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class="breadcrumb_last" aria-current="page">5 Major Air Pollution Sources in the Atmosphere</span></span></div><h1 class="entry-title">5 Major Air Pollution Sources in the Atmosphere</h1><div class="entry-meta entry-meta-divider-customicon"> <div class="meta-comments"><span class="kadence-svg-iconset"><svg class="kadence-svg-icon kadence-comments-alt-svg" fill="currentColor" version="1.1" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 28 28"><title>Comments</title><path d="M10 14c0 1.109-0.891 2-2 2s-2-0.891-2-2 0.891-2 2-2 2 0.891 2 2zM16 14c0 1.109-0.891 2-2 2s-2-0.891-2-2 0.891-2 2-2 2 0.891 2 2zM22 14c0 1.109-0.891 2-2 2s-2-0.891-2-2 0.891-2 2-2 2 0.891 2 2zM14 6c-6.5 0-12 3.656-12 8 0 2.328 1.563 4.547 4.266 6.078l1.359 0.781-0.422 1.5c-0.297 1.109-0.688 1.969-1.094 2.688 1.578-0.656 3.016-1.547 4.297-2.672l0.672-0.594 0.891 0.094c0.672 0.078 1.359 0.125 2.031 0.125 6.5 0 12-3.656 12-8s-5.5-8-12-8zM28 14c0 5.531-6.266 10-14 10-0.766 0-1.531-0.047-2.266-0.125-2.047 1.813-4.484 3.094-7.187 3.781-0.562 0.156-1.172 0.266-1.781 0.344h-0.078c-0.313 0-0.594-0.25-0.672-0.594v-0.016c-0.078-0.391 0.187-0.625 0.422-0.906 0.984-1.109 2.109-2.047 2.844-4.656-3.219-1.828-5.281-4.656-5.281-7.828 0-5.516 6.266-10 14-10v0c7.734 0 14 4.484 14 10z"></path> </svg></span><a class="meta-comments-link anchor-scroll" href="#comments">5 Comments</a></div></div></header> <div class="entry-content single-content"> <figure class="wp-block-image is-style-default"><img fetchpriority="high" decoding="async" width="675" height="451" src="https://earthhow.com/wp-content/uploads/2017/07/Atmosphere-Composition-Title-675x451.png" alt="Atmosphere Composition" class="wp-image-85" srcset="https://earthhow.com/wp-content/uploads/2017/07/Atmosphere-Composition-Title-675x451.png 675w, https://earthhow.com/wp-content/uploads/2017/07/Atmosphere-Composition-Title-300x201.png 300w, https://earthhow.com/wp-content/uploads/2017/07/Atmosphere-Composition-Title-425x284.png 425w, https://earthhow.com/wp-content/uploads/2017/07/Atmosphere-Composition-Title-550x368.png 550w, https://earthhow.com/wp-content/uploads/2017/07/Atmosphere-Composition-Title.png 799w" sizes="(max-width: 675px) 100vw, 675px"/></figure> <div class="wp-block-group" style="padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)"><div class="wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained"> <h2 class="wp-block-heading">Major Air Pollution Sources</h2> <p>Record temperatures year after year. Our <a href="https://earthhow.com/climate-change/">climate is changing</a> so we have to better understand the air pollution sources causing it.</p> <p>Look at each city in the world. Air pollution ranges from sparkling clean to nasty smog. Why is this the case? It’s because of the air pollution sources they are exposed to.</p> <p>These are the major air pollution sources in the world:</p> <ul class="wp-block-list"> <li>Agriculture</li> <li>Industry</li> <li>Vehicles</li> <li>Electricity</li> <li>Natural disasters</li> </ul></div></div><div class="wp-block-group" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)"><div class="wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained"> <h3 class="wp-block-heading">1. Agriculture Production</h3> <div class="wp-block-kadence-image kb-image52_5475b5-3c is-style-default"><figure class="alignright"><img decoding="async" width="300" height="300" src="https://earthhow.com/wp-content/uploads/2018/08/Agriculture-Barn-Farmhouse-Cropland-Landscape-300x300.png" alt="Agriculture Barn Farmhouse Cropland Landscape" class="kb-img wp-image-3259" srcset="https://earthhow.com/wp-content/uploads/2018/08/Agriculture-Barn-Farmhouse-Cropland-Landscape-300x300.png 300w, https://earthhow.com/wp-content/uploads/2018/08/Agriculture-Barn-Farmhouse-Cropland-Landscape-150x150.png 150w, https://earthhow.com/wp-content/uploads/2018/08/Agriculture-Barn-Farmhouse-Cropland-Landscape-425x425.png 425w, https://earthhow.com/wp-content/uploads/2018/08/Agriculture-Barn-Farmhouse-Cropland-Landscape.png 512w" sizes="(max-width: 300px) 100vw, 300px"/></figure></div><p>Agriculture is a major contributor to methane (80%) (CH<sub>4</sub>) and ammonia (90%) (NH<sub>3</sub>). But methane makes up about 9% of total emissions, whereas CO<sub>2</sub> makes up about 82%.