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Contamination is the presence of a constituent, impurity, or some other undesirable element that renders something unsuitable, unfit or harmful for both physical body, natural environment, workplace, etc.
the process of making something dirty or poisonous, or the state of containing unwanted or dangerous substances : The water supply is being tested for contamination . The police immediately sealed off the crime scene to prevent contamination of evidence. See. contaminate. Fewer examples. The cause of the contamination was never discovered.
2 days ago · Water pollution is the release of substances (such as chemicals or microorganisms) or energy (in the form of radioactivity or heat) into surface and subsurface waters to the point that the substances interfere with beneficial use of the water or with the natural functioning of ecosystems.
Pollution is the introduction of contaminants into the natural environment that cause adverse change. [1] . Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light).
Environmental contamination is an important factor in many non-infectious diseases, including cancer and respiratory illness. Biological and chemical pollutants enhance the development and spread of antimicrobial-resistant genes in the environment.
Oct 20, 2021 · All life on Earth relies on water, which means water pollution and all its sources are very real threats to our ecosystems. Here, we uncover where water pollution comes from, how the varying...
Pollution, through air, freshwater and ocean contamination, accumulates toxic chemicals in the food chain, harming humans and animals. Biological and chemical pollutants also increase antimicrobial resistance.
Sep 13, 2023 · In 2022, globally, at least 1.7 billion people use a drinking water source contaminated with faeces. Microbial contamination of drinking-water as a result of contamination with faeces poses the greatest risk to drinking-water safety.
6 days ago · Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere. Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution.
May 19, 2022 · Key facts. Food safety, nutrition and food security are inextricably linked. An estimated 600 million – almost 1 in 10 people in the world – fall ill after eating contaminated food and 420 000 die every year, resulting in the loss of 33 million healthy life years (DALYs).
