter that is suspended in the air.<br>\u2022 To remain in the air, particles usually must be less than 0.1 mm wide and can be as small as 0.00005 mm.<\/td><td>\u2022 Road traffic emissions.<br>\u2022 Industrial Combustion plants for power generation.<br>\u2022 Construction activities.<br>\u2022 Residential combustion.<br>\u2022 Wind-blown dust such as road dust, fly ash, and soot.<\/td><td>\u2022 Visibility reduction.<br>\u2022 Cardiopulmonary problems.<br>\u2022 Asthma, chronic bronchitis and pneumonia in elderly people.<br>\u2022 Aesthetic damage to properties.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-f3c2aa78e0644e944d2ea2bdebed3b2a\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Air_Pollutants_Not_Included_in_NAAQS\"><\/span><strong>Air Pollutants Not Included in NAAQS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The air pollutants which are not included in NAAQS are as follows:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-background has-fixed-layout\" style=\"background-color:#ebecf0\"><thead><tr><th>Pollutant<\/th><th>Description<\/th><th>Source(s)<\/th><th>Impacts<\/th><\/tr><\/thead><tbody><tr><td>Carbon Dioxide (CO<sub>2<\/sub>)<\/td><td>\u2022 Colorless gas.<\/td><td>\u2022 Respiration by animals and plants.&nbsp;<br>\u2022 Burning of Fossil fuels.<\/td><td>\u2022 Green House effect and climate change<br>\u2022 Breathlessness, Headache, Chest congestion.<\/td><\/tr><tr><td>Chloro-fluoro-carbons (CFC)&nbsp;<\/td><td>\u2022 Non-toxic, non-flammable.<\/td><td>\u2022 Air conditioners, refrigerators.<br>\u2022 Foam insulations<br>\u2022 Aerosol propellants<br>\u2022 Solvent cleaners.<\/td><td>\u2022 Depletion of stratospheric Ozone. It protects humans from harmful UV radiation.<br>\u2022 Enhanced UV rays cause skin cancer, cataracts, etc.<\/td><\/tr><tr><td>Noise<\/td><td><\/td><td>\u2022 Factories, Industries, Transportation.<br>\u2022 Religious and cultural activities.<\/td><td>\u2022 Auditory problems.<br>\u2022 Speech interference.<br>\u2022 Annoyance.<br>\u2022 Loss in Efficiency.<br>\u2022 Physiological disorders.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-915cef14857c0a730932ef3656b5cc18\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Indoor_Air_Pollution\"><\/span><strong>Indoor Air Pollution<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Over 3 billion people use solid fuels like wood, charcoal, cow dung and crop waste to cook food on traditional stoves or open fires.<\/li>\n\n\n\n<li>Such inefficient practices produce high levels of indoor air pollution by releasing a range of health-damaging pollutants such as fine particles and carbon monoxide.<\/li>\n\n\n\n<li>Smoke in and around poorly ventilated dwellings can exceed threshold pollution levels and may lead to health hazards.<\/li>\n\n\n\n<li>Women and young children, having high exposure to such pollution, suffer from acute respiratory problems, which include cough, lung infection, asthma, noisy respiration and wheezing.<\/li>\n\n\n\n<li>Indoor air problems can be subtle and are not always recognisable.<\/li>\n\n\n\n<li>According to the World Health Organization (WHO), 4.3 million people die from exposure to household indoor air pollution each year.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-6edd715e7a03689e1fc8f450ef0c5487\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Smog\"><\/span><strong>Smog<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It is a type of air pollution derived from vehicular emissions and industrial fumes that react in the atmosphere with sunlight to form secondary pollutants.<\/li>\n\n\n\n<li>These secondary pollutants combine with the primary emissions to form photochemical smog.<\/li>\n\n\n\n<li>One of the primary components of photochemical smog is Ozone.<\/li>\n\n\n\n<li>Ozone in the stratosphere protects the Blue Planet, but ozone is a harmful pollutant in the troposphere that is detrimental to human and environmental health.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-17ca4eeb60a3372a05b4b5a70f27a321\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Fly_Ash\"><\/span><strong>Fly Ash<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The ash produced mostly by thermal power plants as by-products of coal burning operations is termed Fly ash.<\/li>\n\n\n\n<li>It consists primarily of oxides of silicon, aluminium, iron and calcium.\n<ul class=\"wp-block-list\">\n<li>Magnesium, potassium, sodium, titanium, and sulfur are also present to a lesser degree.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Fly ash pollutes the air as well as water.<\/li>\n\n\n\n<li>It affects vegetation through direct deposition on leaf surfaces or indirectly through its deposition on soil.<\/li>\n\n\n\n<li>Fly ash is used to make bricks and as a landfill material.<\/li>\n\n\n\n<li>Bricks of fly ash have increased strength and durability, making them more resilient.\n<ul class=\"wp-block-list\">\n<li>It is also less susceptible to chemical attacks.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Recognising the value of fly ash, the Ministry of Environment and Forests has made it mandatory to use Fly ash in all construction projects, road embankment works, and landfilling works within a 100 km radius of coal or lignite-based thermal power plants.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Air Pollution, a pressing environmental 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