<br><strong><br>METHANE:</strong> Methane is a strong greenhouse gas and <a href="https://earthhow.com/greenhouse-effect/">traps heat more efficiently</a> than other gases. But it’s short-lived because it leaves the atmosphere within a decade after it’s released.</p> <p>Bacteria in the guts of grass-eating animals such as cattle release methane as a by-product. Industry, landfills, and natural gas systems also generate a significant amount of methane that adds to air pollution.</p></div></div><div class="wp-block-group" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)"><div class="wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained"> <h3 class="wp-block-heading">2. Transportation</h3> <div class="wp-block-kadence-image kb-image52_c2525b-55 is-style-default"><figure class="alignright"><img decoding="async" width="300" height="300" src="https://earthhow.com/wp-content/uploads/2019/01/Metropolis-City-Tower-Buildings-Urban-Landscape-300x300.png" alt="Metropolis City Tower Buildings Urban Landscape" class="kb-img wp-image-3309" srcset="https://earthhow.com/wp-content/uploads/2019/01/Metropolis-City-Tower-Buildings-Urban-Landscape-300x300.png 300w, https://earthhow.com/wp-content/uploads/2019/01/Metropolis-City-Tower-Buildings-Urban-Landscape-150x150.png 150w, https://earthhow.com/wp-content/uploads/2019/01/Metropolis-City-Tower-Buildings-Urban-Landscape-425x425.png 425w, https://earthhow.com/wp-content/uploads/2019/01/Metropolis-City-Tower-Buildings-Urban-Landscape.png 512w" sizes="(max-width: 300px) 100vw, 300px"/></figure></div><p>Transportation burns gasoline releasing carbon dioxide. Gasoline is carbon bonded to itself or to hydrogen. When a vehicle consumes fuel, it burns these hydrocarbons to generate movement. In turn, it releases water vapor (H<sub>2</sub>O) and carbon dioxide (CO<sub>2</sub>) as air pollution.</p> <p><strong>CARBON DIOXIDE:</strong> As carbon dioxide enters the atmosphere, it traps heat inside contributing to the effects of <a href="https://earthhow.com/greenhouse-effect/">greenhouse gas</a>. Transportation accounts for 15%. But with the advances in electric vehicles and cleaner gasoline, is becoming increasingly difficult to account for.</p></div></div><div class="wp-block-group" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)"><div class="wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained"> <h3 class="wp-block-heading">3. Power Generation</h3> <div class="wp-block-kadence-image kb-image52_615346-54 is-style-default"><figure class="alignright"><img loading="lazy" decoding="async" width="300" height="300" src="https://earthhow.com/wp-content/uploads/2019/01/Transmission-Line-Electricity-Landscape-300x300.png" alt="Transmission Line Electricity Landscape" class="kb-img wp-image-3349" srcset="https://earthhow.com/wp-content/uploads/2019/01/Transmission-Line-Electricity-Landscape-300x300.png 300w, https://earthhow.com/wp-content/uploads/2019/01/Transmission-Line-Electricity-Landscape-150x150.png 150w, https://earthhow.com/wp-content/uploads/2019/01/Transmission-Line-Electricity-Landscape-425x425.png 425w, https://earthhow.com/wp-content/uploads/2019/01/Transmission-Line-Electricity-Landscape.png 512w" sizes="(max-width: 300px) 100vw, 300px"/></figure></div><p>Thermal power plants burning high-sulfur coal is a major contributor to greenhouse gases. Not only does it cause air pollution, but sulfur oxides are a risk to health and the environment.</p> <p>Over time, there has been increasing efficiency in coal use. Overall, thermal power plants have been able to significantly reduce emissions of greenhouse gases and air pollutants.