What is pollution and pollutants?

Pollution or environmental pollution is the contamination of air, water, and soil or land by solid, liquid, gaseous substances or any forms of energy like heat, sound, and radioactivity which adverse or harmful effects on human beings, animals, or plants in our environment. The substances or molecules which are responsible for water, air, land, or soil pollution of our environment are called pollutants. For scientific solutions, the harmful substance or molecule can be dispersed, diluted, decomposed, recycled, or stored in some harmless form. Air pollution, water pollution, and land pollution are the major kinds of environmental pollution in science (chemistry or biology) which negative effect on our environment or impacts on human health and wildlife. In modern society, we used different types of substances or machinery that polluted our environment by the forms of noise, light (electromagnetic spectrum radiation), and plastic pollution which affect living and non-living organisms of the earth’s environment.

Types of Pollutants

Environmental pollution caused by pollutants are types of substances or forms of energy which harmful effects on air, water, land, or soil in our earth

Types of Pollutants

Different types of polluted substances responsible for different kinds of environmental pollution are classified as gaseous, liquid, solid, and weightless pollutants.

Gaseous Pollutants

Carbon dioxide (CO2), methane (CH4), sulfur dioxide (SO2), nitrogen dioxide (NO2), ozone gas (O3), and hydrocarbon are the major kinds of harmful gaseous pollutants responsible for air and water pollution in the world. The pollutants, sulfur dioxide, and nitrogen react with rainy water or moisture in presence of oxygen or ozone form sulfuric acid or nitric acid rain to increasing the pH level of water or land.

Liquid Pollutants

Water in nature today is never clean since water contains a different level of poisonous liquid pollutants or wastes (sewage wastes, industrial waste), facts for water pollution. These kinds of pollution wastes contain fecal matter, urine, washing, bacteria enter into the river to affect aquatic life and the self-purification system of water is disturbed.

Solid Pollutants

The solid pollutants include rubbish, ashes, dead animals, waste sludge, chemicals, paints, sand, pesticides, insecticides, manures, crop residue, etc. The solid pollutants are mainly two types namely biodegradable and non-biodegradable pollutants responsible for general types of environmental pollution.

Pollutants without weight

The pollution define by specific heat, radioactive decay, noise, or sound comes from the thermal and nuclear power plant and noise generating machines are the common examples of pollutants without weight. Nuclear or thermal power plants are used for energy generation in our daily life.


Renewable or alternative energy comes from sources like sunlight, wind, hydroelectric, geothermal, biomass are naturally replenished on a human timescale

Renewable Energy

Renewable Energy Sources Renewable energy or alternative energy comes from renewable sources like sunlight (solar energy), wind (wind power), rivers water (hydroelectric power), hot springs...
Soil pollution or contamination is a part of land degradation caused by acid rain, excess use of fertilizer, insecticides, herbicides to effect environment

Soil Pollution

What is Soil Pollution? Soil pollution or soil contamination is a part of land degradation caused by acid rain water, excess and wrong use of...
Water Pollution causes and effects, the release of substances go into surface of groundwater or into the rivers, lakes, streams, oceans, water gets polluted

Water Pollution

Water Pollution Causes and Effects Water pollution, the release of insoluble solid particles, soluble salts, sewage (waste water), garbage, low-level radioactive substances, industrial wastages, algae,...
Important, effect and solutions greenhouse gases to climate change and global warming in the earth

Greenhouse Effect

Greenhouse Effect and Global Worming Greenhouse effect and global warming meaning increasing the global temperature of the world which trapping specific heat from the earth's...
Reactor of nuclear power plant for electrical energy generation sources

Nuclear Power

Nuclear Power Generation Process Nuclear power or nuclear energy sources uses increases due to the increasing demand for electrical energy generation in the world. Uranium-235...
Causes and effects of acid rain

Acid Rain

Acid Rain on our Environment Acid rain or acid deposition is the major pollutants of our environment form by the precipitation of acidic components like...

Types of Pollution

Air, water, soil, industrial, noise (sound), thermal, radioactive (radiation) are the common types of environmental pollution causes mainly by today’s quality level living. The facts of pollution, air, water, and land in nature are never clean, it causes different kinds of pollutants, that impact human health, ocean life, or wildlife on our earth.

Air and Water Pollution

Air pollution in our environment meaning, pollutions caused by different kinds of poisonous gases (CO, NO, NO2, SO3, O3), unburnt hydrocarbon, and different types of harmful chemical elements come from different industries.  Water pollution of our environment comes from the insoluble solid particle, soluble salt solutions, sewage, garbage, and low-level radioactive materials, industrial waste, algae, bacteria, etc

Industrial Pollutants

The waste discharges from industry effects on the biosphere like air, water, and land. In industrial pollution, the waste contains harmful chemical elements (Hg, Na, Cd, As, Pb, Ca, etc) and organic or inorganic compounds (acid, alkaline, alcohol, etc) are the most important pollutants which affect harmfully on human, green plant and aquatic or marine life. These types of industrial waste threw into the water (lake or river), the water gets polluted. Greenhouse gases, sulfur dioxide, nitrogen dioxide, and radioactive waste comes from the different types of factory or energy generation process is the part of industrial pollution that polluted our air, water, and land or total global environment.


Calculate oxidation number or state of periodic table chemical elements

Oxidation Number

Oxidation Number of Periodic Table Elements Oxidation number or state of periodic table elements in a chemical compound or molecule is the formal charges (positive...
Liquefaction of Gases at critical temperature, pressure and volume formula

Critical Constants

Critical Constants and Liquefaction of Gases Critical constants like critical temperature, pressure, and volume of gas determine the condition and formula of liquefaction of real...
Atomic number electron configuration of f block elements Lanthanides in periodic table

f block Elements

f-Block Chemical Elements Lanthanum and Actinium f block elements appear in two chemical series like 4f blocks and 5f blocks names as lanthanides or rare earth...
Electron or electronic configuration formula and energy levels of orbitals in periodic table elements

Electron Configuration

Electronic Configuration Formula of Elements Electronic configuration or general electron configuration structure formula of atoms based on the arrangement of orbital energy levels for s,...
Van't Hoff equation-equilibrium

Van’t Hoff Equation

Van't Hoff Equation-Temperature Effect on Equilibrium Van't Hoff equation connecting equilibrium constant and temperature by thermodynamics relation of Gibbs-Helmholtz free energy equation. The standard chemical...