air pollution meaning

air pollution | Description, Pollutants, & Effects | Britannica

Air pollution, release into the atmosphere of various gases, finely divided solids, or finely dispersed liquid aerosols at rates that exceed the natural capacity of the environment to dissipate and dilute or absorb them. These substances may reach concentrations in the air that cause undesirable health, economic, or aesthetic effects.

Air Pollution | Definition of Air Pollution by Oxford ...

noun. mass noun. The presence in or introduction into the air of a substance which has harmful or poisonous effects. 'diesel exhaust and other forms of air pollution'. More example sentences. 'Children are among the heaviest sufferers of air pollution.'.

pollution | meaning of pollution in Longman Dictionary of ...

From Longman Dictionary of Contemporary English. pollution. pol‧lu‧tion /pəˈluːʃən/ S3 W2 noun [ uncountable] 1. SGP DIRTY. the process of making air, water, soil etc dangerously dirty and not suitable for people to use, or the state of being dangerously dirty California's tough anti-pollution laws air/water/soil pollution air pollution from traffic fumes pollution prevention/standards/control The costs of pollution control must be considered. 2.

What is PM2.5 and Why You Should Care | Bliss Air

PM2.5 readings are often included in air quality reports from environmental authorities and companies. Find out what they mean and why you should monitor their levels. PM2.5 refers to atmospheric particulate matter (PM) that have a diameter of less than 2.5 micrometers, which is about 3% the diameter of a human hair.

Pollution - Wikipedia

Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.

What does air pollution mean? - definitions

Definition of air pollution in the dictionary. Meaning of air pollution. What does air pollution mean? Information and translations of air pollution in the most comprehensive dictionary definitions resource on the web.

Air Pollution - Definition, Causes, Effects And Control

Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects the plants, animals, and humans drastically. There is a certain percentage of gases present in the atmosphere.

Air pollution - Wikipedia

Air pollution is the presence of substances in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials. There are different types of air pollutants, such as gases (such as ammonia, carbon monoxide, sulfur dioxide, nitrous oxides, methane and chlorofluorocarbons ), particulates (both organic and inorganic), and biological molecules.

Air Pollution Lesson for Kids: Definition & Facts - Video ...

Air pollution occurs when gases, dust, smoke, or odor get into the air and make it unclean. Air pollution is unsafe for humans and animals to breathe and for plants to live with.

What does PM 2.5 mean in air pollution, and how is it ...

Thomas here, the nerd behind Smart Air. I'm not an expert in air pollution, just a guy who wanted to breathe clean air while living in Beijing. What's PM2.5?

Environmental Pollution - an overview | ScienceDirect Topics

Environmental pollution is the buildup and accumulation of toxic heavy metals in the air, water, and land that reduce the ability of the contaminated sites to support life.

What is air pollution? definition and meaning ...

air pollution. The condition in which air is contaminated by foreign substances, or the substances themselves. Air pollution consists of gaseous, liquid, or solid substances that, when present in sufficient concentration, for a sufficient time, and under certain conditions, tend to interfere with human comfort, health or welfare, and cause environmental damage.

What Is Air Pollution | Environmental Pollution Centers

Air pollution can be defined as the presence of toxic chemicals or compounds (including those of biological origin) in the air, at levels that pose a health risk. In an even broader sense, air pollution means the presence of chemicals or compounds in the air which are usually not present and which lower the quality of the air or cause detrimental changes to the quality of life (such as the damaging of the ozone layer or causing global warming).

Air pollution - definition of air pollution by The Free ...

Air pollution is caused by smoke, toxic gases etc.

Air pollution - Simple English Wikipedia, the free encyclopedia

Air pollution is a type of environmental pollution that affects the air and is usually caused by smoke or other harmful gases, mainly oxides of carbon, sulphur and nitrogen. Claude Monet 's painting of 19th century London smog .

Air Pollution: Sources, Effects, Prevention, and Control ...

Apr 03, 2020 · Air pollution has multiple sources, including natural as well as man-made sources. Keep reading to learn more about the different types of air pollution, their effects, and possible ways to control them.

Air Pollution: Meaning, Causes, Effects, Solution ...

Air pollution is the result of presence of various harmful particles. Air pollution is the pollution of air by different gases, smoke & other particles. Air pollution is the contagion of Earth's atmosphere threatening the survival of plants, animals and humans.

What Is Air Pollution? - ThoughtCo

Nov 05, 2019 · Officially, air pollution can be defined as the presence of harmful substances in the air, either particulates or microscopic biologic molecules, that pose health hazards to living organisms, such as people, animals or plants. Air pollution comes in many forms and may include a number of different pollutants and toxins in various combinations.

Air pollution | Definition of Air pollution at

Contamination of air by smoke and harmful gases, mainly oxides of carbon, sulfur, and nitrogen.

Water pollution | Definition of Water pollution at

Water pollution definition at, a free online dictionary with pronunciation, synonyms and translation. Look it up now!

What Does Air Pollution Season Mean With Climate Change ...

Oct 03, 2020 · Some pollution is a year-round challenge, but it can fluctuate during different times of the year. Climate change is accelerating, so everyone can expect to see pollution intensify along with it. Read on to find out what air pollution season means when combined with climate change.

AIR POLLUTION | meaning in the Cambridge English Dictionary

air pollution definition: 1. harmful substances in the air, often consisting of waste from vehicles or industry: 2. harmful…. Learn more. Cambridge Dictionary +Plus

Air Pollution: Definition, 4 Causes, And Effects For ...

Air pollution definition Air pollution is a condition in which the presence of one or more chemical, physical or biological substances in the atmosphere amounts to harm. Harmful to human, animal, and plant health, disrupt aesthetics and comfort, or damage property.

Solutions to air pollution: how to improve air quality?

Air pollution can be defined as an alteration of air quality that can be characterized by measurements of chemical, biological or physical pollutants in the air. Therefore, air pollution means the undesirable presence of impurities or the abnormal rise in the proportion of some constituents of the atmosphere.

pollution | Definition, History, & Facts | Britannica

Pollution, also called environmental pollution, the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a rate faster than it can be dispersed, diluted, decomposed, recycled, or stored in some harmless form.

Air and Water Pollution |

Air and Water PollutionAir pollution is a general term that covers a broad range of contaminants in the atmosphere. Pollution can occur from natural causes or from human activities. Discussions about the effects of air pollution have focused mainly on human health but attention is being directed to environmental quality and amenity as well.