Air pollution

Key people

• Mark Z. JacobsonAmerican climate- and energy scientist and professor at Stanford University
• Helmut LandsbergClimatologist, geophysicist, and meteorologist (1906–1985)
• Hannah RitchieScottish data scientist
• Linsey MarrAmerican scientist, expert in nanomaterials and viruses

Timeline

• 1830Anti-smoke action and modern protections In the 1830s, anti-smoke groups emerged in Britain, followed by groups in the United States in the 1880s.
• 1920During the interwar period of 1920s and 1930s, a move from coal to gas and oil meant there was less air pollution, but this trend reversed when World War II broke out.
• 1948The 1948 Donora smog in the US, killing 20 people, prompted the US to start regulating air pollution.
• 1950In the 1950s, smog in developed countries was regulated, but other pollutants were not.
• 1952The United Kingdom suffered its worst air pollution during the 1952 Great Smog of London, with some 12,000 deaths, which led to the Clean Air Act 1956.

Read

• Atmospheric chemistry and physicsSeinfeld, John H. · 1997Book
• Air pollution control engineeringNoel De Nevers · 1994Book
• Air pollutionArthur C. Stern · 1962Book
• Air pollution engineering manualAnthony J. Buonicore · 1992Book

Watch

• Air PollutionYouTube
• Unit 8 APES Aquatic and Terrestrial Pollution Review - AP Environmental ScienceYouTube
• Unit 7 APES Air Pollution Review- AP Environmental ScienceYouTube
• Air Pollution | Classification of Air Pollutants | Effect of Air Pollution | Environmental ScienceYouTube
• Air pollution 101- Breathing deadly airYouTube
• Air Pollution | What Causes Air Pollution? | The Dr Binocs Show | Kids Learning Videos|Peekaboo KidzYouTube
• Air Pollution in Tamil | Causes, Effects and Preventive Measures | EVS | Unit 2 | GE3451 in TamilYouTube
• Air Pollution | Environmental Studies | EVSYouTube
• Air Pollution for Kids | Learn about the Causes and Effects of Air PollutionYouTube
• Effect of Air Pollutants on Health | Environmental Chemistry | Chemistry | FuseSchoolYouTube

Listen

• The Extreme Dangers Of Air PollutionElijah OliverPodcast
• Air pollutionImogen AbernethyPodcast
• Combating air pollution - for iPad/Mac/PCThe Open UniversityPodcast
• Fishers Podcast: Episode 1 - Air PollutionTim TandraPodcast

Voices to follow

• Noelle Eckley@NoelleSelin · XChemist
• Linsey Marr@linseymarr · XAmerican scientist, expert in nanomaterials and viruses
• Shelly Miller@ShellyMBoulder · XAmerican mechanical engineer and professor
• Hannah Ritchie@_HannahRitchie · XScottish data scientist

By the numbers

• 4.7CO₂ per person (t) — global, 2024 (World Bank)
• 31.1Forest area (% land) — global, 2023 (World Bank)

Debates

• Should economic development be prioritized over strict air quality regulations in developing nations?One view: Prioritizing economic development can provide resources for poverty reduction and infrastructure, which may eventually support environmental improvements. · Another: Implementing strict air quality regulations early can prevent severe public health crises and long-term environmental damage, leading to more sustainable development.Open question
• Is individual action or government policy more effective in reducing air pollution?One view: Individual actions, such as choosing public transport or reducing energy consumption, collectively create significant impact and foster environmental awareness. · Another: Government policies and regulations, like emission standards and investments in renewable energy, can enforce widespread change and drive systemic solutions.Open question
• Should the focus of air pollution control be on local sources or global climate change?One view: Addressing local air pollution directly improves immediate public health and quality of life for affected communities. · Another: Focusing on global climate change tackles the root causes of many pollutants and has broader, long-term benefits for the entire planet.Open question

Glossary

• Particulate Matter (PM)Tiny solid or liquid particles suspended in the air that can harm human health when inhaled.
• SmogA type of intense air pollution formed by a mix of smoke and fog, or pollutants reacting with sunlight.
• Greenhouse GasesGases in Earth's atmosphere that trap heat, contributing to the greenhouse effect and global warming.
• Volatile Organic Compounds (VOCs)Organic chemicals that easily evaporate into the atmosphere and can react to form ground-level ozone.
• Air Quality Index (AQI)A scale used to report daily air quality, indicating how clean or polluted the air is.
• Acid RainRain or any other form of precipitation that is unusually acidic, caused by atmospheric pollution.

Careers

Roles this can lead toward

Threads 3

Where this connects to other fields — and why it's worth knowing.

• Perception & Attention Psychology

  On smoggy days, chess players make worse moves and students score lower on tests. The tiny pollution particles called PM2.5 are small enough to slip from your lungs into your blood and reach your brain. Dirty air isn't just bad for your lungs, it's a hidden tax that quietly makes everyone think a little worse.

• Mental Health Health

  The tiniest specks of air pollution are small enough to cross from your lungs into your bloodstream and reach your brain, and they're now linked to depression and even dementia. That flips how we think about smog: dirty air isn't just a lung problem, it's a mental-health problem too, quietly seeping into your mind.

• Norms, Deviance & Control Sociology

  Violent crime rose, then fell, about 20 years after cities added lead to gasoline and then took it out. Lead is a poison that wrecks self-control in growing brains. So a decision about what we put in the air may have quietly shaped whether a whole generation could stop itself from lashing out.