Air pollution

engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber

thumb|Smoke from a fire|alt=

Ozone (), also called trioxygen, is an inorganic molecule with the chemical formula ''''''. It is a pale-blue gas with a distinctively pungent odour. It is an allotrope of oxygen that is much less stable than the diatomic allotrope , breaking down in the lower atmosphere to (dioxygen). Ozone is formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Earth's atmosphere. It is present in very low concentrations throughout the atmosphere, with its highest concentration high in the ozone layer of the stratosphere, which absorbs most of the Sun's ultraviole

presence of dangerous substances in the atmosphere

rain that is unusually acidic

alt=A hazy cityscape to the right and a clear one to the left|thumb|Smog and a sunny day within a 10-day interval in Fanhe Town, Tieling|Fanhe, China

thumb|upright=1.4|Mist and [[fog are aerosols|alt=photograph of heavy mist]]

stratospheric phenomena of Earth

thumb|Emission of soot in the exhaust gas of a large diesel truck, without particle filters

thumb|A misty autumn morning in the outskirts of Rakhiv, [[Carpathian Biosphere Reserve, Ukraine]] thumb|The Château de Chambord in France, in mist Mist is a natural phenomenon caused by small droplets of water aerosols suspended in the cold air, usually by condensation. Physically, it is an example of a dispersion, most commonly seen where water vapor in warm, moist air meets sudden cooling, such as in exhaled air in the winter, or when hot sauna steam is suddenly released outside. Mist occurs naturally as part of weather, typically when humid air comes into contact with surfaces that are muc

Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F). They are produced as volatile derivatives of methane, ethane, and propane.

thumb|Harmattan Haze in [[Abuja]] thumb|right|Haze over the Mojave Desert from a [[brush fire in Santa Barbara, California, seen as the Sun descends on the 2016 June solstice, allows the Sun to be photographed without a filter.]] thumb|Haze as smoke pollution over the Mojave from fires in the Inland Empire, June 2016, demonstrates the loss of contrast to the [[Sun, and the landscape in general.]]

inhalation of smoke by persons other than the intended active smoker

microscopic solid or liquid matter suspended in the Earth's atmosphere

gradual reduction in the amount of global direct irradiance at the Earth's surface; approx. 4% reduction over 1960–1990; caused by an increase in atmospheric particulates (e.g. sulfate aerosols) due to human action

organic chemical with appreciable vapor pressure at room temperature

emitted as a result of the combustion of fuels such as natural gas, gasoline, petrol, biodiesel blends, diesel fuel, fuel oil, or coal

measure of pollution

American chemist and engineer (1889–1944)

defined area

type of pollution caused by agriculture

oil well fires in 1991

atmospheric soot; component of fine particulate matter

gas combustion device

aviation affecting environment

agricultural practice

mathematical simulation of how air pollutants disperse in the ambient atmosphere

treaty

approved environmental solutions

gas exiting to the atmosphere via a flue

legal requirements governing air pollutants released into the atmosphere; set quantitative limits on the permissible amount of specific air pollutants that may be released from specific sources over specific timeframes

syndrome

Movement of pollutant chemicals

Land use and runoff management technique

Air pollution in the Arctic caused by sources further South

exhaust of a diesel engine

Czech meteorological organization

positive and negative impacts of cars on society

diesel engine modification to emit large amounts of dark exhaust fumes

world day

air pollution within a household

the effect of solar radiation being deflected by clouds

treaty

Urban large-scale air purifier

type of law

rating system for respirators designed to protect against contaminated air particles

Africa faces severe degradation.

Wikimedia list article

area of a deployed military base devoted to open-air combustion of waste

environmental issue in Iran

process of collecting and measuring the components of air pollution

common odor found in new cars

acid rain and air pollution arising from steam explosions and large plume clouds containing extremely acidic condensate (mainly hydrochloric acid), which occur when molten lava flows enter cold oceans; a portmanteau of lava and haze

International Labour Organization Convention