</p></div></div><div class="wp-block-group" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)"><div class="wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained"> <h3 class="wp-block-heading">4. Industrial and Manufacturing</h3> <div class="wp-block-kadence-image kb-image52_38941e-e5 is-style-default"><figure class="alignright"><img loading="lazy" decoding="async" width="300" height="300" src="https://earthhow.com/wp-content/uploads/2019/01/Industrial-Factory-Smoke-Pollution-Landscape-300x300.png" alt="Industrial Factory Smoke Pollution Landscape" class="kb-img wp-image-3299" srcset="https://earthhow.com/wp-content/uploads/2019/01/Industrial-Factory-Smoke-Pollution-Landscape-300x300.png 300w, https://earthhow.com/wp-content/uploads/2019/01/Industrial-Factory-Smoke-Pollution-Landscape-150x150.png 150w, https://earthhow.com/wp-content/uploads/2019/01/Industrial-Factory-Smoke-Pollution-Landscape-425x425.png 425w, https://earthhow.com/wp-content/uploads/2019/01/Industrial-Factory-Smoke-Pollution-Landscape.png 512w" sizes="(max-width: 300px) 100vw, 300px"/></figure></div><p>As developing countries like China and India experience economic growth, they are in a phase of the industrial revolution. This is why cities like Beijing have the highest rates of air pollution and smog in the whole world.</p> <p>As industry and manufacturing grow, they demand more electricity to power them. Because China uses coal for thermoelectric power plants, higher electricity usage contributes to air pollution.</p></div></div><div class="wp-block-group" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)"><div class="wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained"> <h3 class="wp-block-heading">5. Natural Sources</h3> <div class="wp-block-kadence-image kb-image52_1f849e-7b is-style-default"><figure class="alignright"><img loading="lazy" decoding="async" width="290" height="300" src="https://earthhow.com/wp-content/uploads/2018/09/Volcanoes-blank-290x300.png" alt="Volcanoes" class="kb-img wp-image-8987" srcset="https://earthhow.com/wp-content/uploads/2018/09/Volcanoes-blank-290x300.png 290w, https://earthhow.com/wp-content/uploads/2018/09/Volcanoes-blank.png 407w" sizes="(max-width: 290px) 100vw, 290px"/></figure></div><p>Finally, there are natural phenomena that release air pollutants into the atmosphere. For example, <a href="https://earthhow.com/igneous-rocks/">volcanic eruptions release sulfur</a> and carbon dioxide. Not only can volcano eruptions alter the chemical makeup of the atmosphere, but they are an immediate hazardous risk to human health.</p> <p>Dust storms also pose a risk to health. For example, sandstorms irritate eyes, skin, and the respiratory system. Dust storms can be caused by desertification.</p> <p>This is often from overuse of the land, deforestation, or over-grazing. These human activities expose soils and increase evaporation rates on the land.</p></div></div><div class="wp-block-group" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)"><div class="wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained"> <h3 class="wp-block-heading">What are examples of greenhouse gases?</h3> <p>There are natural and human-induced factors that contribute to climate change. When you look back at the history of Earth, climate change has always happened.</p> <div class="wp-block-kadence-image kb-image52_4e9a5c-ad is-style-default"><figure class="alignright size-medium_large"><img loading="lazy" decoding="async" width="425" height="319" src="https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-425x319.png" alt="Climate Change" class="kb-img wp-image-2673" srcset="https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-425x319.png 425w, https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-300x225.png 300w, https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-675x507.png 675w, https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-550x413.png 550w, https://earthhow.com/wp-content/uploads/2018/12/Climate-Change.png 678w, https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-326x245.png 326w, https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-80x60.png 80w, https://earthhow.com/wp-content/uploads/2018/12/Climate-Change-267x200.png 267w" sizes="(max-width: 425px) 100vw, 425px"/></figure></div><ul class="wp-block-list"> <li>Methane (CH<sub>4</sub>)</li> <li>Carbon monoxide (CO)</li> <li>Volatile organic compounds (VOCs)</li> <li>Sulfate (SO<sub>4</sub>)</li> <li>Nitrogen oxide (N<sub>2</sub>O)</li> <li>Chlorofluorocarbons (CFCs)</li> <li>Nitrate (NO<sub>3</sub>)</li> </ul> <p>Do you have any questions or comments? Please get back to us in the comment section below.</p></div></div><div class="newsletter1"><span style="color:#FFFFFF">Subscribe to our newsletter:</span> <div class="tnp tnp-subscription-minimal"><form action="https://earthhow.com/wp-admin/admin-ajax.php?action=tnp&na=s" method="post" style="text-align: center"><input type="hidden" name="nr" value="minimal"> <input type="hidden" name="nlang" value=""> <input class="tnp-email" type="email" required name="ne" value="" placeholder="Email"><input class="tnp-submit" type="submit" value="Subscribe" style=""> </form></div></div><div class="kb-row-layout-wrap kb-row-layout-id18087_9ac6f0-08 alignnone wp-block-kadence-rowlayout"><div class="kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top"> <div class="wp-block-kadence-column kadence-column18087_8adc6b-56 kvs-sm-false kb-section-dir-horizontal"><div class="kt-inside-inner-col"><div class="wp-block-kadence-posts kb-posts kb-posts-id-18087_4ff245-dc content-wrap grid-cols kb-posts-style-unboxed grid-sm-col-2 grid-lg-col-3 item-image-style-above"><article class="entry content-bg loop-entry post-9596 post type-post status-publish format-standard has-post-thumbnail hentry category-atmosphere category-outside-earth mv-content-wrapper"> <a class="post-thumbnail kadence-thumbnail-ratio-2-3" href="https://earthhow.com/thermosphere/"> <div class="post-thumbnail-inner"> <img width="425" height="319" src="https://earthhow.com/wp-content/uploads/2018/08/Thermosphere-Feature-1-425x319.jpg" class="attachment-medium_large size-medium_large wp-post-image" alt="Thermosphere" decoding="async" loading="lazy" srcset="https://earthhow.com/wp-content/uploads/2018/08/Thermosphere-Feature-1-425x319.jpg 425w, https://earthhow.com/wp-content/uploads/2018/08/Thermosphere-Feature-1-300x225.jpg 300w, https://earthhow.com/wp-content/uploads/2018/08/Thermosphere-Feature-1-675x507.jpg 675w, https://earthhow.com/wp-content/uploads/2018/08/Thermosphere-Feature-1-550x413.jpg 550w, https://earthhow.com/wp-content/uploads/2018/08/Thermosphere-Feature-1.jpg 678w" sizes="(max-width: 425px) 100vw, 425px"/></div></a> <div class="entry-content-wrap"> <header class="entry-header"> <h6 class="entry-title"><a href="https://earthhow.com/thermosphere/" rel="bookmark">What Is the Thermosphere? 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But happens to all the carbon black that is release into the ecosystem and the atmosphere? It鈥檚 a product used to make all the tires in the world. Where does it go???</p></div></article> </li> <li id="comment-21499" class="comment odd alt thread-odd thread-alt depth-1"> <article id="div-comment-21499" class="comment-body"> <footer class="comment-meta"> <div class="comment-author vcard"> <b class="fn">Fredrick Hinojosa</b> <span class="says">says:</span></div><div class="comment-metadata"> <a href="https://earthhow.com/air-pollution-sources/#comment-21499"><time datetime="2023-05-27T10:56:34-06:00">May 27, 2023 at 10:56 am</time></a></div></footer> <div class="comment-content"> <p>Hydrogen was left out. Why?</p></div></article> </li> <li id="comment-17310" class="comment even thread-even depth-1"> <article id="div-comment-17310" class="comment-body"> <footer class="comment-meta"> <div class="comment-author vcard"> <b class="fn">Ewan S</b> <span class="says">says:</span></div><div class="comment-metadata"> <a href="https://earthhow.com/air-pollution-sources/#comment-17310"><time datetime="2022-10-13T02:33:30-06:00">October 13, 2022 at 2:33 am</time></a></div></footer> <div class="comment-content"> <p>CO2 is essential to the processes of life on Earth and all of its inhabitants, you are right on that, surely. Although, it is a greenhouse gas like you said, and that means it contributes to heat being held longer in the atmosphere. The abundance of the gas from industry, fossil fuels & vehicle use, and many other sources is what makes the gas toxic and therefore a pollutant because its ratio to water or other life-sustaining properties outweighs the natural amount that keeps the planet at homeostasis. Water vapor carries toxins and partials into the clouds and contributes to acid rain. The ratio of partials to water partials is causing the water to go from a basic pH to an acidic pH, offsetting the natural homeostasis</p></div></article> </li> <li id="comment-13032" class="comment odd alt thread-odd thread-alt depth-1"> <article id="div-comment-13032" class="comment-body"> <footer class="comment-meta"> <div class="comment-author vcard"> <b class="fn">Abbey</b> <span class="says">says:</span></div><div class="comment-metadata"> <a href="https://earthhow.com/air-pollution-sources/#comment-13032"><time datetime="2022-04-13T23:05:10-06:00">April 13, 2022 at 11:05 pm</time></a></div></footer> <div class="comment-content"> <p>CO2 is essential to the processes of life on Earth and all of its inhabitants, you are right on that, surely. Although, it is a greenhouse gas like you said, and that means it contributes to heat being held longer in the atmosphere. The abundance of the gas from industry, fossil fuels & vehicle use, and many other sources is what makes the gas toxic and therefore a pollutant because its ratio to water or other life-sustaining properties outweighs the natural amount that keeps the planet at homeostasis. Water vapor carries the toxins and partials into the clouds and contributes to acid rain. The ratio of partials to water partials is causing the water to go from a basic pH to an acidic pH, offsetting the natural homeostasis</p></div></article> </li> <li id="comment-1737" class="comment even thread-even depth-1"> <article id="div-comment-1737" class="comment-body"> <footer class="comment-meta"> <div class="comment-author vcard"> <b class="fn">Richard Fuller</b> <span class="says">says:</span></div><div class="comment-metadata"> <a href="https://earthhow.com/air-pollution-sources/#comment-1737"><time datetime="2019-07-10T18:57:21-06:00">July 10, 2019 at 6:57 pm</time></a></div></footer> <div class="comment-content"> <p>If CO2 is a colourless, odourless and non-toxic gas that is essential for plant life (and therefore human and animal life,) why is it being labelled as an ‘air pollutant’ here? I understand that it contributes to the greenhouse effect but water vapour is responsible for the majority of the greenhouse effect, yet it isn’t called a ‘pollutant’.</p></div></article> </li> </ol> <div id="respond" class="comment-respond"> <h3 id="reply-title" class="comment-reply-title">Leave a Reply</h3><form action="https://earthhow.com/wp-comments-post.php" method="post" id="commentform" class="comment-form" novalidate><p class="comment-notes"><span id="email-notes">Your email address will not be published.</span> <span class="required-field-message">Required fields are marked <span class="required">*</span></span></p><p class="comment-form-comment comment-form-float-label"><textarea autocomplete="new-password" id="i477054932" name="i477054932" placeholder="Leave a comment..." cols="45" rows="8" maxlength="65525" aria-required="true" required="required"></textarea><textarea id="comment" aria-label="hp-comment" aria-hidden="true" name="comment" autocomplete="new-password" 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